Weather on December 18
Saint George, UT
55 Years of Data
About This Date
December 18th in Saint George, UT typically brings cool winter weather, with average highs around 52°F and lows near 29°F. Over 55 years of records, the warmest December 18th was in 1980 (49°F average), while the coldest was 2016 (29°F) — a 20°F range across recorded history. Precipitation has occurred on 20% of recorded December 18th dates, with snow falling 2% of the time. 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 December 18th in Saint George, UT? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 61° | 35° | 48° | — | — |
| 2024 | 55° | 30° | 43° | — | — |
| 2023 | 56° | 29° | 42° | — | — |
| 2022 | 45° | 19° | 32° | — | — |
| 2021 | 48° | 25° | 36° | — | — |
| 2020 | 54° | 43° | 48° | 0.02" | — |
| 2019 | 44° | 23° | 34° | — | — |
| 2018 | 53° | 29° | 41° | — | — |
| 2017 | 50° | 24° | 37° | — | — |
| 2016coldest | 39° | 19° | 29° | — | — |
| 2015 | 44° | 25° | 34° | — | — |
| 2014 | 48° | 35° | 42° | 0.13" | — |
| 2013 | 54° | 27° | 40° | — | — |
| 2012 | 44° | 39° | 42° | 0.25" | 0.9" |
| 2011 | 48° | 35° | 41° | — | — |
| 2010 | 48° | 42° | 45° | 0.41" | — |
| 2009 | 59° | 33° | 46° | — | — |
| 2008 | 37° | 31° | 34° | 0.88" | — |
| 2007 | 54° | 31° | 42° | — | — |
| 2006 | 43° | 26° | 34° | — | — |
| 2005 | 46° | 28° | 37° | — | — |
| 2004 | 59° | 32° | 46° | — | — |
| 2003 | 54° | 23° | 38° | — | — |
| 2002 | 47° | 33° | 40° | 0.51" | — |
| 2001 | 50° | 23° | 37° | — | — |
| 2000 | 56° | 28° | 42° | — | — |
| 1999 | 59° | 27° | 43° | — | — |
| 1998 | 62° | 29° | 45° | — | — |
| 1997 | 53° | 27° | 40° | — | — |
| 1996 | 43° | 19° | 31° | — | — |
| 1995 | 55° | 24° | 40° | — | — |
| 1994 | 62° | 23° | 43° | — | — |
| 1993 | 50° | 20° | 35° | — | — |
| 1992 | 43° | 31° | 37° | 0.06" | — |
| 1991 | 46° | 32° | 39° | 0.18" | — |
| 1990 | 43° | 21° | 32° | — | — |
| 1989 | 56° | 23° | 39° | — | — |
| 1988 | 63° | 31° | 47° | — | — |
| 1987 | 53° | 30° | 42° | 0.01" | — |
| 1986 | 54° | 27° | 40° | — | — |
| 1985 | 58° | 29° | 43° | — | — |
| 1984 | 32° | 49° | 40° | — | — |
| 1983 | 57° | 29° | 43° | — | — |
| 1982 | 56° | 25° | 40° | — | — |
| 1981 | 59° | 24° | 42° | — | — |
| 1980warmest | 68° | 31° | 49° | — | — |
| 1979 | 68° | 22° | 45° | — | — |
| 1978 | 52° | 41° | 46° | 0.23" | — |
| 1977 | 54° | 41° | 47° | — | — |
| 1976 | 60° | 23° | 42° | — | — |
| 1975 | 56° | 22° | 39° | — | — |
| 1974 | 53° | 28° | 41° | — | — |
| 1973 | 56° | 30° | 43° | — | — |
| 1972 | 56° | 23° | 39° | 0.01" | — |
| 1971 | 45° | 21° | 33° | — | — |
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.