McGill Weather in December
Average highs run from 44°F on December 1 to 41°F on December 31, and lows from 17°F to 14°F. Normal precipitation for the month is 0.67 in over about 5 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
- 41°F
- Average low
- 14°F
- Precipitation
- 0.67 in
- Snowfall
- 8.2 in
- Record high
- 67°FDec 3, 1958
- Record low
- -29°FDec 22, 1990
- Chance of a freeze
- 100%
- Daylight
- 9 h 36 min to 9 h 27 min
- Cloud cover
- 56%
- Humidity
- 69%
- Dew point
- 16°F
- Wind
- 7.8 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 | 44°F | 17°F | 64°F 2008 | -3°F 1967 | 13% | 6% |
| Dec 2 | 44°F | 17°F | 64°F 2021 | -5°F 1967 | 13% | 7% |
| Dec 3 | 43°F | 16°F | 67°F 1958 | -6°F 2004 | 13% | 7% |
| Dec 4 | 43°F | 16°F | 65°F 2007 | -17°F 2013 | 13% | 7% |
| Dec 5 | 43°F | 16°F | 65°F 1939 | -23°F 2013 | 13% | 7% |
| Dec 6 | 43°F | 15°F | 61°F 1991 | -19°F 2013 | 13% | 7% |
| Dec 7 | 42°F | 15°F | 63°F 1981 | -21°F 1951 | 14% | 7% |
| Dec 8 | 42°F | 15°F | 64°F 1940 | -19°F 1951 | 14% | 7% |
| Dec 9 | 42°F | 15°F | 64°F 1975 | -27°F 1972 | 14% | 8% |
| Dec 10 | 42°F | 14°F | 62°F 2025 | -28°F 1972 | 14% | 8% |
| Dec 11 | 41°F | 14°F | 64°F 2025 | -24°F 1972 | 14% | 8% |
| Dec 12 | 41°F | 14°F | 63°F 2004 | -15°F 1972 | 14% | 8% |
| Dec 13 | 41°F | 14°F | 60°F 1969 | -16°F 1972 | 14% | 8% |
| Dec 14 | 41°F | 14°F | 62°F 2025 | -15°F 1972 | 15% | 8% |
| Dec 15 | 41°F | 14°F | 61°F 2025 | -9°F 1972 | 15% | 8% |
| Dec 16 | 41°F | 14°F | 61°F 1958 | -11°F 1965 | 15% | 9% |
| Dec 17 | 41°F | 13°F | 66°F 1979 | -15°F 1965 | 15% | 9% |
| Dec 18 | 41°F | 13°F | 62°F 1958 | -16°F 1965 | 15% | 9% |
| Dec 19 | 41°F | 13°F | 64°F 2025 | -18°F 2012 | 15% | 9% |
| Dec 20 | 40°F | 13°F | 61°F 2024 | -20°F 1990 | 15% | 9% |
| Dec 21 | 40°F | 13°F | 59°F 1906 | -26°F 1990 | 16% | 9% |
| Dec 22 | 40°F | 13°F | 61°F 2025 | -29°F 1990 | 16% | 9% |
| Dec 23 | 40°F | 13°F | 58°F 1901 | -28°F 1990 | 16% | 9% |
| Dec 24 | 40°F | 13°F | 63°F 1950 | -22°F 1990 | 16% | 9% |
| Dec 25 | 40°F | 13°F | 59°F 1908 | -17°F 1948 | 16% | 9% |
| Dec 26 | 40°F | 13°F | 58°F 1976 | -19°F 1988 | 16% | 9% |
| Dec 27 | 40°F | 13°F | 59°F 1947 | -22°F 1988 | 16% | 9% |
| Dec 28 | 40°F | 13°F | 59°F 2017 | -16°F 1988 | 16% | 9% |
| Dec 29 | 41°F | 13°F | 62°F 2017 | -18°F 1988 | 16% | 9% |
| Dec 30 | 41°F | 13°F | 59°F 1980 | -19°F 1990 | 16% | 9% |
| Dec 31 | 41°F | 14°F | 58°F 1963 | -20°F 2010 | 16% | 9% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 6:40 AM, sunset 4:16 PM
- December 31
- sunrise 6:59 AM, sunset 4:26 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00264950 (Mcgill), public domain. Records: NOAA GHCN-Daily, station USW00023154, 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.