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, September 2018

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 2018
1-Month
71.1°F
(21.7°C)
68.5°F
(20.3°C)
2.6°F
(1.4°C)
110th Coolest Coolest since: 2017 1986
17th Warmest Warmest since: 2015 2020
Aug–Sep 2018
2-Month
73.8°F
(23.2°C)
71.2°F
(21.8°C)
2.6°F
(1.4°C)
118th Coolest Coolest since: 2016 1900
9th Warmest Warmest since: 2017 2020
Ties: 1958
Jul–Sep 2018
3-Month
75.7°F
(24.3°C)
72.3°F
(22.4°C)
3.4°F
(1.9°C)
125th Coolest Coolest since: 2017 1900
2nd Warmest Warmest to Date 2020
Jun–Sep 2018
4-Month
74.6°F
(23.7°C)
71.3°F
(21.8°C)
3.3°F
(1.9°C)
124th Coolest Coolest since: 2016 1907
3rd Warmest Warmest since: 2017 2020
May–Sep 2018
5-Month
72.3°F
(22.4°C)
69.2°F
(20.7°C)
3.1°F
(1.7°C)
123rd Coolest Coolest since: 2016 1907
4th Warmest Warmest since: 2017 2020
Ties: 2001
Apr–Sep 2018
6-Month
69.8°F
(21.0°C)
66.7°F
(19.3°C)
3.1°F
(1.7°C)
124th Coolest Coolest since: 2017 1912
3rd Warmest Warmest since: 2017 2020
Ties: 2017
Mar–Sep 2018
7-Month
66.8°F
(19.3°C)
64.1°F
(17.8°C)
2.7°F
(1.5°C)
119th Coolest Coolest since: 2012 1912
8th Warmest Warmest since: 2017 2014
Ties: 1934
Feb–Sep 2018
8-Month
64.3°F
(17.9°C)
61.8°F
(16.6°C)
2.5°F
(1.3°C)
118th Coolest Coolest since: 2012 1911
9th Warmest Warmest since: 2017 2015
Jan–Sep 2018
9-Month
62.6°F
(17.0°C)
59.6°F
(15.3°C)
3.0°F
(1.7°C)
122nd Coolest Coolest since: 2017 1903, 1911, 1917
5th Warmest Warmest since: 2016 2015
Dec 2017–Sep 2018
10-Month
61.0°F
(16.1°C)
57.9°F
(14.4°C)
3.1°F
(1.7°C)
123rd Coolest Coolest since: 2017 1917, 1933
3rd Warmest Warmest since: 2015 2015
Nov 2017–Sep 2018
11-Month
60.4°F
(15.8°C)
57.2°F
(14.0°C)
3.2°F
(1.8°C)
123rd Coolest Coolest since: 2017 1917
3rd Warmest Warmest since: 2015 2015
Oct 2017–Sep 2018
12-Month
60.5°F
(15.8°C)
57.4°F
(14.1°C)
3.1°F
(1.7°C)
123rd Coolest Coolest since: 2017 1917
3rd Warmest Warmest since: 2015 2015
Apr 2017–Sep 2018
18-Month
63.6°F
(17.6°C)
60.5°F
(15.8°C)
3.1°F
(1.8°C)
124th Coolest Coolest since: 2017 1917
2nd Warmest Warmest since: 2015 2015
Oct 2016–Sep 2018
24-Month
60.2°F
(15.7°C)
57.4°F
(14.1°C)
2.8°F
(1.6°C)
122nd Coolest Coolest since: 2017 1913, 1917, 1949
3rd Warmest Warmest since: 2016 2015
Oct 2015–Sep 2018
36-Month
60.1°F
(15.6°C)
57.4°F
(14.1°C)
2.7°F
(1.5°C)
120th Coolest Coolest since: 2014 1913
4th Warmest Warmest since: 2017 2016
Oct 2014–Sep 2018
48-Month
60.5°F
(15.8°C)
57.4°F
(14.1°C)
3.1°F
(1.7°C)
122nd Coolest Coolest since: 2017 1913
1st Warmest Warmest since: 2017 2017, 2018
Ties: 2017
Oct 2013–Sep 2018
60-Month
60.5°F
(15.8°C)
57.4°F
(14.1°C)
3.1°F
(1.7°C)
121st Coolest Coolest since: 2017 1913
1st Warmest Warmest to Date 2018

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published April 2021, retrieved on April 17, 2021 from https://www.ncdc.noaa.gov/cag/