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 April 2021. For more information, please see Climatological Rankings.


California River Basin

Average Temperature Rankings, December 2020

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 2020
1-Month
45.5°F
(7.5°C)
43.1°F
(6.2°C)
2.4°F
(1.3°C)
106th Coolest Coolest since: 2019 1932, 1990
21st Warmest Warmest since: 2017 1958
Ties: 1962
Nov–Dec 2020
2-Month
48.2°F
(9.0°C)
46.3°F
(7.9°C)
1.9°F
(1.1°C)
106th Coolest Coolest since: 2016 1994
21st Warmest Warmest since: 2019 1995
Ties: 2002
Oct–Dec 2020
3-Month
54.2°F
(12.3°C)
50.7°F
(10.4°C)
3.5°F
(1.9°C)
123rd Coolest Coolest since: 2019 1916
4th Warmest Warmest since: 2017 1995
Ties: 1958, 2017
Sep–Dec 2020
4-Month
59.2°F
(15.1°C)
55.2°F
(12.9°C)
4.0°F
(2.2°C)
126th Coolest Coolest since: 2019 1916
1st Warmest Warmest to Date 2020
Aug–Dec 2020
5-Month
63.1°F
(17.3°C)
58.9°F
(14.9°C)
4.2°F
(2.4°C)
126th Coolest Coolest since: 2019 1916
1st Warmest Warmest to Date 2020
Jul–Dec 2020
6-Month
65.4°F
(18.6°C)
61.5°F
(16.4°C)
3.9°F
(2.2°C)
126th Coolest Coolest since: 2019 1916
1st Warmest Warmest to Date 2020
Jun–Dec 2020
7-Month
66.1°F
(18.9°C)
62.5°F
(16.9°C)
3.6°F
(2.0°C)
126th Coolest Coolest since: 2019 1916
1st Warmest Warmest to Date 2020
May–Dec 2020
8-Month
65.9°F
(18.8°C)
62.2°F
(16.8°C)
3.7°F
(2.0°C)
126th Coolest Coolest since: 2019 1916
1st Warmest Warmest to Date 2020
Apr–Dec 2020
9-Month
64.9°F
(18.3°C)
61.4°F
(16.3°C)
3.5°F
(2.0°C)
126th Coolest Coolest since: 2019 1916
1st Warmest Warmest since: 2014 2014, 2020
Ties: 2014
Mar–Dec 2020
10-Month
63.2°F
(17.3°C)
60.1°F
(15.6°C)
3.1°F
(1.7°C)
124th Coolest Coolest since: 2019 1912
3rd Warmest Warmest since: 2017 2014
Feb–Dec 2020
11-Month
61.9°F
(16.6°C)
58.7°F
(14.8°C)
3.2°F
(1.8°C)
124th Coolest Coolest since: 2019 1911
3rd Warmest Warmest since: 2017 2014
Ties: 2015
Jan–Dec 2020
12-Month
60.6°F
(15.9°C)
57.4°F
(14.1°C)
3.2°F
(1.8°C)
124th Coolest Coolest since: 2019 1911
3rd Warmest Warmest since: 2015 2014
Jul 2019–Dec 2020
18-Month
61.3°F
(16.3°C)
58.7°F
(14.8°C)
2.6°F
(1.5°C)
122nd Coolest Coolest since: 2019 1912
4th Warmest Warmest since: 2018 2015
Ties: 2017
Jan 2019–Dec 2020
24-Month
59.5°F
(15.3°C)
57.4°F
(14.1°C)
2.1°F
(1.2°C)
120th Coolest Coolest since: 2019 1912
6th Warmest Warmest since: 2018 2015
Jan 2018–Dec 2020
36-Month
59.7°F
(15.4°C)
57.4°F
(14.1°C)
2.3°F
(1.3°C)
119th Coolest Coolest since: 2019 1913
6th Warmest Warmest since: 2018 2016
Jan 2017–Dec 2020
48-Month
59.9°F
(15.5°C)
57.4°F
(14.1°C)
2.5°F
(1.4°C)
119th Coolest Coolest since: 2019 1912, 1914
5th Warmest Warmest since: 2018 2017
Jan 2016–Dec 2020
60-Month
59.9°F
(15.5°C)
57.3°F
(14.1°C)
2.6°F
(1.4°C)
119th Coolest Coolest since: 2019 1912
4th Warmest Warmest since: 2019 2018
Ties: 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published May 2021, retrieved on May 9, 2021 from https://www.ncdc.noaa.gov/cag/