Pomona Weather in January
Average highs run from 41°F on January 1 to 42°F on January 31, and lows from 23°F to 21°F. Normal precipitation for the month is 1.00 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
- 41°F
- Average low
- 22°F
- Precipitation
- 1.00 in
- Snowfall
- 3.2 in
- Record high
- 76°FJan 24, 1950
- Record low
- -20°FJan 4, 1947
- Chance of a freeze
- 100%
- Daylight
- 9 h 32 min to 10 h 15 min
- Cloud cover
- 60%
- Humidity
- 79%
- Dew point
- 23°F
- Wind
- 11.4 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 | 41°F | 23°F | 69°F 2006 | -9°F 1928 | 15% | 8% |
| Jan 2 | 41°F | 23°F | 68°F 1950 | -12°F 1979 | 15% | 8% |
| Jan 3 | 41°F | 23°F | 70°F 1997 | -15°F 1919 | 15% | 8% |
| Jan 4 | 41°F | 23°F | 67°F 1997 | -20°F 1947 | 15% | 8% |
| Jan 5 | 41°F | 22°F | 69°F 1956 | -14°F 1924 | 15% | 8% |
| Jan 6 | 41°F | 22°F | 67°F 2012 | -16°F 1910 | 15% | 8% |
| Jan 7 | 40°F | 22°F | 73°F 1907 | -17°F 1912 | 15% | 8% |
| Jan 8 | 40°F | 22°F | 74°F 2003 | -9°F 1979 | 15% | 8% |
| Jan 9 | 40°F | 22°F | 68°F 1902 | -6°F 1973 | 15% | 8% |
| Jan 10 | 40°F | 22°F | 69°F 1990 | -15°F 1982 | 15% | 8% |
| Jan 11 | 40°F | 22°F | 67°F 1911 | -14°F 1918 | 15% | 8% |
| Jan 12 | 40°F | 22°F | 71°F 1960 | -19°F 1912 | 15% | 8% |
| Jan 13 | 40°F | 22°F | 71°F 1996 | -15°F 1916 | 15% | 8% |
| Jan 14 | 40°F | 21°F | 69°F 1952 | -11°F 1905 | 15% | 8% |
| Jan 15 | 40°F | 21°F | 66°F 1990 | -16°F 1905 | 15% | 8% |
| Jan 16 | 40°F | 21°F | 70°F 1952 | -11°F 2024 | 15% | 8% |
| Jan 17 | 40°F | 21°F | 66°F 1996 | -11°F 2024 | 15% | 8% |
| Jan 18 | 41°F | 21°F | 73°F 1951 | -19°F 1930 | 15% | 8% |
| Jan 19 | 41°F | 21°F | 68°F 1914 | -16°F 1943 | 15% | 8% |
| Jan 20 | 41°F | 21°F | 68°F 1986 | -15°F 1985 | 15% | 8% |
| Jan 21 | 41°F | 21°F | 73°F 1957 | -7°F 1935 | 15% | 8% |
| Jan 22 | 41°F | 21°F | 71°F 1964 | -19°F 1930 | 15% | 8% |
| Jan 23 | 41°F | 21°F | 72°F 1967 | -9°F 1930 | 15% | 8% |
| Jan 24 | 41°F | 21°F | 76°F 1950 | -6°F 1963 | 15% | 8% |
| Jan 25 | 41°F | 21°F | 68°F 1981 | -12°F 1905 | 15% | 8% |
| Jan 26 | 41°F | 21°F | 70°F 1911 | -14°F 1904 | 15% | 8% |
| Jan 27 | 42°F | 21°F | 68°F 1934 | -15°F 1902 | 15% | 8% |
| Jan 28 | 42°F | 21°F | 65°F 1914 | -13°F 1997 | 15% | 8% |
| Jan 29 | 42°F | 21°F | 74°F 2013 | -16°F 1918 | 15% | 8% |
| Jan 30 | 42°F | 21°F | 68°F 2016 | -13°F 1949 | 15% | 8% |
| Jan 31 | 42°F | 21°F | 71°F 1989 | -12°F 1979 | 15% | 8% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:40 AM, sunset 5:12 PM
- January 31
- sunrise 7:28 AM, sunset 5:43 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00146498 (Pomona Lake), public domain. Records: NOAA GHCN-Daily, station USC00146128, 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.