Weather on May 13
Boulder, CO
55 Years of Data
About This Date
May 13th in Boulder, CO typically brings pleasant spring weather, with average highs around 70°F and lows near 43°F — a 27°F daily swing. Over 56 years of records, the warmest May 13th was in 1988 (70°F average), while the coldest was 1983 (36°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 27% of May 13th dates historically, with the wettest May 13th recording 4.83" of rain. The last decade has been 5.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.7°F warmer on this date compared to 20-30 years ago.
Planning for May 13th in Boulder, CO? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 88° | 50° | 69° | — | — |
| 2025 | 86° | 54° | 70° | — | — |
| 2024 | 72° | 46° | 59° | — | — |
| 2023 | 61° | 45° | 53° | — | — |
| 2022 | 77° | 54° | 65° | — | — |
| 2021 | 73° | 39° | 56° | — | — |
| 2020 | 79° | 43° | 61° | — | — |
| 2019 | 77° | 45° | 61° | — | — |
| 2018 | 59° | 50° | 55° | — | — |
| 2017 | 83° | 43° | 63° | — | — |
| 2016 | 73° | 49° | 61° | — | — |
| 2015 | 66° | 46° | 56° | 0.13" | — |
| 2014 | 52° | 30° | 41° | — | — |
| 2013 | 84° | 55° | 70° | — | — |
| 2012 | 61° | 39° | 50° | 0.2" | — |
| 2011 | 64° | 41° | 53° | — | — |
| 2010 | 51° | 28° | 40° | 0.18" | — |
| 2009 | 66° | 40° | 53° | — | — |
| 2008 | 59° | 34° | 46° | 1.83" | — |
| 2007 | 81° | 51° | 66° | — | — |
| 2006 | 79° | 49° | 64° | — | — |
| 2005 | 63° | 39° | 51° | — | — |
| 2004 | 41° | 33° | 37° | 0.71" | — |
| 2003 | 75° | 44° | 60° | — | — |
| 2002 | 70° | 34° | 52° | — | — |
| 2001 | 84° | 50° | 67° | — | — |
| 2000 | 62° | 28° | 45° | — | — |
| 1999 | 76° | 41° | 58° | — | — |
| 1998 | 84° | 43° | 63° | — | — |
| 1997 | 76° | 44° | 60° | — | — |
| 1996 | 82° | 43° | 62° | — | — |
| 1995 | 66° | 42° | 54° | — | — |
| 1994 | 74° | 50° | 62° | 0.2" | — |
| 1993 | 77° | 45° | 61° | 0.03" | — |
| 1992 | 76° | 42° | 59° | 0.03" | — |
| 1991 | 80° | 46° | 63° | — | — |
| 1990 | 74° | 41° | 57° | — | — |
| 1989 | 66° | 42° | 54° | 0.56" | — |
| 1988warmest | 89° | 52° | 70° | — | — |
| 1987 | 81° | 58° | 69° | — | — |
| 1986 | 75° | 37° | 56° | — | — |
| 1985 | 57° | 37° | 47° | 0.41" | — |
| 1984 | 80° | 52° | 66° | — | — |
| 1983coldest | 38° | 34° | 36° | 0.99" | — |
| 1982 | 52° | 34° | 43° | 4.83" | — |
| 1981 | 55° | 36° | 45° | 0.89" | — |
| 1980 | 60° | 39° | 50° | — | — |
| 1979 | 63° | 38° | 50° | 0.03" | — |
| 1978 | 81° | 38° | 59° | — | — |
| 1977 | 75° | 47° | 61° | — | — |
| 1976 | 74° | 39° | 56° | — | — |
| 1975 | 65° | 36° | 50° | 0.97" | — |
| 1974 | 83° | 54° | 68° | — | — |
| 1973 | 59° | 41° | 50° | — | — |
| 1972 | 62° | 40° | 51° | — | — |
| 1971 | 72° | 39° | 55° | — | — |
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.