Weather on December 30
Modesto, CA
55 Years of Data
Avg High
54°F
Avg Low
39°F
Warmest
1996
57°F avg
Coldest
1978
32°F avg
About This Date
December 30th in Modesto, CA typically brings cool winter weather, with average highs around 54°F and lows near 39°F. Over 55 years of records, the warmest December 30th was in 1996 (57°F average), while the coldest was 1978 (32°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 33% of December 30th dates historically, with the wettest December 30th recording 1.88" of rain. The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for December 30th in Modesto, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 48° | 40° | 44° | — | — |
| 2024 | 57° | 44° | 51° | — | — |
| 2023 | 59° | 49° | 54° | 0.74" | — |
| 2022 | 59° | 49° | 54° | 0.18" | — |
| 2021 | 55° | 40° | 47° | — | — |
| 2020 | 54° | 31° | 43° | — | — |
| 2019 | 57° | 39° | 48° | — | — |
| 2018 | 56° | 34° | 45° | — | — |
| 2017 | 60° | 33° | 47° | — | — |
| 2016 | 58° | 36° | 47° | — | — |
| 2015 | 53° | 30° | 42° | — | — |
| 2014 | 58° | 38° | 48° | — | — |
| 2013 | 64° | 30° | 47° | — | — |
| 2012 | 51° | 32° | 42° | — | — |
| 2011 | 62° | 39° | 51° | — | — |
| 2010 | 50° | 33° | 42° | — | — |
| 2009 | 59° | 46° | 53° | 0.03" | — |
| 2008 | 49° | 39° | 44° | — | — |
| 2007 | 53° | 43° | 48° | — | — |
| 2006 | 57° | 30° | 44° | — | — |
| 2005 | 56° | 48° | 52° | 0.1" | — |
| 2004 | 53° | 48° | 51° | 1.88" | — |
| 2003 | 55° | 44° | 50° | 0.03" | — |
| 2002 | 51° | 39° | 45° | 0.08" | — |
| 2001 | 58° | 53° | 55° | 0.84" | — |
| 2000 | 56° | 30° | 43° | — | — |
| 1999 | 60° | 29° | 44° | — | — |
| 1998 | 59° | 31° | 45° | — | — |
| 1997 | 65° | 38° | 51° | — | — |
| 1996warmest | 60° | 54° | 57° | 0.58" | — |
| 1995 | 60° | 49° | 54° | 0.71" | — |
| 1994 | 54° | 32° | 43° | — | — |
| 1993 | 45° | 39° | 42° | — | — |
| 1992 | 57° | 40° | 48° | — | — |
| 1991 | 57° | 46° | 52° | 0.03" | — |
| 1990 | 52° | 29° | 40° | — | — |
| 1989 | 47° | 36° | 41° | — | — |
| 1988 | 41° | 28° | 35° | 0.43" | — |
| 1987 | 51° | 36° | 43° | — | — |
| 1986 | 45° | 39° | 42° | — | — |
| 1985 | 57° | 41° | 49° | 0.48" | — |
| 1984 | 46° | 36° | 41° | — | — |
| 1983 | 59° | 49° | 54° | 0.66" | — |
| 1982 | 49° | 27° | 38° | — | — |
| 1981 | 60° | 49° | 54° | 0.05" | — |
| 1980 | 45° | 41° | 43° | — | — |
| 1979 | 58° | 46° | 52° | 0.48" | — |
| 1978coldest | 38° | 27° | 32° | — | — |
| 1977 | 60° | 44° | 52° | — | — |
| 1976 | 52° | 43° | 47° | 1.57" | — |
| 1975 | 57° | 39° | 48° | — | — |
| 1974 | 48° | 32° | 40° | 0.03" | — |
| 1973 | 56° | 40° | 48° | — | — |
| 1972 | 55° | 30° | 43° | — | — |
| 1971 | 49° | 32° | 40° | — | — |
55 years of data from MODESTO AP