Jay County climate

Jay County Weather in December

NOAA 1991-2020 normals for Portland 1 Sw, 2.5 km from Jay County

Average highs run from 44°F on December 1 to 35°F on December 31, and lows from 27°F to 20°F. Normal precipitation for the month is 2.39 in over about 9 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 Jay County, in °F, with the record for each date.-40-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
39°F
Average low
23°F
Precipitation
2.39 in
Snowfall
3.5 in
Record high
72°FDec 3, 1982
Record low
-21°FDec 22, 1989
Chance of a freeze
100%
Daylight
9 h 30 min to 9 h 20 min
Cloud cover
73%
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 144°F27°F63°F 19989°F 197630%4%
Dec 243°F26°F62°F 198212°F 197930%4%
Dec 343°F26°F72°F 19820°F 197630%4%
Dec 443°F26°F68°F 19826°F 199130%5%
Dec 542°F26°F65°F 19983°F 202530%5%
Dec 642°F25°F68°F 20014°F 200531%5%
Dec 742°F25°F70°F 1998-5°F 197731%5%
Dec 841°F25°F70°F 1998-3°F 200531%5%
Dec 941°F25°F62°F 1991-2°F 199531%5%
Dec 1041°F24°F62°F 2023-5°F 197731%6%
Dec 1140°F24°F66°F 1971-13°F 197731%6%
Dec 1240°F24°F60°F 2021-1°F 197731%6%
Dec 1340°F24°F64°F 20150°F 198831%6%
Dec 1439°F23°F57°F 2015-12°F 201031%6%
Dec 1539°F23°F65°F 1984-8°F 201031%7%
Dec 1639°F23°F63°F 2021-7°F 198931%7%
Dec 1738°F23°F64°F 1984-10°F 198931%7%
Dec 1838°F22°F61°F 1984-5°F 198931%7%
Dec 1938°F22°F54°F 2025-7°F 198331%7%
Dec 2038°F22°F56°F 1976-8°F 200431%8%
Dec 2137°F22°F59°F 1978-7°F 198131%8%
Dec 2237°F22°F56°F 1997-21°F 198931%8%
Dec 2337°F21°F56°F 2006-21°F 198931%8%
Dec 2437°F21°F63°F 2015-20°F 198331%8%
Dec 2536°F21°F60°F 1982-18°F 198331%9%
Dec 2636°F21°F64°F 1982-12°F 198331%9%
Dec 2736°F20°F63°F 2016-8°F 200031%9%
Dec 2836°F20°F63°F 2021-6°F 200031%9%
Dec 2935°F20°F67°F 2025-7°F 200031%9%
Dec 3035°F20°F63°F 1984-15°F 198331%9%
Dec 3135°F20°F58°F 1990-11°F 197631%10%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Jay County, 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 7:44 AM, sunset 5:14 PM
December 31
sunrise 8:03 AM, sunset 5:23 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00127069 (Portland 1 Sw), public domain. Records: NOAA GHCN-Daily, station USC00127069, 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.