Dumbarton Weather in June
Average highs run from 81°F on June 1 to 88°F on June 30, and lows from 59°F to 67°F. Normal precipitation for the month is 4.14 in over about 12 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
- 85°F
- Average low
- 63°F
- Precipitation
- 4.14 in
- Record high
- 102°FJun 26, 2024
- Record low
- 41°FJun 5, 1997
- Chance of a freeze
- 0%
- Days of 90°F or more
- 8.9
- Daylight
- 14 h 36 min to 14 h 43 min
- Cloud cover
- 58%
- Humidity
- 71%
- Dew point
- 64°F
- Wind
- 4.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jun 1 | 81°F | 59°F | 94°F 2011 | 46°F 2025 | 40% | 0% |
| Jun 2 | 81°F | 60°F | 95°F 2002 | 48°F 2003 | 40% | 0% |
| Jun 3 | 81°F | 60°F | 92°F 2020 | 49°F 2026 | 40% | 0% |
| Jun 4 | 82°F | 60°F | 95°F 2020 | 46°F 1997 | 40% | 0% |
| Jun 5 | 82°F | 61°F | 97°F 2002 | 41°F 1997 | 40% | 0% |
| Jun 6 | 82°F | 61°F | 95°F 2021 | 43°F 1997 | 40% | 0% |
| Jun 7 | 83°F | 61°F | 100°F 2008 | 48°F 1998 | 40% | 0% |
| Jun 8 | 83°F | 61°F | 98°F 1999 | 44°F 1997 | 40% | 0% |
| Jun 9 | 83°F | 62°F | 99°F 1999 | 46°F 1997 | 39% | 0% |
| Jun 10 | 83°F | 62°F | 99°F 2008 | 49°F 1997 | 39% | 0% |
| Jun 11 | 84°F | 62°F | 98°F 2026 | 52°F 1997 | 39% | 0% |
| Jun 12 | 84°F | 62°F | 100°F 2026 | 51°F 1999 | 39% | 0% |
| Jun 13 | 84°F | 63°F | 96°F 2010 | 50°F 2006 | 39% | 0% |
| Jun 14 | 85°F | 63°F | 94°F 2005 | 54°F 2019 | 39% | 0% |
| Jun 15 | 85°F | 63°F | 94°F 2015 | 53°F 2019 | 38% | 0% |
| Jun 16 | 85°F | 64°F | 96°F 2015 | 51°F 1997 | 38% | 0% |
| Jun 17 | 85°F | 64°F | 96°F 2022 | 50°F 2012 | 38% | 0% |
| Jun 18 | 86°F | 64°F | 96°F 2026 | 52°F 1999 | 38% | 0% |
| Jun 19 | 86°F | 64°F | 98°F 2007 | 49°F 1999 | 38% | 0% |
| Jun 20 | 86°F | 65°F | 97°F 2010 | 51°F 2022 | 38% | 0% |
| Jun 21 | 86°F | 65°F | 96°F 2012 | 51°F 2005 | 38% | 0% |
| Jun 22 | 87°F | 65°F | 100°F 2024 | 55°F 1999 | 37% | 0% |
| Jun 23 | 87°F | 65°F | 100°F 2024 | 51°F 1999 | 37% | 0% |
| Jun 24 | 87°F | 65°F | 101°F 2010 | 49°F 1999 | 37% | 0% |
| Jun 25 | 87°F | 66°F | 99°F 2002 | 54°F 2021 | 37% | 0% |
| Jun 26 | 88°F | 66°F | 102°F 2024 | 53°F 2012 | 37% | 0% |
| Jun 27 | 88°F | 66°F | 102°F 2010 | 54°F 2004 | 37% | 0% |
| Jun 28 | 88°F | 66°F | 101°F 2010 | 53°F 2017 | 37% | 0% |
| Jun 29 | 88°F | 66°F | 101°F 2012 | 54°F 1997 | 37% | 0% |
| Jun 30 | 88°F | 67°F | 99°F 2024 | 60°F 2000 | 37% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- June 1
- sunrise 5:50 AM, sunset 8:26 PM
- June 30
- sunrise 5:52 AM, sunset 8:35 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093775 (Ashland Hanover CO Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00093775, 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.