Weather on March 15
Rancho Cucamonga, CA
55 Years of Data
About This Date
March 15th in Rancho Cucamonga, CA typically brings pleasant spring weather, with average highs around 72°F and lows near 47°F — a 25°F daily swing. Over 42 years of records, the warmest March 15th was in 2015 (76°F average), while the coldest was 2021 (46°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 17% of March 15th dates historically, with the wettest March 15th recording 2.53" of rain. The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
Planning for March 15th in Rancho Cucamonga, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 86° | 54° | 70° | — | — |
| 2025 | 63° | 43° | 53° | — | — |
| 2024 | 65° | 50° | 57° | — | — |
| 2023 | 60° | 50° | 55° | 1.1" | — |
| 2022 | 81° | 53° | 67° | — | — |
| 2021coldest | 53° | 39° | 46° | 0.18" | — |
| 2020 | 62° | 51° | 57° | — | — |
| 2019 | 76° | 61° | 68° | — | — |
| 2018 | 63° | 47° | 55° | 0.14" | — |
| 2017 | 88° | 59° | 73° | — | — |
| 2016 | 83° | 50° | 66° | — | — |
| 2015warmest | 92° | 60° | 76° | — | — |
| 2014 | 87° | 49° | 68° | — | — |
| 2013 | 86° | 55° | 71° | — | — |
| 2012 | 71° | 48° | 60° | — | — |
| 2011 | 81° | 51° | 66° | — | — |
| 2010 | 81° | 46° | 63° | — | — |
| 2009 | 60° | 47° | 53° | — | — |
| 2008 | 61° | 45° | 53° | 0.03" | — |
| 2007 | 83° | 51° | 67° | — | — |
| 2006 | 63° | 45° | 54° | — | — |
| 2005 | 73° | 52° | 62° | — | — |
| 2004 | 79° | 51° | 65° | — | — |
| 2003 | 57° | 54° | 55° | 2.53" | — |
| 2002 | 63° | 37° | 50° | — | — |
| 2001 | 68° | 51° | 60° | — | — |
| 2000 | 77° | 47° | 62° | — | — |
| 1999 | 54° | 40° | 47° | 0.11" | — |
| 1984 | 70° | 48° | 59° | — | — |
| 1983 | 69° | 42° | 56° | — | — |
| 1982 | 59° | 48° | 54° | 0.75" | — |
| 1981 | 72° | 39° | 55° | — | — |
| 1980 | 68° | 43° | 55° | — | — |
| 1979 | 62° | 43° | 52° | — | — |
| 1978 | 79° | 44° | 61° | — | — |
| 1977 | 63° | 32° | 47° | — | — |
| 1976 | 79° | 41° | 60° | — | — |
| 1975 | 60° | 34° | 47° | — | — |
| 1974 | 83° | 48° | 65° | — | — |
| 1973 | 68° | 37° | 53° | — | — |
| 1972 | 83° | 45° | 64° | — | — |
| 1971 | 73° | 37° | 55° | — | — |
Rancho Cucamonga, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Rancho Cucamonga, CA Monthly Precipitation
Average rainfall per month, in inches.
Rancho Cucamonga, 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 Rancho Cucamonga, CA
Most pleasant months in Rancho Cucamonga, CA: January, February, March, April, May, October, November, December.
What to expect on March 15th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
March 15th outlook →