Weather on December 21
Glendale, AZ
55 Years of Data
Avg High
65°F
Avg Low
42°F
Warmest
1977
61°F avg
Coldest
1990
41°F avg
About This Date
December 21st in Glendale, AZ typically brings mild winter weather, with average highs around 65°F and lows near 42°F. Over 53 years of records, the warmest December 21st was in 1977 (61°F average), while the coldest was 1990 (41°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 8% of December 21st dates historically. 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 21st in Glendale, AZ? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 46° | 59° | — | — |
| 2024 | — | 47° | — | — | — |
| 2023 | 74° | 46° | 60° | — | — |
| 2022 | 59° | 36° | 47° | — | — |
| 2021 | 63° | 45° | 54° | — | — |
| 2020 | 72° | 38° | 55° | — | — |
| 2019 | 68° | 37° | 53° | — | — |
| 2017 | 65° | 46° | 55° | — | — |
| 2016 | — | 59° | — | 0.13" | — |
| 2015 | 61° | 38° | 49° | — | — |
| 2014 | 63° | 42° | 52° | — | — |
| 2012 | 69° | 37° | 53° | — | — |
| 2011 | 61° | 41° | 51° | — | — |
| 2010 | 69° | 54° | 61° | — | — |
| 2009 | 68° | 45° | 56° | — | — |
| 2008 | 60° | 36° | 48° | — | — |
| 2007 | 62° | 47° | 54° | 0.05" | — |
| 2006 | 55° | 32° | 44° | — | — |
| 2005 | 72° | 43° | 57° | — | — |
| 2004 | 67° | 43° | 55° | — | — |
| 2003 | 73° | 48° | 61° | — | — |
| 2002 | 56° | 35° | 45° | 0.1" | — |
| 2001 | 70° | 41° | 55° | — | — |
| 2000 | 69° | 37° | 53° | — | — |
| 1999 | 66° | 37° | 52° | — | — |
| 1998 | 65° | 42° | 53° | — | — |
| 1997 | 60° | 47° | 53° | — | — |
| 1996 | 68° | 40° | 54° | — | — |
| 1995 | 63° | 40° | 51° | — | — |
| 1994 | 74° | 47° | 60° | — | — |
| 1993 | 60° | 46° | 53° | — | — |
| 1992 | 64° | 37° | 51° | — | — |
| 1991 | 60° | 49° | 54° | — | — |
| 1990coldest | 46° | 36° | 41° | — | — |
| 1989 | 65° | 43° | 54° | — | — |
| 1988 | 62° | 45° | 53° | — | — |
| 1987 | 65° | 42° | 53° | — | — |
| 1986 | 66° | 43° | 54° | — | — |
| 1985 | 77° | 45° | 61° | — | — |
| 1984 | 61° | 35° | 48° | — | — |
| 1983 | 62° | 41° | 52° | — | — |
| 1982 | 68° | 39° | 54° | — | — |
| 1981 | 69° | 40° | 54° | — | — |
| 1980 | 73° | 40° | 56° | — | — |
| 1979 | 65° | 47° | 56° | 0.05" | — |
| 1978 | 59° | 33° | 46° | — | — |
| 1977warmest | 68° | 54° | 61° | — | — |
| 1976 | 67° | 44° | 55° | — | — |
| 1975 | 57° | 51° | 54° | — | — |
| 1974 | 69° | 34° | 51° | — | — |
| 1973 | 69° | 30° | 50° | — | — |
| 1972 | 74° | 38° | 56° | — | — |
| 1971 | 68° | 36° | 52° | — | — |
53 years of data from ALHAMBRA