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Santa Rosa, CA Weather on April 12
April 12th in Santa Rosa, CA typically brings mild spring weather, with average highs around 69°F and lows near 44°F — a 25°F daily swing. Over 55 years of records, the warmest April 12th was in 2008 (67°F average), while the coldest was 2018 (49°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 22% of April 12th dates historically, with the wettest April 12th recording 3.99" of rain. The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
What to Expect on April 12
Planning for April 12th in Santa Rosa, CA? Great weather for outdoor activities.
April 12 Weather Records for Santa Rosa
- •The all-time record high for April 12th in Santa Rosa, CA is 87°F, set in 2008.
- •The coldest April 12th on record dropped to 35°F in 2011.
- •Last year (1971), April 12th was 5°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest April 12 ever in Santa Rosa?
The warmest April 12 in Santa Rosa, CA reached 87°F in 2008. That is 18°F above the long-term average high of 69°F.
What was the coldest April 12 ever in Santa Rosa?
The coldest April 12 in Santa Rosa, CA dropped to 35°F in 2011. That is 9°F below the long-term average low of 44°F.
What is the average temperature on April 12 in Santa Rosa?
On April 12, Santa Rosa averages a high of 69°F and a low of 44°F based on 55 years of NOAA weather observations from SANTA ROSA.
How many years of weather data are available for April 12 in Santa Rosa?
We have 55 years of weather records for April 12 in Santa Rosa, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
April 12 Weather History in Santa Rosa
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 73°F | 42°F | 0" | -- |
| 2024 | 61°F | 44°F | 0" | -- |
| 2023 | 68°F | 38°F | 0" | -- |
| 2022 | 63°F | 36°F | 0" | -- |
| 2021 | 74°F | 40°F | 0" | -- |
| 2020 | 69°F | 46°F | 0" | -- |
| 2019 | 78°F | 43°F | 0" | -- |
| 2018 | 60°F | 37°F | 0.36" | -- |
| 2017 | 58°F | 49°F | -- | -- |
| 2016 | 65°F | 50°F | -- | -- |
| 2015 | 77°F | 48°F | -- | -- |
| 2014 | 63°F | 49°F | -- | -- |
| 2013 | 71°F | 48°F | -- | -- |
| 2012 | 60°F | 44°F | 1.57" | -- |
| 2011 | 64°F | 35°F | -- | -- |
| 2010 | 57°F | 47°F | 1.78" | -- |
| 2009 | 72°F | 46°F | 0" | -- |
| 2008 | 87°F | 46°F | 0" | -- |
| 2007 | 66°F | 42°F | 0.05" | -- |
| 2006 | 57°F | 51°F | 2.13" | -- |
| 2005 | 64°F | 37°F | 0" | -- |
| 2004 | 68°F | 49°F | 0" | -- |
| 2003 | 53°F | 48°F | 2.84" | -- |
| 2002 | 79°F | 47°F | 0" | -- |
| 2001 | 65°F | 43°F | -- | -- |
| 2000 | 72°F | 52°F | -- | -- |
| 1999 | 67°F | 41°F | 0" | -- |
| 1998 | 62°F | 39°F | 0" | -- |
| 1997 | 70°F | 48°F | 0" | -- |
| 1996 | 65°F | 46°F | 0" | -- |
| 1995 | 69°F | 51°F | 0" | -- |
| 1994 | 76°F | 42°F | 0" | -- |
| 1993 | 69°F | 43°F | 0" | -- |
| 1992 | 60°F | 52°F | 3.99" | -- |
| 1991 | 73°F | 42°F | 0" | -- |
| 1990 | 80°F | 50°F | 0" | -- |
| 1989 | 74°F | 47°F | 0" | -- |
| 1988 | 82°F | 49°F | 0" | -- |
| 1987 | 71°F | 43°F | 0" | -- |
| 1986 | 55°F | 45°F | 0.03" | -- |
| 1985 | 74°F | 45°F | -- | -- |
| 1984 | 67°F | 45°F | 0" | -- |
| 1983 | 62°F | 37°F | 0.25" | -- |
| 1982 | 60°F | 48°F | 0.23" | -- |
| 1981 | 66°F | 38°F | 0" | -- |
| 1980 | 82°F | 42°F | 0" | -- |
| 1979 | 73°F | 41°F | 0" | -- |
| 1978 | 70°F | 45°F | 0" | -- |
| 1977 | 86°F | 43°F | 0" | -- |
| 1976 | 62°F | 42°F | 0.25" | -- |
| 1975 | 77°F | 38°F | 0" | -- |
| 1974 | 80°F | 44°F | 0" | -- |
| 1973 | 68°F | 46°F | 0" | -- |
| 1972 | 59°F | 45°F | 1.09" | -- |
| 1971 | 74°F | 38°F | 0" | -- |
Based on 55 years of data from NOAA station: SANTA ROSA
Monthly Climate Averages
Historical temperature and precipitation averages for Santa Rosa, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.