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San Francisco, CA Weather on May 28
San Francisco hit 88°F on May 28, 1975—a sweltering rarity
May 28 typically brings mild weather to San Francisco, with average highs around 65°F and lows near 52°F. However, the city experienced an exceptional spike in 1975 when temperatures reached 88°F, far exceeding the normal range by over 20 degrees. Across 55 years of records, this remains the warmest May 28 on file, contrasting sharply with the coolest recorded low of 48°F set in 1972.
What to Expect on May 28
Planning for May 28th in San Francisco, CA? Great weather for outdoor activities.
Frequently Asked Questions
What was the warmest May 28 ever in San Francisco?
The warmest May 28 in San Francisco, CA reached 88°F in 1975. That is 23°F above the long-term average high of 65°F.
What was the coldest May 28 ever in San Francisco?
The coldest May 28 in San Francisco, CA dropped to 48°F in 1999. That is 4°F below the long-term average low of 52°F.
What is the average temperature on May 28 in San Francisco?
On May 28, San Francisco averages a high of 65°F and a low of 52°F based on 55 years of NOAA weather observations from SAN FRANCISCO DWTN.
How many years of weather data are available for May 28 in San Francisco?
We have 55 years of weather records for May 28 in San Francisco, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
May 28 Weather History in San Francisco
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 60°F | 52°F | 0" | -- |
| 2024 | 61°F | 50°F | 0" | -- |
| 2023 | 58°F | 53°F | 0" | -- |
| 2022 | 64°F | 52°F | 0" | -- |
| 2021 | 60°F | 51°F | 0" | -- |
| 2020 | 62°F | 53°F | 0" | -- |
| 2019 | 61°F | 53°F | 0" | -- |
| 2018 | 77°F | 55°F | 0" | -- |
| 2017 | 61°F | 52°F | 0" | -- |
| 2016 | 72°F | 55°F | 0" | -- |
| 2015 | 59°F | 50°F | 0" | -- |
| 2014 | 67°F | 52°F | 0" | -- |
| 2013 | 63°F | 54°F | 0.03" | -- |
| 2012 | 59°F | 50°F | 0" | -- |
| 2011 | 63°F | 50°F | 0.71" | -- |
| 2010 | 62°F | 50°F | 0" | -- |
| 2009 | 61°F | 51°F | 0" | -- |
| 2008 | 65°F | 53°F | 0" | -- |
| 2007 | 64°F | 50°F | 0" | -- |
| 2006 | 64°F | 50°F | 0" | -- |
| 2005 | 62°F | 54°F | 0" | -- |
| 2004 | 65°F | 53°F | 0.3" | -- |
| 2003 | 87°F | 55°F | 0" | -- |
| 2002 | 62°F | 53°F | 0" | -- |
| 2001 | 65°F | 52°F | 0" | -- |
| 2000 | 65°F | 54°F | 0" | -- |
| 1999 | 56°F | 48°F | 0" | -- |
| 1998 | 60°F | 51°F | 1.5" | -- |
| 1997 | 70°F | 59°F | 0" | -- |
| 1996 | 63°F | 50°F | 0" | -- |
| 1995 | 69°F | 50°F | 0" | -- |
| 1994 | 67°F | 49°F | 0" | -- |
| 1993 | 70°F | 56°F | 0" | -- |
| 1992 | 68°F | 55°F | 0" | -- |
| 1991 | 56°F | 49°F | 0" | -- |
| 1990 | 64°F | 53°F | 0.05" | -- |
| 1989 | 64°F | 50°F | 0" | -- |
| 1988 | 63°F | 51°F | 0.43" | -- |
| 1987 | 66°F | 50°F | 0" | -- |
| 1986 | 66°F | 52°F | 0" | -- |
| 1985 | 63°F | 52°F | 0" | -- |
| 1984 | 83°F | 57°F | 0" | -- |
| 1983 | 61°F | 53°F | 0" | -- |
| 1982 | 58°F | 50°F | 0" | -- |
| 1981 | 60°F | 52°F | 0" | -- |
| 1980 | 58°F | 52°F | 0" | -- |
| 1979 | 66°F | 52°F | 0" | -- |
| 1978 | 67°F | 53°F | 0" | -- |
| 1977 | 63°F | 51°F | 0" | -- |
| 1976 | 61°F | 49°F | 0" | -- |
| 1975 | 88°F | 60°F | 0" | -- |
| 1974 | 55°F | 49°F | 0" | -- |
| 1973 | 83°F | 56°F | 0" | -- |
| 1972 | 57°F | 48°F | 0" | -- |
| 1971 | 62°F | 52°F | 0" | -- |
Based on 55 years of data from NOAA station: SAN FRANCISCO DWTN
How Has May 28 Changed?
The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
Monthly Climate Averages
Historical temperature and precipitation averages for San Francisco, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.