Weather on May 3
Rancho Cucamonga, CA
55 Years of Data
Avg High
78°F
Avg Low
53°F
Warmest
2004
84°F avg
Coldest
1999
54°F avg
About This Date
May 3rd in Rancho Cucamonga, CA typically brings pleasant spring weather, with average highs around 78°F and lows near 53°F — a 25°F daily swing. Over 41 years of records, the warmest May 3rd was in 2004 (84°F average), while the coldest was 1999 (54°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 3rd dates historically, with the wettest May 3rd recording 1.07" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for May 3rd in Rancho Cucamonga, CA? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 56° | 60° | — | — |
| 2024 | 72° | 56° | 64° | — | — |
| 2023 | 66° | 48° | 57° | — | — |
| 2022 | 73° | 56° | 64° | — | — |
| 2021 | 86° | 54° | 70° | — | — |
| 2020 | 82° | 57° | 70° | — | — |
| 2019 | 83° | 55° | 69° | — | — |
| 2018 | 79° | 50° | 64° | — | — |
| 2017 | 93° | 59° | 76° | — | — |
| 2016 | 92° | 57° | 74° | — | — |
| 2015 | 78° | 55° | 67° | — | — |
| 2014 | 94° | 59° | 76° | — | — |
| 2013 | 96° | 56° | 76° | — | — |
| 2012 | 68° | 55° | 62° | — | — |
| 2011 | 93° | 55° | 74° | — | — |
| 2010 | 85° | 52° | 68° | — | — |
| 2009 | 79° | 56° | 67° | — | — |
| 2008 | 82° | 56° | 69° | — | — |
| 2007 | 73° | 53° | 63° | — | — |
| 2006 | 70° | 57° | 63° | — | — |
| 2005 | 77° | 54° | 65° | — | — |
| 2004warmest | 103° | 66° | 84° | — | — |
| 2003 | 64° | 50° | 57° | 1.07" | — |
| 2002 | 75° | 49° | 62° | — | — |
| 2001 | 81° | 50° | 65° | — | — |
| 2000 | 86° | 57° | 72° | — | — |
| 1999coldest | 57° | 51° | 54° | — | — |
| 1984 | 89° | 45° | 67° | — | — |
| 1983 | 77° | 45° | 61° | — | — |
| 1982 | 76° | 54° | 65° | — | — |
| 1981 | 71° | 54° | 62° | — | — |
| 1980 | 84° | 53° | 69° | — | — |
| 1979 | 73° | 52° | 62° | — | — |
| 1978 | 75° | 46° | 61° | — | — |
| 1977 | 71° | 42° | 57° | — | — |
| 1976 | 74° | 54° | 64° | — | — |
| 1975 | 75° | 46° | 61° | — | — |
| 1974 | 70° | 51° | 60° | — | — |
| 1973 | 86° | 51° | 69° | — | — |
| 1972 | 80° | 47° | 63° | — | — |
| 1971 | 65° | 47° | 56° | — | — |
41 years of data from ONTARIO INTL AP