Weather on May 16
Boulder, CO
55 Years of Data
Avg High
72°F
Avg Low
45°F
Warmest
1996
73°F avg
Coldest
1986
42°F avg
About This Date
May 16th 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 16th was in 1996 (73°F average), while the coldest was 1986 (42°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 33% of May 16th dates historically, with the wettest May 16th recording 3.1" of rain. The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
Planning for May 16th in Boulder, CO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 70° | 45° | 57° | — | — |
| 2024 | 73° | 45° | 59° | — | — |
| 2023 | 77° | 45° | 61° | — | — |
| 2022 | 86° | 48° | 67° | — | — |
| 2021 | 59° | 50° | 55° | — | — |
| 2020 | 70° | 50° | 60° | — | — |
| 2019 | 82° | 55° | 69° | — | — |
| 2018 | 81° | 50° | 65° | — | — |
| 2017 | 71° | 49° | 60° | 0.1" | — |
| 2016 | 50° | 41° | 46° | 1.47" | — |
| 2015 | 63° | 38° | 50° | 0.03" | — |
| 2014 | 62° | 41° | 52° | 0.05" | — |
| 2013 | 80° | 51° | 66° | — | — |
| 2012 | 83° | 44° | 63° | — | — |
| 2011 | 62° | 41° | 52° | — | — |
| 2010 | 67° | 35° | 51° | — | — |
| 2009 | 64° | 40° | 52° | — | — |
| 2008 | 71° | 39° | 55° | — | — |
| 2007 | 72° | 41° | 56° | — | — |
| 2006 | 79° | 40° | 59° | — | — |
| 2005 | 78° | 50° | 64° | — | — |
| 2004 | 78° | 43° | 60° | — | — |
| 2003 | 76° | 45° | 60° | 1.91" | — |
| 2002 | 65° | 42° | 53° | 0.61" | — |
| 2001 | 78° | 63° | 70° | — | — |
| 2000 | 80° | 44° | 62° | — | — |
| 1999 | 67° | 42° | 54° | 0.53" | — |
| 1998 | 74° | 35° | 54° | — | — |
| 1997 | 82° | 50° | 66° | — | — |
| 1996warmest | 93° | 53° | 73° | — | — |
| 1995 | 77° | 49° | 63° | — | — |
| 1994 | 87° | 44° | 66° | — | — |
| 1993 | 65° | 49° | 57° | 0.1" | — |
| 1992 | 80° | 48° | 64° | — | — |
| 1991 | 61° | 43° | 52° | 2.51" | — |
| 1990 | 60° | 33° | 47° | 0.48" | — |
| 1989 | 65° | 41° | 53° | 0.03" | — |
| 1988 | 89° | 45° | 67° | — | — |
| 1987 | 78° | 49° | 63° | — | — |
| 1986coldest | 47° | 37° | 42° | 3.1" | — |
| 1985 | 69° | 48° | 59° | — | — |
| 1984 | 80° | 50° | 65° | — | — |
| 1983 | 57° | 37° | 47° | 0.33" | — |
| 1982 | 64° | 40° | 52° | 0.1" | — |
| 1981 | 58° | 41° | 49° | 0.46" | — |
| 1980 | 56° | 40° | 48° | 1.07" | — |
| 1979 | 80° | 45° | 62° | — | — |
| 1978 | 89° | 53° | 71° | — | — |
| 1977 | 73° | 44° | 59° | — | — |
| 1976 | 53° | 37° | 45° | 0.2" | — |
| 1975 | 82° | 49° | 65° | — | — |
| 1974 | 74° | 39° | 56° | — | — |
| 1973 | 74° | 47° | 60° | — | — |
| 1972 | 82° | 49° | 65° | — | — |
| 1971 | 80° | 47° | 63° | 0.03" | — |
55 years of data from BOULDER MUNI AP