Sweetwater County Weather in January
Average highs run from 29°F on January 1 to 30°F on January 31, and lows from 13°F to 14°F. Normal precipitation for the month is 0.38 in over about 5 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
- 30°F
- Average low
- 14°F
- Precipitation
- 0.38 in
- Snowfall
- 8.2 in
- Record high
- 55°FJan 7, 1969
- Record low
- -37°FJan 12, 1963
- Chance of a freeze
- 100%
- Daylight
- 9 h 13 min to 10 h 02 min
- Cloud cover
- 58%
- Humidity
- 80%
- Dew point
- 14°F
- Wind
- 13.2 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 | 29°F | 13°F | 47°F 1981 | -23°F 1979 | 16% | 21% |
| Jan 2 | 29°F | 13°F | 49°F 1981 | -26°F 1974 | 16% | 21% |
| Jan 3 | 29°F | 13°F | 47°F 2012 | -26°F 1974 | 16% | 21% |
| Jan 4 | 29°F | 13°F | 48°F 2026 | -24°F 1974 | 16% | 21% |
| Jan 5 | 29°F | 13°F | 49°F 2012 | -20°F 1970 | 16% | 21% |
| Jan 6 | 29°F | 13°F | 48°F 1948 | -25°F 1979 | 16% | 21% |
| Jan 7 | 29°F | 13°F | 55°F 1969 | -26°F 1979 | 17% | 22% |
| Jan 8 | 29°F | 14°F | 48°F 2009 | -24°F 1979 | 17% | 22% |
| Jan 9 | 29°F | 14°F | 50°F 1990 | -19°F 1962 | 17% | 22% |
| Jan 10 | 29°F | 14°F | 54°F 1990 | -25°F 1962 | 17% | 22% |
| Jan 11 | 29°F | 14°F | 49°F 1999 | -30°F 1963 | 17% | 22% |
| Jan 12 | 29°F | 14°F | 48°F 1969 | -37°F 1963 | 17% | 22% |
| Jan 13 | 29°F | 14°F | 49°F 1969 | -14°F 1963 | 17% | 22% |
| Jan 14 | 30°F | 14°F | 51°F 2026 | -18°F 2013 | 17% | 22% |
| Jan 15 | 30°F | 14°F | 48°F 1996 | -14°F 2024 | 17% | 22% |
| Jan 16 | 30°F | 14°F | 47°F 1974 | -14°F 1957 | 17% | 22% |
| Jan 17 | 30°F | 14°F | 48°F 1971 | -18°F 1984 | 17% | 22% |
| Jan 18 | 30°F | 14°F | 50°F 2018 | -21°F 1963 | 17% | 22% |
| Jan 19 | 30°F | 14°F | 52°F 1971 | -26°F 1963 | 17% | 22% |
| Jan 20 | 30°F | 14°F | 51°F 2005 | -12°F 1962 | 17% | 22% |
| Jan 21 | 30°F | 14°F | 46°F 1981 | -19°F 1962 | 17% | 22% |
| Jan 22 | 30°F | 14°F | 47°F 1981 | -23°F 1962 | 17% | 22% |
| Jan 23 | 30°F | 14°F | 53°F 1970 | -21°F 1962 | 17% | 22% |
| Jan 24 | 30°F | 14°F | 51°F 1959 | -19°F 1949 | 17% | 22% |
| Jan 25 | 30°F | 14°F | 47°F 2015 | -20°F 1949 | 17% | 22% |
| Jan 26 | 30°F | 14°F | 53°F 2015 | -23°F 1949 | 18% | 22% |
| Jan 27 | 30°F | 14°F | 52°F 2003 | -19°F 1961 | 18% | 22% |
| Jan 28 | 30°F | 14°F | 50°F 1967 | -16°F 1980 | 18% | 22% |
| Jan 29 | 30°F | 14°F | 50°F 1976 | -18°F 1949 | 18% | 22% |
| Jan 30 | 30°F | 14°F | 49°F 2018 | -19°F 2023 | 18% | 21% |
| Jan 31 | 30°F | 14°F | 53°F 1971 | -22°F 1985 | 18% | 21% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- January 1
- sunrise 7:43 AM, sunset 4:56 PM
- January 31
- sunrise 7:28 AM, sunset 5:30 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024027 (Rock Springs AP), public domain. Records: NOAA GHCN-Daily, station USW00024027, 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.