Weather on March 15
Pomona, CA
55 Years of Data
Avg High
70°F
Avg Low
45°F
Warmest
2015
76°F avg
Coldest
1999
41°F avg
About This Date
March 15th in Pomona, CA typically brings pleasant spring weather, with average highs around 70°F and lows near 45°F — a 25°F daily swing. Over 53 years of records, the warmest March 15th was in 2015 (76°F average), while the coldest was 1999 (41°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 2% of March 15th dates historically. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for March 15th in Pomona, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 78° | 52° | 65° | — | — |
| 2025 | 62° | 38° | 50° | — | — |
| 2024 | 64° | 46° | 55° | — | — |
| 2023 | 58° | 48° | 53° | — | — |
| 2022 | 77° | 50° | 64° | — | — |
| 2021 | 50° | 36° | 43° | — | — |
| 2020 | 58° | 47° | 52° | — | — |
| 2019 | 71° | 43° | 57° | — | — |
| 2018 | 62° | 43° | 52° | — | — |
| 2017 | 85° | 60° | 72° | — | — |
| 2016 | 80° | 47° | 63° | — | — |
| 2015warmest | 90° | 62° | 76° | — | — |
| 2014 | 86° | 48° | 67° | — | — |
| 2013 | 83° | 54° | 68° | — | — |
| 2012 | 72° | 50° | 61° | — | — |
| 2011 | 81° | 50° | 65° | — | — |
| 2010 | 79° | 46° | 62° | — | — |
| 2009 | 84° | 39° | 62° | — | — |
| 2008 | 60° | 44° | 52° | — | — |
| 2007 | 81° | 47° | 64° | — | — |
| 2006 | 65° | 44° | 54° | — | — |
| 2005 | 75° | 42° | 59° | — | — |
| 2004 | 80° | 53° | 67° | — | — |
| 2003 | 54° | 51° | 52° | — | — |
| 2002 | 61° | 37° | 49° | — | — |
| 2001 | 67° | 51° | 59° | — | — |
| 2000 | 77° | 50° | 64° | — | — |
| 1999coldest | 48° | 34° | 41° | — | — |
| 1995 | 79° | 50° | 64° | — | — |
| 1994 | 85° | 52° | 68° | — | — |
| 1993 | 73° | 51° | 62° | — | — |
| 1992 | 68° | 40° | 54° | — | — |
| 1991 | 60° | 34° | 47° | — | — |
| 1990 | 76° | 40° | 58° | — | — |
| 1989 | 73° | 44° | 59° | — | — |
| 1988 | 63° | 34° | 48° | — | — |
| 1987 | 60° | 39° | 50° | 0.13" | — |
| 1986 | 61° | 43° | 52° | — | — |
| 1985 | 59° | 46° | 53° | — | — |
| 1984 | 66° | 48° | 57° | — | — |
| 1983 | 72° | 41° | 56° | — | — |
| 1982 | 62° | 48° | 55° | — | — |
| 1981 | 76° | 42° | 59° | — | — |
| 1980 | 70° | 43° | 56° | — | — |
| 1979 | 64° | 46° | 55° | — | — |
| 1978 | 72° | 47° | 59° | — | — |
| 1977 | 64° | 37° | 51° | — | — |
| 1976 | 74° | 44° | 59° | — | — |
| 1975 | 60° | 38° | 49° | — | — |
| 1974 | 78° | 49° | 63° | — | — |
| 1973 | 65° | 38° | 51° | — | — |
| 1972 | 71° | 50° | 61° | — | — |
| 1971 | 65° | 41° | 53° | — | — |
53 years of data from POMONA/FAIRPLEX