Weather on May 8
Boise, ID
55 Years of Data
Avg High
69°F
Avg Low
43°F
Warmest
1987
77°F avg
Coldest
1979
42°F avg
About This Date
May 8th in Boise, ID typically brings mild spring weather, with average highs around 69°F and lows near 43°F — a 26°F daily swing. Over 55 years of records, the warmest May 8th was in 1987 (77°F average), while the coldest was 1979 (42°F) — a 35°F range across recorded history. Precipitation has occurred on 40% of recorded May 8th dates, with snow falling 2% of the time. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for May 8th in Boise, ID? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 53° | 66° | — | — |
| 2024 | 63° | 38° | 50° | — | — |
| 2023 | 67° | 44° | 55° | 0.56" | — |
| 2022 | 53° | 34° | 43° | 0.08" | — |
| 2021 | 60° | 37° | 49° | — | — |
| 2020 | 75° | 43° | 59° | — | — |
| 2019 | 76° | 48° | 62° | — | — |
| 2018 | 85° | 51° | 68° | — | — |
| 2017 | 67° | 40° | 53° | — | — |
| 2016 | 79° | 52° | 65° | — | — |
| 2015 | 73° | 47° | 60° | 0.05" | — |
| 2014 | 69° | 40° | 54° | 0.38" | — |
| 2013 | 79° | 52° | 65° | 0.03" | — |
| 2012 | 80° | 46° | 63° | — | — |
| 2011 | 57° | 44° | 51° | 0.41" | — |
| 2010 | 65° | 43° | 54° | — | — |
| 2009 | 61° | 33° | 47° | — | — |
| 2008 | 65° | 42° | 53° | — | — |
| 2007 | 85° | 47° | 66° | — | — |
| 2006 | 61° | 44° | 52° | 0.3" | — |
| 2005 | 71° | 46° | 59° | 0.15" | — |
| 2004 | 73° | 57° | 65° | — | — |
| 2003 | 60° | 37° | 49° | — | — |
| 2002 | 55° | 28° | 42° | — | — |
| 2001 | 79° | 49° | 64° | — | — |
| 2000 | 65° | 45° | 55° | 0.23" | — |
| 1999 | 56° | 31° | 43° | — | — |
| 1998 | 76° | 50° | 63° | 0.94" | — |
| 1997 | 75° | 42° | 59° | — | — |
| 1996 | 64° | 35° | 50° | — | — |
| 1995 | 65° | 46° | 55° | 0.23" | — |
| 1994 | 77° | 54° | 65° | 0.05" | — |
| 1993 | 57° | 38° | 47° | 0.1" | — |
| 1992 | 80° | 50° | 65° | — | — |
| 1991 | 67° | 43° | 55° | 0.48" | — |
| 1990 | 59° | 33° | 46° | — | — |
| 1989 | 78° | 51° | 65° | — | — |
| 1988 | 68° | 39° | 54° | 0.03" | — |
| 1987warmest | 94° | 60° | 77° | — | — |
| 1986 | 64° | 43° | 53° | — | — |
| 1985 | 70° | 40° | 55° | — | — |
| 1984 | 76° | 45° | 60° | — | — |
| 1983 | 52° | 33° | 42° | 0.71" | 0.8" |
| 1982 | 59° | 42° | 51° | — | — |
| 1981 | 62° | 35° | 49° | — | — |
| 1980 | 72° | 47° | 59° | 0.69" | — |
| 1979coldest | 47° | 37° | 42° | 1.88" | — |
| 1978 | 69° | 34° | 51° | — | — |
| 1977 | 64° | 36° | 50° | 0.03" | — |
| 1976 | 80° | 47° | 63° | — | — |
| 1975 | 65° | 36° | 50° | — | — |
| 1974 | 79° | 57° | 68° | — | — |
| 1973 | 70° | 49° | 59° | 0.48" | — |
| 1972 | 61° | 41° | 51° | 0.1" | — |
| 1971 | 73° | 53° | 63° | 0.08" | — |
55 years of data from BOISE AIR TERMINAL