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Pomona, CA Weather on May 26
May 26th in Pomona, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 53°F. Over 53 years of records, the warmest May 26th was in 1974 (77°F average), while the coldest was 2019 (50°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 26th dates historically. The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
What to Expect on May 26
Planning for May 26th in Pomona, CA? Great weather for outdoor activities.
May 26 Weather Records for Pomona
- •The all-time record high for May 26th in Pomona, CA is 99°F, set in 1974.
- •The coldest May 26th on record dropped to 40°F in 1980.
- •Temperatures have reached 90°F or higher on May 26th in 2 of the last 53 years.
- •Last year (1971), May 26th was 6°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest May 26 ever in Pomona?
The warmest May 26 in Pomona, CA reached 99°F in 1974. That is 24°F above the long-term average high of 75°F.
What was the coldest May 26 ever in Pomona?
The coldest May 26 in Pomona, CA dropped to 40°F in 1980. That is 13°F below the long-term average low of 53°F.
What is the average temperature on May 26 in Pomona?
On May 26, Pomona averages a high of 75°F and a low of 53°F based on 53 years of NOAA weather observations from POMONA/FAIRPLEX.
How many years of weather data are available for May 26 in Pomona?
We have 53 years of weather records for May 26 in Pomona, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
May 26 Weather History in Pomona
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 76°F | 50°F | -- | -- |
| 2024 | 72°F | 50°F | -- | -- |
| 2023 | 61°F | 49°F | -- | -- |
| 2022 | 81°F | 52°F | -- | -- |
| 2021 | 80°F | 51°F | -- | -- |
| 2020 | 90°F | 61°F | -- | -- |
| 2019 | 54°F | 47°F | -- | -- |
| 2018 | 62°F | 50°F | -- | -- |
| 2017 | 68°F | 51°F | -- | -- |
| 2016 | 73°F | 46°F | -- | -- |
| 2015 | 73°F | 54°F | -- | -- |
| 2014 | 89°F | 55°F | -- | -- |
| 2013 | 74°F | 47°F | -- | -- |
| 2012 | 70°F | 49°F | 0" | -- |
| 2011 | 78°F | 50°F | 0" | -- |
| 2010 | 72°F | 45°F | -- | -- |
| 2009 | 79°F | 57°F | -- | -- |
| 2008 | 65°F | 47°F | 0" | -- |
| 2007 | 56°F | 81°F | 0" | -- |
| 2006 | 69°F | 59°F | 0" | -- |
| 2005 | 88°F | 57°F | 0" | -- |
| 2004 | 74°F | 56°F | 0" | -- |
| 2003 | 82°F | 53°F | 0" | -- |
| 2002 | 75°F | 53°F | 0" | -- |
| 2001 | 73°F | 59°F | 0" | -- |
| 2000 | 78°F | 55°F | -- | -- |
| 1999 | 80°F | 52°F | -- | -- |
| 1998 | 67°F | 50°F | 0.03" | -- |
| 1995 | 76°F | 55°F | 0" | -- |
| 1994 | 72°F | 58°F | 0" | -- |
| 1993 | 78°F | 57°F | 0" | -- |
| 1992 | 72°F | 53°F | 0" | -- |
| 1991 | 71°F | 53°F | 0" | -- |
| 1990 | 75°F | 49°F | 0" | -- |
| 1989 | 82°F | 50°F | 0" | -- |
| 1988 | 80°F | 48°F | 0" | -- |
| 1987 | 65°F | 49°F | 0" | -- |
| 1986 | 81°F | 51°F | 0" | -- |
| 1985 | 70°F | 55°F | 0" | -- |
| 1984 | 87°F | 53°F | 0" | -- |
| 1983 | 84°F | 61°F | 0" | -- |
| 1982 | 65°F | 59°F | 0" | -- |
| 1981 | 79°F | 61°F | 0" | -- |
| 1980 | 69°F | 40°F | 0" | -- |
| 1979 | 81°F | 57°F | 0" | -- |
| 1978 | 73°F | 45°F | 0" | -- |
| 1977 | 72°F | 46°F | -- | -- |
| 1976 | 73°F | 47°F | 0" | -- |
| 1975 | 77°F | 52°F | 0" | -- |
| 1974 | 99°F | 56°F | 0" | -- |
| 1973 | 65°F | 54°F | 0" | -- |
| 1972 | 68°F | 47°F | 0" | -- |
| 1971 | 81°F | 54°F | 0" | -- |
Based on 53 years of data from NOAA station: POMONA/FAIRPLEX
Monthly Climate Averages
Historical temperature and precipitation averages for Pomona, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.