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JSC Weather Monthly Summary


JSC Building 30 Weather         Month:  Jul          Year:       2009

        Temperature in F                        Precipitation (inches)              Peak Wind (mph)             Altimeter

     Day  Max    Min   Average   HDD     CDD    Water   Snow  Snow Depth   Weather Direction Speed  Time [CDT]  Min    Max    Remarks

       1   93    75      84.0           19.0    0.00                             3     E       17      1612#    29.79  29.88
       2   93    77      85.0           20.0    0.00                                   S       17      1904#    29.88  30.00                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
       3   93    79      86.0           21.0    0.00                                   SE      20      1814     29.98  30.09                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
       4   96    79      87.5           22.5    0.00                                   S       30      1330     29.88  30.05                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
       5   96    78      87.0           22.0    0.00                                   S       31      1846#    29.82  29.96                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
       6   95    79      87.0           22.0    0.00                             3     SW      28      1746     29.77  29.93                                                                                                                                                                                                                                                                 
       7   85    72      78.5           13.5    0.12                             3     SW      29      1632     29.80  29.93                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
       8   92    79      85.5           20.5    0.56                           1,3     SE      30      1710#    29.80  29.90  Patchy AM ground fog                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
       9   95    78      86.5           21.5    Trace                            1     SE      23      1734     29.88  30.01  Patchy AM ground fog                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
      10   93    79      86.0           21.0    0.00                                   E       23      1422     30.01  30.11                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
      11   92    78      85.0           20.0    0.00                                   SE      18      1808     30.08  30.16                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
      12   91    77      84.0           19.0    0.00                                   S       19      1856#    30.03  30.15                                                                                                                             
      13   94    77      85.5           20.5    0.00                             8     S       21      1950     29.94  30.08  Hazy                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
      14   93    78      85.5           20.5    0.00                             8     SE      23      1714     29.94  30.05  Hazy                                                                                                                                                                                                                                                                                                                                                                                               
      15   93    78      85.5           20.5    0.00                                   SE      22      1546     29.99  30.08                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
      16   89    79      84.0           19.0    0.00                             3     SW      23      1952#    29.94  30.06                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
      17   92    79      85.5           20.5    0.02                             3     NW      22      1118     29.95  30.06                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
      18   91    72      81.5           16.5    1.03                             3     W       37      1550     29.99  30.11                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
      19   85    73      79.0           14.0    0.03                             3     S       26      1344#    30.01  30.14                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
      20   88    76      82.0           17.0    0.03                             3     SE      31      1254     29.89  30.03                                                                                                                                                                                                                                                                                          
      21   87    80      83.5           18.5    0.08                             3     S       31      1134     29.85  29.93                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
      22   93    78      85.5           20.5    0.00                             8     SW      22      1306#    29.88  29.98  Hazy                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
      23   92    75      83.5           18.5    0.03                             3     NW      33      1608     29.93  30.02                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
      24   88    76      82.0           17.0    0.00                             3     S       18      1806#    29.96  30.03                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
      25   92    77      84.5           19.5    0.00                                   NW      20      1730     29.95  30.02                                                                                                                                                                                                                                                                                                                                                                                                                                    
      26   91    77      84.0           19.0    0.00                                   E       23      1806     29.95  30.04                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
      27   90    78      84.0           19.0    0.00                                   S       30      1500#    29.89  30.02                                
      28   90    80      85.0           20.0    0.00                                   S       31      1752     29.83  29.95                               
      29   91    80      85.5           20.5    0.00                                   S       32      1458     29.84  29.93                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
      30   92    82      87.0           22.0    0.00                                   S       31      1630#    29.85  29.97                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
      31   89    76      82.5           17.5    0.74                             3     S       34      1432     29.96  30.06                                                                                                                                                                                                                                                                                                                                                            

Sum                             00.0   602.5    2.64            

Average 91.4    77.5      84.4                    
Maximum   96      82                                                                           37                      30.16
Minimum   85      72                                                                                            29.77

Temperature Data         Precipitation Data              Weather Symbols:
Average Monthly:      84 Total for month:             2.64      1 Fog
JSC avg-EFD Climo   +0.9 JSC - EFD Climo:            -1.66      2 Fog, VSBY <= 1/4 SM
Highest:      96 on  5th Greatest daily total:        1.03      3 Thunder
Lowest:       72 on 18th Days with 0.01" or more:        9      4 Ice Pellets
                         Days with 0.10" or more:        4      5 Hail
                         Days with 0.50" or more:        3      6 Glaze or rime
                         Days with 1.00" or more:        1      7 Blowing Dust or Sand, VSB <= 1/2 SM
                         Year-to-date rainfall:      26.76      8 Smoke or Haze
                         Days with thunder:             13      9 Blowing Snow
                         Lightning flashes within      TBD      X Tornado, waterspout, funnel cloud
                         Days with dense fog:            0      # Last of more than one occurrence
JSC - EFD climate year to end of month: +0.26
Remarks: 
Year-to-date rainfall is underestimated due to data outage in February.
Period of Record of Ellington Field climatology for comparison.  POR 07/1941 - 08/2007 


JSC weather observations are considered experimental and unofficial. Quality control procedures of the data appearing
on this page are minimal. SMG does not maintain a routine weather watch so absence of a weather type does
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