Weather on May 9
Pomona, CA
55 Years of Data
About This Date
May 9th in Pomona, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 52°F. Over 53 years of records, the warmest May 9th was in 2025 (78°F average), while the coldest was 1977 (53°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 9th dates historically, with the wettest May 9th recording 1.85" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 9th in Pomona, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 80° | 53° | 67° | — | — |
| 2025warmest | 95° | 60° | 78° | — | — |
| 2024 | 77° | 48° | 63° | — | — |
| 2023 | 66° | 48° | 57° | — | — |
| 2022 | 66° | 45° | 55° | — | — |
| 2021 | 73° | 50° | 62° | — | — |
| 2020 | 82° | 56° | 69° | — | — |
| 2019 | 60° | 53° | 57° | — | — |
| 2018 | 83° | 55° | 69° | — | — |
| 2017 | 68° | 48° | 58° | — | — |
| 2016 | 68° | 49° | 58° | — | — |
| 2015 | 62° | 51° | 57° | — | — |
| 2014 | 75° | 48° | 62° | — | — |
| 2013 | 73° | 45° | 59° | — | — |
| 2012 | 88° | 57° | 72° | — | — |
| 2011 | 64° | 52° | 58° | — | — |
| 2010 | 66° | 48° | 57° | — | — |
| 2009 | 94° | 57° | 75° | — | — |
| 2008 | 67° | 51° | 59° | — | — |
| 2007 | 94° | 59° | 76° | — | — |
| 2006 | 71° | 53° | 62° | — | — |
| 2005 | 65° | 52° | 58° | — | — |
| 2004 | 86° | 54° | 70° | — | — |
| 2003 | 71° | 48° | 60° | — | — |
| 2002 | 72° | 54° | 63° | — | — |
| 2001 | 87° | 58° | 72° | — | — |
| 2000 | 79° | 52° | 65° | — | — |
| 1999 | 58° | 49° | 53° | — | — |
| 1995 | 74° | 44° | 59° | — | — |
| 1994 | 75° | 67° | 71° | — | — |
| 1993 | 93° | 55° | 74° | — | — |
| 1992 | 68° | 54° | 61° | — | — |
| 1991 | 74° | 56° | 65° | — | — |
| 1990 | 82° | 51° | 67° | — | — |
| 1989 | 78° | 53° | 66° | — | — |
| 1988 | 81° | 43° | 62° | — | — |
| 1987 | 85° | 59° | 72° | — | — |
| 1986 | 82° | 45° | 63° | — | — |
| 1985 | 66° | 52° | 59° | — | — |
| 1984 | 93° | 55° | 74° | — | — |
| 1983 | 73° | 50° | 62° | — | — |
| 1982 | 63° | 52° | 57° | — | — |
| 1981 | 92° | 52° | 72° | — | — |
| 1980 | 68° | 55° | 62° | — | — |
| 1979 | 68° | 42° | 55° | — | — |
| 1978 | 89° | 55° | 72° | — | — |
| 1977coldest | 57° | 48° | 53° | 1.85" | — |
| 1976 | 76° | 51° | 63° | — | — |
| 1975 | 74° | 48° | 61° | — | — |
| 1974 | 70° | 55° | 62° | — | — |
| 1973 | 79° | 48° | 63° | — | — |
| 1972 | 71° | 45° | 58° | — | — |
| 1971 | 64° | 46° | 55° | — | — |
Pomona, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Pomona, CA Monthly Precipitation
Average rainfall per month, in inches.
Pomona, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Pomona, CA
Pomona, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.