Weather on January 5
Boulder, CO
55 Years of Data
Avg High
43°F
Avg Low
19°F
Warmest
2012
54°F avg
Coldest
2017
2°F avg
About This Date
January 5th in Boulder, CO typically brings chilly winter weather, with average highs around 43°F and lows near 19°F. Over 56 years of records, the warmest January 5th was in 2012 (54°F average), while the coldest was 2017 (2°F) — a 52°F range across recorded history. Precipitation has occurred on 14% of recorded January 5th dates, with snow falling 11% of the time (heaviest snowfall: 11.5"). The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
Planning for January 5th in Boulder, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 59° | 37° | 48° | — | — |
| 2025 | 30° | 18° | 24° | — | — |
| 2024 | 43° | 25° | 34° | — | — |
| 2023 | 34° | 18° | 26° | — | — |
| 2022 | 36° | 11° | 23° | 0.43" | 2.6" |
| 2021 | 52° | 28° | 40° | — | — |
| 2020 | 46° | 28° | 37° | — | — |
| 2019 | 57° | 32° | 45° | — | — |
| 2018 | 62° | 25° | 43° | — | — |
| 2017coldest | 7° | -3° | 2° | — | — |
| 2016 | 51° | 23° | 37° | — | — |
| 2015 | 56° | 2° | 29° | — | — |
| 2014 | 19° | 3° | 11° | 0.1" | 0.6" |
| 2013 | 42° | 20° | 31° | — | — |
| 2012warmest | 69° | 39° | 54° | — | — |
| 2011 | 49° | 31° | 40° | — | — |
| 2010 | 48° | 22° | 35° | — | — |
| 2009 | 43° | 7° | 25° | — | — |
| 2008 | 61° | 38° | 49° | — | — |
| 2007 | 42° | 23° | 33° | 2.31" | 11.5" |
| 2006 | 53° | 22° | 37° | — | — |
| 2005 | 13° | 2° | 7° | 0.36" | 2.6" |
| 2004 | 20° | -5° | 7° | — | — |
| 2003 | 53° | 35° | 44° | — | — |
| 2002 | 46° | 14° | 30° | 0.03" | 0.2" |
| 2001 | 64° | 32° | 48° | — | — |
| 2000 | 47° | 26° | 36° | — | — |
| 1999 | 49° | 26° | 37° | — | — |
| 1998 | 48° | 24° | 36° | — | — |
| 1997 | 31° | 13° | 22° | — | — |
| 1996 | 25° | 6° | 15° | 0.23" | 2.5" |
| 1995 | 36° | 4° | 20° | — | — |
| 1994 | 55° | 38° | 46° | — | — |
| 1993 | 33° | 13° | 23° | — | — |
| 1992 | 51° | 25° | 38° | — | — |
| 1991 | 41° | 17° | 29° | — | — |
| 1990 | 33° | 4° | 18° | — | — |
| 1989 | 56° | 37° | 46° | 0.08" | — |
| 1988 | 15° | 4° | 9° | — | — |
| 1987 | 52° | 32° | 42° | — | — |
| 1986 | 54° | 15° | 34° | — | — |
| 1985 | 55° | 21° | 38° | — | — |
| 1984 | 71° | 31° | 51° | — | — |
| 1983 | 46° | 18° | 32° | — | — |
| 1982 | 49° | 35° | 42° | — | — |
| 1981 | 48° | 30° | 39° | — | — |
| 1980 | 57° | 25° | 41° | — | — |
| 1979 | 21° | -2° | 10° | 0.08" | — |
| 1978 | 53° | 30° | 42° | — | — |
| 1977 | 23° | 11° | 17° | — | — |
| 1976 | 53° | 17° | 35° | — | — |
| 1975 | 43° | 22° | 32° | — | — |
| 1974 | 11° | -3° | 4° | — | — |
| 1973 | 27° | -3° | 12° | — | — |
| 1972 | 41° | 1° | 21° | — | — |
| 1971 | 12° | -4° | 4° | — | — |
56 years of data from BOULDER MUNI AP