Weather on May 23
Boise, ID
55 Years of Data
Avg High
73°F
Avg Low
47°F
Warmest
2001
76°F avg
Coldest
1978
46°F avg
About This Date
May 23rd in Boise, ID typically brings pleasant spring weather, with average highs around 73°F and lows near 47°F — a 26°F daily swing. Over 55 years of records, the warmest May 23rd was in 2001 (76°F average), while the coldest was 1978 (46°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 22% of May 23rd dates historically, with the wettest May 23rd recording 2.11" of rain. The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for May 23rd in Boise, ID? Great weather for outdoor activities.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 46° | 59° | — | — |
| 2024 | 63° | 40° | 51° | — | — |
| 2023 | 75° | 52° | 63° | — | — |
| 2022 | 71° | 45° | 58° | — | — |
| 2021 | 63° | 42° | 52° | — | — |
| 2020 | 66° | 39° | 53° | — | — |
| 2019 | 72° | 48° | 60° | — | — |
| 2018 | 81° | 59° | 70° | 0.13" | — |
| 2017 | 87° | 56° | 71° | — | — |
| 2016 | 70° | 44° | 57° | — | — |
| 2015 | 79° | 54° | 66° | 0.1" | — |
| 2014 | 88° | 53° | 70° | — | — |
| 2013 | 65° | 33° | 49° | — | — |
| 2012 | 63° | 47° | 55° | — | — |
| 2011 | 62° | 47° | 54° | — | — |
| 2010 | 59° | 33° | 46° | — | — |
| 2009 | 83° | 52° | 67° | — | — |
| 2008 | 68° | 47° | 57° | 0.13" | — |
| 2007 | 69° | 39° | 54° | — | — |
| 2006 | 74° | 51° | 62° | — | — |
| 2005 | 66° | 41° | 54° | — | — |
| 2004 | 63° | 45° | 54° | 0.18" | — |
| 2003 | 90° | 55° | 72° | — | — |
| 2002 | 63° | 44° | 53° | — | — |
| 2001warmest | 95° | 58° | 76° | — | — |
| 2000 | 79° | 52° | 65° | — | — |
| 1999 | 86° | 49° | 67° | — | — |
| 1998 | 69° | 46° | 58° | — | — |
| 1997 | 68° | 51° | 60° | 0.61" | — |
| 1996 | 60° | 35° | 48° | 0.05" | — |
| 1995 | 71° | 48° | 60° | — | — |
| 1994 | 83° | 45° | 64° | — | — |
| 1993 | 77° | 41° | 59° | — | — |
| 1992 | 88° | 48° | 68° | — | — |
| 1991 | 80° | 40° | 60° | — | — |
| 1990 | 76° | 46° | 61° | 0.97" | — |
| 1989 | 68° | 46° | 57° | — | — |
| 1988 | 86° | 56° | 71° | — | — |
| 1987 | 79° | 43° | 61° | — | — |
| 1986 | 69° | 39° | 54° | — | — |
| 1985 | 88° | 59° | 73° | — | — |
| 1984 | 66° | 49° | 57° | 0.03" | — |
| 1983 | 83° | 46° | 64° | — | — |
| 1982 | 75° | 44° | 60° | — | — |
| 1981 | 74° | 40° | 57° | — | — |
| 1980 | 54° | 43° | 48° | 0.1" | — |
| 1979 | 81° | 62° | 71° | — | — |
| 1978coldest | 53° | 40° | 46° | 0.05" | — |
| 1977 | 60° | 48° | 54° | 2.11" | — |
| 1976 | 82° | 49° | 65° | — | — |
| 1975 | 70° | 47° | 58° | 0.28" | — |
| 1974 | 78° | 49° | 63° | — | — |
| 1973 | 86° | 49° | 67° | — | — |
| 1972 | 71° | 45° | 58° | — | — |
| 1971 | 75° | 42° | 59° | — | — |
55 years of data from BOISE AIR TERMINAL