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San Jose, CA Weather on April 9
April 9th in San Jose, CA typically brings mild spring weather, with average highs around 69°F and lows near 47°F. Over 55 years of records, the warmest April 9th was in 1989 (76°F average), while the coldest was 1999 (46°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 16% of April 9th dates historically, with the wettest April 9th recording 203.2" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
What to Expect on April 9
Planning for April 9th in San Jose, CA? Great weather for outdoor activities.
April 9 Weather Records for San Jose
- •The all-time record high for April 9th in San Jose, CA is 95°F, set in 1989.
- •The coldest April 9th on record dropped to 36°F in 1999.
- •Temperatures have reached 90°F or higher on April 9th in 1 of the last 55 years.
Frequently Asked Questions
What was the warmest April 9 ever in San Jose?
The warmest April 9 in San Jose, CA reached 95°F in 1989. That is 26°F above the long-term average high of 69°F.
What was the coldest April 9 ever in San Jose?
The coldest April 9 in San Jose, CA dropped to 36°F in 1999. That is 11°F below the long-term average low of 47°F.
What is the average temperature on April 9 in San Jose?
On April 9, San Jose averages a high of 69°F and a low of 47°F based on 55 years of NOAA weather observations from SAN JOSE.
How many years of weather data are available for April 9 in San Jose?
We have 55 years of weather records for April 9 in San Jose, 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 9 Weather History in San Jose
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 76°F | 48°F | 0" | -- |
| 2024 | 78°F | 47°F | 0" | -- |
| 2023 | 74°F | 48°F | 0" | -- |
| 2022 | 74°F | 49°F | 0" | -- |
| 2021 | 63°F | 46°F | 0" | -- |
| 2020 | 65°F | 53°F | 0" | -- |
| 2019 | 66°F | 52°F | 0" | -- |
| 2018 | 81°F | 47°F | 0" | -- |
| 2017 | 65°F | 41°F | 0" | -- |
| 2016 | 65°F | 58°F | 0.89" | -- |
| 2015 | 70°F | 44°F | 0" | -- |
| 2014 | 75°F | 54°F | 0" | -- |
| 2013 | 74°F | 48°F | 0" | -- |
| 2012 | 73°F | 43°F | 0" | -- |
| 2011 | 64°F | 39°F | 0" | -- |
| 2010 | 71°F | 44°F | 0" | -- |
| 2009 | 56°F | 50°F | 0.2" | -- |
| 2008 | 63°F | 48°F | 0" | -- |
| 2007 | 68°F | 51°F | 0" | -- |
| 2006 | 62°F | 49°F | 0.03" | -- |
| 2005 | 64°F | 49°F | 0.03" | -- |
| 2004 | 77°F | 52°F | 0" | -- |
| 2003 | 77°F | 49°F | 0" | -- |
| 2002 | 70°F | 53°F | 0" | -- |
| 2001 | 61°F | 39°F | 0.74" | -- |
| 2000 | 63°F | 50°F | 0" | -- |
| 1999 | 56°F | 36°F | 0" | -- |
| 1998 | 69°F | 49°F | 0" | -- |
| 1997 | 67°F | 45°F | 0" | -- |
| 1996 | 68°F | 54°F | 0" | -- |
| 1995 | 65°F | 44°F | 0" | -- |
| 1994 | 61°F | 46°F | 0.03" | -- |
| 1993 | 68°F | 52°F | 0" | -- |
| 1992 | 69°F | 48°F | 0" | -- |
| 1991 | 70°F | 46°F | 0" | -- |
| 1990 | 77°F | 46°F | 0" | -- |
| 1989 | 95°F | 58°F | 0" | -- |
| 1988 | 87°F | 45°F | 0" | -- |
| 1987 | 83°F | 50°F | 0" | -- |
| 1986 | 74°F | 52°F | 0" | -- |
| 1985 | 67°F | 50°F | 0" | -- |
| 1984 | 62°F | 39°F | 0" | -- |
| 1983 | 63°F | 48°F | 203.2" | -- |
| 1982 | 69°F | 45°F | 0" | -- |
| 1981 | 68°F | 44°F | 0" | -- |
| 1980 | 70°F | 50°F | 0" | -- |
| 1979 | 62°F | 49°F | 0.1" | -- |
| 1978 | 80°F | 41°F | 0" | -- |
| 1977 | 62°F | 50°F | 0" | -- |
| 1976 | 67°F | 42°F | 0" | -- |
| 1975 | 64°F | 37°F | 0" | -- |
| 1974 | 65°F | 44°F | 0.94" | -- |
| 1973 | 76°F | 51°F | 0" | -- |
| 1972 | 64°F | 42°F | 0" | -- |
| 1971 | 71°F | 44°F | 0" | -- |
Based on 55 years of data from NOAA station: SAN JOSE
Monthly Climate Averages
Historical temperature and precipitation averages for San Jose, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.