Weather on February 18
Sunnyvale, CA
55 Years of Data
Avg High
62°F
Avg Low
45°F
Warmest
1981
63°F avg
Coldest
2006
42°F avg
About This Date
February 18th in Sunnyvale, CA typically brings mild winter weather, with average highs around 62°F and lows near 45°F. Over 56 years of records, the warmest February 18th was in 1981 (63°F average), while the coldest was 2006 (42°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 41% of February 18th dates historically, with the wettest February 18th recording 2.84" of rain. The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for February 18th in Sunnyvale, CA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 52° | 39° | 46° | — | — |
| 2025 | 63° | 43° | 53° | — | — |
| 2024 | 70° | 51° | 60° | 1.27" | — |
| 2023 | 66° | 33° | 50° | — | — |
| 2022 | 70° | 39° | 54° | — | — |
| 2021 | 68° | 37° | 53° | — | — |
| 2020 | 69° | 45° | 57° | — | — |
| 2019 | 56° | 35° | 45° | — | — |
| 2018 | 58° | 45° | 51° | — | — |
| 2017 | 56° | 48° | 52° | 0.38" | — |
| 2016 | 64° | 50° | 57° | 0.15" | — |
| 2015 | 64° | 52° | 58° | — | — |
| 2014 | 65° | 43° | 54° | — | — |
| 2013 | 54° | 43° | 48° | — | — |
| 2012 | 61° | 47° | 54° | — | — |
| 2011 | 48° | 40° | 44° | 2.16" | — |
| 2010 | 56° | 48° | 52° | — | — |
| 2009 | 62° | 41° | 52° | 0.03" | — |
| 2008 | 56° | 49° | 52° | — | — |
| 2007 | 60° | 46° | 53° | — | — |
| 2006coldest | 51° | 34° | 42° | — | — |
| 2005 | 66° | 51° | 59° | 0.76" | — |
| 2004 | 60° | 49° | 54° | 0.13" | — |
| 2003 | 60° | 38° | 49° | 0.03" | — |
| 2002 | 57° | 44° | 51° | 0.03" | — |
| 2001 | 60° | 49° | 54° | 0.18" | — |
| 2000 | 62° | 44° | 53° | — | — |
| 1999 | 60° | 46° | 53° | 0.69" | — |
| 1998 | 62° | 43° | 52° | — | — |
| 1997 | 65° | 42° | 53° | — | — |
| 1996 | 67° | 54° | 60° | 0.03" | — |
| 1995 | 66° | 40° | 53° | — | — |
| 1994 | 56° | 42° | 49° | 0.79" | — |
| 1993 | 60° | 54° | 57° | 2.84" | — |
| 1992 | 61° | 46° | 53° | 0.23" | — |
| 1991 | 69° | 44° | 57° | — | — |
| 1990 | 52° | 35° | 43° | 0.08" | — |
| 1989 | 59° | 50° | 55° | 0.03" | — |
| 1988 | 67° | 45° | 56° | — | — |
| 1987 | 64° | 46° | 55° | — | — |
| 1986 | 67° | 56° | 61° | 2.44" | — |
| 1985 | 69° | 43° | 56° | — | — |
| 1984 | 58° | 40° | 49° | — | — |
| 1983 | 59° | 50° | 55° | 0.61" | — |
| 1982 | 71° | 46° | 59° | — | — |
| 1981warmest | 78° | 48° | 63° | — | — |
| 1980 | 67° | 56° | 61° | 2.54" | — |
| 1979 | 56° | 47° | 51° | 0.53" | — |
| 1978 | 66° | 50° | 58° | — | — |
| 1977 | 76° | 42° | 59° | — | — |
| 1976 | 58° | 47° | 52° | 0.05" | — |
| 1975 | 59° | 39° | 49° | — | — |
| 1974 | 53° | 39° | 46° | — | — |
| 1973 | 62° | 46° | 54° | — | — |
| 1972 | 65° | 49° | 57° | — | — |
| 1971 | 58° | 41° | 49° | 0.18" | — |
56 years of data from MOFFETT FED AIRFIELD