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Santa Maria, CA Weather on May 15
May 15th in Santa Maria, CA typically brings mild spring weather, with average highs around 69°F and lows near 48°F. Over 55 years of records, the warmest May 15th was in 2014 (81°F average), while the coldest was 1999 (49°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 9% of May 15th dates historically, with the wettest May 15th recording 0.71" of rain. Temperatures on this date have remained relatively stable over the past several decades.
What to Expect on May 15
Planning for May 15th in Santa Maria, CA? Great weather for outdoor activities.
May 15 Weather Records for Santa Maria
- •The all-time record high for May 15th in Santa Maria, CA is 105°F, set in 2014.
- •The coldest May 15th on record dropped to 37°F in 1999.
- •Temperatures have reached 90°F or higher on May 15th in 1 of the last 55 years.
Frequently Asked Questions
What was the warmest May 15 ever in Santa Maria?
The warmest May 15 in Santa Maria, CA reached 105°F in 2014. That is 36°F above the long-term average high of 69°F.
What was the coldest May 15 ever in Santa Maria?
The coldest May 15 in Santa Maria, CA dropped to 37°F in 1999. That is 11°F below the long-term average low of 48°F.
What is the average temperature on May 15 in Santa Maria?
On May 15, Santa Maria averages a high of 69°F and a low of 48°F based on 55 years of NOAA weather observations from SANTA MARIA PUBLIC AP.
How many years of weather data are available for May 15 in Santa Maria?
We have 55 years of weather records for May 15 in Santa Maria, 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 15 Weather History in Santa Maria
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 65°F | 50°F | 0" | -- |
| 2024 | 66°F | 51°F | 0" | -- |
| 2023 | 67°F | 51°F | 0" | -- |
| 2022 | 65°F | 48°F | 0" | -- |
| 2021 | 62°F | 50°F | 0.03" | -- |
| 2020 | 70°F | 50°F | 0" | -- |
| 2019 | 73°F | 52°F | 0.18" | -- |
| 2018 | 68°F | 49°F | 0" | -- |
| 2017 | 62°F | 46°F | 0" | -- |
| 2016 | 68°F | 52°F | 0" | -- |
| 2015 | 67°F | 47°F | 0" | -- |
| 2014 | 105°F | 57°F | 0" | -- |
| 2013 | 66°F | 50°F | 0" | -- |
| 2012 | 71°F | 44°F | 0" | -- |
| 2011 | 63°F | 44°F | 0.23" | -- |
| 2010 | 63°F | 50°F | 0" | -- |
| 2009 | 71°F | 47°F | 0" | -- |
| 2008 | 87°F | 50°F | 0" | -- |
| 2007 | 65°F | 51°F | 0" | -- |
| 2006 | 73°F | 55°F | 0" | -- |
| 2005 | 76°F | 51°F | 0" | -- |
| 2004 | 66°F | 48°F | 0" | -- |
| 2003 | 66°F | 47°F | 0" | -- |
| 2002 | 61°F | 47°F | 0" | -- |
| 2001 | 76°F | 47°F | 0" | -- |
| 2000 | 68°F | 49°F | 0.03" | -- |
| 1999 | 60°F | 37°F | 0" | -- |
| 1998 | 66°F | 43°F | 0" | -- |
| 1997 | 84°F | 51°F | 0" | -- |
| 1996 | 76°F | 58°F | 0" | -- |
| 1995 | 64°F | 48°F | 0.71" | -- |
| 1994 | 69°F | 47°F | 0" | -- |
| 1993 | 77°F | 46°F | 0" | -- |
| 1992 | 68°F | 51°F | 0" | -- |
| 1991 | 75°F | 43°F | 0" | -- |
| 1990 | 62°F | 49°F | 0" | -- |
| 1989 | 66°F | 49°F | 0" | -- |
| 1988 | 71°F | 45°F | 0" | -- |
| 1987 | 62°F | 56°F | 0" | -- |
| 1986 | 64°F | 41°F | 0" | -- |
| 1985 | 68°F | 48°F | 0" | -- |
| 1984 | 65°F | 40°F | 0" | -- |
| 1983 | 67°F | 48°F | 0" | -- |
| 1982 | 65°F | 47°F | 0" | -- |
| 1981 | 63°F | 46°F | 0" | -- |
| 1980 | 64°F | 44°F | 0" | -- |
| 1979 | 67°F | 46°F | 0" | -- |
| 1978 | 70°F | 48°F | 0" | -- |
| 1977 | 62°F | 43°F | 0" | -- |
| 1976 | 72°F | 45°F | 0" | -- |
| 1975 | 63°F | 49°F | 0" | -- |
| 1974 | 64°F | 40°F | 0" | -- |
| 1973 | 71°F | 55°F | 0" | -- |
| 1972 | 67°F | 47°F | 0" | -- |
| 1971 | 67°F | 41°F | 0" | -- |
Based on 55 years of data from NOAA station: SANTA MARIA PUBLIC AP
Monthly Climate Averages
Historical temperature and precipitation averages for Santa Maria, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.