Climate at a Glance

Regional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of March 2021. For more information, please see Climatological Rankings.


California River Basin

Average Temperature Rankings, December 2009

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 2009
1-Month
41.8°F
(5.4°C)
43.1°F
(6.2°C)
-1.3°F
(-0.8°C)
34th Coolest Coolest since: 2007 1932, 1990
93rd Warmest Warmest since: 2008 1958
Ties: 1923, 1954
Nov–Dec 2009
2-Month
46.4°F
(8.0°C)
46.4°F
(8.0°C)
0.0°F
(0.0°C)
61st Coolest Coolest since: 2004 1994
66th Warmest Warmest since: 2008 1995
Ties: 1925, 1936, 1973, 1975
Oct–Dec 2009
3-Month
50.3°F
(10.2°C)
50.8°F
(10.4°C)
-0.5°F
(-0.2°C)
44th Coolest Coolest since: 2004 1916
83rd Warmest Warmest since: 2008 1995
Ties: 1923, 1932, 1956, 2000
Sep–Dec 2009
4-Month
56.0°F
(13.3°C)
55.2°F
(12.9°C)
0.8°F
(0.4°C)
87th Coolest Coolest since: 2007 1916
40th Warmest Warmest since: 2008 2020
Ties: 1955, 1963, 1966, 1974, 1987, 2013
Aug–Dec 2009
5-Month
59.7°F
(15.4°C)
58.9°F
(14.9°C)
0.8°F
(0.5°C)
88th Coolest Coolest since: 2007 1916
39th Warmest Warmest since: 2008 2020
Ties: 1955, 1987, 1997, 2010, 2013
Jul–Dec 2009
6-Month
62.7°F
(17.1°C)
61.5°F
(16.4°C)
1.2°F
(0.7°C)
95th Coolest Coolest since: 2007 1916
32nd Warmest Warmest since: 2008 2020
Ties: 2013
Jun–Dec 2009
7-Month
63.4°F
(17.4°C)
62.5°F
(16.9°C)
0.9°F
(0.5°C)
94th Coolest Coolest since: 2007 1916
33rd Warmest Warmest since: 2008 2020
Ties: 1936, 2007, 2010
May–Dec 2009
8-Month
63.8°F
(17.7°C)
62.3°F
(16.8°C)
1.5°F
(0.9°C)
109th Coolest Coolest since: 2007 1916
18th Warmest Warmest since: 2008 2020
Apr–Dec 2009
9-Month
62.7°F
(17.1°C)
61.3°F
(16.3°C)
1.4°F
(0.8°C)
104th Coolest Coolest since: 2007 1916
23rd Warmest Warmest since: 2008 2014, 2020
Ties: 1997, 2007
Mar–Dec 2009
10-Month
61.4°F
(16.3°C)
60.1°F
(15.6°C)
1.3°F
(0.7°C)
104th Coolest Coolest since: 2006 1912
23rd Warmest Warmest since: 2008 2014
Ties: 1936, 1940, 1950, 1958, 1988, 1989, 2019
Feb–Dec 2009
11-Month
59.9°F
(15.5°C)
58.7°F
(14.8°C)
1.2°F
(0.7°C)
99th Coolest Coolest since: 2006 1911
28th Warmest Warmest since: 2008 2014
Ties: 1936, 2005, 2006
Jan–Dec 2009
12-Month
58.8°F
(14.9°C)
57.3°F
(14.1°C)
1.5°F
(0.8°C)
104th Coolest Coolest since: 2006 1911
23rd Warmest Warmest since: 2008 2014
Ties: 1926, 1940, 2000, 2002
Jul 2008–Dec 2009
18-Month
60.5°F
(15.8°C)
58.8°F
(14.9°C)
1.7°F
(0.9°C)
113th Coolest Coolest since: 2008 1912
13th Warmest Warmest since: 2004 2015
Ties: 1981, 1997, 2004
Jan 2008–Dec 2009
24-Month
58.9°F
(14.9°C)
57.4°F
(14.1°C)
1.5°F
(0.8°C)
112th Coolest Coolest since: 2008 1912
14th Warmest Warmest since: 2008 2015
Ties: 1959, 2001, 2008
Jan 2007–Dec 2009
36-Month
58.9°F
(14.9°C)
57.4°F
(14.1°C)
1.5°F
(0.8°C)
113th Coolest Coolest since: 2008 1913
12th Warmest Warmest since: 2005 2016
Ties: 2002
Jan 2006–Dec 2009
48-Month
58.8°F
(14.9°C)
57.3°F
(14.1°C)
1.5°F
(0.8°C)
111th Coolest Coolest since: 2008 1912, 1914
13th Warmest Warmest since: 2008 2017
Ties: 2007, 2008
Jan 2005–Dec 2009
60-Month
58.8°F
(14.9°C)
57.4°F
(14.1°C)
1.4°F
(0.8°C)
111th Coolest Coolest since: 2008 1912
12th Warmest Warmest since: 2008 2018
Ties: 2003, 2008

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published April 2021, retrieved on May 6, 2021 from https://www.ncdc.noaa.gov/cag/