Grantsville Weather in January
Average highs run from 37°F on January 1 to 39°F on January 31, and lows from 19°F to 20°F. Normal precipitation for the month is 0.81 in over about 7 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 37°F
- Average low
- 19°F
- Precipitation
- 0.81 in
- Snowfall
- 7.2 in
- Record high
- 67°FJan 31, 2003
- Record low
- -15°FJan 22, 1937
- Chance of a freeze
- 100%
- Daylight
- 9 h 20 min to 10 h 07 min
- Cloud cover
- 61%
- Humidity
- 76%
- Dew point
- 20°F
- Wind
- 6.5 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 |
|---|---|---|---|---|---|---|
| Jan 1 | 37°F | 19°F | 60°F 1943 | -8°F 1979 | 25% | 16% |
| Jan 2 | 37°F | 19°F | 63°F 1997 | -5°F 1979 | 25% | 16% |
| Jan 3 | 37°F | 19°F | 58°F 2025 | -1°F 1952 | 25% | 16% |
| Jan 4 | 37°F | 19°F | 58°F 1956 | -6°F 1942 | 25% | 15% |
| Jan 5 | 37°F | 19°F | 61°F 1921 | -10°F 1910 | 25% | 15% |
| Jan 6 | 37°F | 19°F | 58°F 1927 | -9°F 1913 | 25% | 15% |
| Jan 7 | 37°F | 19°F | 62°F 1969 | -7°F 1913 | 25% | 15% |
| Jan 8 | 37°F | 19°F | 59°F 2009 | -10°F 1937 | 25% | 15% |
| Jan 9 | 37°F | 19°F | 63°F 1990 | -12°F 1937 | 24% | 15% |
| Jan 10 | 37°F | 19°F | 62°F 1923 | -8°F 1937 | 24% | 15% |
| Jan 11 | 37°F | 19°F | 58°F 1953 | -2°F 1937 | 24% | 15% |
| Jan 12 | 37°F | 19°F | 60°F 1953 | -13°F 1963 | 24% | 15% |
| Jan 13 | 37°F | 19°F | 60°F 1928 | -12°F 1963 | 24% | 14% |
| Jan 14 | 37°F | 19°F | 57°F 1928 | -3°F 2013 | 24% | 14% |
| Jan 15 | 37°F | 19°F | 61°F 1996 | -2°F 1947 | 24% | 14% |
| Jan 16 | 37°F | 19°F | 60°F 1974 | -6°F 1917 | 24% | 14% |
| Jan 17 | 37°F | 19°F | 58°F 1971 | -5°F 1917 | 23% | 14% |
| Jan 18 | 37°F | 19°F | 58°F 1909 | -7°F 1917 | 23% | 14% |
| Jan 19 | 37°F | 19°F | 59°F 1920 | -10°F 1963 | 23% | 14% |
| Jan 20 | 37°F | 19°F | 59°F 1953 | -10°F 1930 | 23% | 14% |
| Jan 21 | 37°F | 19°F | 61°F 1950 | -12°F 1937 | 23% | 14% |
| Jan 22 | 37°F | 19°F | 59°F 1970 | -15°F 1937 | 23% | 14% |
| Jan 23 | 37°F | 20°F | 61°F 1970 | -10°F 1937 | 23% | 14% |
| Jan 24 | 38°F | 20°F | 63°F 1959 | -8°F 1937 | 23% | 14% |
| Jan 25 | 38°F | 20°F | 61°F 1953 | -9°F 1949 | 23% | 14% |
| Jan 26 | 38°F | 20°F | 59°F 1982 | -10°F 1949 | 23% | 14% |
| Jan 27 | 38°F | 20°F | 59°F 2003 | -3°F 1949 | 23% | 14% |
| Jan 28 | 38°F | 20°F | 54°F 1987 | 1°F 1898 | 23% | 14% |
| Jan 29 | 38°F | 20°F | 56°F 1998 | -1°F 1902 | 24% | 14% |
| Jan 30 | 38°F | 20°F | 61°F 2018 | -2°F 1979 | 24% | 14% |
| Jan 31 | 39°F | 20°F | 67°F 2003 | -2°F 2023 | 24% | 14% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- January 1
- sunrise 7:54 AM, sunset 5:14 PM
- January 31
- sunrise 7:40 AM, sunset 5:47 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00423348 (Grantsville 2W), public domain. Records: NOAA GHCN-Daily, station USC00428771, 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.