Napa Weather in June
Average highs run from 80°F on June 1 to 84°F on June 30, and lows from 52°F to 55°F. Normal precipitation for the month is 0.29 in over about 1 wet days.
June day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
June at a glance
- Average high
- 82°F
- Average low
- 54°F
- Precipitation
- 0.29 in
- Record high
- 110°FJun 14, 2000
- Record low
- 36°FJun 6, 2005
- Chance of a freeze
- 0%
- Days of 90°F or more
- 6.0
- Daylight
- 14 h 40 min to 14 h 48 min
- Cloud cover
- 30%
- Humidity
- 57%
- Dew point
- 48°F
- Wind
- 7.2 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jun 1 | 80°F | 52°F | 91°F 2013 | 40°F 2008 | 7% |
| Jun 2 | 80°F | 53°F | 91°F 2018 | 40°F 2008 | 7% |
| Jun 3 | 80°F | 53°F | 94°F 2016 | 39°F 2001 | 7% |
| Jun 4 | 80°F | 53°F | 97°F 2024 | 41°F 2001 | 6% |
| Jun 5 | 81°F | 53°F | 95°F 2002 | 43°F 2001 | 6% |
| Jun 6 | 81°F | 53°F | 89°F 2001 | 36°F 2005 | 6% |
| Jun 7 | 81°F | 53°F | 93°F 2001 | 37°F 1999 | 6% |
| Jun 8 | 81°F | 53°F | 99°F 2015 | 36°F 1999 | 5% |
| Jun 9 | 81°F | 53°F | 94°F 2008 | 40°F 2012 | 5% |
| Jun 10 | 82°F | 53°F | 98°F 2019 | 39°F 2018 | 5% |
| Jun 11 | 82°F | 53°F | 100°F 2019 | 43°F 2000 | 5% |
| Jun 12 | 82°F | 54°F | 94°F 2008 | 43°F 2009 | 4% |
| Jun 13 | 82°F | 54°F | 98°F 2000 | 42°F 2014 | 4% |
| Jun 14 | 82°F | 54°F | 110°F 2000 | 40°F 2003 | 4% |
| Jun 15 | 83°F | 54°F | 93°F 2004 | 41°F 2002 | 4% |
| Jun 16 | 83°F | 54°F | 98°F 2012 | 38°F 2002 | 4% |
| Jun 17 | 83°F | 54°F | 100°F 2021 | 43°F 2010 | 3% |
| Jun 18 | 83°F | 54°F | 103°F 2017 | 43°F 2014 | 3% |
| Jun 19 | 83°F | 54°F | 96°F 2001 | 43°F 2005 | 3% |
| Jun 20 | 83°F | 54°F | 103°F 2008 | 42°F 2010 | 3% |
| Jun 21 | 83°F | 54°F | 103°F 2022 | 44°F 2019 | 3% |
| Jun 22 | 84°F | 54°F | 97°F 2006 | 43°F 2005 | 3% |
| Jun 23 | 84°F | 54°F | 96°F 2018 | 44°F 2003 | 3% |
| Jun 24 | 84°F | 54°F | 88°F 2003 | 44°F 2007 | 3% |
| Jun 25 | 84°F | 55°F | 96°F 2003 | 44°F 2004 | 2% |
| Jun 26 | 84°F | 55°F | 101°F 2003 | 41°F 1998 | 2% |
| Jun 27 | 84°F | 55°F | 101°F 2003 | 46°F 2012 | 2% |
| Jun 28 | 84°F | 55°F | 94°F 2013 | 47°F 2012 | 2% |
| Jun 29 | 84°F | 55°F | 99°F 2013 | 45°F 2019 | 2% |
| Jun 30 | 84°F | 55°F | 94°F 2002 | 47°F 2007 | 2% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- June 1
- sunrise 5:47 AM, sunset 8:27 PM
- June 30
- sunrise 5:49 AM, sunset 8:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046074 (Napa State Hospital), public domain. Records: NOAA GHCN-Daily, station USW00093227, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.