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 1999

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1999
1-Month
54.2°F
(12.3°C)
54.7°F
(12.6°C)
-0.5°F
(-0.3°C)
43rd Coolest
Coolest since:
1912, 1965
86th Warmest
Warmest since:
1990
Ties: 1992
Aug–Sep 1999
2-Month
59.8°F
(15.4°C)
59.2°F
(15.1°C)
0.6°F
(0.3°C)
76th Coolest
Coolest since:
1912
53rd Warmest
Warmest since:
2022
Ties: 1987
Jul–Sep 1999
3-Month
61.1°F
(16.2°C)
61.1°F
(16.2°C)
0.0°F
(0.0°C)
53rd Coolest
Coolest since:
1912
76th Warmest
Warmest since:
2022
Ties: 1897, 2010
Jun–Sep 1999
4-Month
59.7°F
(15.4°C)
60.0°F
(15.6°C)
-0.3°F
(-0.2°C)
42nd Coolest
Coolest since:
1993
87th Warmest
Warmest since:
2021
Ties: 1932, 2010
May–Sep 1999
5-Month
57.1°F
(13.9°C)
57.9°F
(14.4°C)
-0.8°F
(-0.5°C)
26th Coolest
Coolest since:
1912
103rd Warmest
Warmest since:
2021
Ties: 1953, 1984, 1995
Apr–Sep 1999
6-Month
54.0°F
(12.2°C)
55.1°F
(12.8°C)
-1.1°F
(-0.6°C)
24th Coolest
Coolest since:
1912
105th Warmest
Warmest since:
2021
Ties: 1895, 1970, 1983, 1984
Mar–Sep 1999
7-Month
51.1°F
(10.6°C)
51.8°F
(11.0°C)
-0.7°F
(-0.4°C)
31st Coolest
Coolest since:
1912
98th Warmest
Warmest since:
1934, 2015
Ties: 1962, 1968
Feb–Sep 1999
8-Month
48.1°F
(8.9°C)
48.7°F
(9.3°C)
-0.6°F
(-0.4°C)
39th Coolest
Coolest since:
1964
90th Warmest
Warmest since:
1934, 2015
Jan–Sep 1999
9-Month
45.8°F
(7.7°C)
45.7°F
(7.6°C)
0.1°F
(0.1°C)
57th Coolest
Coolest since:
1917
72nd Warmest
Warmest since:
1934
Ties: 1921, 1977
Dec 1998–Sep 1999
10-Month
43.5°F
(6.4°C)
43.5°F
(6.4°C)
0.0°F
(0.0°C)
53rd Coolest
Coolest since:
1917
75th Warmest
Warmest since:
1934
Ties: 1896, 1904, 1935, 1951, 1956, 2002, 2010, 2011
Nov 1998–Sep 1999
11-Month
42.6°F
(5.9°C)
42.5°F
(5.8°C)
0.1°F
(0.1°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
1934
Ties: 1901, 1921, 1924, 1946, 1951, 1969, 1980, 1995, 2010
Oct 1998–Sep 1999
12-Month
42.7°F
(5.9°C)
42.6°F
(5.9°C)
0.1°F
(0.0°C)
59th Coolest
Coolest since:
1917
69th Warmest
Warmest since:
1934
Ties: 1896, 1902, 1915, 1928, 1970, 1983, 2011
Apr 1998–Sep 1999
18-Month
47.4°F
(8.6°C)
46.7°F
(8.2°C)
0.7°F
(0.4°C)
86th Coolest
Coolest since:
1917
42nd Warmest
Warmest since:
2015
Ties: 1898, 1905, 1939, 1991, 1994, 2008, 2009
Oct 1997–Sep 1999
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, 1991, 2008, 2020
Oct 1996–Sep 1999
36-Month
43.5°F
(6.4°C)
42.6°F
(5.9°C)
0.9°F
(0.5°C)
93rd Coolest
Coolest since:
1917
33rd Warmest
Warmest since:
2017
Oct 1995–Sep 1999
48-Month
43.5°F
(6.4°C)
42.6°F
(5.9°C)
0.9°F
(0.5°C)
101st Coolest
Coolest since:
1913, 1917, 1932
24th Warmest
Warmest since:
2018
Ties: 1937, 1942, 1991, 1997, 2013
Oct 1994–Sep 1999
60-Month
43.3°F
(6.3°C)
42.6°F
(5.9°C)
0.7°F
(0.4°C)
93rd Coolest
Coolest since:
1917, 1933
31st Warmest
Warmest since:
2016, 2017, 2018
Ties: 1940, 1943

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