National Weather Service United States Department of Commerce
December 2018 Review
Updated: 2:30 AM January 1, 2019
  Phoenix, AZ Yuma, AZ
  2018 Normal
1981-2010
Record
1895-2017
2018 Normal
1981-2010
Record
1876-2017
Average High
Temperature
66.5 °F
Tied 60th Warmest
66.0 °F Warmest
74.9 °F in 1980

Coolest
59.2 °F in 1909
67.0 °F
Tied 52nd Coolest
68.3 °F Warmest
78.5 °F in 1950

Coolest
60.9 °F in 1909
Average
Temperature
55.7 °F
Tied 36th Warmest
55.4 °F Warmest
61.3 °F in 1980

Coolest
46.6 °F in 1911
56.8 °F
Tied 63rd Warmest
57.4 °F Warmest
63.0 °F in 1950

Coolest
49.4 °F in 1911
Average Low
Temperature
45.0 °F
Tied 20th Warmest
44.8 °F Warmest
48.7 °F in 2010

Coolest
32.6 °F in 1916
46.8 °F
Tied 29th Warmest
46.6 °F Warmest
50.2 °F in 1890

Coolest
34.6 °F in 1911
Precipitation 0.19"
Tied 36th Driest
0.88" Wettest
3.98" in 1967
0.58"
Tied 41st Wettest
0.51" Wettest
4.43" in 1926
Daily
Records
Phoenix Daily Records for December 2018

 

None
 

 

Yuma Daily Records for  December 2018

 

None