January weather in Pomona, CA
The average temperature in Pomona in January is 55.5°F (43.1°F–67.9°F). Average precipitation: 2.91 inches.
January is a winter month in Pomona, and is cooler than the annual average of 65.1°F. Daily temperatures swing about 24.8°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 9h 58m. For travel, January is a comfortable month to visit.
Avg High
67.9°F
Avg Low
43.1°F
Precipitation
2.91 in
Daylight
9h 58m
January records in Pomona
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 86.0°F (1964) | 24.1°F (1919) | 8.50 in (1934) |
| January 2 | 82.0°F (1913) | 23.0°F (1901) | 1.90 in (1922) |
| January 3 | 88.0°F (1994) | 21.9°F (1949) | 1.18 in (1977) |
| January 4 | 89.1°F (1993) | 23.0°F (1949) | 3.00 in (1987) |
| January 5 | 84.9°F (1969) | 21.9°F (1949) | 2.30 in (1974) |
| January 6 | 84.0°F (1969) | 25.0°F (1913) | 2.67 in (1959) |
| January 7 | 88.0°F (1962) | 21.0°F (1913) | 3.55 in (1993) |
| January 8 | 87.1°F (1923) | 23.0°F (1913) | 3.22 in (1940) |
| January 9 | 86.0°F (1923) | 25.0°F (1937) | 2.00 in (2005) |
| January 10 | 86.0°F (1986) | 26.1°F (1937) | 2.83 in (1995) |
| January 11 | 88.0°F (1986) | 25.0°F (1937) | 2.25 in (2001) |
| January 12 | 88.0°F (1986) | 25.0°F (1921) | 1.05 in (1960) |
| January 13 | 84.9°F (1986) | 21.0°F (1963) | 1.82 in (1957) |
| January 14 | 84.9°F (1983) | 26.1°F (1963) | 1.47 in (1895) |
| January 15 | 89.1°F (1975) | 24.1°F (1963) | 2.02 in (1979) |
| January 16 | 84.9°F (1961) | 25.0°F (1987) | 2.86 in (1952) |
| January 17 | 88.0°F (1976) | 25.0°F (1987) | 3.50 in (1916) |
| January 18 | 88.0°F (1976) | 27.0°F (1928) | 4.85 in (1916) |
| January 19 | 88.0°F (1971) | 25.0°F (1947) | 2.97 in (1954) |
| January 20 | 87.1°F (1971) | 23.0°F (1922) | 2.02 in (1969) |
| January 21 | 80.1°F (1968) | 23.0°F (1922) | 1.29 in (1969) |
| January 22 | 78.1°F (1919) | 23.0°F (1937) | 3.80 in (1943) |
| January 23 | 82.9°F (1946) | 23.0°F (1937) | 4.90 in (1943) |
| January 24 | 84.0°F (1951) | 25.0°F (1937) | 2.15 in (1969) |
| January 25 | 84.0°F (1986) | 26.1°F (1922) | 4.32 in (1969) |
| January 26 | 90.0°F (1987) | 25.0°F (1937) | 6.38 in (1956) |
| January 27 | 88.0°F (1986) | 26.1°F (1948) | 1.36 in (1914) |
| January 28 | 84.0°F (1988) | 26.1°F (1948) | 2.22 in (1916) |
| January 29 | 86.0°F (2003) | 26.1°F (1948) | 3.64 in (1980) |
| January 30 | 91.0°F (2003) | 25.0°F (1949) | 1.75 in (1915) |
| January 31 | 87.1°F (1954) | 26.1°F (1946) | 2.50 in (1979) |