Malheur County Weather in December
Average highs run from 44°F on December 1 to 39°F on December 31, and lows from 19°F to 16°F. Normal precipitation for the month is 0.89 in over about 10 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
- 40°F
- Average low
- 17°F
- Precipitation
- 0.89 in
- Record high
- 66°FDec 1, 2021
- Record low
- -16°FDec 21, 1998
- Chance of a freeze
- 100%
- Daylight
- 9 h 13 min to 9 h 03 min
- Cloud cover
- 70%
- Humidity
- 76%
- Dew point
- 22°F
- Wind
- 8.9 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 | 44°F | 19°F | 66°F 2021 | 4°F 2015 | 31% |
| Dec 2 | 43°F | 19°F | 64°F 2021 | 8°F 2006 | 31% |
| Dec 3 | 43°F | 19°F | 63°F 2007 | 2°F 2006 | 31% |
| Dec 4 | 43°F | 19°F | 65°F 2021 | 3°F 2006 | 31% |
| Dec 5 | 42°F | 18°F | 60°F 2023 | 3°F 1998 | 31% |
| Dec 6 | 42°F | 18°F | 59°F 2023 | 5°F 2009 | 31% |
| Dec 7 | 42°F | 18°F | 57°F 2015 | -5°F 2013 | 31% |
| Dec 8 | 41°F | 18°F | 59°F 2015 | -11°F 2013 | 31% |
| Dec 9 | 41°F | 18°F | 61°F 2025 | -9°F 2009 | 31% |
| Dec 10 | 41°F | 18°F | 66°F 2025 | -8°F 2009 | 31% |
| Dec 11 | 40°F | 17°F | 65°F 2025 | -4°F 2009 | 31% |
| Dec 12 | 40°F | 17°F | 62°F 2010 | -2°F 2013 | 31% |
| Dec 13 | 40°F | 17°F | 57°F 2010 | 4°F 2022 | 30% |
| Dec 14 | 40°F | 17°F | 60°F 2002 | 2°F 2005 | 30% |
| Dec 15 | 40°F | 17°F | 52°F 2025 | 0°F 2005 | 30% |
| Dec 16 | 39°F | 17°F | 58°F 2025 | -6°F 2008 | 30% |
| Dec 17 | 39°F | 17°F | 56°F 2025 | -11°F 2008 | 30% |
| Dec 18 | 39°F | 16°F | 59°F 2024 | -9°F 2016 | 30% |
| Dec 19 | 39°F | 16°F | 57°F 2025 | -4°F 2016 | 29% |
| Dec 20 | 39°F | 16°F | 60°F 2020 | -11°F 1998 | 29% |
| Dec 21 | 39°F | 16°F | 59°F 2020 | -16°F 1998 | 29% |
| Dec 22 | 39°F | 16°F | 53°F 2025 | -13°F 1998 | 29% |
| Dec 23 | 39°F | 16°F | 56°F 2025 | -12°F 1998 | 29% |
| Dec 24 | 39°F | 16°F | 56°F 2025 | 3°F 2016 | 29% |
| Dec 25 | 39°F | 16°F | 53°F 2006 | 0°F 2016 | 29% |
| Dec 26 | 39°F | 16°F | 54°F 2022 | -6°F 2016 | 29% |
| Dec 27 | 39°F | 16°F | 55°F 2022 | 5°F 1999 | 29% |
| Dec 28 | 39°F | 16°F | 58°F 2011 | 1°F 1999 | 29% |
| Dec 29 | 39°F | 16°F | 57°F 1998 | 2°F 1999 | 29% |
| Dec 30 | 39°F | 16°F | 55°F 2011 | -5°F 2014 | 29% |
| Dec 31 | 39°F | 16°F | 56°F 2013 | -9°F 2014 | 29% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 8:03 AM, sunset 5:16 PM
- December 31
- sunrise 8:22 AM, sunset 5:25 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00357310 (Rome 2 Nw), public domain. Records: NOAA GHCN-Daily, station USW00094107, 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.