Weather on February 20
Boise, ID
55 Years of Data
Avg High
47°F
Avg Low
29°F
Warmest
1995
51°F avg
Coldest
2018
19°F avg
About This Date
February 20th in Boise, ID typically brings chilly winter weather, with average highs around 47°F and lows near 29°F. Over 56 years of records, the warmest February 20th was in 1995 (51°F average), while the coldest was 2018 (19°F) — a 32°F range across recorded history. Precipitation has occurred on 29% of recorded February 20th dates, with snow falling 11% of the time (heaviest snowfall: 3.6"). The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
Planning for February 20th in Boise, ID? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 40° | 28° | 34° | — | — |
| 2025 | 44° | 29° | 37° | 0.05" | — |
| 2024 | 59° | 37° | 48° | — | — |
| 2023 | 55° | 35° | 45° | — | — |
| 2022 | 50° | 30° | 40° | — | — |
| 2021 | 41° | 30° | 36° | 0.05" | 0.2" |
| 2020 | 45° | 20° | 33° | — | — |
| 2019 | 35° | 22° | 29° | 0.56" | 3.6" |
| 2018coldest | 28° | 9° | 19° | — | — |
| 2017 | 57° | 40° | 48° | 0.1" | — |
| 2016 | 48° | 35° | 42° | — | — |
| 2015 | 53° | 36° | 44° | — | — |
| 2014 | 44° | 29° | 37° | 0.05" | — |
| 2013 | 44° | 26° | 35° | — | — |
| 2012 | 39° | 30° | 35° | — | — |
| 2011 | 37° | 26° | 32° | 0.2" | 0.6" |
| 2010 | 41° | 32° | 37° | — | — |
| 2009 | 50° | 27° | 38° | — | — |
| 2008 | 42° | 28° | 35° | — | — |
| 2007 | 53° | 36° | 44° | 0.03" | — |
| 2006 | 36° | 13° | 24° | — | — |
| 2005 | 51° | 30° | 41° | 0.03" | — |
| 2004 | 46° | 30° | 38° | — | — |
| 2003 | 49° | 35° | 42° | — | — |
| 2002 | 49° | 32° | 40° | — | — |
| 2001 | 48° | 36° | 42° | 0.51" | — |
| 2000 | 52° | 33° | 42° | — | — |
| 1999 | 46° | 26° | 36° | — | — |
| 1998 | 51° | 36° | 43° | — | — |
| 1997 | 44° | 27° | 35° | — | — |
| 1996 | 53° | 42° | 48° | — | — |
| 1995warmest | 67° | 36° | 51° | — | — |
| 1994 | 43° | 32° | 37° | 0.03" | — |
| 1993 | 42° | 31° | 36° | — | — |
| 1992 | 54° | 37° | 45° | 0.38" | — |
| 1991 | 60° | 32° | 46° | — | — |
| 1990 | 38° | 21° | 29° | 0.28" | 1.3" |
| 1989 | 43° | 25° | 34° | — | — |
| 1988 | 57° | 24° | 41° | — | — |
| 1987 | 44° | 21° | 33° | — | — |
| 1986 | 46° | 29° | 37° | 0.36" | 1" |
| 1985 | 37° | 21° | 29° | 0.15" | 1.1" |
| 1984 | 36° | 18° | 27° | — | — |
| 1983 | 49° | 37° | 43° | — | — |
| 1982 | 54° | 44° | 49° | — | — |
| 1981 | 44° | 28° | 36° | — | — |
| 1980 | 53° | 34° | 43° | 0.36" | — |
| 1979 | 47° | 29° | 38° | 0.03" | — |
| 1978 | 48° | 32° | 40° | — | — |
| 1977 | 69° | 29° | 49° | — | — |
| 1976 | 40° | 19° | 29° | — | — |
| 1975 | 41° | 27° | 34° | — | — |
| 1974 | 45° | 28° | 36° | — | — |
| 1973 | 47° | 23° | 35° | — | — |
| 1972 | 58° | 33° | 45° | — | — |
| 1971 | 50° | 30° | 40° | — | — |
56 years of data from BOISE AIR TERMINAL