Kittitas County Weather in December
Average highs run from 40°F on December 1 to 35°F on December 31, and lows from 26°F to 23°F. Normal precipitation for the month is 1.54 in over about 12 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 36°F
- Average low
- 24°F
- Precipitation
- 1.54 in
- Record high
- 66°FDec 1, 2021
- Record low
- -16°FDec 27, 1948
- Chance of a freeze
- 100%
- Daylight
- 8 h 47 min to 8 h 34 min
- Cloud cover
- 72%
- Humidity
- 92%
- Dew point
- 24°F
- Wind
- 4.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 40°F | 26°F | 66°F 2021 | 10°F 2014 | 37% |
| Dec 2 | 40°F | 25°F | 57°F 2008 | 6°F 2022 | 37% |
| Dec 3 | 39°F | 25°F | 53°F 2007 | 7°F 2006 | 37% |
| Dec 4 | 39°F | 25°F | 54°F 2007 | 6°F 2022 | 37% |
| Dec 5 | 39°F | 25°F | 49°F 1953 | 8°F 2013 | 37% |
| Dec 6 | 38°F | 25°F | 52°F 2008 | -6°F 1956 | 38% |
| Dec 7 | 38°F | 25°F | 52°F 1943 | -5°F 1956 | 38% |
| Dec 8 | 38°F | 25°F | 50°F 2025 | 0°F 2009 | 38% |
| Dec 9 | 37°F | 24°F | 52°F 2015 | 3°F 2009 | 38% |
| Dec 10 | 37°F | 24°F | 63°F 2025 | 0°F 2009 | 39% |
| Dec 11 | 37°F | 24°F | 58°F 2025 | 4°F 2009 | 39% |
| Dec 12 | 37°F | 24°F | 56°F 2025 | 5°F 2000 | 39% |
| Dec 13 | 37°F | 24°F | 52°F 2013 | -7°F 1955 | 39% |
| Dec 14 | 36°F | 24°F | 52°F 1953 | -13°F 1955 | 39% |
| Dec 15 | 36°F | 24°F | 57°F 2025 | 2°F 1948 | 39% |
| Dec 16 | 36°F | 24°F | 55°F 2013 | -1°F 2008 | 40% |
| Dec 17 | 36°F | 23°F | 49°F 1998 | -1°F 2016 | 40% |
| Dec 18 | 36°F | 23°F | 51°F 2011 | 0°F 2016 | 40% |
| Dec 19 | 35°F | 23°F | 56°F 2004 | -6°F 2008 | 40% |
| Dec 20 | 35°F | 23°F | 52°F 2020 | 2°F 1998 | 40% |
| Dec 21 | 35°F | 23°F | 53°F 2014 | -8°F 2022 | 40% |
| Dec 22 | 35°F | 23°F | 53°F 2013 | -9°F 2022 | 40% |
| Dec 23 | 35°F | 23°F | 55°F 2013 | -2°F 1951 | 40% |
| Dec 24 | 35°F | 23°F | 46°F 2013 | -6°F 1951 | 40% |
| Dec 25 | 35°F | 23°F | 51°F 1950 | -10°F 1948 | 40% |
| Dec 26 | 35°F | 23°F | 47°F 1953 | -14°F 1948 | 40% |
| Dec 27 | 35°F | 23°F | 49°F 1949 | -16°F 1948 | 40% |
| Dec 28 | 35°F | 23°F | 50°F 2011 | -1°F 1948 | 40% |
| Dec 29 | 35°F | 23°F | 52°F 2018 | -3°F 1955 | 40% |
| Dec 30 | 35°F | 23°F | 46°F 2011 | -8°F 1955 | 40% |
| Dec 31 | 35°F | 23°F | 53°F 1958 | -6°F 1951 | 40% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 7:28 AM, sunset 4:15 PM
- December 31
- sunrise 7:49 AM, sunset 4:23 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024220 (Ellensburg Bowers Fld), public domain. Records: NOAA GHCN-Daily, station USW00024220, 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.