Weather on March 15
Boise, ID
55 Years of Data
Avg High
55°F
Avg Low
34°F
Warmest
2015
59°F avg
Coldest
1980
35°F avg
About This Date
March 15th in Boise, ID typically brings cool spring weather, with average highs around 55°F and lows near 34°F. Over 56 years of records, the warmest March 15th was in 2015 (59°F average), while the coldest was 1980 (35°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 46% of March 15th dates historically, with the wettest March 15th recording 1.47" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 15th in Boise, ID? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 48° | 25° | 36° | — | — |
| 2025 | 50° | 36° | 43° | 0.18" | — |
| 2024 | 59° | 29° | 44° | — | — |
| 2023 | 49° | 31° | 40° | 0.15" | — |
| 2022 | 54° | 40° | 47° | 0.86" | — |
| 2021 | 62° | 36° | 49° | — | — |
| 2020 | 56° | 34° | 45° | 1.47" | — |
| 2019 | 54° | 28° | 41° | — | — |
| 2018 | 51° | 37° | 44° | 0.03" | — |
| 2017 | 70° | 46° | 58° | 0.25" | — |
| 2016 | 45° | 36° | 40° | 0.2" | — |
| 2015warmest | 68° | 50° | 59° | — | — |
| 2014 | 59° | 30° | 45° | — | — |
| 2013 | 63° | 40° | 51° | — | — |
| 2012 | 61° | 46° | 53° | 0.36" | — |
| 2011 | 54° | 44° | 49° | 0.69" | — |
| 2010 | 60° | 34° | 47° | — | — |
| 2009 | 54° | 42° | 48° | 0.05" | — |
| 2008 | 48° | 31° | 39° | 0.05" | — |
| 2007 | 61° | 29° | 45° | — | — |
| 2006 | 44° | 26° | 35° | 0.03" | — |
| 2005 | 58° | 35° | 46° | — | — |
| 2004 | 61° | 33° | 47° | — | — |
| 2003 | 61° | 44° | 52° | 0.66" | — |
| 2002 | 46° | 25° | 35° | — | — |
| 2001 | 54° | 31° | 42° | 0.33" | — |
| 2000 | 50° | 33° | 42° | — | — |
| 1999 | 60° | 34° | 47° | — | — |
| 1998 | 61° | 40° | 50° | — | — |
| 1997 | 54° | 33° | 43° | 0.03" | — |
| 1996 | 59° | 38° | 48° | — | — |
| 1995 | 58° | 35° | 46° | 0.25" | — |
| 1994 | 73° | 41° | 57° | — | — |
| 1993 | 52° | 39° | 45° | 0.38" | — |
| 1992 | 65° | 40° | 52° | — | — |
| 1991 | 49° | 22° | 35° | — | — |
| 1990 | 53° | 29° | 41° | — | — |
| 1989 | 54° | 34° | 44° | — | — |
| 1988 | 53° | 30° | 42° | — | — |
| 1987 | 52° | 38° | 45° | 0.13" | — |
| 1986 | 54° | 32° | 43° | 0.38" | — |
| 1985 | 52° | 25° | 38° | — | — |
| 1984 | 46° | 35° | 41° | 0.66" | — |
| 1983 | 49° | 30° | 39° | 0.03" | — |
| 1982 | 45° | 28° | 36° | 0.48" | — |
| 1981 | 66° | 39° | 53° | — | — |
| 1980coldest | 42° | 28° | 35° | 0.1" | — |
| 1979 | 64° | 36° | 50° | — | — |
| 1978 | 53° | 27° | 40° | — | — |
| 1977 | 52° | 31° | 41° | — | — |
| 1976 | 50° | 24° | 37° | — | — |
| 1975 | 55° | 36° | 45° | 0.03" | — |
| 1974 | 56° | 41° | 48° | 0.03" | — |
| 1973 | 54° | 24° | 39° | — | — |
| 1972 | 62° | 36° | 49° | — | — |
| 1971 | 44° | 31° | 37° | 0.03" | — |
56 years of data from BOISE AIR TERMINAL