Weather on December 21
Saint George, UT
55 Years of Data
About This Date
December 21st in Saint George, UT typically brings cool winter weather, with average highs around 52°F and lows near 28°F. Over 55 years of records, the warmest December 21st was in 2003 (52°F average), while the coldest was 1990 (23°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 13% of December 21st dates historically, with the wettest December 21st recording 1.03" of rain. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Saint George, UT? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 36° | 47° | — | — |
| 2024 | 63° | 30° | 46° | — | — |
| 2023 | 65° | 36° | 50° | 0.07" | — |
| 2022 | 52° | 26° | 39° | — | — |
| 2021 | 52° | 24° | 38° | — | — |
| 2020 | 53° | 25° | 39° | — | — |
| 2019 | 49° | 22° | 35° | — | — |
| 2018 | 61° | 31° | 46° | — | — |
| 2017 | 61° | 29° | 45° | — | — |
| 2016 | 52° | 21° | 36° | — | — |
| 2015 | 47° | 28° | 37° | — | — |
| 2014 | 49° | 23° | 36° | — | — |
| 2013 | 48° | 31° | 39° | — | — |
| 2012 | 45° | 18° | 31° | — | — |
| 2011 | 47° | 28° | 37° | — | — |
| 2010 | 50° | 46° | 48° | 1.03" | — |
| 2009 | 48° | 30° | 39° | — | — |
| 2008 | 47° | 27° | 37° | — | — |
| 2007 | 50° | 32° | 41° | — | — |
| 2006 | 48° | 24° | 36° | — | — |
| 2005 | 61° | 34° | 47° | — | — |
| 2004 | 53° | 39° | 46° | — | — |
| 2003warmest | 62° | 43° | 52° | — | — |
| 2002 | 39° | 31° | 35° | 0.03" | — |
| 2001 | 48° | 27° | 37° | 0.02" | — |
| 2000 | 60° | 27° | 43° | — | — |
| 1999 | 50° | 28° | 39° | — | — |
| 1998 | 36° | 20° | 28° | — | — |
| 1997 | 51° | 30° | 41° | — | — |
| 1996 | 50° | 27° | 38° | — | — |
| 1995 | 46° | 22° | 34° | — | — |
| 1994 | 63° | 22° | 42° | — | — |
| 1993 | 51° | 17° | 34° | — | — |
| 1992 | 42° | 12° | 27° | — | — |
| 1991 | 52° | 25° | 38° | — | — |
| 1990coldest | 31° | 15° | 23° | — | — |
| 1989 | 58° | 22° | 40° | — | — |
| 1988 | 48° | 36° | 42° | 0.83" | — |
| 1987 | 50° | 24° | 37° | — | — |
| 1986 | 56° | 28° | 42° | — | — |
| 1985 | 62° | 26° | 44° | — | — |
| 1984 | 48° | 30° | 39° | — | — |
| 1983 | 48° | 29° | 38° | — | — |
| 1982 | 58° | 39° | 48° | — | — |
| 1981 | 68° | 33° | 51° | — | — |
| 1980 | 67° | 30° | 48° | — | — |
| 1979 | 60° | 40° | 50° | 0.24" | — |
| 1978 | 48° | 24° | 36° | — | — |
| 1977 | 50° | 30° | 40° | — | — |
| 1976 | 53° | 15° | 34° | — | — |
| 1975 | 57° | 38° | 47° | 0.26" | — |
| 1974 | 48° | 26° | 37° | — | — |
| 1973 | 52° | 18° | 35° | — | — |
| 1972 | 59° | 27° | 43° | — | — |
| 1971 | 51° | 24° | 38° | — | — |
Saint George, UT Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Saint George, UT Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Saint George, UT 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 Saint George, UT
Most pleasant months in Saint George, UT: April, May, October.