Dayton climate

Dayton Weather in December

NOAA 1991-2020 normals for Dayton, 0.2 km from Dayton

Average highs run from 39°F on December 1 to 35°F on December 31, and lows from 13°F to 9°F. Normal precipitation for the month is 0.82 in over about 7 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 Dayton, in °F, with the record for each date.-50-250255075100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
36°F
Average low
10°F
Precipitation
0.82 in
Snowfall
11.7 in
Record high
77°FDec 2, 2021
Record low
-37°FDec 24, 1983
Chance of a freeze
100%
Daylight
9 h 02 min to 8 h 51 min
Cloud cover
68%
Humidity
70%
Dew point
16°F
Wind
8.5 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 139°F13°F76°F 2021-21°F 198521%17%
Dec 238°F13°F77°F 2021-21°F 198521%17%
Dec 338°F12°F65°F 1975-9°F 197821%17%
Dec 438°F12°F70°F 1965-28°F 197221%18%
Dec 537°F12°F64°F 2023-30°F 197221%18%
Dec 637°F11°F72°F 1981-28°F 197221%18%
Dec 737°F11°F67°F 2020-28°F 201321%18%
Dec 837°F11°F72°F 2020-30°F 197221%18%
Dec 936°F11°F69°F 1957-29°F 197221%18%
Dec 1036°F11°F70°F 1981-18°F 197221%19%
Dec 1136°F10°F66°F 2004-20°F 197221%19%
Dec 1236°F10°F70°F 2017-15°F 200022%19%
Dec 1335°F10°F60°F 1960-10°F 200822%19%
Dec 1435°F10°F62°F 1952-16°F 200822%20%
Dec 1535°F10°F63°F 2006-19°F 196422%20%
Dec 1635°F10°F63°F 2023-24°F 196422%20%
Dec 1735°F9°F68°F 1980-29°F 196422%20%
Dec 1835°F9°F68°F 1988-24°F 198322%20%
Dec 1935°F9°F62°F 2004-21°F 199022%20%
Dec 2035°F9°F62°F 2024-25°F 199022%20%
Dec 2135°F9°F62°F 1994-35°F 198922%20%
Dec 2235°F9°F66°F 1955-35°F 198922%20%
Dec 2335°F9°F60°F 1955-28°F 198322%20%
Dec 2435°F9°F60°F 2025-37°F 198322%20%
Dec 2535°F9°F68°F 2025-32°F 198322%20%
Dec 2635°F9°F67°F 1980-29°F 199622%20%
Dec 2735°F9°F66°F 1980-10°F 197122%20%
Dec 2835°F9°F60°F 1965-22°F 199022%20%
Dec 2935°F9°F65°F 1956-30°F 199022%20%
Dec 3035°F9°F55°F 1956-30°F 199022%20%
Dec 3135°F9°F56°F 1996-29°F 197822%20%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Dayton, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MST).

December 1
sunrise 7:27 AM, sunset 4:29 PM
December 31
sunrise 7:47 AM, sunset 4:38 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00482399 (Dayton), public domain. Records: NOAA GHCN-Daily, station USW00024029, 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.