Weather on December 18
Tempe, AZ
55 Years of Data
Avg High
70°F
Avg Low
40°F
Warmest
1988
63°F avg
Coldest
1990
46°F avg
About This Date
December 18th in Tempe, AZ typically brings pleasant winter weather, with average highs around 70°F and lows near 40°F — a 30°F daily swing. Over 55 years of records, the warmest December 18th was in 1988 (63°F average), while the coldest was 1990 (46°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 13% of December 18th dates historically, with the wettest December 18th recording 3.76" 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 Tempe, AZ? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 43° | 60° | — | — |
| 2024 | 84° | 37° | 61° | — | — |
| 2023 | — | 39° | — | — | — |
| 2022 | 65° | 39° | 52° | — | — |
| 2021 | 70° | 28° | 49° | — | — |
| 2020 | 66° | 34° | 50° | — | — |
| 2019 | 69° | 46° | 58° | — | — |
| 2018 | 70° | 41° | 55° | — | — |
| 2017 | 68° | 41° | 55° | — | — |
| 2016 | 65° | 33° | 49° | — | — |
| 2015 | 73° | 28° | 51° | — | — |
| 2014 | 64° | 48° | 56° | 0.03" | — |
| 2013 | 79° | 42° | 60° | — | — |
| 2012 | 64° | 34° | 49° | — | — |
| 2011 | 62° | 46° | 54° | 0.25" | — |
| 2010 | 72° | 43° | 57° | — | — |
| 2009 | 73° | 39° | 56° | — | — |
| 2008 | — | 50° | — | 0.28" | — |
| 2007 | 70° | 33° | 51° | — | — |
| 2006 | 62° | 42° | 52° | — | — |
| 2005 | 66° | 39° | 53° | — | — |
| 2004 | 75° | 40° | 57° | — | — |
| 2003 | 75° | 39° | 57° | — | — |
| 2002 | 63° | 47° | 55° | — | — |
| 2001 | 67° | 35° | 51° | — | — |
| 2000 | 70° | 42° | 56° | — | — |
| 1999 | 75° | 40° | 57° | — | — |
| 1998 | 69° | 49° | 59° | — | — |
| 1997 | 69° | 44° | 57° | — | — |
| 1996 | 66° | 31° | 48° | — | — |
| 1995 | 66° | 39° | 53° | — | — |
| 1994 | 78° | 41° | 60° | — | — |
| 1993 | 70° | 40° | 55° | — | — |
| 1992 | 56° | 38° | 47° | 0.13" | — |
| 1991 | 68° | 55° | 62° | 1.37" | — |
| 1990coldest | 58° | 34° | 46° | — | — |
| 1989 | 67° | 36° | 51° | — | — |
| 1988warmest | 79° | 48° | 63° | — | — |
| 1987 | 61° | 46° | 53° | 2.51" | — |
| 1986 | 68° | 46° | 57° | — | — |
| 1985 | 75° | 40° | 57° | — | — |
| 1984 | 64° | 40° | 52° | — | — |
| 1983 | 71° | 43° | 57° | — | — |
| 1982 | 71° | 40° | 55° | — | — |
| 1981 | 75° | 43° | 59° | — | — |
| 1980 | 85° | 40° | 62° | — | — |
| 1979 | 77° | 35° | 56° | — | — |
| 1978 | 59° | 48° | 54° | 3.76" | — |
| 1977 | 70° | 34° | 52° | — | — |
| 1976 | 76° | 42° | 59° | — | — |
| 1975 | 70° | 34° | 52° | — | — |
| 1974 | 70° | 30° | 50° | — | — |
| 1973 | 75° | 32° | 54° | — | — |
| 1972 | 67° | 36° | 51° | — | — |
| 1971 | 62° | 34° | 48° | — | — |
55 years of data from TEMPE ASU