Weather on August 21
Daly City, CA
55 Years of Data
Avg High
65°F
Avg Low
55°F
Warmest
1983
69°F avg
Coldest
2011
52°F avg
About This Date
August 21st in Daly City, CA typically brings mild summer weather, with average highs around 65°F and lows near 55°F. Over 55 years of records, the warmest August 21st was in 1983 (69°F average), while the coldest was 2011 (52°F) — a 17°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Daly City, CA? Great weather for outdoor activities.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 55° | 59° | — | — |
| 2024 | 62° | 57° | 60° | — | — |
| 2023 | 67° | 60° | 63° | — | — |
| 2022 | 70° | 55° | 62° | — | — |
| 2021 | 62° | 57° | 60° | — | — |
| 2020 | 75° | 43° | 59° | — | — |
| 2019 | 74° | 58° | 66° | — | — |
| 2018 | 60° | 54° | 57° | — | — |
| 2017 | 65° | 61° | 63° | — | — |
| 2016 | 61° | 56° | 58° | — | — |
| 2015 | 64° | 59° | 62° | — | — |
| 2014 | 65° | 60° | 62° | — | — |
| 2013 | 63° | 58° | 60° | — | — |
| 2012 | 55° | 54° | 54° | — | — |
| 2011coldest | 58° | 46° | 52° | — | — |
| 2010 | 62° | 52° | 57° | — | — |
| 2009 | 60° | 55° | 58° | — | — |
| 2008 | 63° | 53° | 58° | — | — |
| 2007 | 65° | 57° | 61° | — | — |
| 2006 | 59° | 55° | 57° | — | — |
| 2005 | 58° | 54° | 56° | — | — |
| 2004 | 64° | 59° | 62° | — | — |
| 2003 | 67° | 61° | 64° | — | — |
| 2002 | 61° | 52° | 56° | — | — |
| 2001 | 61° | 52° | 56° | — | — |
| 2000 | 68° | 53° | 61° | — | — |
| 1999 | 62° | 55° | 59° | — | — |
| 1998 | 60° | 55° | 58° | — | — |
| 1997 | 69° | 60° | 65° | — | — |
| 1996 | 63° | 54° | 58° | — | — |
| 1995 | 61° | 57° | 59° | — | — |
| 1994 | 62° | 55° | 59° | — | — |
| 1993 | 82° | 56° | 69° | — | — |
| 1992 | 64° | — | — | — | — |
| 1991 | 66° | 58° | 62° | — | — |
| 1990 | 68° | 56° | 62° | — | — |
| 1989 | 67° | 57° | 62° | — | — |
| 1988 | 68° | 57° | 63° | — | — |
| 1987 | 70° | 57° | 63° | — | — |
| 1986 | 65° | 52° | 58° | — | — |
| 1985 | 69° | 57° | 63° | — | — |
| 1984 | 67° | 55° | 61° | — | — |
| 1983warmest | 73° | 64° | 69° | — | — |
| 1982 | 66° | 52° | 59° | — | — |
| 1981 | 67° | 53° | 60° | — | — |
| 1980 | 64° | 53° | 59° | — | — |
| 1979 | 71° | 58° | 64° | — | — |
| 1978 | 69° | 50° | 60° | — | — |
| 1977 | 65° | 53° | 59° | — | — |
| 1976 | 72° | 54° | 63° | — | — |
| 1975 | 63° | 58° | 60° | — | — |
| 1974 | 74° | 55° | 64° | — | — |
| 1973 | 61° | 50° | 55° | — | — |
| 1972 | 68° | 56° | 62° | — | — |
| 1971 | 64° | 56° | 60° | — | — |
55 years of data from SAN FRANCISCO OCEANSIDE