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 1899

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1899
1-Month
70.5°F
(21.4°C)
68.5°F
(20.3°C)
2.0°F
(1.1°C)
94th Coolest Coolest since: 1898 1986
33rd Warmest Warmest to Date 2020
Aug–Sep 1899
2-Month
69.7°F
(20.9°C)
71.1°F
(21.7°C)
-1.4°F
(-0.8°C)
16th Coolest Coolest since: 1896 1900
111th Warmest Warmest since: 1898 2020
Ties: 1896
Jul–Sep 1899
3-Month
71.1°F
(21.7°C)
72.3°F
(22.4°C)
-1.2°F
(-0.7°C)
17th Coolest Coolest since: 1895 1900
110th Warmest Warmest since: 1898 2020
Ties: 1902, 1914, 1918, 1920
Jun–Sep 1899
4-Month
70.5°F
(21.4°C)
71.3°F
(21.8°C)
-0.8°F
(-0.4°C)
23rd Coolest Coolest since: 1895 1907
104th Warmest Warmest since: 1898 2020
Ties: 1901, 1915, 1930, 1943, 1964
May–Sep 1899
5-Month
67.7°F
(19.8°C)
69.2°F
(20.7°C)
-1.5°F
(-0.9°C)
7th Coolest Coolest to Date 1907
120th Warmest Warmest since: 1898 2020
Ties: 1930, 1948
Apr–Sep 1899
6-Month
65.5°F
(18.6°C)
66.6°F
(19.2°C)
-1.1°F
(-0.6°C)
16th Coolest Coolest to Date 1912
111th Warmest Warmest since: 1898 2020
Ties: 1902, 1908, 1915, 1920, 1975
Mar–Sep 1899
7-Month
63.0°F
(17.2°C)
64.1°F
(17.8°C)
-1.1°F
(-0.6°C)
18th Coolest Coolest to Date 1912
109th Warmest Warmest since: 1898 2014
Ties: 1908, 1927, 1941, 1982
Feb–Sep 1899
8-Month
60.7°F
(15.9°C)
61.8°F
(16.6°C)
-1.1°F
(-0.7°C)
19th Coolest Coolest to Date 1911
108th Warmest Warmest since: 1898 2015
Jan–Sep 1899
9-Month
58.8°F
(14.9°C)
59.6°F
(15.3°C)
-0.8°F
(-0.4°C)
26th Coolest Coolest since: 1895 1903, 1911, 1917
101st Warmest Warmest since: 1898 2015
Ties: 1915, 1942, 1952
Dec 1898–Sep 1899
10-Month
57.1°F
(13.9°C)
58.0°F
(14.4°C)
-0.9°F
(-0.5°C)
22nd Coolest Coolest to Date 1917, 1933
104th Warmest Warmest since: 1898 2015
Ties: 1902, 1916, 1965
Nov 1898–Sep 1899
11-Month
56.3°F
(13.5°C)
57.2°F
(14.0°C)
-0.9°F
(-0.5°C)
20th Coolest Coolest to Date 1917
106th Warmest Warmest since: 1898 2015
Ties: 1909, 1916, 1919
Oct 1898–Sep 1899
12-Month
56.5°F
(13.6°C)
57.4°F
(14.1°C)
-0.9°F
(-0.5°C)
21st Coolest Coolest since: 1898 1917
105th Warmest Warmest since: 1898 2015
Ties: 1898
Apr 1898–Sep 1899
18-Month
60.0°F
(15.6°C)
60.5°F
(15.8°C)
-0.5°F
(-0.2°C)
35th Coolest Coolest since: 1897 1917
91st Warmest Warmest since: 1898 2015
Ties: 1896, 1952, 1956
Oct 1897–Sep 1899
24-Month
56.5°F
(13.6°C)
57.4°F
(14.1°C)
-0.9°F
(-0.5°C)
11th Coolest Coolest to Date 1913, 1917, 1949
114th Warmest Warmest since: 1898 2015
Ties: 1922, 1923
Oct 1896–Sep 1899
36-Month
56.7°F
(13.7°C)
57.4°F
(14.1°C)
-0.7°F
(-0.4°C)
15th Coolest Coolest to Date 1913
109th Warmest Warmest since: 1898 2016
Ties: 1900, 1904, 1908, 1910, 1915
Oct 1895–Sep 1899
48-Month
56.8°F
(13.8°C)
57.4°F
(14.1°C)
-0.6°F
(-0.3°C)
20th Coolest Coolest to Date 1913
103rd Warmest Warmest to Date 2017, 2018
Ties: 1900, 1901, 1904, 1925, 1951, 1955, 1965

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published April 2021, retrieved on April 19, 2021 from https://www.ncdc.noaa.gov/cag/