Weather on May 22
Boulder, CO
55 Years of Data
Avg High
72°F
Avg Low
45°F
Warmest
2012
71°F avg
Coldest
2019
40°F avg
About This Date
May 22nd in Boulder, CO typically brings pleasant spring weather, with average highs around 72°F and lows near 45°F — a 27°F daily swing. Over 55 years of records, the warmest May 22nd was in 2012 (71°F average), while the coldest was 2019 (40°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 22nd dates historically, with the wettest May 22nd recording 2.29" of rain. The last decade has been 6.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.5°F cooler on this date compared to 20-30 years ago.
Planning for May 22nd in Boulder, CO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 45° | 58° | — | — |
| 2024 | 73° | 39° | 56° | — | — |
| 2023 | 75° | 52° | 63° | — | — |
| 2022 | 59° | 36° | 47° | — | — |
| 2021 | 61° | 45° | 53° | 0.13" | — |
| 2020 | 81° | 46° | 63° | — | — |
| 2019coldest | 46° | 34° | 40° | — | — |
| 2018 | 75° | 50° | 63° | — | — |
| 2017 | 69° | 38° | 53° | 1.37" | — |
| 2016 | 73° | 43° | 58° | — | — |
| 2015 | 52° | 45° | 48° | 0.64" | — |
| 2014 | 70° | 47° | 58° | 0.41" | — |
| 2013 | 75° | 40° | 57° | — | — |
| 2012warmest | 89° | 53° | 71° | — | — |
| 2011 | 77° | 50° | 64° | — | — |
| 2010 | 86° | 51° | 69° | — | — |
| 2009 | 68° | 43° | 55° | — | — |
| 2008 | 80° | 54° | 67° | 0.15" | — |
| 2007 | 70° | 46° | 58° | — | — |
| 2006 | 84° | 51° | 68° | 0.03" | — |
| 2005 | 86° | 51° | 69° | — | — |
| 2004 | 75° | 50° | 63° | 0.33" | — |
| 2003 | 78° | 46° | 62° | — | — |
| 2002 | 78° | 42° | 60° | — | — |
| 2001 | 75° | 37° | 56° | — | — |
| 2000 | 84° | 49° | 66° | — | — |
| 1999 | 79° | 48° | 63° | 0.03" | — |
| 1998 | 74° | 51° | 62° | 1.17" | — |
| 1997 | 65° | 49° | 57° | 2.29" | — |
| 1996 | 83° | 40° | 61° | — | — |
| 1995 | 65° | 46° | 55° | — | — |
| 1994 | 75° | 45° | 60° | — | — |
| 1993 | 75° | 49° | 62° | — | — |
| 1992 | 65° | 43° | 54° | 0.46" | — |
| 1991 | 71° | 52° | 61° | — | — |
| 1990 | 80° | 48° | 64° | — | — |
| 1989 | 85° | 45° | 65° | — | — |
| 1988 | 60° | 47° | 53° | — | — |
| 1987 | 67° | 37° | 52° | 0.08" | — |
| 1986 | 77° | 47° | 62° | — | — |
| 1985 | 67° | 46° | 56° | 1.14" | — |
| 1984 | 71° | 46° | 59° | 0.2" | — |
| 1983 | 65° | 46° | 55° | 0.03" | — |
| 1982 | 75° | 44° | 60° | — | — |
| 1981 | 70° | 41° | 55° | — | — |
| 1980 | 80° | 50° | 65° | — | — |
| 1979 | 75° | 45° | 60° | — | — |
| 1978 | 82° | 43° | 62° | — | — |
| 1977 | 73° | 37° | 55° | — | — |
| 1976 | 56° | 46° | 51° | 2.13" | — |
| 1975 | 49° | 41° | 45° | 0.43" | — |
| 1974 | 71° | 36° | 53° | — | — |
| 1973 | 70° | 47° | 58° | 0.48" | — |
| 1972 | 77° | 40° | 58° | 0.03" | — |
| 1971 | 73° | 47° | 60° | — | — |
55 years of data from BOULDER MUNI AP