Grissom Air Force Base climate

Grissom Air Force Base Weather in December

NOAA 1991-2020 normals for Young America, 19.7 km from Grissom Air Force Base

Average highs run from 42°F on December 1 to 33°F on December 31, and lows from 27°F to 19°F. Normal precipitation for the month is 2.29 in over about 10 wet days.

December day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Grissom Air Force Base, in °F, with the record for each date.-40-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
37°F
Average low
23°F
Precipitation
2.29 in
Snowfall
5.1 in
Record high
71°FDec 7, 1998
Record low
-24°FDec 22, 1989
Chance of a freeze
100%
Daylight
9 h 29 min to 9 h 19 min
Cloud cover
72%
Humidity
86%
Dew point
26°F
Wind
11.6 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Dec 142°F27°F68°F 19704°F 197632%7%
Dec 241°F26°F66°F 19701°F 194232%8%
Dec 341°F26°F70°F 1982-3°F 192932%8%
Dec 441°F26°F67°F 19820°F 191132%8%
Dec 540°F26°F65°F 19982°F 199132%9%
Dec 640°F25°F69°F 20011°F 200532%9%
Dec 739°F25°F71°F 1998-9°F 197732%9%
Dec 839°F25°F65°F 1946-9°F 197733%9%
Dec 939°F25°F64°F 1952-7°F 191733%10%
Dec 1038°F24°F61°F 1952-9°F 191733%10%
Dec 1138°F24°F66°F 1931-12°F 197733%10%
Dec 1238°F24°F61°F 2015-4°F 191733%10%
Dec 1337°F24°F66°F 2015-8°F 190333%11%
Dec 1437°F23°F64°F 2015-5°F 198533%11%
Dec 1537°F23°F65°F 1933-9°F 190133%11%
Dec 1637°F23°F64°F 1948-12°F 195134%12%
Dec 1736°F23°F64°F 1984-11°F 198934%12%
Dec 1836°F22°F58°F 1984-10°F 198534%12%
Dec 1936°F22°F56°F 1918-11°F 198334%12%
Dec 2036°F22°F64°F 1949-13°F 198934%12%
Dec 2135°F22°F62°F 1988-10°F 198934%13%
Dec 2235°F21°F62°F 1949-24°F 198934%13%
Dec 2335°F21°F61°F 1933-24°F 198934%13%
Dec 2435°F21°F63°F 1932-20°F 198334%13%
Dec 2534°F21°F61°F 1982-20°F 198334%14%
Dec 2634°F20°F65°F 1982-17°F 198334%14%
Dec 2734°F20°F62°F 2019-9°F 198334%14%
Dec 2834°F20°F63°F 2008-17°F 192434%14%
Dec 2934°F20°F64°F 1984-10°F 200034%14%
Dec 3033°F19°F61°F 1984-15°F 198334%15%
Dec 3133°F19°F65°F 1951-16°F 197634%15%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Grissom Air Force Base, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EST).

December 1
sunrise 7:49 AM, sunset 5:18 PM
December 31
sunrise 8:08 AM, sunset 5:27 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00129905 (Young America), public domain. Records: NOAA GHCN-Daily, station USC00124662, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.