Regional Rankings

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

Great Basin

Average Temperature Rankings, September 1900

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1900
1-Month
55.6°F
(13.1°C)
60.8°F
(16.0°C)
-5.2°F
(-2.9°C)
3rd Coolest
Coolest since:
1912
126th Warmest
Warmest since:
2022
Ties: 1986
Aug–Sep 1900
2-Month
60.7°F
(15.9°C)
65.1°F
(18.4°C)
-4.4°F
(-2.5°C)
1st Coolest
Coolest since:
1900
128th Warmest
Warmest since:
2020
Jul–Sep 1900
3-Month
64.1°F
(17.8°C)
67.2°F
(19.6°C)
-3.1°F
(-1.8°C)
3rd Coolest
Coolest since:
1912
126th Warmest
Warmest since:
2022
Jun–Sep 1900
4-Month
65.0°F
(18.3°C)
66.2°F
(19.0°C)
-1.2°F
(-0.7°C)
12th Coolest
Coolest since:
1907
117th Warmest
Warmest since:
2021
Ties: 1906, 1925, 1964
May–Sep 1900
5-Month
63.3°F
(17.4°C)
63.9°F
(17.7°C)
-0.6°F
(-0.3°C)
34th Coolest
Coolest since:
1907, 1965
95th Warmest
Warmest since:
2021
Ties: 1896, 1920, 1927, 1948, 1962
Apr–Sep 1900
6-Month
59.9°F
(15.5°C)
60.8°F
(16.0°C)
-0.9°F
(-0.5°C)
28th Coolest
Coolest since:
1912
101st Warmest
Warmest since:
2021
Ties: 1905, 1967, 1993, 1999
Mar–Sep 1900
7-Month
57.6°F
(14.2°C)
57.7°F
(14.3°C)
-0.1°F
(-0.1°C)
61st Coolest
Coolest since:
1912
68th Warmest
Warmest since:
1934, 2007, 2021
Ties: 1924, 1938, 1984
Feb–Sep 1900
8-Month
54.7°F
(12.6°C)
54.5°F
(12.5°C)
0.2°F
(0.1°C)
70th Coolest
Coolest since:
1903
59th Warmest
Warmest since:
1934, 2015
Ties: 1939, 1957, 1969, 1977, 1979, 2019
Jan–Sep 1900
9-Month
52.5°F
(11.4°C)
51.6°F
(10.9°C)
0.9°F
(0.5°C)
89th Coolest
Coolest since:
1917
40th Warmest
Warmest to Date
2015
Ties: 1959
Dec 1899–Sep 1900
10-Month
50.0°F
(10.0°C)
49.4°F
(9.7°C)
0.6°F
(0.3°C)
78th Coolest
Coolest since:
1917
50th Warmest
Warmest to Date
2015
Ties: 1935, 1953, 1988
Nov 1899–Sep 1900
11-Month
49.1°F
(9.5°C)
48.3°F
(9.1°C)
0.8°F
(0.4°C)
86th Coolest
Coolest since:
1917
42nd Warmest
Warmest to Date
2015
Ties: 1966, 1974
Oct 1899–Sep 1900
12-Month
48.8°F
(9.3°C)
48.4°F
(9.1°C)
0.4°F
(0.2°C)
74th Coolest
Coolest since:
1917
54th Warmest
Warmest to Date
2015
Ties: 1958, 1969, 1980, 2008, 2019
Apr 1899–Sep 1900
18-Month
52.4°F
(11.3°C)
52.6°F
(11.4°C)
-0.2°F
(-0.1°C)
50th Coolest
Coolest since:
1917
78th Warmest
Warmest to Date
2015
Ties: 1914, 1921, 1999
Oct 1898–Sep 1900
24-Month
47.9°F
(8.8°C)
48.5°F
(9.2°C)
-0.6°F
(-0.4°C)
25th Coolest
Coolest since:
1913
102nd Warmest
Warmest to Date
2016
Ties: 1948, 1953, 1956, 1983, 1985
Oct 1897–Sep 1900
36-Month
47.8°F
(8.8°C)
48.5°F
(9.2°C)
-0.7°F
(-0.4°C)
17th Coolest
Coolest since:
1917
109th Warmest
Warmest to Date
2017
Ties: 1924, 1925, 1985
Oct 1896–Sep 1900
48-Month
47.8°F
(8.8°C)
48.4°F
(9.1°C)
-0.6°F
(-0.3°C)
16th Coolest
Coolest since:
1915
109th Warmest
Warmest to Date
2018
Ties: 1908, 1916, 1925, 1951, 1965, 1976
Oct 1895–Sep 1900
60-Month
47.8°F
(8.8°C)
48.4°F
(9.1°C)
-0.6°F
(-0.3°C)
12th Coolest
Coolest since:
1917
112th Warmest
Warmest to Date
2018
Ties: 1906, 1909, 1910, 1912, 1918, 1924, 1948

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