Weather on January 4
Boise, ID
55 Years of Data
About This Date
January 4th in Boise, ID typically brings cold winter weather, with average highs around 36°F and lows near 22°F. Over 56 years of records, the warmest January 4th was in 2026 (45°F average), while the coldest was 1991 (1°F) — a 44°F range across recorded history. Precipitation has occurred on 41% of recorded January 4th dates, with snow falling 30% of the time (heaviest snowfall: 6.5"). The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
Planning for January 4th 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 |
|---|---|---|---|---|---|
| 2026warmest | 51° | 40° | 45° | 0.03" | — |
| 2025 | 45° | 35° | 40° | 0.02" | — |
| 2024 | 44° | 31° | 38° | — | — |
| 2023 | 44° | 29° | 37° | — | — |
| 2022 | 35° | 31° | 33° | 0.16" | 0.9" |
| 2021 | 48° | 37° | 43° | 0.19" | — |
| 2020 | 47° | 30° | 39° | — | — |
| 2019 | 38° | 23° | 31° | — | — |
| 2018 | 36° | 19° | 28° | — | — |
| 2017 | 26° | 19° | 23° | 0.45" | 6.5" |
| 2016 | 38° | 25° | 32° | — | — |
| 2015 | 32° | 19° | 26° | 0.02" | 0.1" |
| 2014 | 33° | 15° | 24° | — | — |
| 2013 | 22° | 3° | 12° | — | — |
| 2012 | 49° | 27° | 38° | — | — |
| 2011 | 27° | 11° | 19° | — | — |
| 2010 | 35° | 28° | 32° | — | — |
| 2009 | 29° | 16° | 22° | — | — |
| 2008 | 48° | 36° | 42° | 0.04" | — |
| 2007 | 41° | 29° | 35° | 0.01" | — |
| 2006 | 46° | 33° | 40° | — | — |
| 2005 | 26° | 19° | 23° | 0.01" | 0.1" |
| 2004 | 32° | 12° | 22° | 0.08" | 1.6" |
| 2003 | 51° | 35° | 43° | — | — |
| 2002 | 30° | 24° | 27° | — | 0.1" |
| 2001 | 37° | 21° | 29° | — | — |
| 2000 | 40° | 30° | 35° | 0.23" | 0.1" |
| 1999 | 40° | 23° | 31° | — | — |
| 1998 | 46° | 30° | 38° | — | — |
| 1997 | 38° | 25° | 31° | — | — |
| 1996 | 40° | 26° | 33° | — | — |
| 1995 | 32° | 12° | 22° | — | — |
| 1994 | 47° | 35° | 41° | 0.08" | — |
| 1993 | 29° | 22° | 25° | — | — |
| 1992 | 44° | 29° | 36° | 0.01" | 0.1" |
| 1991coldest | 11° | -9° | 1° | — | — |
| 1990 | 31° | 19° | 25° | 0.07" | 1.3" |
| 1989 | 32° | 13° | 22° | — | — |
| 1988 | 28° | 21° | 25° | 0.05" | 0.5" |
| 1987 | 38° | 31° | 34° | — | — |
| 1986 | 27° | 13° | 20° | — | — |
| 1985 | 29° | 8° | 18° | — | — |
| 1984 | 35° | 29° | 32° | — | — |
| 1983 | 39° | 24° | 32° | 0.31" | 0.7" |
| 1982 | 42° | 26° | 34° | 0.08" | 0.8" |
| 1981 | 35° | 33° | 34° | — | — |
| 1980 | 39° | 32° | 36° | 0.04" | — |
| 1979 | 22° | 6° | 14° | 0.03" | 0.3" |
| 1978 | 43° | 16° | 29° | — | — |
| 1977 | 30° | 8° | 19° | 0.01" | 0.2" |
| 1976 | 37° | 26° | 32° | 0.38" | 2.1" |
| 1975 | 40° | 21° | 30° | 0.01" | 0.2" |
| 1974 | 18° | 6° | 12° | — | — |
| 1973 | 27° | 15° | 21° | — | — |
| 1972 | 27° | 12° | 19° | 0.01" | 0.1" |
| 1971 | 23° | 6° | 15° | — | — |
Boise, ID Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Boise, ID Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Boise, ID Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Boise, ID
Most pleasant months in Boise, ID: May, June, September, October.
What to expect on January 4th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
January 4th outlook →