Weather on December 22
Rancho Cucamonga, CA
55 Years of Data
About This Date
December 22nd in Rancho Cucamonga, CA typically brings mild winter weather, with average highs around 64°F and lows near 43°F. Over 41 years of records, the warmest December 22nd was in 1999 (63°F average), while the coldest was 1998 (41°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 20% of December 22nd dates historically, with the wettest December 22nd recording 2.9" of rain. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for December 22nd in Rancho Cucamonga, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 50° | 63° | — | — |
| 2024 | 67° | 49° | 58° | — | — |
| 2023 | 64° | 52° | 58° | 0.91" | — |
| 2022 | 69° | 41° | 55° | — | — |
| 2021 | 67° | 45° | 56° | — | — |
| 2020 | 72° | 47° | 59° | — | — |
| 2019 | 68° | 48° | 58° | — | — |
| 2018 | 72° | 44° | 58° | — | — |
| 2017 | 65° | 35° | 50° | — | — |
| 2016 | 57° | 50° | 54° | 1.02" | — |
| 2015 | 58° | 50° | 54° | 1.04" | — |
| 2014 | 77° | 47° | 62° | — | — |
| 2013 | 69° | 40° | 54° | — | — |
| 2012 | 61° | 37° | 49° | — | — |
| 2011 | 58° | 38° | 48° | — | — |
| 2010 | 56° | 45° | 50° | — | — |
| 2009 | 59° | 43° | 51° | 0.38" | — |
| 2008 | 51° | 43° | 47° | 0.08" | — |
| 2007 | 64° | 37° | 51° | — | — |
| 2006 | 63° | 41° | 52° | — | — |
| 2005 | 76° | 51° | 63° | — | — |
| 2004 | 63° | 41° | 52° | — | — |
| 2003 | 73° | 41° | 57° | — | — |
| 2002 | 58° | 45° | 51° | — | — |
| 2001 | 58° | 41° | 49° | — | — |
| 2000 | 69° | 39° | 54° | — | — |
| 1999warmest | 68° | 57° | 63° | — | — |
| 1998coldest | 54° | 28° | 41° | — | — |
| 1983 | 57° | 46° | 52° | — | — |
| 1982 | 58° | 43° | 50° | 2.64" | — |
| 1981 | 65° | 36° | 50° | — | — |
| 1980 | 74° | 43° | 58° | — | — |
| 1979 | 58° | 37° | 47° | — | — |
| 1978 | 67° | 40° | 53° | — | — |
| 1977 | 64° | 48° | 56° | 0.25" | — |
| 1976 | 67° | 38° | 52° | — | — |
| 1975 | 64° | 40° | 52° | — | — |
| 1974 | 60° | 36° | 48° | — | — |
| 1973 | 57° | 40° | 48° | — | — |
| 1972 | 67° | 45° | 56° | — | — |
| 1971 | 56° | 45° | 50° | 2.9" | — |
Rancho Cucamonga, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Rancho Cucamonga, CA Monthly Precipitation
Average rainfall per month, in inches.
Rancho Cucamonga, CA 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 Rancho Cucamonga, CA
Rancho Cucamonga, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.