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 1901

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1901
1-Month
50.6°F
(10.3°C)
54.7°F
(12.6°C)
-4.1°F
(-2.3°C)
11th Coolest
Coolest to Date
1912, 1965
118th Warmest
Warmest since:
1990
Aug–Sep 1901
2-Month
58.5°F
(14.7°C)
59.2°F
(15.1°C)
-0.7°F
(-0.4°C)
36th Coolest
Coolest since:
1912
93rd Warmest
Warmest since:
2022
Ties: 1924, 1996
Jul–Sep 1901
3-Month
61.3°F
(16.3°C)
61.1°F
(16.2°C)
0.2°F
(0.1°C)
62nd Coolest
Coolest since:
1912
67th Warmest
Warmest since:
2022
Ties: 1946, 1996
Jun–Sep 1901
4-Month
58.9°F
(14.9°C)
60.0°F
(15.6°C)
-1.1°F
(-0.7°C)
17th Coolest
Coolest since:
1993
112th Warmest
Warmest since:
2021
Ties: 1903, 1968
May–Sep 1901
5-Month
57.7°F
(14.3°C)
57.9°F
(14.4°C)
-0.2°F
(-0.1°C)
50th Coolest
Coolest since:
1912
79th Warmest
Warmest since:
2021
Ties: 1948
Apr–Sep 1901
6-Month
54.6°F
(12.6°C)
55.1°F
(12.8°C)
-0.5°F
(-0.2°C)
40th Coolest
Coolest since:
1912
89th Warmest
Warmest since:
2021
Ties: 1980
Mar–Sep 1901
7-Month
51.3°F
(10.7°C)
51.8°F
(11.0°C)
-0.5°F
(-0.3°C)
41st Coolest
Coolest since:
1912
88th Warmest
Warmest since:
1934, 2015
Ties: 1932, 1933, 1943, 1953, 1959, 1995
Feb–Sep 1901
8-Month
48.0°F
(8.9°C)
48.7°F
(9.3°C)
-0.7°F
(-0.4°C)
34th Coolest
Coolest since:
1964
95th Warmest
Warmest since:
1934, 2015
Ties: 1908, 1951, 1962, 2011
Jan–Sep 1901
9-Month
45.4°F
(7.4°C)
45.7°F
(7.6°C)
-0.3°F
(-0.2°C)
45th Coolest
Coolest since:
1917
84th Warmest
Warmest since:
1934
Ties: 1956
Dec 1900–Sep 1901
10-Month
43.7°F
(6.5°C)
43.5°F
(6.4°C)
0.2°F
(0.1°C)
62nd Coolest
Coolest since:
1917
66th Warmest
Warmest since:
1934
Ties: 1931
Nov 1900–Sep 1901
11-Month
42.6°F
(5.9°C)
42.5°F
(5.8°C)
0.1°F
(0.1°C)
60th Coolest
Coolest since:
1917
68th Warmest
Warmest since:
1934
Ties: 1921, 1924, 1946, 1951, 1969, 1980, 1995, 1999, 2010
Oct 1900–Sep 1901
12-Month
42.6°F
(5.9°C)
42.6°F
(5.9°C)
0.0°F
(0.0°C)
54th Coolest
Coolest since:
1917
74th Warmest
Warmest since:
1934
Ties: 1904, 1927, 1969, 1995
Apr 1900–Sep 1901
18-Month
46.9°F
(8.3°C)
46.7°F
(8.2°C)
0.2°F
(0.1°C)
65th Coolest
Coolest since:
1917
63rd Warmest
Warmest since:
2015
Ties: 1914
Oct 1899–Sep 1901
24-Month
43.2°F
(6.2°C)
42.6°F
(5.9°C)
0.6°F
(0.3°C)
86th Coolest
Coolest since:
1917
41st Warmest
Warmest to Date
2016
Ties: 1968, 1982, 1987, 2002
Oct 1898–Sep 1901
36-Month
42.3°F
(5.7°C)
42.6°F
(5.9°C)
-0.3°F
(-0.2°C)
38th Coolest
Coolest since:
1917
88th Warmest
Warmest since:
2017
Ties: 1911, 1916, 1919, 1945, 1974, 1987
Oct 1897–Sep 1901
48-Month
42.4°F
(5.8°C)
42.6°F
(5.9°C)
-0.2°F
(-0.1°C)
40th Coolest
Coolest since:
1913, 1917, 1932
85th Warmest
Warmest since:
2018
Ties: 1900, 1902, 1909, 1911, 1929, 1944, 1971, 1978, 1979
Oct 1896–Sep 1901
60-Month
42.4°F
(5.8°C)
42.6°F
(5.9°C)
-0.2°F
(-0.1°C)
39th Coolest
Coolest to Date
1917, 1933
85th Warmest
Warmest since:
2016, 2017, 2018
Ties: 1910, 1911, 1922, 1945, 1955, 1957, 1958, 1964, 1965

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