Weather on September 5
Pomona, CA
55 Years of Data
Avg High
92°F
Avg Low
63°F
Warmest
2020
94°F avg
Coldest
1985
64°F avg
About This Date
September 5th in Pomona, CA typically brings hot fall weather, with average highs around 92°F and lows near 63°F — a 29°F daily swing. Over 52 years of records, the warmest September 5th was in 2020 (94°F average), while the coldest was 1985 (64°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 6% of September 5th dates historically. The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
Planning for September 5th in Pomona, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 64° | 79° | — | — |
| 2024 | 109° | 76° | 92° | — | — |
| 2023 | 76° | 59° | 67° | — | — |
| 2022 | 102° | 76° | 89° | — | — |
| 2021 | 102° | 69° | 86° | — | — |
| 2020warmest | 113° | 75° | 94° | — | — |
| 2019 | 95° | 72° | 83° | — | — |
| 2018 | 83° | 59° | 71° | — | — |
| 2017 | 88° | 65° | 76° | — | — |
| 2016 | 77° | 56° | 66° | — | — |
| 2015 | 86° | 53° | 70° | — | — |
| 2014 | 93° | 59° | 76° | — | — |
| 2013 | 101° | 74° | 87° | — | — |
| 2012 | 86° | 71° | 79° | — | — |
| 2011 | 96° | 67° | 81° | 0.03" | — |
| 2010 | 93° | 61° | 77° | — | — |
| 2009 | 95° | 65° | 80° | — | — |
| 2008 | 95° | 65° | 80° | — | — |
| 2007 | 92° | 58° | 75° | — | — |
| 2006 | 100° | 74° | 87° | — | — |
| 2005 | 95° | 57° | 76° | — | — |
| 2004 | 102° | 61° | 81° | — | — |
| 2003 | 101° | 70° | 85° | — | — |
| 2002 | 99° | 66° | 82° | — | — |
| 2001 | — | 63° | — | — | — |
| 2000 | 85° | 57° | 71° | — | — |
| 1999 | 80° | 53° | 67° | — | — |
| 1998 | 81° | 66° | 73° | — | — |
| 1994 | 94° | 61° | 77° | — | — |
| 1993 | 87° | 57° | 72° | — | — |
| 1992 | 83° | 52° | 67° | — | — |
| 1991 | 84° | 64° | 74° | — | — |
| 1990 | 92° | 62° | 77° | — | — |
| 1989 | 99° | 57° | 78° | — | — |
| 1988 | 108° | 77° | 92° | — | — |
| 1987 | 85° | 53° | 69° | — | — |
| 1986 | 94° | 56° | 75° | — | — |
| 1985coldest | 70° | 59° | 64° | 0.38" | — |
| 1984 | 108° | 72° | 90° | — | — |
| 1983 | 89° | 62° | 76° | — | — |
| 1982 | 101° | 63° | 82° | — | — |
| 1981 | 84° | 65° | 74° | — | — |
| 1980 | 87° | 57° | 72° | — | — |
| 1979 | 92° | 56° | 74° | — | — |
| 1978 | 93° | 68° | 81° | — | — |
| 1977 | 96° | 58° | 77° | — | — |
| 1976 | 94° | 62° | 78° | — | — |
| 1975 | 96° | 59° | 78° | — | — |
| 1974 | 96° | 63° | 79° | — | — |
| 1973 | 72° | 59° | 65° | — | — |
| 1972 | 95° | 65° | 80° | 0.05" | — |
| 1971 | 89° | 58° | 73° | — | — |
52 years of data from POMONA/FAIRPLEX