Weather on May 17
Boise, ID
55 Years of Data
Avg High
72°F
Avg Low
46°F
Warmest
2006
76°F avg
Coldest
2017
42°F avg
About This Date
May 17th in Boise, ID typically brings pleasant spring weather, with average highs around 72°F and lows near 46°F — a 26°F daily swing. Over 55 years of records, the warmest May 17th was in 2006 (76°F average), while the coldest was 2017 (42°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 25% of May 17th dates historically, with the wettest May 17th recording 1.63" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for May 17th in Boise, ID? Great weather for outdoor activities.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 50° | 53° | 0.81" | — |
| 2024 | 71° | 50° | 61° | — | — |
| 2023 | 82° | 56° | 69° | — | — |
| 2022 | 74° | 48° | 61° | — | — |
| 2021 | 86° | 58° | 72° | — | — |
| 2020 | 79° | 55° | 67° | 0.05" | — |
| 2019 | 52° | 47° | 49° | 1.52" | — |
| 2018 | 69° | 55° | 62° | 0.03" | — |
| 2017coldest | 49° | 36° | 42° | 0.03" | — |
| 2016 | 77° | 45° | 61° | — | — |
| 2015 | 70° | 46° | 58° | 0.15" | — |
| 2014 | 79° | 49° | 64° | — | — |
| 2013 | 66° | 52° | 59° | — | — |
| 2012 | 71° | 51° | 61° | — | — |
| 2011 | 61° | 39° | 50° | — | — |
| 2010 | 77° | 57° | 67° | 0.3" | — |
| 2009 | 91° | 51° | 71° | — | — |
| 2008 | 94° | 56° | 75° | — | — |
| 2007 | 89° | 54° | 71° | — | — |
| 2006warmest | 92° | 60° | 76° | — | — |
| 2005 | 60° | 43° | 51° | — | — |
| 2004 | 70° | 43° | 56° | — | — |
| 2003 | 56° | 35° | 45° | — | — |
| 2002 | 80° | 55° | 68° | — | — |
| 2001 | 71° | 40° | 55° | — | — |
| 2000 | 75° | 52° | 63° | — | — |
| 1999 | 74° | 48° | 61° | — | — |
| 1998 | 58° | 42° | 50° | 0.48" | — |
| 1997 | 81° | 61° | 71° | — | — |
| 1996 | 68° | 49° | 58° | 0.48" | — |
| 1995 | 72° | 45° | 58° | — | — |
| 1994 | 53° | 39° | 46° | 0.61" | — |
| 1993 | 84° | 52° | 68° | — | — |
| 1992 | 92° | 51° | 71° | — | — |
| 1991 | 67° | 45° | 56° | 1.63" | — |
| 1990 | 76° | 46° | 61° | — | — |
| 1989 | 79° | 39° | 59° | — | — |
| 1988 | 64° | 39° | 52° | 0.08" | — |
| 1987 | 75° | 52° | 63° | — | — |
| 1986 | 76° | 41° | 58° | — | — |
| 1985 | 79° | 48° | 63° | — | — |
| 1984 | 66° | 44° | 55° | — | — |
| 1983 | 66° | 40° | 53° | — | — |
| 1982 | 77° | 47° | 62° | 0.18" | — |
| 1981 | 70° | 33° | 51° | — | — |
| 1980 | 71° | 39° | 55° | — | — |
| 1979 | 73° | 38° | 55° | — | — |
| 1978 | 65° | 38° | 51° | — | — |
| 1977 | 56° | 36° | 46° | 0.08" | — |
| 1976 | 74° | 48° | 61° | — | — |
| 1975 | 73° | 40° | 56° | — | — |
| 1974 | 58° | 34° | 46° | — | — |
| 1973 | 90° | 53° | 71° | — | — |
| 1972 | 71° | 47° | 59° | — | — |
| 1971 | 57° | 35° | 46° | — | — |
55 years of data from BOISE AIR TERMINAL