Weather on December 22
Longmont, CO
55 Years of Data
About This Date
December 22nd in Longmont, CO typically brings chilly winter weather, with average highs around 44°F and lows near 15°F — a 29°F daily swing. Over 55 years of records, the warmest December 22nd was in 2021 (47°F average), while the coldest was 1990 (-17°F) — a 64°F range across recorded history. Precipitation has occurred on 20% of recorded December 22nd dates, with snow falling 18% of the time (heaviest snowfall: 14.6"). The last decade has been 10.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 10.0°F warmer on this date compared to 20-30 years ago.
Planning for December 22nd in Longmont, CO? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 57° | 32° | 45° | — | — |
| 2024 | 62° | 21° | 42° | — | — |
| 2023 | 61° | 26° | 43° | — | — |
| 2022 | 50° | -15° | 18° | 0.97" | 4.8" |
| 2021warmest | 62° | 32° | 47° | — | — |
| 2020 | 58° | 26° | 42° | — | — |
| 2019 | 55° | 23° | 39° | — | — |
| 2018 | 62° | 27° | 44° | — | — |
| 2017 | 23° | 6° | 15° | 0.18" | 0.5" |
| 2016 | 41° | 22° | 31° | — | — |
| 2015 | 54° | 25° | 39° | — | — |
| 2014 | 45° | 29° | 37° | 0.36" | 1.2" |
| 2013 | 40° | 13° | 26° | 0.1" | 0.8" |
| 2012 | 51° | 30° | 41° | — | — |
| 2011 | 33° | 15° | 24° | 2.36" | 14.6" |
| 2010 | 41° | 19° | 30° | — | — |
| 2009 | 51° | 32° | 42° | — | — |
| 2008 | 27° | 3° | 15° | — | — |
| 2007 | 35° | 9° | 22° | — | — |
| 2006 | 41° | 18° | 29° | — | — |
| 2005 | 62° | 23° | 43° | — | — |
| 2004 | 29° | 17° | 23° | 0.38" | 3.9" |
| 2003 | 54° | 19° | 36° | — | 1" |
| 2002 | 42° | 14° | 28° | — | — |
| 2001 | 50° | 18° | 34° | — | — |
| 2000 | 39° | 6° | 23° | — | — |
| 1999 | 38° | 13° | 25° | — | — |
| 1998 | 12° | -25° | -6° | — | — |
| 1997 | 37° | 11° | 24° | — | — |
| 1996 | 47° | 26° | 36° | — | — |
| 1995 | 39° | 13° | 26° | 0.13" | 1" |
| 1994 | 65° | 21° | 43° | — | — |
| 1993 | 29° | -2° | 13° | 0.05" | — |
| 1992 | 39° | 9° | 24° | — | — |
| 1991 | 50° | 19° | 35° | — | — |
| 1990coldest | -4° | -31° | -17° | — | — |
| 1989 | 4° | -25° | -11° | 0.18" | 0.8" |
| 1988 | 43° | 9° | 26° | — | — |
| 1987 | 45° | 18° | 31° | — | — |
| 1986 | 48° | 16° | 32° | — | — |
| 1985 | 51° | 21° | 36° | — | — |
| 1984 | 43° | 18° | 30° | — | — |
| 1983 | -6° | -18° | -12° | — | — |
| 1982 | 61° | 29° | 45° | — | — |
| 1981 | 48° | 24° | 36° | 1.3" | 4" |
| 1980 | 51° | 23° | 37° | — | — |
| 1979 | 46° | 21° | 34° | 0.23" | — |
| 1978 | 49° | 19° | 34° | — | — |
| 1977 | 53° | 9° | 31° | — | — |
| 1976 | 52° | 12° | 32° | — | — |
| 1975 | 43° | 18° | 30° | — | — |
| 1974 | 58° | 27° | 42° | — | — |
| 1973 | 45° | 9° | 27° | — | — |
| 1972 | 50° | 20° | 35° | — | — |
| 1971 | 54° | 22° | 38° | — | — |
Longmont, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Longmont, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Longmont, 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 Longmont, CO
Longmont, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.