Weather on May 4
Boise, ID
55 Years of Data
Avg High
68°F
Avg Low
42°F
Warmest
2004
71°F avg
Coldest
1982
41°F avg
About This Date
May 4th in Boise, ID typically brings mild spring weather, with average highs around 68°F and lows near 42°F — a 26°F daily swing. Over 55 years of records, the warmest May 4th was in 2004 (71°F average), while the coldest was 1982 (41°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 31% of May 4th dates historically, with the wettest May 4th recording 1.57" of rain. The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
Planning for May 4th in Boise, ID? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 46° | 55° | 0.1" | — |
| 2024 | 70° | 46° | 58° | 0.79" | — |
| 2023 | 74° | 52° | 63° | — | — |
| 2022 | 72° | 39° | 55° | — | — |
| 2021 | 70° | 43° | 56° | — | — |
| 2020 | 68° | 36° | 52° | — | — |
| 2019 | 75° | 46° | 61° | — | — |
| 2018 | 82° | 53° | 68° | — | — |
| 2017 | 85° | 53° | 69° | — | — |
| 2016 | 85° | 57° | 71° | 0.03" | — |
| 2015 | 84° | 49° | 66° | — | — |
| 2014 | 69° | 50° | 60° | 0.03" | — |
| 2013 | 71° | 45° | 58° | — | — |
| 2012 | 61° | 41° | 51° | 0.74" | — |
| 2011 | 63° | 32° | 47° | — | — |
| 2010 | 52° | 31° | 41° | — | — |
| 2009 | 61° | 38° | 49° | 0.13" | — |
| 2008 | 74° | 44° | 59° | — | — |
| 2007 | 59° | 31° | 45° | — | — |
| 2006 | 66° | 37° | 52° | — | — |
| 2005 | 68° | 52° | 60° | 0.08" | — |
| 2004warmest | 89° | 53° | 71° | — | — |
| 2003 | 53° | 41° | 47° | 1.57" | — |
| 2002 | 69° | 37° | 53° | — | — |
| 2001 | 71° | 41° | 56° | — | — |
| 2000 | 67° | 47° | 57° | 0.18" | — |
| 1999 | 51° | 37° | 44° | 0.15" | — |
| 1998 | 72° | 51° | 61° | 0.03" | — |
| 1997 | 68° | 49° | 58° | — | — |
| 1996 | 55° | 31° | 43° | — | — |
| 1995 | 64° | 43° | 53° | — | — |
| 1994 | 71° | 51° | 61° | 0.15" | — |
| 1993 | 50° | 42° | 46° | 0.18" | — |
| 1992 | 88° | 47° | 67° | — | — |
| 1991 | 67° | 33° | 50° | — | — |
| 1990 | 78° | 40° | 59° | — | — |
| 1989 | 72° | 39° | 55° | — | — |
| 1988 | 61° | 31° | 46° | — | — |
| 1987 | 80° | 46° | 63° | — | — |
| 1986 | 56° | 34° | 45° | 0.18" | — |
| 1985 | 58° | 29° | 43° | — | — |
| 1984 | 53° | 32° | 43° | — | — |
| 1983 | 70° | 43° | 56° | 0.15" | — |
| 1982coldest | 56° | 26° | 41° | — | — |
| 1981 | 60° | 39° | 50° | — | — |
| 1980 | 81° | 52° | 66° | — | — |
| 1979 | 75° | 56° | 65° | — | — |
| 1978 | 51° | 33° | 42° | — | — |
| 1977 | 52° | 36° | 44° | 0.05" | — |
| 1976 | 65° | 36° | 50° | — | — |
| 1975 | 49° | 37° | 43° | — | — |
| 1974 | 74° | 34° | 54° | — | — |
| 1973 | 67° | 40° | 53° | — | — |
| 1972 | 76° | 45° | 60° | — | — |
| 1971 | 74° | 45° | 59° | 0.03" | — |
55 years of data from BOISE AIR TERMINAL