Weather on March 8
Ontario, CA
55 Years of Data
Avg High
69°F
Avg Low
45°F
Warmest
2026
73°F avg
Coldest
1974
44°F avg
About This Date
March 8th in Ontario, CA typically brings mild spring weather, with average highs around 69°F and lows near 45°F. Over 42 years of records, the warmest March 8th was in 2026 (73°F average), while the coldest was 1974 (44°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 12% of March 8th dates historically, with the wettest March 8th recording 3.1" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 8th in Ontario, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 84° | 62° | 73° | — | — |
| 2025 | 68° | 39° | 54° | — | — |
| 2024 | 69° | 43° | 56° | — | — |
| 2023 | 60° | 40° | 50° | — | — |
| 2022 | 70° | 41° | 55° | — | — |
| 2021 | 63° | 45° | 54° | — | — |
| 2020 | 65° | 49° | 57° | — | — |
| 2019 | 62° | 48° | 55° | — | — |
| 2018 | 77° | 49° | 63° | — | — |
| 2017 | 84° | 46° | 65° | — | — |
| 2016 | 69° | 39° | 54° | — | — |
| 2015 | 78° | 49° | 63° | — | — |
| 2014 | 85° | 55° | 70° | — | — |
| 2013 | 53° | 44° | 49° | 1.17" | — |
| 2012 | 75° | 41° | 58° | — | — |
| 2011 | 72° | 44° | 58° | — | — |
| 2010 | 61° | 47° | 54° | — | — |
| 2009 | 65° | 43° | 54° | — | — |
| 2008 | 74° | 46° | 60° | — | — |
| 2007 | 75° | 49° | 62° | — | — |
| 2006 | 64° | 44° | 54° | — | — |
| 2005 | 72° | 49° | 60° | — | — |
| 2004 | 90° | 52° | 71° | — | — |
| 2003 | 72° | 44° | 58° | — | — |
| 2002 | 65° | 48° | 56° | — | — |
| 2001 | 65° | 48° | 56° | — | — |
| 2000 | 58° | 42° | 50° | 0.36" | — |
| 1999 | 63° | 41° | 52° | — | — |
| 1984 | 83° | 36° | 59° | — | — |
| 1983 | 70° | 53° | 61° | — | — |
| 1982 | 69° | 53° | 61° | — | — |
| 1981 | 69° | 38° | 53° | — | — |
| 1980 | 66° | 38° | 52° | — | — |
| 1979 | 79° | 50° | 64° | — | — |
| 1978 | 72° | 49° | 60° | — | — |
| 1977 | 75° | 47° | 61° | — | — |
| 1976 | 60° | 39° | 50° | — | — |
| 1975 | 61° | 49° | 55° | 2.67" | — |
| 1974coldest | 48° | 39° | 44° | 3.1" | — |
| 1973 | 58° | 44° | 51° | 1.78" | — |
| 1972 | 74° | 46° | 60° | — | — |
| 1971 | 69° | 37° | 53° | — | — |
42 years of data from ONTARIO INTL AP