Weather on May 1
Boise, ID
55 Years of Data
Avg High
68°F
Avg Low
41°F
Warmest
1985
69°F avg
Coldest
1988
42°F avg
About This Date
May 1st in Boise, ID typically brings mild spring weather, with average highs around 68°F and lows near 41°F — a 27°F daily swing. Over 55 years of records, the warmest May 1st was in 1985 (69°F average), while the coldest was 1988 (42°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 16% of May 1st dates historically, with the wettest May 1st recording 2.34" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for May 1st in Boise, ID? Great weather for outdoor activities.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 41° | 57° | — | — |
| 2024 | 56° | 36° | 46° | — | — |
| 2023 | 81° | 57° | 69° | — | — |
| 2022 | 66° | 43° | 54° | — | — |
| 2021 | 75° | 51° | 63° | 0.13" | — |
| 2020 | 70° | 43° | 56° | — | — |
| 2019 | 61° | 31° | 46° | — | — |
| 2018 | 65° | 38° | 51° | — | — |
| 2017 | 60° | 38° | 49° | — | — |
| 2016 | 71° | 40° | 55° | — | — |
| 2015 | 78° | 44° | 61° | — | — |
| 2014 | 78° | 45° | 61° | — | — |
| 2013 | 60° | 30° | 45° | — | — |
| 2012 | 60° | 42° | 51° | — | — |
| 2011 | 61° | 33° | 47° | — | — |
| 2010 | 56° | 33° | 44° | — | — |
| 2009 | 61° | 40° | 50° | — | — |
| 2008 | 57° | 31° | 44° | — | — |
| 2007 | 83° | 53° | 68° | — | — |
| 2006 | 68° | 41° | 55° | — | — |
| 2005 | 69° | 42° | 56° | — | — |
| 2004 | 81° | 48° | 64° | — | — |
| 2003 | 63° | 39° | 51° | — | — |
| 2002 | 70° | 41° | 55° | — | — |
| 2001 | 54° | 37° | 45° | — | — |
| 2000 | 84° | 49° | 66° | — | — |
| 1999 | 64° | 48° | 56° | 0.33" | — |
| 1998 | 85° | 52° | 68° | — | — |
| 1997 | 53° | 34° | 43° | — | — |
| 1996 | 67° | 46° | 56° | — | — |
| 1995 | 58° | 46° | 52° | 1.12" | — |
| 1994 | 63° | 33° | 48° | — | — |
| 1993 | 67° | 34° | 50° | 0.03" | — |
| 1992 | 67° | 37° | 52° | — | — |
| 1991 | 69° | 42° | 56° | — | — |
| 1990 | 62° | 30° | 46° | — | — |
| 1989 | 71° | 46° | 59° | — | — |
| 1988coldest | 54° | 31° | 42° | — | — |
| 1987 | 61° | 43° | 52° | 0.03" | — |
| 1986 | 73° | 40° | 56° | — | — |
| 1985warmest | 88° | 50° | 69° | — | — |
| 1984 | 57° | 35° | 46° | 0.2" | — |
| 1983 | 52° | 46° | 49° | 2.34" | — |
| 1982 | 77° | 47° | 62° | — | — |
| 1981 | 80° | 54° | 67° | 0.05" | — |
| 1980 | 75° | 39° | 57° | — | — |
| 1979 | 71° | 50° | 61° | — | — |
| 1978 | 68° | 40° | 54° | — | — |
| 1977 | 69° | 46° | 58° | 0.41" | — |
| 1976 | 79° | 47° | 63° | — | — |
| 1975 | 64° | 38° | 51° | — | — |
| 1974 | 70° | 44° | 57° | — | — |
| 1973 | 63° | 34° | 48° | — | — |
| 1972 | 63° | 32° | 47° | — | — |
| 1971 | 83° | 46° | 64° | — | — |
55 years of data from BOISE AIR TERMINAL