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JSC Weather Monthly Summary


JSC Building 30 Weather         Month:  Dec          Year:       2008

        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   57     47      52.0  13.0             0.00                                  NW      45   1538        29.92  30.28

       2   66     45      55.5   9.5             0.00                                  E       28   1616        30.06  30.29                                                                                                                                                                                                                                                                                                                                                                                                                                        

       3   MM     MM      MM.M   M.M             Trace                                 M       MM   MMMM        MM.MM  MM.MM  No data                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

       4   54     44      49.0  16.0             0.00                                  M       MM   MMMM        30.22  30.37  No data 0000 - 0856                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

       5   49     39      44.0  21.0             0.00                                  NE      29   0210        30.21  30.42                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

       6   62     43      52.5  12.5             0.00                                  N       14   1554#       30.12  30.23                                                                                                                                                                                                                

       7   58     48      53.0  12.0             0.00                                  E       21   1300        30.14  30.30                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

       8   70     55      62.5   2.5             0.00                                  SE      29   2150        29.77  30.14                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

       9   75     46      60.5   4.5             0.29                           1,3    NW      46   2046        29.60  29.93                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

      10   46     30      38.0  27.0             0.07   0.60           T          1    NW      44   0744        29.91  30.14  Snowfall estimated                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

      11   53     30      41.5  23.5             0.02   0.10           T               NW      33   1206        30.01  30.20  Snowfall estimated                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

      12   55     38      46.5  18.5             0.00                                  S       13   2254        30.20  30.36                                                                                   

      13   68     50      59.0   6.0             0.00                                  S       40   1424#       29.83  30.23                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

      14   73     65      69.0           4.0     0.00                                  SE      32   1550#       29.82  29.97                                                                                                                                                                                                                                                                                                                                        

      15   67     41      54.0  11.0             Trace                            2    N       26   2258        29.95  30.24                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  

      16   45     40      42.5  22.5             0.02                             2    N       24   0018        30.08  30.23                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

      17   58     44      51.0  14.0             0.02                             1    NE      11   1038#       30.08  30.17                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

      18   73     57      65.0   0.0             0.11                             2    SE      24   1516        30.05  30.18                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

      19   77     66      71.5           6.5     0.03                                  SW      19   1848#       30.02  30.13                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

      20   77     65      71.0           6.0     0.00                                  SW      26   1552        29.88  30.04                                                                                                                                                                                                             

      21   69     44      56.5   8.5             0.00                                  NE      40   1944        29.96  30.44                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

      22   44     32      38.0  27.0             0.00                                  N       28   0552        30.20  30.49                                                                                                                                                                                                                                                                                                                                                                                                                                           

      23   69     41      55.0  10.0             0.32                                  SE      36   1346        29.89  30.21                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

      24   74     68      71.0           6.0     0.00                                  SE      26   0230        29.91  30.08  No data 1250-2400                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

      25   MM     MM      MM.M           M.M     0.00                                  MM      MM   MMMM        MM.MM  MM.MM  No data                                                                                                                                                                                                                                                                                                                                                             

      26   74     69      71.5           6.5     0.02                                  S       32   2306#       29.91  30.06  No data 0000-0156                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

      27   73     55      64.0   1.0             0.17                             3    NW      37   1736        29.85  30.13                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

      28   60     48      54.0  11.0             0.00                                  N       32   0038        30.13  30.30                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          

      29   61     44      52.5  12.5             0.00                                  NE      15   1144        30.26  30.37                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

      30   64     49      56.5   8.5             0.00                                  S       14   2212#       30.05  30.28                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

      31   62     52      57.0   8.0             0.00                                  NE      24   1058#       30.07  30.22                                                                                                                                                                                                                                                                                                  

Sum                            300.0    29.0     1.07   0.70                      

Average 63.2    48.3      55.7                    

Maximum   77      74                                                                            46                     30.49

Minimum   44      30                                                                                            29.60



Temperature Data         Precipitation Data              Weather Symbols:

Average Monthly:      56 Total for month:             1.07      1 Fog

JSC avg-EFD Climo   +0.7 JSC - EFD Climo:            -2.53      2 Fog, VSBY <= 1/4 SM

Highest:      77 on 20th Greatest daily total:        0.32      3 Thunder

Lowest:       30 on 11th Days with 0.01" or more:       10      4 Ice Pellets

                         Days with 0.10" or more:        4      5 Hail

                         Days with 0.50" or more:        0      6 Glaze or rime

                         Days with 1.00" or more:        0      7 Blowing Dust or Sand, VSB <= 1/2 SM

                         Year-to-date rainfall:      37.36      8 Smoke or Haze

                         Days with thunder:              2      9 Blowing Snow

                         Lightning flashes within      TBD      X Tornado, waterspout, funnel cloud

                         Days with dense fog:            3      # Last of more than one occurrence

JSC - EFD climate year to end of month: -10.04*



Remarks: 

*Does not include rainfall from Hurricane Ike and week following.  

New Period of Record for 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
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