Weather on March 4
Ontario, CA
55 Years of Data
Avg High
66°F
Avg Low
45°F
Warmest
1972
71°F avg
Coldest
1976
42°F avg
About This Date
March 4th in Ontario, CA typically brings mild spring weather, with average highs around 66°F and lows near 45°F. Over 42 years of records, the warmest March 4th was in 1972 (71°F average), while the coldest was 1976 (42°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 29% of March 4th dates historically, with the wettest March 4th recording 7.57" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for March 4th in Ontario, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 70° | 51° | 60° | — | — |
| 2025 | 68° | 44° | 56° | — | — |
| 2024 | 61° | 48° | 54° | — | — |
| 2023 | 58° | 41° | 49° | — | — |
| 2022 | 59° | 50° | 55° | 0.2" | — |
| 2021 | 69° | 41° | 55° | — | — |
| 2020 | 77° | 48° | 63° | — | — |
| 2019 | 65° | 51° | 58° | — | — |
| 2018 | 61° | 41° | 51° | — | — |
| 2017 | 69° | 47° | 58° | — | — |
| 2016 | 73° | 48° | 61° | — | — |
| 2015 | 72° | 44° | 58° | — | — |
| 2014 | 67° | 50° | 58° | — | — |
| 2013 | 68° | 51° | 60° | — | — |
| 2012 | 87° | 45° | 66° | — | — |
| 2011 | 76° | 46° | 61° | — | — |
| 2010 | 58° | 45° | 51° | 0.23" | — |
| 2009 | 59° | 45° | 52° | 0.33" | — |
| 2008 | 72° | 45° | 58° | — | — |
| 2007 | 79° | 44° | 61° | — | — |
| 2006 | 60° | 38° | 49° | — | — |
| 2005 | 58° | 50° | 54° | 0.51" | — |
| 2004 | 66° | 48° | 57° | — | — |
| 2003 | 55° | 45° | 50° | 0.03" | — |
| 2002 | 78° | 36° | 57° | — | — |
| 2001 | 62° | 49° | 55° | — | — |
| 2000 | 54° | 45° | 49° | 0.89" | — |
| 1999 | 59° | 50° | 55° | 0.03" | — |
| 1984 | 77° | 42° | 60° | — | — |
| 1983 | 64° | 49° | 56° | 0.3" | — |
| 1982 | 65° | 35° | 50° | — | — |
| 1981 | 59° | 50° | 55° | 0.08" | — |
| 1980 | 61° | 49° | 55° | 0.08" | — |
| 1979 | 73° | 42° | 58° | — | — |
| 1978 | 57° | 50° | 54° | 7.57" | — |
| 1977 | 65° | 36° | 50° | — | — |
| 1976coldest | 54° | 31° | 42° | — | — |
| 1975 | 75° | 44° | 60° | — | — |
| 1974 | 62° | 32° | 47° | — | — |
| 1973 | 59° | 42° | 51° | 0.51" | — |
| 1972warmest | 90° | 52° | 71° | — | — |
| 1971 | 68° | 39° | 54° | — | — |
42 years of data from ONTARIO INTL AP