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Concord, CA Weather on May 27
May 27th in Concord, CA typically brings pleasant spring weather, with average highs around 79°F and lows near 52°F — a 27°F daily swing. Over 55 years of records, the warmest May 27th was in 2020 (81°F average), while the coldest was 2010 (55°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 27th dates historically, with the wettest May 27th recording 0.86" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
What to Expect on May 27
Planning for May 27th in Concord, CA? Great weather for outdoor activities.
May 27 Weather Records for Concord
- •The all-time record high for May 27th in Concord, CA is 101°F, set in 1975.
- •The coldest May 27th on record dropped to 43°F in 1977.
- •Temperatures have reached 90°F or higher on May 27th in 8 of the last 55 years.
- •Last year (1971), May 27th was 12°F cooler than the long-term average.
Frequently Asked Questions
What was the warmest May 27 ever in Concord?
The warmest May 27 in Concord, CA reached 101°F in 1975. That is 22°F above the long-term average high of 79°F.
What was the coldest May 27 ever in Concord?
The coldest May 27 in Concord, CA dropped to 43°F in 1977. That is 9°F below the long-term average low of 52°F.
What is the average temperature on May 27 in Concord?
On May 27, Concord averages a high of 79°F and a low of 52°F based on 55 years of NOAA weather observations from CONCORD BUCHANAN FLD.
How many years of weather data are available for May 27 in Concord?
We have 55 years of weather records for May 27 in Concord, 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 27 Weather History in Concord
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 88°F | 54°F | 0" | -- |
| 2024 | 81°F | 53°F | 0" | -- |
| 2023 | 74°F | 54°F | 0" | -- |
| 2022 | 71°F | 55°F | 0" | -- |
| 2021 | 82°F | 52°F | 0" | -- |
| 2020 | 100°F | 63°F | 0" | -- |
| 2019 | 70°F | 53°F | 0" | -- |
| 2018 | 87°F | 55°F | 0" | -- |
| 2017 | 77°F | 53°F | 0" | -- |
| 2016 | 89°F | 55°F | 0" | -- |
| 2015 | 75°F | 54°F | 0" | -- |
| 2014 | 83°F | 54°F | 0" | -- |
| 2013 | 65°F | 52°F | 0.05" | -- |
| 2012 | 73°F | 51°F | 0" | -- |
| 2011 | 71°F | 50°F | 0" | -- |
| 2010 | 63°F | 47°F | 0.86" | -- |
| 2009 | 88°F | 56°F | 0" | -- |
| 2008 | 70°F | 52°F | 0" | -- |
| 2007 | 72°F | 52°F | 0" | -- |
| 2006 | 69°F | 50°F | 0" | -- |
| 2005 | 79°F | 55°F | 0" | -- |
| 2004 | 79°F | 58°F | 0" | -- |
| 2003 | 94°F | 55°F | 0" | -- |
| 2002 | 75°F | 53°F | 0" | -- |
| 2001 | 69°F | 53°F | 0" | -- |
| 2000 | 85°F | 57°F | 0" | -- |
| 1999 | 76°F | 51°F | 0" | -- |
| 1998 | 63°F | 50°F | 0.51" | -- |
| 1997 | 85°F | 62°F | 0" | -- |
| 1996 | 78°F | 53°F | 0" | -- |
| 1995 | 76°F | 52°F | 0" | -- |
| 1994 | 78°F | 53°F | 0" | -- |
| 1993 | 71°F | 56°F | 0.13" | -- |
| 1992 | 85°F | 58°F | 0" | -- |
| 1991 | 85°F | 47°F | 0" | -- |
| 1990 | 65°F | 53°F | 0.53" | -- |
| 1989 | 76°F | 50°F | 0" | -- |
| 1988 | 79°F | 52°F | 0" | -- |
| 1987 | 78°F | 44°F | 0" | -- |
| 1986 | 84°F | 55°F | 0" | -- |
| 1985 | 66°F | 51°F | 0" | -- |
| 1984 | 100°F | 50°F | 0" | -- |
| 1983 | 83°F | 52°F | 0" | -- |
| 1982 | 79°F | 49°F | 0" | -- |
| 1981 | 90°F | 55°F | 0" | -- |
| 1980 | 70°F | 44°F | 0" | -- |
| 1979 | 80°F | 51°F | 0" | -- |
| 1978 | 91°F | 49°F | 0" | -- |
| 1977 | 79°F | 43°F | 0" | -- |
| 1976 | 93°F | 47°F | 0" | -- |
| 1975 | 101°F | 52°F | 0" | -- |
| 1974 | 96°F | 53°F | 0" | -- |
| 1973 | 85°F | 49°F | 0" | -- |
| 1972 | 79°F | 48°F | 0" | -- |
| 1971 | 67°F | 47°F | 0.03" | -- |
Based on 55 years of data from NOAA station: CONCORD BUCHANAN FLD
Monthly Climate Averages
Historical temperature and precipitation averages for Concord, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.