Weather on March 23
Boulder, CO
55 Years of Data
Avg High
58°F
Avg Low
31°F
Warmest
2004
62°F avg
Coldest
1974
16°F avg
About This Date
March 23rd in Boulder, CO typically brings cool spring weather, with average highs around 58°F and lows near 31°F — a 27°F daily swing. Over 56 years of records, the warmest March 23rd was in 2004 (62°F average), while the coldest was 1974 (16°F) — a 46°F range across recorded history. Precipitation has occurred on 27% of recorded March 23rd dates, with snow falling 16% of the time (heaviest snowfall: 16.4"). The last decade has been 2.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.4°F cooler on this date compared to 20-30 years ago.
Planning for March 23rd in Boulder, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 70° | 41° | 55° | — | — |
| 2025 | 61° | 30° | 46° | — | — |
| 2024 | 61° | 34° | 47° | — | — |
| 2023 | 52° | 28° | 40° | — | — |
| 2022 | 57° | 28° | 43° | — | — |
| 2021 | 43° | 28° | 36° | — | — |
| 2020 | 55° | 32° | 44° | — | — |
| 2019 | 54° | 34° | 44° | — | — |
| 2018 | 68° | 45° | 56° | — | — |
| 2017 | 75° | 43° | 59° | — | — |
| 2016 | 64° | 31° | 47° | 6.1" | 16.4" |
| 2015 | 68° | 36° | 52° | — | — |
| 2014 | 59° | 22° | 40° | 0.05" | 0.1" |
| 2013 | 29° | 18° | 23° | 2.08" | 10.6" |
| 2012 | 76° | 36° | 56° | — | — |
| 2011 | 59° | 35° | 47° | — | — |
| 2010 | 56° | 31° | 43° | 1.78" | 3.1" |
| 2009 | 71° | 36° | 53° | 0.43" | — |
| 2008 | 51° | 17° | 34° | 0.3" | 1.7" |
| 2007 | 66° | 41° | 54° | 0.43" | — |
| 2006 | 46° | 19° | 33° | 0.08" | 0.4" |
| 2005 | 50° | 30° | 40° | 0.03" | — |
| 2004warmest | 75° | 48° | 62° | — | — |
| 2003 | 67° | 36° | 51° | — | — |
| 2002 | 67° | 32° | 49° | — | — |
| 2001 | 62° | 35° | 49° | — | — |
| 2000 | 64° | 29° | 46° | — | — |
| 1999 | 63° | 30° | 46° | — | — |
| 1998 | 69° | 44° | 57° | — | — |
| 1997 | 66° | 30° | 48° | — | — |
| 1996 | 59° | 32° | 46° | 0.05" | — |
| 1995 | 61° | 30° | 45° | — | — |
| 1994 | 55° | 35° | 45° | — | — |
| 1993 | 71° | 33° | 52° | — | — |
| 1992 | 55° | 28° | 42° | 0.03" | — |
| 1991 | 60° | 32° | 46° | — | — |
| 1990 | 67° | 15° | 41° | — | — |
| 1989 | 63° | 33° | 48° | — | — |
| 1988 | 70° | 33° | 51° | — | — |
| 1987 | 44° | 24° | 34° | 0.05" | 0.3" |
| 1986 | 69° | 33° | 51° | — | — |
| 1985 | 56° | 35° | 45° | — | — |
| 1984 | 45° | 26° | 35° | 0.08" | 0.5" |
| 1983 | 36° | 22° | 29° | — | — |
| 1982 | 60° | 33° | 47° | — | — |
| 1981 | 62° | 36° | 49° | — | — |
| 1980 | 39° | 31° | 35° | — | — |
| 1979 | 43° | 28° | 35° | — | — |
| 1978 | 46° | 28° | 37° | 1.12" | — |
| 1977 | 64° | 26° | 45° | — | — |
| 1976 | 69° | 40° | 54° | — | — |
| 1975 | 59° | 24° | 42° | — | — |
| 1974coldest | 24° | 8° | 16° | 1.32" | 6.9" |
| 1973 | 51° | 28° | 40° | — | — |
| 1972 | 69° | 36° | 52° | — | — |
| 1971 | 49° | 26° | 37° | — | — |
56 years of data from BOULDER MUNI AP