Weather on January 3
Boulder, CO
55 Years of Data
About This Date
January 3rd in Boulder, CO typically brings chilly winter weather, with average highs around 44°F and lows near 19°F — a 25°F daily swing. Over 56 years of records, the warmest January 3rd was in 1997 (53°F average), while the coldest was 1974 (1°F) — a 52°F range across recorded history. Precipitation has occurred on 23% of recorded January 3rd dates, with snow falling 20% of the time (heaviest snowfall: 4"). 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 January 3rd in Boulder, CO? Bring layers as temperatures can vary throughout the day. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 64° | 34° | 49° | — | — |
| 2025 | 50° | 23° | 37° | — | — |
| 2024 | 46° | 25° | 36° | — | — |
| 2023 | 28° | 16° | 22° | — | — |
| 2022 | 51° | 22° | 36° | — | — |
| 2021 | 54° | 37° | 45° | — | — |
| 2020 | 46° | 32° | 39° | — | — |
| 2019 | 52° | 21° | 37° | — | — |
| 2018 | 50° | 20° | 35° | — | — |
| 2017 | 27° | 10° | 18° | — | — |
| 2016 | 50° | 19° | 35° | — | — |
| 2015 | 35° | 15° | 25° | 0.08" | 0.7" |
| 2014 | 63° | 27° | 45° | — | — |
| 2013 | 39° | 9° | 24° | — | — |
| 2012 | 57° | 29° | 43° | — | — |
| 2011 | 36° | 16° | 26° | — | — |
| 2010 | 39° | 22° | 30° | 0.03" | 0.3" |
| 2009 | 49° | 23° | 36° | 0.03" | 0.1" |
| 2008 | 57° | 24° | 41° | — | — |
| 2007 | 58° | 26° | 42° | — | — |
| 2006 | 59° | 37° | 48° | 0.08" | — |
| 2005 | 35° | 13° | 24° | — | — |
| 2004 | 34° | 24° | 29° | 0.58" | 3.6" |
| 2003 | 63° | 41° | 52° | — | — |
| 2002 | 56° | 14° | 35° | — | — |
| 2001 | 57° | 28° | 43° | — | — |
| 2000 | 36° | 19° | 27° | 0.2" | 2.2" |
| 1999 | 27° | 7° | 17° | 0.08" | 1.1" |
| 1998 | 58° | 24° | 41° | — | — |
| 1997warmest | 68° | 37° | 53° | 0.08" | — |
| 1996 | 49° | 15° | 32° | — | — |
| 1995 | 22° | 2° | 12° | 0.1" | 2.4" |
| 1994 | 51° | 29° | 40° | — | — |
| 1993 | 45° | 19° | 32° | 0.13" | 0.7" |
| 1992 | 50° | 31° | 40° | — | — |
| 1991 | 23° | 14° | 19° | — | — |
| 1990 | 55° | 13° | 34° | — | — |
| 1989 | 60° | 37° | 49° | — | — |
| 1988 | 33° | 3° | 18° | — | — |
| 1987 | 51° | 24° | 38° | — | — |
| 1986 | 54° | 24° | 39° | — | — |
| 1985 | 48° | 22° | 35° | — | — |
| 1984 | 56° | 20° | 38° | — | — |
| 1983 | 35° | 1° | 18° | — | — |
| 1982 | 30° | 15° | 23° | — | — |
| 1981 | 57° | 27° | 42° | — | — |
| 1980 | 43° | 14° | 28° | — | — |
| 1979 | 31° | 10° | 20° | — | — |
| 1978 | 54° | 24° | 39° | — | — |
| 1977 | 41° | 19° | 30° | — | — |
| 1976 | 18° | 1° | 9° | — | — |
| 1975 | 43° | 9° | 26° | — | — |
| 1974coldest | 9° | -7° | 1° | — | — |
| 1973 | 31° | 14° | 22° | 0.05" | 1" |
| 1972 | 40° | 3° | 21° | 0.99" | 4" |
| 1971 | 15° | 5° | 10° | 0.38" | 2" |
Boulder, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Boulder, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Boulder, CO 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 Boulder, CO
Boulder, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.