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 1999

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1999
1-Month
61.3°F
(16.3°C)
60.8°F
(16.0°C)
0.5°F
(0.3°C)
68th Coolest
Coolest since:
1912
61st Warmest
Warmest since:
2022
Ties: 1976, 1989
Aug–Sep 1999
2-Month
65.2°F
(18.4°C)
65.2°F
(18.4°C)
0.0°F
(0.0°C)
57th Coolest
Coolest since:
1900
72nd Warmest
Warmest since:
2020
Ties: 1904, 1910, 1914, 1917, 1956
Jul–Sep 1999
3-Month
67.1°F
(19.5°C)
67.2°F
(19.6°C)
-0.1°F
(-0.1°C)
54th Coolest
Coolest since:
1912
75th Warmest
Warmest since:
2022
Ties: 1947, 1959, 1980
Jun–Sep 1999
4-Month
66.2°F
(19.0°C)
66.3°F
(19.1°C)
-0.1°F
(-0.1°C)
47th Coolest
Coolest since:
1907
82nd Warmest
Warmest since:
2021
Ties: 1928, 1929, 1932, 1951, 1955, 1957, 1971, 1986
May–Sep 1999
5-Month
63.5°F
(17.5°C)
63.8°F
(17.7°C)
-0.3°F
(-0.2°C)
44th Coolest
Coolest since:
1907, 1965
85th Warmest
Warmest since:
2021
Ties: 1904
Apr–Sep 1999
6-Month
59.9°F
(15.5°C)
60.9°F
(16.1°C)
-1.0°F
(-0.6°C)
28th Coolest
Coolest since:
1912
101st Warmest
Warmest since:
2021
Ties: 1900, 1905, 1967, 1993
Mar–Sep 1999
7-Month
57.2°F
(14.0°C)
57.7°F
(14.3°C)
-0.5°F
(-0.3°C)
48th Coolest
Coolest since:
1912
81st Warmest
Warmest since:
1934, 2007, 2021
Ties: 1957, 1962
Feb–Sep 1999
8-Month
54.4°F
(12.4°C)
54.5°F
(12.5°C)
-0.1°F
(-0.1°C)
53rd Coolest
Coolest since:
1903
76th Warmest
Warmest since:
1934, 2015
Ties: 1938, 1968, 1978, 2010
Jan–Sep 1999
9-Month
52.0°F
(11.1°C)
51.6°F
(10.9°C)
0.4°F
(0.2°C)
72nd Coolest
Coolest since:
1917
57th Warmest
Warmest since:
2015
Ties: 1978, 2008
Dec 1998–Sep 1999
10-Month
49.7°F
(9.8°C)
49.4°F
(9.7°C)
0.3°F
(0.1°C)
65th Coolest
Coolest since:
1917
63rd Warmest
Warmest since:
2015
Ties: 1914
Nov 1998–Sep 1999
11-Month
48.7°F
(9.3°C)
48.3°F
(9.1°C)
0.4°F
(0.2°C)
71st Coolest
Coolest since:
1917
57th Warmest
Warmest since:
2015
Ties: 1919, 1927, 1969, 1977
Oct 1998–Sep 1999
12-Month
48.6°F
(9.2°C)
48.4°F
(9.1°C)
0.2°F
(0.1°C)
59th Coolest
Coolest since:
1917
69th Warmest
Warmest since:
2015
Ties: 1914, 1946, 1947, 1967, 1998
Apr 1998–Sep 1999
18-Month
52.4°F
(11.3°C)
52.5°F
(11.4°C)
-0.1°F
(-0.1°C)
50th Coolest
Coolest since:
1917
78th Warmest
Warmest since:
2015
Ties: 1900, 1914, 1921
Oct 1997–Sep 1999
24-Month
48.6°F
(9.2°C)
48.4°F
(9.1°C)
0.2°F
(0.1°C)
71st Coolest
Coolest since:
1913
56th Warmest
Warmest since:
2016
Ties: 1901, 1947, 1969
Oct 1996–Sep 1999
36-Month
49.0°F
(9.4°C)
48.5°F
(9.2°C)
0.5°F
(0.2°C)
85th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
2017
Ties: 1991
Oct 1995–Sep 1999
48-Month
49.5°F
(9.7°C)
48.4°F
(9.1°C)
1.1°F
(0.6°C)
104th Coolest
Coolest since:
1915
21st Warmest
Warmest since:
2018
Ties: 1937, 1990, 1992, 2012, 2013
Oct 1994–Sep 1999
60-Month
49.2°F
(9.6°C)
48.4°F
(9.1°C)
0.8°F
(0.5°C)
93rd Coolest
Coolest since:
1917
31st Warmest
Warmest since:
2018
Ties: 1981, 1991

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