Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

California

Average Temperature Rankings, December 1999

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  • Record Coolest
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1999
1-Month
45.3°F
(7.4°C)
43.1°F
(6.2°C)
2.2°F
(1.2°C)
105th Coolest
Coolest since:
1932, 1990
23rd Warmest
Warmest since:
1958
Nov–Dec 1999
2-Month
49.2°F
(9.6°C)
46.4°F
(8.0°C)
2.8°F
(1.6°C)
119th Coolest
Coolest since:
1994
9th Warmest
Warmest since:
1995
Ties: 1980, 1981, 2005, 2021
Oct–Dec 1999
3-Month
54.0°F
(12.2°C)
50.7°F
(10.4°C)
3.3°F
(1.8°C)
121st Coolest
Coolest since:
1916
7th Warmest
Warmest since:
1995, 2014
Sep–Dec 1999
4-Month
58.2°F
(14.6°C)
55.2°F
(12.9°C)
3.0°F
(1.7°C)
124th Coolest
Coolest since:
1916
4th Warmest
Warmest since:
2020
Ties: 1958, 2017
Aug–Dec 1999
5-Month
61.1°F
(16.2°C)
58.9°F
(14.9°C)
2.2°F
(1.3°C)
119th Coolest
Coolest since:
1916
9th Warmest
Warmest since:
2020
Ties: 1950, 1991, 2021
Jul–Dec 1999
6-Month
63.1°F
(17.3°C)
61.5°F
(16.4°C)
1.6°F
(0.9°C)
108th Coolest
Coolest since:
1916
20th Warmest
Warmest since:
2020
Ties: 1933, 1939, 1988, 2002, 2015
Jun–Dec 1999
7-Month
63.8°F
(17.7°C)
62.5°F
(16.9°C)
1.3°F
(0.8°C)
102nd Coolest
Coolest since:
1916
26th Warmest
Warmest since:
2020
Ties: 1939, 1988
May–Dec 1999
8-Month
63.4°F
(17.4°C)
62.3°F
(16.8°C)
1.1°F
(0.6°C)
101st Coolest
Coolest since:
1916
27th Warmest
Warmest since:
2020
Ties: 1929, 1936, 1959, 1967, 1988, 2019
Apr–Dec 1999
9-Month
62.0°F
(16.7°C)
61.3°F
(16.3°C)
0.7°F
(0.4°C)
84th Coolest
Coolest since:
1916
44th Warmest
Warmest since:
2014, 2020
Ties: 1910, 1931, 1990, 1991
Mar–Dec 1999
10-Month
60.6°F
(15.9°C)
60.1°F
(15.6°C)
0.5°F
(0.3°C)
80th Coolest
Coolest since:
1912
48th Warmest
Warmest since:
2014
Ties: 1969, 1974, 1977
Feb–Dec 1999
11-Month
59.1°F
(15.1°C)
58.7°F
(14.8°C)
0.4°F
(0.3°C)
78th Coolest
Coolest since:
1911
50th Warmest
Warmest since:
2014
Ties: 1947, 1974, 1993, 1994
Jan–Dec 1999
12-Month
58.0°F
(14.4°C)
57.4°F
(14.1°C)
0.6°F
(0.3°C)
86th Coolest
Coolest since:
1911
42nd Warmest
Warmest since:
2014
Ties: 1960, 1966, 1977, 1990, 1994
Jul 1998–Dec 1999
18-Month
59.2°F
(15.1°C)
58.7°F
(14.8°C)
0.5°F
(0.3°C)
77th Coolest
Coolest since:
1912
50th Warmest
Warmest since:
2015
Ties: 1961, 1977, 1993
Jan 1998–Dec 1999
24-Month
57.3°F
(14.1°C)
57.3°F
(14.1°C)
0.0°F
(0.0°C)
54th Coolest
Coolest since:
1912
73rd Warmest
Warmest since:
2015
Ties: 1928, 1973
Jan 1997–Dec 1999
36-Month
57.9°F
(14.4°C)
57.3°F
(14.1°C)
0.6°F
(0.3°C)
84th Coolest
Coolest since:
1913
42nd Warmest
Warmest since:
2016
Ties: 1982
Jan 1996–Dec 1999
48-Month
58.3°F
(14.6°C)
57.3°F
(14.1°C)
1.0°F
(0.5°C)
98th Coolest
Coolest since:
1912, 1914
27th Warmest
Warmest since:
2017
Ties: 1988, 1990, 1993, 1994
Jan 1995–Dec 1999
60-Month
58.5°F
(14.7°C)
57.4°F
(14.1°C)
1.1°F
(0.6°C)
104th Coolest
Coolest since:
1912, 1913
20th Warmest
Warmest since:
2018
Ties: 1998, 2012

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