Star Weather in January
Average highs run from 38°F on January 1 to 42°F on January 31, and lows from 22°F to 24°F. Normal precipitation for the month is 1.37 in over about 10 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
- 40°F
- Average low
- 23°F
- Precipitation
- 1.37 in
- Snowfall
- 3.4 in
- Record high
- 60°FJan 10, 1990
- Record low
- -20°FJan 31, 1979
- Chance of a freeze
- 100%
- Daylight
- 9 h 00 min to 9 h 53 min
- Cloud cover
- 69%
- Humidity
- 81%
- Dew point
- 24°F
- Wind
- 7.2 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 | 38°F | 22°F | 59°F 1997 | -17°F 1979 | 33% | 12% |
| Jan 2 | 38°F | 22°F | 55°F 2009 | -12°F 1979 | 33% | 12% |
| Jan 3 | 38°F | 22°F | 53°F 2009 | -3°F 1991 | 33% | 12% |
| Jan 4 | 38°F | 22°F | 53°F 2003 | 0°F 1991 | 33% | 12% |
| Jan 5 | 38°F | 22°F | 51°F 2008 | -4°F 1991 | 33% | 12% |
| Jan 6 | 38°F | 22°F | 52°F 1978 | -6°F 1977 | 33% | 12% |
| Jan 7 | 38°F | 22°F | 51°F 1978 | -15°F 1979 | 33% | 12% |
| Jan 8 | 38°F | 22°F | 57°F 1990 | -10°F 1979 | 32% | 12% |
| Jan 9 | 38°F | 22°F | 52°F 2007 | -7°F 1977 | 32% | 12% |
| Jan 10 | 39°F | 23°F | 60°F 1990 | -9°F 1977 | 32% | 11% |
| Jan 11 | 39°F | 23°F | 59°F 1995 | -4°F 1977 | 32% | 11% |
| Jan 12 | 39°F | 23°F | 51°F 2014 | -1°F 1993 | 32% | 11% |
| Jan 13 | 39°F | 23°F | 55°F 1980 | -1°F 2013 | 32% | 11% |
| Jan 14 | 39°F | 23°F | 54°F 1990 | 2°F 2013 | 31% | 11% |
| Jan 15 | 39°F | 23°F | 55°F 2000 | 3°F 2013 | 31% | 10% |
| Jan 16 | 39°F | 23°F | 56°F 1996 | 2°F 2013 | 31% | 10% |
| Jan 17 | 39°F | 23°F | 56°F 2000 | -1°F 1984 | 31% | 10% |
| Jan 18 | 40°F | 23°F | 56°F 2011 | -10°F 1984 | 31% | 10% |
| Jan 19 | 40°F | 23°F | 60°F 1998 | -10°F 1984 | 30% | 10% |
| Jan 20 | 40°F | 23°F | 53°F 2010 | -8°F 1984 | 30% | 10% |
| Jan 21 | 40°F | 23°F | 50°F 1999 | -7°F 1984 | 30% | 10% |
| Jan 22 | 40°F | 24°F | 52°F 1978 | -4°F 2013 | 30% | 9% |
| Jan 23 | 40°F | 24°F | 53°F 1990 | -2°F 2013 | 29% | 9% |
| Jan 24 | 41°F | 24°F | 53°F 1998 | -4°F 1989 | 29% | 9% |
| Jan 25 | 41°F | 24°F | 52°F 1998 | -2°F 1989 | 29% | 9% |
| Jan 26 | 41°F | 24°F | 57°F 1992 | -9°F 1979 | 29% | 9% |
| Jan 27 | 41°F | 24°F | 55°F 1998 | -7°F 1979 | 28% | 9% |
| Jan 28 | 42°F | 24°F | 54°F 1983 | -5°F 1980 | 28% | 8% |
| Jan 29 | 42°F | 24°F | 55°F 1992 | -3°F 1980 | 28% | 8% |
| Jan 30 | 42°F | 24°F | 56°F 1992 | -15°F 1979 | 28% | 8% |
| Jan 31 | 42°F | 24°F | 52°F 1998 | -20°F 1979 | 28% | 8% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- January 1
- sunrise 8:20 AM, sunset 5:20 PM
- January 31
- sunrise 8:03 AM, sunset 5:56 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00106305 (Nampa Sugar Factory), public domain. Records: NOAA GHCN-Daily, station USC00106305, 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.