Weather on December 18
Modesto, CA
55 Years of Data
Avg High
54°F
Avg Low
38°F
Warmest
1991
55°F avg
Coldest
1985
36°F avg
About This Date
December 18th in Modesto, CA typically brings cool winter weather, with average highs around 54°F and lows near 38°F. Over 55 years of records, the warmest December 18th was in 1991 (55°F average), while the coldest was 1985 (36°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 24% of December 18th dates historically, with the wettest December 18th recording 1.68" of rain. 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 Modesto, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 47° | 51° | — | — |
| 2024 | 52° | 49° | 50° | — | — |
| 2023 | 57° | 47° | 52° | 1.68" | — |
| 2022 | 43° | 34° | 38° | — | — |
| 2021 | 46° | 33° | 40° | — | — |
| 2020 | 54° | 35° | 44° | — | — |
| 2019 | 61° | 42° | 51° | 0.03" | — |
| 2018 | 62° | 38° | 50° | — | — |
| 2017 | 63° | 33° | 48° | — | — |
| 2016 | 50° | 31° | 41° | — | — |
| 2015 | 60° | 33° | 47° | 0.13" | — |
| 2014 | 61° | 47° | 54° | 0.13" | — |
| 2013 | 65° | 44° | 54° | — | — |
| 2012 | 53° | 40° | 46° | — | — |
| 2011 | 50° | 30° | 40° | — | — |
| 2010 | 58° | 53° | 55° | 0.13" | — |
| 2009 | 52° | 44° | 48° | — | — |
| 2008 | 52° | 29° | 40° | — | — |
| 2007 | 57° | 45° | 51° | 1.35" | — |
| 2006 | 51° | 32° | 42° | — | — |
| 2005 | 58° | 48° | 53° | 1.4" | — |
| 2004 | 45° | 38° | 41° | — | — |
| 2003 | 59° | 36° | 47° | — | — |
| 2002 | 56° | 35° | 45° | — | — |
| 2001 | 55° | 38° | 46° | — | — |
| 2000 | 51° | 32° | 42° | — | — |
| 1999 | 58° | 33° | 45° | — | — |
| 1998 | 64° | 36° | 50° | — | — |
| 1997 | 58° | 43° | 50° | — | — |
| 1996 | 48° | 41° | 45° | — | — |
| 1995 | 49° | 44° | 46° | 0.76" | — |
| 1994 | 54° | 43° | 48° | — | — |
| 1993 | 50° | 34° | 42° | — | — |
| 1992 | 50° | 35° | 43° | — | — |
| 1991warmest | 63° | 47° | 55° | — | — |
| 1990 | 57° | 35° | 46° | — | — |
| 1989 | 48° | 31° | 39° | — | — |
| 1988 | 53° | 38° | 45° | 0.03" | — |
| 1987 | 53° | 33° | 43° | — | — |
| 1986 | 52° | 45° | 48° | — | — |
| 1985coldest | 42° | 31° | 36° | — | — |
| 1984 | 50° | 34° | 42° | 0.2" | — |
| 1983 | 51° | 42° | 47° | — | — |
| 1982 | 58° | 39° | 48° | — | — |
| 1981 | 54° | 45° | 49° | 1.14" | — |
| 1980 | 63° | 40° | 51° | — | — |
| 1979 | 46° | 34° | 40° | — | — |
| 1978 | 49° | 42° | 45° | 0.71" | — |
| 1977 | 54° | 37° | 45° | — | — |
| 1976 | 63° | 31° | 47° | — | — |
| 1975 | 58° | 30° | 44° | — | — |
| 1974 | 47° | 38° | 42° | — | — |
| 1973 | 55° | 39° | 47° | — | — |
| 1972 | 53° | 43° | 48° | 0.08" | — |
| 1971 | 51° | 28° | 40° | — | — |
55 years of data from MODESTO AP