Weather on May 14
Rancho Cucamonga, CA
55 Years of Data
Avg High
80°F
Avg Low
55°F
Warmest
2014
83°F avg
Coldest
1977
55°F avg
About This Date
May 14th in Rancho Cucamonga, CA typically brings warm spring weather, with average highs around 80°F and lows near 55°F — a 25°F daily swing. Over 41 years of records, the warmest May 14th was in 2014 (83°F average), while the coldest was 1977 (55°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 14th dates historically, with the wettest May 14th recording 1.14" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for May 14th in Rancho Cucamonga, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 53° | 65° | — | — |
| 2024 | 78° | 56° | 67° | — | — |
| 2023 | 87° | 58° | 72° | — | — |
| 2022 | 97° | 59° | 78° | — | — |
| 2021 | 81° | 57° | 69° | — | — |
| 2020 | 80° | 56° | 68° | — | — |
| 2019 | 86° | 59° | 73° | — | — |
| 2018 | 75° | 51° | 63° | — | — |
| 2017 | 75° | 51° | 63° | — | — |
| 2016 | 76° | 60° | 68° | — | — |
| 2015 | 64° | 51° | 58° | 1.14" | — |
| 2014warmest | 98° | 68° | 83° | — | — |
| 2013 | 90° | 61° | 75° | — | — |
| 2012 | 86° | 55° | 71° | — | — |
| 2011 | 70° | 56° | 63° | — | — |
| 2010 | 78° | 52° | 65° | — | — |
| 2009 | 86° | 57° | 72° | — | — |
| 2008 | 86° | 55° | 71° | — | — |
| 2007 | 80° | 51° | 66° | — | — |
| 2006 | 86° | 54° | 70° | — | — |
| 2005 | 90° | 54° | 72° | — | — |
| 2004 | 92° | 59° | 75° | — | — |
| 2003 | 69° | 53° | 61° | — | — |
| 2002 | 86° | 58° | 72° | — | — |
| 2001 | 79° | 52° | 65° | — | — |
| 2000 | 81° | 50° | 65° | — | — |
| 1999 | 72° | 54° | 63° | — | — |
| 1984 | 84° | 54° | 69° | — | — |
| 1983 | 75° | 51° | 63° | — | — |
| 1982 | 74° | 47° | 60° | — | — |
| 1981 | 78° | 55° | 67° | — | — |
| 1980 | 63° | 48° | 55° | — | — |
| 1979 | 92° | 60° | 76° | — | — |
| 1978 | 85° | 55° | 70° | — | — |
| 1977coldest | 61° | 50° | 55° | — | — |
| 1976 | 93° | 61° | 77° | — | — |
| 1975 | 78° | 52° | 65° | — | — |
| 1974 | 61° | 51° | 56° | — | — |
| 1973 | 72° | 52° | 62° | — | — |
| 1972 | 98° | 58° | 78° | — | — |
| 1971 | 77° | 49° | 63° | — | — |
41 years of data from ONTARIO INTL AP