Weather on January 3
Longmont, CO
55 Years of Data
Avg High
43°F
Avg Low
14°F
Warmest
1997
51°F avg
Coldest
1974
2°F avg
About This Date
January 3rd in Longmont, CO typically brings chilly winter weather, with average highs around 43°F and lows near 14°F — a 29°F daily swing. Over 56 years of records, the warmest January 3rd was in 1997 (51°F average), while the coldest was 1974 (2°F) — a 49°F range across recorded history. Precipitation has occurred on 20% of recorded January 3rd dates, with snow falling 14% of the time (heaviest snowfall: 5"). The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Planning for January 3rd in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
2.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 62° | 30° | 46° | — | — |
| 2025 | 48° | 22° | 35° | — | — |
| 2024 | 47° | 18° | 32° | — | — |
| 2023 | 28° | 12° | 20° | 0.18" | 0.8" |
| 2022 | 36° | 1° | 18° | — | — |
| 2021 | 43° | 15° | 29° | — | — |
| 2020 | 48° | 18° | 33° | — | — |
| 2019 | 40° | 3° | 21° | — | — |
| 2018 | 44° | 10° | 27° | — | — |
| 2017 | 41° | 13° | 27° | 0.3" | 2" |
| 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 | 47° | 23° | 35° | 0.51" | 1" |
| 2003 | 58° | 19° | 38° | — | — |
| 2002 | 37° | -1° | 18° | — | — |
| 2001 | 47° | 8° | 27° | — | — |
| 2000 | 45° | 21° | 33° | — | — |
| 1999 | 30° | 7° | 18° | 0.15" | — |
| 1998 | 66° | 27° | 46° | — | — |
| 1997warmest | 72° | 30° | 51° | — | — |
| 1996 | 27° | 11° | 19° | — | — |
| 1995 | 29° | 3° | 16° | 0.03" | — |
| 1994 | 51° | 23° | 37° | — | — |
| 1993 | 51° | 20° | 35° | — | — |
| 1992 | 55° | 13° | 34° | — | — |
| 1991 | 21° | 17° | 19° | — | — |
| 1990 | 55° | 13° | 34° | — | — |
| 1989 | 50° | 13° | 31° | — | — |
| 1988 | 27° | 7° | 17° | — | — |
| 1987 | 43° | 13° | 28° | — | — |
| 1986 | 52° | 21° | 36° | — | — |
| 1985 | 35° | 0° | 18° | — | — |
| 1984 | 40° | 9° | 24° | — | — |
| 1983 | 35° | 1° | 18° | — | — |
| 1982 | 28° | 13° | 20° | — | — |
| 1981 | 61° | 23° | 42° | — | — |
| 1980 | 37° | 0° | 19° | — | — |
| 1979 | 18° | -5° | 6° | — | — |
| 1978 | 41° | 2° | 21° | — | — |
| 1977 | 46° | 7° | 26° | — | — |
| 1976 | 28° | 0° | 14° | — | — |
| 1975 | 37° | 6° | 22° | — | — |
| 1974coldest | 17° | -14° | 2° | — | — |
| 1973 | 33° | 2° | 17° | — | — |
| 1972 | 54° | 17° | 35° | 0.61" | 4" |
| 1971 | 32° | 8° | 20° | 0.89" | 5" |
56 years of data from LONGMONT 2 ESE