Statewide Rankings

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

Idaho

Average Temperature Rankings, September 1991

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1991
1-Month
57.0°F
(13.9°C)
54.7°F
(12.6°C)
2.3°F
(1.3°C)
101st Coolest
Coolest since:
1912, 1965
28th Warmest
Warmest since:
1990
Ties: 1917, 1918, 1949
Aug–Sep 1991
2-Month
62.0°F
(16.7°C)
59.1°F
(15.1°C)
2.9°F
(1.6°C)
117th Coolest
Coolest since:
1912
12th Warmest
Warmest since:
2022
Ties: 1963
Jul–Sep 1991
3-Month
63.5°F
(17.5°C)
61.2°F
(16.2°C)
2.3°F
(1.3°C)
114th Coolest
Coolest since:
1912
15th Warmest
Warmest since:
2022
Jun–Sep 1991
4-Month
61.3°F
(16.3°C)
60.0°F
(15.6°C)
1.3°F
(0.7°C)
99th Coolest
Coolest since:
1993
30th Warmest
Warmest since:
2021
Ties: 1898, 1918, 1979, 2016
May–Sep 1991
5-Month
58.3°F
(14.6°C)
57.8°F
(14.3°C)
0.5°F
(0.3°C)
78th Coolest
Coolest since:
1912
51st Warmest
Warmest since:
2021
Ties: 1924, 1928, 1989
Apr–Sep 1991
6-Month
55.2°F
(12.9°C)
55.1°F
(12.8°C)
0.1°F
(0.1°C)
63rd Coolest
Coolest since:
1912
66th Warmest
Warmest since:
2021
Ties: 1918, 1963
Mar–Sep 1991
7-Month
52.0°F
(11.1°C)
51.8°F
(11.0°C)
0.2°F
(0.1°C)
62nd Coolest
Coolest since:
1912
67th Warmest
Warmest since:
1934, 2015
Ties: 1956
Feb–Sep 1991
8-Month
49.8°F
(9.9°C)
48.6°F
(9.2°C)
1.2°F
(0.7°C)
96th Coolest
Coolest since:
1964
33rd Warmest
Warmest since:
1934, 2015
Ties: 1931, 1981
Jan–Sep 1991
9-Month
46.6°F
(8.1°C)
45.7°F
(7.6°C)
0.9°F
(0.5°C)
90th Coolest
Coolest since:
1917
39th Warmest
Warmest since:
1934
Ties: 1941, 1966
Dec 1990–Sep 1991
10-Month
43.4°F
(6.3°C)
43.5°F
(6.4°C)
-0.1°F
(-0.1°C)
49th Coolest
Coolest since:
1917
79th Warmest
Warmest since:
1934
Ties: 1907, 1915, 1924, 1956, 2011
Nov 1990–Sep 1991
11-Month
42.5°F
(5.8°C)
42.5°F
(5.8°C)
0.0°F
(0.0°C)
58th Coolest
Coolest since:
1917
70th Warmest
Warmest since:
1934
Ties: 1915
Oct 1990–Sep 1991
12-Month
42.5°F
(5.8°C)
42.6°F
(5.9°C)
-0.1°F
(-0.1°C)
50th Coolest
Coolest since:
1917
78th Warmest
Warmest since:
1934
Ties: 1897, 1907, 1924
Apr 1990–Sep 1991
18-Month
47.4°F
(8.6°C)
46.7°F
(8.2°C)
0.7°F
(0.4°C)
87th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
2015
Ties: 1898, 1905, 1939, 1978, 1994, 1999, 2008, 2009
Oct 1989–Sep 1991
24-Month
43.5°F
(6.4°C)
42.6°F
(5.9°C)
0.9°F
(0.5°C)
95th Coolest
Coolest since:
1917
32nd Warmest
Warmest since:
2016
Ties: 1926, 1959, 1989, 1999, 2008, 2020
Oct 1988–Sep 1991
36-Month
43.3°F
(6.3°C)
42.6°F
(5.9°C)
0.7°F
(0.4°C)
91st Coolest
Coolest since:
1917
35th Warmest
Warmest since:
2017
Ties: 1967
Oct 1987–Sep 1991
48-Month
43.5°F
(6.4°C)
42.5°F
(5.8°C)
1.0°F
(0.6°C)
101st Coolest
Coolest since:
1913, 1917, 1932
24th Warmest
Warmest since:
2018
Ties: 1937, 1942, 1997, 1999, 2013
Oct 1986–Sep 1991
60-Month
43.7°F
(6.5°C)
42.6°F
(5.9°C)
1.1°F
(0.6°C)
104th Coolest
Coolest since:
1917, 1933
20th Warmest
Warmest since:
2016, 2017, 2018
Ties: 1938, 1942, 1998, 2014

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