Weather on December 23
Boise, ID
55 Years of Data
About This Date
December 23rd in Boise, ID typically brings cold winter weather, with average highs around 37°F and lows near 22°F. Over 55 years of records, the warmest December 23rd was in 2025 (51°F average), while the coldest was 1990 (-10°F) — a 61°F range across recorded history. Precipitation has occurred on 38% of recorded December 23rd dates, with snow falling 25% of the time (heaviest snowfall: 3"). The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for December 23rd in Boise, ID? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 61° | 41° | 51° | — | — |
| 2024 | 49° | 36° | 42° | 0.18" | — |
| 2023 | 41° | 25° | 33° | — | — |
| 2022 | 22° | 13° | 18° | 0.38" | 1.1" |
| 2021 | 46° | 33° | 40° | 0.56" | 0.4" |
| 2020 | 37° | 20° | 29° | — | — |
| 2019 | 48° | 37° | 43° | — | — |
| 2018 | 38° | 32° | 35° | 0.13" | — |
| 2017 | 33° | 10° | 22° | 0.36" | 2.1" |
| 2016 | 32° | 8° | 20° | 0.51" | 3" |
| 2015 | 37° | 24° | 31° | 0.15" | 1.1" |
| 2014 | 44° | 27° | 36° | — | — |
| 2013 | 42° | 33° | 38° | 0.13" | — |
| 2012 | 42° | 31° | 36° | 0.13" | — |
| 2011 | 36° | 16° | 26° | — | — |
| 2010 | 44° | 29° | 36° | — | — |
| 2009 | 33° | 22° | 27° | — | — |
| 2008 | 30° | 12° | 21° | 0.2" | 1.5" |
| 2007 | 39° | 27° | 33° | 0.25" | 0.9" |
| 2006 | 40° | 24° | 32° | 0.13" | — |
| 2005 | 52° | 33° | 42° | — | — |
| 2004 | 32° | 19° | 26° | — | — |
| 2003 | 46° | 25° | 35° | — | — |
| 2002 | 36° | 31° | 33° | — | — |
| 2001 | 34° | 20° | 27° | — | — |
| 2000 | 44° | 34° | 39° | 0.33" | — |
| 1999 | 41° | 23° | 32° | — | — |
| 1998 | 20° | 4° | 12° | — | — |
| 1997 | 29° | 21° | 25° | — | — |
| 1996 | 38° | 25° | 31° | 0.03" | 0.1" |
| 1995 | 34° | 18° | 26° | — | — |
| 1994 | 26° | 19° | 23° | — | — |
| 1993 | 37° | 13° | 25° | — | — |
| 1992 | 44° | 30° | 37° | — | — |
| 1991 | 38° | 19° | 28° | — | — |
| 1990coldest | -2° | -18° | -10° | — | — |
| 1989 | 43° | 19° | 31° | — | — |
| 1988 | 31° | 18° | 24° | 0.05" | 0.2" |
| 1987 | 35° | 22° | 28° | — | — |
| 1986 | 40° | 22° | 31° | — | — |
| 1985 | 13° | -6° | 4° | — | — |
| 1984 | 39° | 29° | 34° | — | — |
| 1983 | 4° | -18° | -7° | — | — |
| 1982 | 36° | 24° | 30° | 0.56" | 2.2" |
| 1981 | 35° | 18° | 26° | — | — |
| 1980 | 48° | 31° | 39° | — | — |
| 1979 | 39° | 21° | 30° | 0.15" | 0.8" |
| 1978 | 43° | 28° | 35° | — | — |
| 1977 | 41° | 25° | 33° | 0.46" | 0.2" |
| 1976 | 36° | 19° | 27° | 0.15" | 1" |
| 1975 | 31° | 16° | 23° | — | — |
| 1974 | 36° | 22° | 29° | — | — |
| 1973 | 44° | 33° | 39° | 0.51" | 0.1" |
| 1972 | 53° | 39° | 46° | 0.48" | — |
| 1971 | 46° | 35° | 41° | — | — |