Weather on July 20
Pomona, CA
55 Years of Data
About This Date
July 20th in Pomona, CA typically brings hot summer weather, with average highs around 91°F and lows near 60°F — a 31°F daily swing. Over 51 years of records, the warmest July 20th was in 2003 (87°F average), while the coldest was 1999 (19°F) — a 68°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for July 20th in Pomona, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 61° | 72° | — | — |
| 2024 | 99° | 70° | 84° | — | — |
| 2023 | 97° | 69° | 83° | — | — |
| 2022 | 93° | 67° | 80° | — | — |
| 2021 | 93° | 67° | 80° | — | — |
| 2020 | 86° | 60° | 73° | — | — |
| 2019 | 84° | 54° | 69° | — | — |
| 2018 | 86° | 66° | 76° | — | — |
| 2017 | 92° | 62° | 77° | — | — |
| 2016 | 99° | 66° | 82° | — | — |
| 2015 | 85° | 66° | 75° | — | — |
| 2014 | 83° | 58° | 70° | — | — |
| 2013 | 87° | 58° | 72° | — | — |
| 2012 | 95° | 66° | 81° | — | — |
| 2011 | 91° | 58° | 74° | — | — |
| 2010 | 87° | 62° | 75° | — | — |
| 2009 | 105° | 70° | 87° | — | — |
| 2008 | 83° | 59° | 71° | — | — |
| 2007 | 91° | 62° | 77° | — | — |
| 2006 | 96° | 66° | 81° | — | — |
| 2005 | 101° | 72° | 86° | — | — |
| 2004 | 95° | 66° | 81° | — | — |
| 2003warmest | 100° | 74° | 87° | — | — |
| 2002 | 95° | 62° | 79° | — | — |
| 2001 | 85° | 58° | 71° | — | — |
| 2000 | 98° | 64° | 81° | — | — |
| 1999coldest | 69° | -32° | 19° | — | — |
| 1998 | 92° | 64° | 78° | — | — |
| 1993 | 84° | 55° | 70° | — | — |
| 1992 | 89° | 58° | 73° | — | — |
| 1991 | 75° | 65° | 70° | — | — |
| 1990 | 94° | 61° | 77° | — | — |
| 1989 | 95° | 59° | 77° | — | — |
| 1988 | 95° | 62° | 79° | — | — |
| 1987 | 81° | 50° | 65° | — | — |
| 1986 | 97° | 50° | 73° | — | — |
| 1985 | 90° | 65° | 77° | — | — |
| 1984 | 89° | 68° | 79° | — | — |
| 1983 | 98° | 55° | 77° | — | — |
| 1982 | 99° | 59° | 79° | — | — |
| 1981 | 98° | 60° | 79° | — | — |
| 1980 | 91° | 57° | 74° | — | — |
| 1979 | 96° | 67° | 81° | — | — |
| 1978 | 90° | 56° | 73° | — | — |
| 1977 | 84° | 60° | 72° | — | — |
| 1976 | 89° | 59° | 74° | — | — |
| 1975 | 85° | 58° | 71° | — | — |
| 1974 | 97° | 66° | 81° | — | — |
| 1973 | 83° | 52° | 67° | — | — |
| 1972 | 79° | 63° | 71° | — | — |
| 1971 | 89° | 60° | 75° | — | — |
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.