Pomeroy climate

Pomeroy Weather in December

NOAA 1991-2020 normals for Rockwell City, 17.7 km from Pomeroy

Average highs run from 38°F on December 1 to 28°F on December 31, and lows from 19°F to 11°F. Normal precipitation for the month is 1.34 in over about 5 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 Pomeroy, in °F, with the record for each date.-40-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
32°F
Average low
15°F
Precipitation
1.34 in
Snowfall
7.3 in
Record high
69°FDec 16, 2021
Record low
-26°FDec 24, 1983
Chance of a freeze
100%
Daylight
9 h 17 min to 9 h 07 min
Cloud cover
63%
Humidity
85%
Dew point
19°F
Wind
11.9 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 138°F19°F60°F 1962-7°F 198518%9%
Dec 237°F19°F67°F 1998-11°F 198518%9%
Dec 337°F19°F63°F 1973-9°F 198518%9%
Dec 437°F18°F61°F 2012-10°F 202518%9%
Dec 536°F18°F65°F 2017-11°F 202518%9%
Dec 636°F18°F65°F 1939-13°F 197218%10%
Dec 735°F17°F59°F 1984-17°F 197618%10%
Dec 835°F17°F66°F 1946-18°F 191718%10%
Dec 934°F17°F60°F 1946-17°F 191718%10%
Dec 1034°F16°F59°F 1979-15°F 191718%10%
Dec 1134°F16°F61°F 1965-15°F 191718%10%
Dec 1233°F16°F64°F 1968-19°F 193218%11%
Dec 1333°F16°F53°F 1921-22°F 191718%11%
Dec 1432°F15°F53°F 1921-22°F 190118%11%
Dec 1532°F15°F56°F 1939-20°F 190118%11%
Dec 1632°F15°F69°F 2021-18°F 193218%11%
Dec 1731°F14°F64°F 1939-15°F 191417%11%
Dec 1831°F14°F59°F 1923-22°F 198517%11%
Dec 1931°F14°F59°F 1976-24°F 198317%11%
Dec 2030°F14°F55°F 1967-21°F 198317%11%
Dec 2130°F13°F57°F 1941-23°F 198917%12%
Dec 2230°F13°F56°F 1941-24°F 198917%12%
Dec 2329°F13°F52°F 1899-24°F 198917%12%
Dec 2429°F13°F50°F 1936-26°F 198317%12%
Dec 2529°F12°F54°F 1936-21°F 200017%12%
Dec 2629°F12°F60°F 1936-22°F 191417%12%
Dec 2728°F12°F54°F 1959-17°F 195117%12%
Dec 2828°F12°F60°F 1984-15°F 199317%12%
Dec 2928°F11°F58°F 2002-25°F 191717%12%
Dec 3028°F11°F56°F 1936-25°F 191717%12%
Dec 3128°F11°F59°F 2004-18°F 197617%12%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Pomeroy, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CST).

December 1
sunrise 7:29 AM, sunset 4:46 PM
December 31
sunrise 7:48 AM, sunset 4:55 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00137161 (Rockwell City), public domain. Records: NOAA GHCN-Daily, station USC00132999, 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.