Flagstaff Weather in January
Average highs run from 42°F on January 1 to 44°F on January 31, and lows from 17°F to 18°F. Normal precipitation for the month is 2.05 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
- 43°F
- Average low
- 18°F
- Precipitation
- 2.05 in
- Snowfall
- 20.9 in
- Record high
- 66°FJan 30, 1971
- Record low
- -30°FJan 22, 1937
- Chance of a freeze
- 100%
- Daylight
- 9 h 51 min to 10 h 28 min
- Cloud cover
- 48%
- Humidity
- 64%
- Dew point
- 20°F
- Wind
- 8.3 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 | 42°F | 17°F | 61°F 1981 | -19°F 2011 | 23% | 20% |
| Jan 2 | 42°F | 17°F | 63°F 2025 | -13°F 1937 | 23% | 20% |
| Jan 3 | 42°F | 17°F | 60°F 1994 | -19°F 1937 | 23% | 20% |
| Jan 4 | 42°F | 17°F | 64°F 1927 | -22°F 1971 | 23% | 20% |
| Jan 5 | 43°F | 17°F | 59°F 1927 | -20°F 1971 | 23% | 20% |
| Jan 6 | 43°F | 17°F | 65°F 1898 | -9°F 1894 | 23% | 20% |
| Jan 7 | 43°F | 17°F | 64°F 1898 | -19°F 1894 | 23% | 20% |
| Jan 8 | 43°F | 17°F | 64°F 1898 | -12°F 1989 | 23% | 20% |
| Jan 9 | 43°F | 17°F | 65°F 1898 | -9°F 1937 | 22% | 20% |
| Jan 10 | 43°F | 17°F | 65°F 1990 | -15°F 1937 | 22% | 20% |
| Jan 11 | 43°F | 17°F | 63°F 1990 | -17°F 1963 | 22% | 20% |
| Jan 12 | 43°F | 17°F | 59°F 2002 | -20°F 1963 | 22% | 20% |
| Jan 13 | 43°F | 18°F | 59°F 1938 | -7°F 2013 | 22% | 20% |
| Jan 14 | 43°F | 18°F | 65°F 1943 | -15°F 2007 | 22% | 20% |
| Jan 15 | 43°F | 18°F | 65°F 1943 | -12°F 1937 | 22% | 20% |
| Jan 16 | 44°F | 18°F | 60°F 1971 | -6°F 1987 | 22% | 20% |
| Jan 17 | 44°F | 18°F | 62°F 1971 | -13°F 1987 | 22% | 20% |
| Jan 18 | 44°F | 18°F | 64°F 1971 | -8°F 1995 | 22% | 20% |
| Jan 19 | 44°F | 18°F | 62°F 1986 | -13°F 1943 | 22% | 20% |
| Jan 20 | 44°F | 18°F | 61°F 1950 | -10°F 1935 | 22% | 20% |
| Jan 21 | 44°F | 18°F | 58°F 1950 | -24°F 1937 | 23% | 20% |
| Jan 22 | 44°F | 18°F | 62°F 1970 | -30°F 1937 | 23% | 20% |
| Jan 23 | 44°F | 18°F | 61°F 1970 | -15°F 1937 | 23% | 20% |
| Jan 24 | 44°F | 18°F | 61°F 1982 | -15°F 1964 | 23% | 20% |
| Jan 25 | 44°F | 18°F | 61°F 1975 | -22°F 1898 | 23% | 20% |
| Jan 26 | 44°F | 18°F | 60°F 1987 | -15°F 1937 | 23% | 20% |
| Jan 27 | 44°F | 18°F | 61°F 2003 | -13°F 1979 | 23% | 20% |
| Jan 28 | 44°F | 18°F | 63°F 1986 | -10°F 1932 | 23% | 20% |
| Jan 29 | 44°F | 18°F | 60°F 1986 | -12°F 1932 | 23% | 20% |
| Jan 30 | 44°F | 18°F | 66°F 1971 | -19°F 1979 | 23% | 20% |
| Jan 31 | 44°F | 18°F | 63°F 1971 | -16°F 1985 | 24% | 20% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- January 1
- sunrise 7:35 AM, sunset 5:26 PM
- January 31
- sunrise 7:26 AM, sunset 5:54 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00003103 (Flagstaff Pulliam AP), public domain. Records: NOAA GHCN-Daily, station USW00003103, 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.