Weather on March 12
Boulder, CO
55 Years of Data
Avg High
56°F
Avg Low
31°F
Warmest
2005
59°F avg
Coldest
1993
16°F avg
About This Date
March 12th in Boulder, CO typically brings cool spring weather, with average highs around 56°F and lows near 31°F — a 25°F daily swing. Over 56 years of records, the warmest March 12th was in 2005 (59°F average), while the coldest was 1993 (16°F) — a 43°F range across recorded history. Precipitation has occurred on 20% of recorded March 12th dates, with snow falling 16% of the time (heaviest snowfall: 7.1"). The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
Planning for March 12th in Boulder, CO? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 66° | 34° | 50° | — | — |
| 2025 | 66° | 45° | 55° | — | — |
| 2024 | 59° | 36° | 47° | — | — |
| 2023 | 41° | 25° | 33° | — | — |
| 2022 | 54° | 19° | 37° | — | — |
| 2021 | 41° | 32° | 37° | 0.08" | — |
| 2020 | 54° | 34° | 44° | — | — |
| 2019 | 57° | 32° | 45° | — | — |
| 2018 | 55° | 28° | 42° | — | — |
| 2017 | 62° | 32° | 47° | — | — |
| 2016 | 69° | 36° | 52° | — | — |
| 2015 | 65° | 41° | 53° | — | — |
| 2014 | 52° | 18° | 35° | — | — |
| 2013 | 35° | 24° | 30° | 0.86" | 4.4" |
| 2012 | 68° | 43° | 55° | — | — |
| 2011 | 62° | 28° | 45° | — | — |
| 2010 | 57° | 29° | 43° | — | — |
| 2009 | 48° | 15° | 32° | — | — |
| 2008 | 62° | 27° | 44° | — | — |
| 2007 | 73° | 39° | 56° | — | — |
| 2006 | 31° | 23° | 27° | 0.46" | 2.5" |
| 2005warmest | 66° | 52° | 59° | — | — |
| 2004 | 66° | 29° | 47° | — | — |
| 2003 | 67° | 44° | 55° | — | — |
| 2002 | 70° | 38° | 54° | — | — |
| 2001 | 50° | 18° | 34° | 0.03" | 0.2" |
| 2000 | 50° | 32° | 41° | — | — |
| 1999 | 39° | 27° | 33° | 0.86" | 3.7" |
| 1998 | 55° | 17° | 36° | — | — |
| 1997 | 72° | 40° | 56° | — | — |
| 1996 | 62° | 37° | 50° | — | — |
| 1995 | 66° | 49° | 57° | — | — |
| 1994 | 56° | 34° | 45° | 0.13" | 0.1" |
| 1993coldest | 24° | 9° | 16° | 0.86" | 7.1" |
| 1992 | 55° | 34° | 44° | — | — |
| 1991 | 56° | 31° | 43° | 0.03" | — |
| 1990 | 63° | 28° | 45° | — | — |
| 1989 | 68° | 45° | 56° | — | — |
| 1988 | 33° | 19° | 26° | 0.03" | 0.4" |
| 1987 | 63° | 29° | 46° | — | — |
| 1986 | 49° | 30° | 39° | 0.15" | — |
| 1985 | 49° | 33° | 41° | — | — |
| 1984 | 57° | 27° | 42° | — | — |
| 1983 | 68° | 40° | 54° | — | — |
| 1982 | 64° | 43° | 53° | — | — |
| 1981 | 57° | 27° | 42° | — | — |
| 1980 | 49° | 27° | 38° | — | — |
| 1979 | 68° | 34° | 51° | — | — |
| 1978 | 52° | 26° | 39° | — | — |
| 1977 | 57° | 27° | 42° | — | — |
| 1976 | 50° | 15° | 33° | — | 0.4" |
| 1975 | 34° | 17° | 25° | 0.23" | 2.3" |
| 1974 | 60° | 31° | 45° | — | — |
| 1973 | 60° | 30° | 45° | — | — |
| 1972 | 68° | 41° | 55° | — | — |
| 1971 | 61° | 41° | 51° | — | — |
56 years of data from BOULDER MUNI AP