Boulder Weather in June
Average highs run from 68°F on June 1 to 77°F on June 30, and lows from 40°F to 45°F. Normal precipitation for the month is 2.30 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
- 72°F
- Average low
- 43°F
- Precipitation
- 2.30 in
- Record high
- 97°FJun 26, 1919
- Record low
- 22°FJun 6, 1916
- Chance of a freeze
- 72%
- Days of 90°F or more
- 0.7
- Daylight
- 15 h 33 min to 15 h 44 min
- Cloud cover
- 62%
- Humidity
- 61%
- Dew point
- 41°F
- Wind
- 5.8 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 | 68°F | 40°F | 86°F 1914 | 25°F 1934 | 42% |
| Jun 2 | 68°F | 40°F | 86°F 2021 | 25°F 1951 | 42% |
| Jun 3 | 68°F | 40°F | 90°F 2021 | 23°F 1950 | 42% |
| Jun 4 | 69°F | 40°F | 88°F 1969 | 27°F 1901 | 42% |
| Jun 5 | 69°F | 41°F | 87°F 1969 | 26°F 1901 | 42% |
| Jun 6 | 69°F | 41°F | 89°F 1977 | 22°F 1916 | 42% |
| Jun 7 | 69°F | 41°F | 90°F 2000 | 24°F 1924 | 42% |
| Jun 8 | 70°F | 41°F | 89°F 1996 | 28°F 1950 | 42% |
| Jun 9 | 70°F | 41°F | 89°F 1918 | 27°F 1994 | 42% |
| Jun 10 | 70°F | 42°F | 89°F 1918 | 27°F 1975 | 41% |
| Jun 11 | 70°F | 42°F | 89°F 1918 | 28°F 2017 | 41% |
| Jun 12 | 71°F | 42°F | 91°F 1918 | 28°F 2018 | 41% |
| Jun 13 | 71°F | 42°F | 90°F 1918 | 28°F 1952 | 41% |
| Jun 14 | 71°F | 42°F | 94°F 2021 | 29°F 1968 | 40% |
| Jun 15 | 72°F | 42°F | 90°F 1933 | 26°F 1991 | 40% |
| Jun 16 | 72°F | 43°F | 89°F 1930 | 28°F 2004 | 40% |
| Jun 17 | 72°F | 43°F | 91°F 1974 | 28°F 1954 | 39% |
| Jun 18 | 73°F | 43°F | 92°F 1974 | 27°F 1954 | 39% |
| Jun 19 | 73°F | 43°F | 93°F 1974 | 29°F 1996 | 38% |
| Jun 20 | 73°F | 43°F | 95°F 1919 | 27°F 1978 | 38% |
| Jun 21 | 74°F | 43°F | 94°F 1900 | 29°F 1942 | 37% |
| Jun 22 | 74°F | 44°F | 94°F 1919 | 31°F 1916 | 37% |
| Jun 23 | 74°F | 44°F | 92°F 1919 | 28°F 2003 | 36% |
| Jun 24 | 75°F | 44°F | 92°F 1974 | 28°F 1920 | 36% |
| Jun 25 | 75°F | 44°F | 94°F 1988 | 29°F 1937 | 35% |
| Jun 26 | 75°F | 45°F | 97°F 1919 | 28°F 1953 | 35% |
| Jun 27 | 76°F | 45°F | 94°F 2015 | 31°F 1949 | 35% |
| Jun 28 | 76°F | 45°F | 95°F 2015 | 31°F 1947 | 34% |
| Jun 29 | 77°F | 45°F | 93°F 1937 | 29°F 1947 | 34% |
| Jun 30 | 77°F | 45°F | 92°F 1990 | 28°F 1933 | 33% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (MDT).
- June 1
- sunrise 5:40 AM, sunset 9:13 PM
- June 30
- sunrise 5:40 AM, sunset 9:24 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00241008 (Boulder), public domain. Records: NOAA GHCN-Daily, station USW00024135, 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.