Weather on February 18
Ontario, CA
55 Years of Data
Avg High
67°F
Avg Low
45°F
Warmest
1981
66°F avg
Coldest
1974
46°F avg
About This Date
February 18th in Ontario, CA typically brings mild winter weather, with average highs around 67°F and lows near 45°F. Over 42 years of records, the warmest February 18th was in 1981 (66°F average), while the coldest was 1974 (46°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 24% of February 18th dates historically, with the wettest February 18th recording 6.3" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for February 18th in Ontario, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 57° | 46° | 52° | 1.3" | — |
| 2025 | 69° | 50° | 60° | — | — |
| 2024 | 63° | 50° | 56° | — | — |
| 2023 | 69° | 38° | 53° | — | — |
| 2022 | 74° | 42° | 58° | — | — |
| 2021 | 68° | 49° | 58° | — | — |
| 2020 | 75° | 46° | 61° | — | — |
| 2019 | 58° | 37° | 47° | — | — |
| 2018 | 68° | 45° | 56° | — | — |
| 2017 | 59° | 49° | 54° | 0.25" | — |
| 2016 | 66° | 53° | 60° | 0.18" | — |
| 2015 | 78° | 51° | 65° | — | — |
| 2014 | 71° | 52° | 61° | — | — |
| 2013 | 65° | 47° | 56° | — | — |
| 2012 | 65° | 39° | 52° | — | — |
| 2011 | 62° | 45° | 53° | 0.71" | — |
| 2010 | 70° | 49° | 59° | — | — |
| 2009 | 65° | 42° | 53° | — | — |
| 2008 | 68° | 45° | 56° | — | — |
| 2007 | 75° | 54° | 64° | — | — |
| 2006 | 55° | 39° | 47° | 0.13" | — |
| 2005 | 58° | 52° | 55° | 1.6" | — |
| 2004 | 62° | 48° | 55° | 0.74" | — |
| 2003 | 66° | 46° | 56° | — | — |
| 2002 | 59° | 42° | 51° | — | — |
| 2001 | 58° | 45° | 51° | 0.08" | — |
| 2000 | 70° | 43° | 56° | — | — |
| 1999 | 60° | 45° | 52° | — | — |
| 1984 | — | 31° | — | — | — |
| 1983 | 65° | 55° | 60° | — | — |
| 1982 | 72° | 49° | 60° | — | — |
| 1981warmest | 86° | 47° | 66° | — | — |
| 1980 | 64° | 54° | 59° | 6.3" | — |
| 1979 | 69° | 40° | 54° | — | — |
| 1978 | 67° | 40° | 53° | — | — |
| 1977 | 83° | 48° | 65° | — | — |
| 1976 | 69° | 41° | 55° | — | — |
| 1975 | 62° | 32° | 47° | — | — |
| 1974coldest | 59° | 34° | 46° | — | — |
| 1973 | 68° | 40° | 54° | — | — |
| 1972 | 79° | 49° | 64° | — | — |
| 1971 | 55° | 39° | 47° | 0.08" | — |
42 years of data from ONTARIO INTL AP