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JSC Weather Monthly Summary
JSC Building 30 Weather Month: May 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 82 73 77.5 12.5 0.01 S 24 1252 29.95 30.05
2 80 74 77.0 12.0 0.00 SW 25 1754 29.77 29.99
3 83 72 77.5 12.5 0.00 SW 26 1438# 29.75 29.88
4 80 64 72.0 7.0 0.00 N 20 0838# 29.85 29.98
5 82 73 77.5 12.5 0.00 S 25 1508 29.79 29.95
6 84 75 79.5 14.5 0.00 S 32 1048# 29.76 29.87
7 83 76 79.5 14.5 0.00 S 23 1628# 29.83 29.92
8 84 76 80.0 15.0 0.00 S 28 1212 29.77 29.86
9 84 76 80.0 15.0 0.00 S 23 1026 29.81 29.99
10 85 76 80.5 15.5 0.00 S 24 1400 29.95 30.04
11 85 76 80.5 15.5 Trace S 23 1534# 29.93 30.04
12 84 75 79.5 14.5 0.00 SE 23 1610# 29.90 30.03
13 74 76 75.0 10.0 0.00 S 29 1358# 29.87 29.95
14 83 74 78.5 13.5 0.00 SE 23 1818# 29.92 30.07
15 74 75 74.5 9.5 0.00 SE 22 1232 29.92 30.05
16 85 71 78.0 13.0 0.00 NE 20 2328# 29.93 30.04
17 75 63 69.0 4.0 0.00 NE 30 2144# 30.02 30.15
18 76 59 67.5 2.5 0.00 N 26 1408 30.09 30.20
19 76 61 68.5 3.5 0.00 SE 19 1504# 30.10 30.21
20 80 65 72.5 7.5 0.00 SE 16 1400# 29.98 30.14
21 82 68 75.0 10.0 0.00 E 17 1428 29.90 30.01
22 82 68 75.0 10.0 0.00 NE 16 1644# 29.85 29.95
23 80 70 75.0 10.0 0.17 3 NW 18 1500# 29.80 29.91
24 81 65 73.0 8.0 0.53 1,3 W 45 1604 29.76 29.86
25 86 66 76.0 11.0 0.00 SE 19 1848# 29.69 29.82
26 90 MM MM.M M.M 0.00 8 M MM MMMM MM.MM MM.MM
27 81 73 77.0 12.0 0.02 3 SE 32 1450 29.72 29.90 28 84 71 77.5 12.5 0.00 8 NE 18 1158 29.83 29.94
29 87 71 79.0 14.0 0.00 SW 16 2006 29.91 30.04
30 87 74 80.5 15.5 0.00 SW 19 1920 29.94 30.05
31 83 72 77.5 12.5 0.00 E 22 1522 29.94 30.05
Sum 00.0 340.0 0.73
Average 82.0 70.9 76.5
Maximum 90 76 45 30.21
Minimum 74 59 29.69
Temperature Data Precipitation Data Weather Symbols:
Average Monthly: 77 Total for month: 0.73 1 Fog
JSC avg-EFD Climo +1.0 JSC - EFD Climo: -3.77 2 Fog, VSBY <= 1/4 SM
Highest: 90 on 26th Greatest daily total: 0.53 3 Thunder
Lowest: 59 on 18th Days with 0.01" or more: 4 4 Ice Pellets
Days with 0.10" or more: 2 5 Hail
Days with 0.50" or more: 1 6 Glaze or rime
Days with 1.00" or more: 0 7 Blowing Dust or Sand, VSB <= 1/2 SM
Year-to-date rainfall: 22.77 8 Smoke or Haze
Days with thunder: 3 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: +5.67
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
not necessarily mean that the phenomenon did not occur. Please read the disclaimer
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