Weather on May 21
Santa Clara, CA
55 Years of Data
About This Date
May 21st in Santa Clara, CA typically brings pleasant spring weather, with average highs around 76°F and lows near 52°F. Over 56 years of records, the warmest May 21st was in 1988 (77°F average), while the coldest was 2010 (56°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 7% of May 21st dates historically, with the wettest May 21st recording 0.99" 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 May 21st in Santa Clara, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 85° | 55° | 70° | — | — |
| 2025 | 81° | 51° | 66° | — | — |
| 2024 | 83° | 52° | 67° | — | — |
| 2023 | 79° | 57° | 68° | — | — |
| 2022 | 84° | 52° | 68° | — | — |
| 2021 | 70° | 48° | 59° | — | — |
| 2020 | 79° | 51° | 65° | — | — |
| 2019 | 62° | 50° | 56° | 0.36" | — |
| 2018 | 74° | 55° | 64° | — | — |
| 2017 | 89° | 59° | 74° | — | — |
| 2016 | 63° | 52° | 57° | 0.36" | — |
| 2015 | 68° | 55° | 62° | — | — |
| 2014 | 77° | 55° | 66° | — | — |
| 2013 | 69° | 51° | 60° | — | — |
| 2012 | 75° | 54° | 64° | — | — |
| 2011 | 71° | 52° | 61° | — | — |
| 2010coldest | 65° | 47° | 56° | — | — |
| 2009 | 78° | 48° | 63° | — | — |
| 2008 | 70° | 50° | 60° | — | — |
| 2007 | 79° | 54° | 66° | — | — |
| 2006 | 68° | 54° | 61° | 0.99" | — |
| 2005 | 77° | 53° | 65° | — | — |
| 2004 | 64° | 55° | 60° | — | — |
| 2003 | 83° | 56° | 69° | — | — |
| 2002 | 66° | 51° | 59° | 0.25" | — |
| 2001 | 88° | 58° | 73° | — | — |
| 2000 | 97° | — | — | — | — |
| 1999 | 81° | 48° | 64° | — | — |
| 1998 | 68° | 49° | 58° | — | — |
| 1997 | 81° | 54° | 67° | — | — |
| 1996 | 73° | 52° | 62° | — | — |
| 1995 | 67° | 55° | 61° | — | — |
| 1994 | 70° | 48° | 59° | — | — |
| 1993 | 74° | 56° | 65° | — | — |
| 1992 | 84° | 54° | 69° | — | — |
| 1991 | 78° | 52° | 65° | — | — |
| 1990 | 78° | 55° | 67° | — | — |
| 1989 | 74° | 50° | 62° | — | — |
| 1988warmest | 94° | 60° | 77° | — | — |
| 1987 | 67° | 53° | 60° | — | — |
| 1986 | 69° | 51° | 60° | — | — |
| 1985 | 82° | 50° | 66° | — | — |
| 1984 | 75° | 48° | 62° | — | — |
| 1983 | 89° | 57° | 73° | — | — |
| 1982 | 70° | 51° | 60° | — | — |
| 1981 | 67° | 55° | 61° | — | — |
| 1980 | 75° | 53° | 64° | — | — |
| 1979 | 71° | 58° | 64° | — | — |
| 1978 | 74° | 55° | 64° | — | — |
| 1977 | 69° | 49° | 59° | — | — |
| 1976 | 75° | 50° | 63° | — | — |
| 1975 | 86° | 45° | 65° | — | — |
| 1974 | 74° | 41° | 57° | — | — |
| 1973 | 75° | 50° | 63° | — | — |
| 1972 | 75° | 54° | 64° | — | — |
| 1971 | 72° | 45° | 58° | — | — |
Santa Clara, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Santa Clara, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Santa Clara, 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 Santa Clara, CA
Santa Clara, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.