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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 [CST] Min Max Remarks Cocorahs
1 51 47 49.0 16.0 0.37 W 31 1934 29.51 30.02 0.05
2 51 45 48.0 17.0 0.02 N 36 1734# 29.59 30.01 1.19
3 54 42 48.0 17.5 0.00 1 N 20 2044# 30.00 30.20 0.00
4 47 32 39.5 25.5 0.18 0.00 N 26 1216 30.03 30.11 Snow/Rain mix 0.22
5 46 29 37.5 27.5 0.00 SE 14 1636 30.06 30.30
6 60 46 53.0 12.0 0.27 1 E 20 1848# 29.92 30.07
7 60 55 57.5 7.5 0.38 1 NE 17 1222 29.89 30.03 1.18@
8 75 55 65.0 0.0 0.02 1 SW 29 1756 M M no pressure Trace
9 66 41 53.5 11.5 0.00 NE 28 0928 29.71 30.05 0.00
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Sum 449.0 4.0 1.24 0.00
Average 57.2 44.1 50.6
Maximum 75 65 51 30.48
Minimum 46 29 29.45
Temperature Data Precipitation Data Weather Symbols:
Average Monthly: 51 Total for month: 1.24 1 Fog
JSC avg-EFD Climo -4.4 JSC - EFD Climo: -2.36 2 Fog, VSBY <= 1/4 SM
Highest: 75 on 8th Greatest daily total: 0.38 3 Thunder
Lowest: 29 on 5th Days with 0.01" or more: 6 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: 38.27 8 Smoke or Haze
Days with thunder: 0 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: -9.13*
Remarks:
New Period of Record for Ellington Field climatology for comparison. POR 07/1941 - 08/2007
*Rainfall is underestimated due to equipment probems from July through December.
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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