Weather on December 2
Rancho Cucamonga, CA
55 Years of Data
Avg High
68°F
Avg Low
45°F
Warmest
2017
65°F avg
Coldest
1973
46°F avg
About This Date
December 2nd in Rancho Cucamonga, CA typically brings mild winter weather, with average highs around 68°F and lows near 45°F. Over 41 years of records, the warmest December 2nd was in 2017 (65°F average), while the coldest was 1973 (46°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 10% of December 2nd dates historically, with the wettest December 2nd recording 3.35" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for December 2nd in Rancho Cucamonga, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 44° | 57° | — | — |
| 2024 | 75° | 47° | 61° | — | — |
| 2023 | 67° | 42° | 54° | — | — |
| 2022 | 60° | 48° | 54° | 0.13" | — |
| 2021 | 74° | 49° | 61° | — | — |
| 2020 | 81° | 45° | 63° | — | — |
| 2019 | 71° | 45° | 58° | — | — |
| 2018 | 61° | 44° | 52° | — | — |
| 2017warmest | 80° | 50° | 65° | — | — |
| 2016 | 61° | 45° | 53° | — | — |
| 2015 | 79° | 42° | 60° | — | — |
| 2014 | 63° | 56° | 59° | 3.35" | — |
| 2013 | 74° | 48° | 61° | — | — |
| 2012 | 64° | 58° | 61° | 0.36" | — |
| 2011 | 63° | 44° | 53° | — | — |
| 2010 | 76° | 41° | 58° | — | — |
| 2009 | 62° | 49° | 55° | — | — |
| 2008 | 63° | 50° | 56° | 0.03" | — |
| 2007 | 60° | 41° | 51° | — | — |
| 2006 | 76° | 49° | 62° | — | — |
| 2005 | 61° | 53° | 57° | — | — |
| 2004 | 63° | 31° | 47° | — | — |
| 2003 | 72° | 42° | 57° | — | — |
| 2002 | 69° | 45° | 57° | — | — |
| 2001 | 62° | 43° | 52° | — | — |
| 2000 | 73° | 45° | 59° | — | — |
| 1999 | 71° | 40° | 55° | — | — |
| 1998 | 59° | 50° | 55° | — | — |
| 1983 | 59° | 50° | 55° | — | — |
| 1982 | 62° | 43° | 52° | — | — |
| 1981 | 76° | 42° | 59° | — | — |
| 1980 | 60° | 43° | 51° | — | — |
| 1979 | 73° | 47° | 60° | — | — |
| 1978 | 60° | 38° | 49° | — | — |
| 1977 | 78° | 47° | 62° | — | — |
| 1976 | 73° | 45° | 59° | — | — |
| 1975 | 78° | 46° | 62° | — | — |
| 1974 | 64° | 37° | 51° | — | — |
| 1973coldest | 56° | 36° | 46° | — | — |
| 1972 | 71° | 44° | 58° | — | — |
| 1971 | 61° | 38° | 49° | — | — |
41 years of data from ONTARIO INTL AP