Moro Weather in December
Average highs run from 43°F on December 1 to 38°F on December 31, and lows from 26°F to 24°F. Normal precipitation for the month is 1.61 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
- 40°F
- Average low
- 24°F
- Precipitation
- 1.61 in
- Snowfall
- 5.7 in
- Record high
- 70°FDec 1, 2021
- Record low
- -9°FDec 8, 1972
- Chance of a freeze
- 100%
- Daylight
- 8 h 58 min to 8 h 46 min
- Cloud cover
- 74%
- Humidity
- 86%
- Dew point
- 28°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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Dec 1 | 43°F | 26°F | 70°F 2021 | 10°F 1985 | 40% | 7% |
| Dec 2 | 42°F | 26°F | 64°F 1975 | 10°F 1985 | 40% | 7% |
| Dec 3 | 42°F | 26°F | 66°F 1982 | 13°F 1985 | 40% | 8% |
| Dec 4 | 42°F | 25°F | 63°F 2007 | 7°F 1972 | 40% | 8% |
| Dec 5 | 41°F | 25°F | 58°F 1953 | 7°F 1972 | 40% | 8% |
| Dec 6 | 41°F | 25°F | 59°F 1977 | 15°F 2013 | 40% | 8% |
| Dec 7 | 41°F | 25°F | 60°F 2015 | -4°F 1972 | 40% | 9% |
| Dec 8 | 41°F | 25°F | 66°F 2015 | -9°F 1972 | 40% | 9% |
| Dec 9 | 40°F | 25°F | 61°F 1979 | -7°F 1972 | 40% | 9% |
| Dec 10 | 40°F | 25°F | 68°F 2025 | -9°F 1972 | 40% | 10% |
| Dec 11 | 40°F | 24°F | 64°F 2025 | -8°F 1972 | 40% | 10% |
| Dec 12 | 40°F | 24°F | 64°F 2025 | -3°F 1972 | 40% | 10% |
| Dec 13 | 39°F | 24°F | 59°F 1988 | -4°F 1972 | 39% | 10% |
| Dec 14 | 39°F | 24°F | 59°F 1979 | 6°F 1972 | 39% | 11% |
| Dec 15 | 39°F | 24°F | 64°F 1959 | 13°F 1972 | 39% | 11% |
| Dec 16 | 39°F | 24°F | 61°F 1999 | 0°F 1964 | 39% | 11% |
| Dec 17 | 39°F | 24°F | 57°F 2025 | -1°F 1964 | 39% | 12% |
| Dec 18 | 39°F | 24°F | 58°F 2024 | 3°F 1964 | 39% | 12% |
| Dec 19 | 39°F | 24°F | 56°F 1953 | 7°F 1984 | 39% | 12% |
| Dec 20 | 39°F | 24°F | 62°F 1974 | 0°F 1990 | 39% | 12% |
| Dec 21 | 38°F | 24°F | 60°F 1974 | -5°F 1990 | 39% | 13% |
| Dec 22 | 38°F | 24°F | 61°F 1980 | -4°F 1990 | 39% | 13% |
| Dec 23 | 38°F | 24°F | 57°F 2013 | -3°F 1990 | 39% | 13% |
| Dec 24 | 38°F | 24°F | 55°F 1978 | 0°F 1983 | 39% | 13% |
| Dec 25 | 38°F | 24°F | 62°F 1957 | 12°F 1983 | 39% | 13% |
| Dec 26 | 38°F | 24°F | 60°F 1967 | 6°F 1983 | 39% | 13% |
| Dec 27 | 38°F | 24°F | 59°F 1949 | 5°F 1983 | 39% | 14% |
| Dec 28 | 38°F | 24°F | 57°F 1967 | 4°F 1983 | 39% | 14% |
| Dec 29 | 38°F | 24°F | 63°F 1998 | -2°F 1990 | 39% | 14% |
| Dec 30 | 38°F | 24°F | 61°F 1958 | -1°F 1968 | 39% | 14% |
| Dec 31 | 38°F | 24°F | 60°F 1958 | -3°F 1978 | 39% | 14% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 7:23 AM, sunset 4:21 PM
- December 31
- sunrise 7:43 AM, sunset 4:29 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00355734 (Moro), public domain. Records: NOAA GHCN-Daily, station USW00024219, 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.