Weather on May 19
Boise, ID
55 Years of Data
Avg High
72°F
Avg Low
46°F
Warmest
2006
77°F avg
Coldest
1989
45°F avg
About This Date
May 19th 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 19th was in 2006 (77°F average), while the coldest was 1989 (45°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 22% of May 19th dates historically, with the wettest May 19th recording 1.12" of rain. The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for May 19th in Boise, ID? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 35° | 50° | 0.1" | — |
| 2024 | 64° | 44° | 54° | — | — |
| 2023 | 90° | 61° | 75° | — | — |
| 2022 | 58° | 41° | 49° | — | — |
| 2021 | 61° | 46° | 53° | — | — |
| 2020 | 56° | 45° | 50° | 0.89" | — |
| 2019 | 58° | 50° | 54° | 0.71" | — |
| 2018 | 80° | 50° | 65° | — | — |
| 2017 | 71° | 45° | 58° | — | — |
| 2016 | 69° | 50° | 60° | 0.23" | — |
| 2015 | 67° | 53° | 60° | 0.71" | — |
| 2014 | 69° | 43° | 56° | — | — |
| 2013 | 69° | 48° | 59° | — | — |
| 2012 | 75° | 43° | 59° | — | — |
| 2011 | 75° | 46° | 61° | — | — |
| 2010 | 74° | 46° | 60° | 0.18" | — |
| 2009 | 81° | 56° | 68° | — | — |
| 2008 | 89° | 57° | 73° | — | — |
| 2007 | 81° | 57° | 69° | — | — |
| 2006warmest | 90° | 64° | 77° | 0.05" | — |
| 2005 | 68° | 51° | 60° | 0.2" | — |
| 2004 | 65° | 49° | 57° | — | — |
| 2003 | 64° | 32° | 48° | — | — |
| 2002 | 88° | 56° | 72° | — | — |
| 2001 | 75° | 42° | 59° | — | — |
| 2000 | 77° | 50° | 64° | — | — |
| 1999 | 74° | 45° | 59° | — | — |
| 1998 | 71° | 43° | 57° | — | — |
| 1997 | 81° | 47° | 64° | — | — |
| 1996 | 60° | 43° | 51° | — | — |
| 1995 | 73° | 38° | 55° | — | — |
| 1994 | 61° | 43° | 52° | 1.12" | — |
| 1993 | 90° | 58° | 74° | — | — |
| 1992 | 84° | 48° | 66° | — | — |
| 1991 | 67° | 38° | 52° | — | — |
| 1990 | 69° | 47° | 58° | — | — |
| 1989coldest | 62° | 28° | 45° | — | — |
| 1988 | 70° | 31° | 50° | — | — |
| 1987 | 63° | 40° | 51° | — | — |
| 1986 | 87° | 52° | 69° | — | — |
| 1985 | 78° | 44° | 61° | — | — |
| 1984 | 80° | 52° | 66° | — | — |
| 1983 | 68° | 41° | 55° | — | — |
| 1982 | 66° | 35° | 51° | — | — |
| 1981 | 61° | 48° | 54° | 0.15" | — |
| 1980 | 83° | 55° | 69° | — | — |
| 1979 | 74° | 40° | 57° | — | — |
| 1978 | 73° | 46° | 60° | — | — |
| 1977 | 67° | 35° | 51° | — | — |
| 1976 | 78° | 41° | 60° | — | — |
| 1975 | 60° | 38° | 49° | 0.03" | — |
| 1974 | 62° | 33° | 48° | — | — |
| 1973 | 82° | 60° | 71° | 0.28" | — |
| 1972 | 70° | 46° | 58° | — | — |
| 1971 | 66° | 45° | 55° | — | — |
55 years of data from BOISE AIR TERMINAL