January weather in Monrovia, CA
The average temperature in Monrovia in January is °F (°F–°F). Average precipitation: 5.20 inches.
January is a winter month in Monrovia, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 9h 57m.
Avg High
°F
Avg Low
°F
Precipitation
5.20 in
Daylight
9h 57m
January records in Monrovia
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 84.0°F (2012) | 37.9°F (2015) | 6.20 in (1934) |
| January 2 | 99.0°F (1953) | 37.0°F (2015) | 1.03 in (1922) |
| January 3 | 88.0°F (2012) | 39.9°F (2015) | 1.86 in (1977) |
| January 4 | 87.1°F (2012) | 41.0°F (2015) | 1.90 in (1974) |
| January 5 | 91.0°F (2012) | 45.0°F (1927) | 6.10 in (2008) |
| January 6 | 88.0°F (2012) | 37.9°F (1921) | 2.84 in (1959) |
| January 7 | 86.0°F (2015) | 36.0°F (1930) | 3.63 in (1974) |
| January 8 | 86.0°F (1928) | 35.1°F (1930) | 3.38 in (1993) |
| January 9 | 88.0°F (1928) | 39.0°F (1925) | 4.95 in (2005) |
| January 10 | 86.0°F (1928) | 35.1°F (1930) | 5.11 in (2005) |
| January 11 | 84.0°F (1928) | 34.0°F (1921) | 4.54 in (1995) |
| January 12 | 90.0°F (1928) | 34.0°F (2013) | 1.32 in (2017) |
| January 13 | 88.0°F (1928) | 33.1°F (2013) | 2.90 in (1957) |
| January 14 | 82.9°F (2014) | 33.1°F (2013) | 2.60 in (1993) |
| January 15 | 87.1°F (2014) | 32.0°F (2013) | 2.53 in (1978) |
| January 16 | 88.0°F (2014) | 34.0°F (1928) | 4.54 in (1952) |
| January 17 | 86.0°F (1920) | 39.9°F (1928) | 3.81 in (2019) |
| January 18 | 89.1°F (2014) | 36.0°F (1928) | 2.89 in (1921) |
| January 19 | 88.0°F (2014) | 42.1°F (1921) | 3.65 in (1933) |
| January 20 | 84.9°F (2014) | 37.0°F (1921) | 3.75 in (1962) |
| January 21 | 87.1°F (2014) | 36.0°F (1921) | 2.22 in (1964) |
| January 22 | 84.9°F (2013) | 37.0°F (1921) | 6.49 in (1943) |
| January 23 | 84.9°F (2013) | 39.0°F (1921) | 6.17 in (1943) |
| January 24 | 79.0°F (2013) | 37.9°F (1921) | 2.74 in (1967) |
| January 25 | 86.0°F (2015) | 39.9°F (1929) | 7.85 in (1969) |
| January 26 | 82.9°F (2012) | 39.0°F (1929) | 8.13 in (1956) |
| January 27 | 86.0°F (2012) | 44.1°F (1926) | 1.55 in (2008) |
| January 28 | 82.9°F (1928) | 41.0°F (2013) | 2.03 in (2008) |
| January 29 | 81.0°F (2012) | 39.9°F (1921) | 1.74 in (2021) |
| January 30 | 84.0°F (2012) | 41.0°F (1925) | 1.87 in (1986) |
| January 31 | 80.1°F (1930) | 42.1°F (1921) | 3.19 in (1926) |