Weather on June 23
Boulder, CO
55 Years of Data
About This Date
June 23rd in Boulder, CO typically brings warm summer weather, with average highs around 86°F and lows near 55°F — a 31°F daily swing. Over 55 years of records, the warmest June 23rd was in 2012 (83°F average), while the coldest was 2019 (53°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 22% of June 23rd dates historically, with the wettest June 23rd recording 0.94" of rain. The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for June 23rd in Boulder, CO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 57° | 63° | — | — |
| 2024 | 97° | 64° | 80° | — | — |
| 2023 | 79° | 59° | 69° | — | — |
| 2022 | 91° | 57° | 74° | — | — |
| 2021 | 97° | 63° | 80° | — | — |
| 2020 | 82° | 55° | 69° | — | — |
| 2019coldest | 64° | 43° | 53° | — | — |
| 2018 | 84° | 55° | 70° | — | — |
| 2017 | 75° | 45° | 60° | 0.58" | — |
| 2016 | 89° | 56° | 72° | 0.2" | — |
| 2015 | 86° | 53° | 70° | — | — |
| 2014 | 76° | 48° | 62° | 0.05" | — |
| 2013 | 86° | 51° | 69° | — | — |
| 2012warmest | 102° | 64° | 83° | — | — |
| 2011 | 86° | 52° | 69° | — | — |
| 2010 | 85° | 48° | 66° | — | — |
| 2009 | 85° | 53° | 69° | 0.05" | — |
| 2008 | 82° | 55° | 69° | — | — |
| 2007 | 92° | 49° | 70° | — | — |
| 2006 | 91° | 48° | 70° | — | — |
| 2005 | 89° | 63° | 76° | 0.94" | — |
| 2004 | 80° | 47° | 63° | — | — |
| 2003 | 76° | 52° | 64° | 0.56" | — |
| 2002 | 92° | 58° | 75° | — | — |
| 2001 | 95° | 55° | 75° | — | — |
| 2000 | 92° | 62° | 77° | — | — |
| 1999 | 87° | 51° | 69° | — | — |
| 1998 | 86° | 53° | 70° | — | — |
| 1997 | 87° | 57° | 72° | — | — |
| 1996 | 82° | 49° | 65° | — | — |
| 1995 | 77° | 51° | 64° | — | — |
| 1994 | 85° | 53° | 69° | — | — |
| 1993 | 84° | 53° | 69° | — | — |
| 1992 | 84° | 56° | 70° | — | — |
| 1991 | 84° | 54° | 69° | — | — |
| 1990 | 93° | 50° | 72° | — | — |
| 1989 | 68° | 49° | 58° | — | — |
| 1988 | 92° | 61° | 76° | — | — |
| 1987 | 79° | 51° | 65° | 0.03" | — |
| 1986 | 89° | 54° | 71° | — | — |
| 1985 | 90° | 69° | 79° | — | — |
| 1984 | 80° | 55° | 68° | 0.2" | — |
| 1983 | 84° | 55° | 70° | 0.15" | — |
| 1982 | 83° | 52° | 67° | — | — |
| 1981 | 96° | 60° | 78° | — | — |
| 1980 | 99° | 55° | 77° | — | — |
| 1979 | 89° | 60° | 75° | — | — |
| 1978 | 93° | 60° | 77° | 0.1" | — |
| 1977 | 84° | 56° | 70° | — | — |
| 1976 | 79° | 52° | 65° | 0.36" | — |
| 1975 | 83° | 49° | 66° | — | — |
| 1974 | 80° | 52° | 66° | — | — |
| 1973 | 90° | 58° | 74° | — | — |
| 1972 | 83° | 54° | 68° | 0.05" | — |
| 1971 | 97° | 58° | 77° | — | — |
Boulder, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Boulder, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Boulder, CO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Boulder, CO
Boulder, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.