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

Minimum Temperature Rankings, May 1991

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
May 1991
1-Month		35.5°F
(1.9°C)		36.5°F
(2.5°C)		-1.0°F
(-0.6°C)		37th Coolest
Coolest since:
1916
92nd Warmest
Warmest since:
1897
Ties: 1905, 1978
Apr–May 1991
2-Month		32.1°F
(0.1°C)		32.9°F
(0.5°C)		-0.8°F
(-0.4°C)		36th Coolest
Coolest since:
1982
93rd Warmest
Warmest since:
1934
Ties: 1984
Mar–May 1991
3-Month		29.1°F
(-1.6°C)		29.4°F
(-1.4°C)		-0.3°F
(-0.2°C)		58th Coolest
Coolest since:
1917
71st Warmest
Warmest since:
1934
Ties: 1913, 2009
Feb–May 1991
4-Month		27.9°F
(-2.3°C)		26.4°F
(-3.1°C)		1.5°F
(0.8°C)		96th Coolest
Coolest since:
1933
33rd Warmest
Warmest since:
1934
Jan–May 1991
5-Month		24.7°F
(-4.1°C)		23.8°F
(-4.6°C)		0.9°F
(0.5°C)		85th Coolest
Coolest since:
1922
44th Warmest
Warmest since:
1934
Ties: 1945, 1996, 1997, 2021
Dec 1990–May 1991
6-Month		21.4°F
(-5.9°C)		22.6°F
(-5.2°C)		-1.2°F
(-0.7°C)		30th Coolest
Coolest since:
1929
98th Warmest
Warmest since:
1934
Ties: 1910, 1916, 1936
Nov 1990–May 1991
7-Month		21.8°F
(-5.7°C)		22.6°F
(-5.2°C)		-0.8°F
(-0.5°C)		31st Coolest
Coolest since:
1917
97th Warmest
Warmest since:
1934
Ties: 1906, 1993
Oct 1990–May 1991
8-Month		22.9°F
(-5.1°C)		23.8°F
(-4.6°C)		-0.9°F
(-0.5°C)		29th Coolest
Coolest since:
1917
99th Warmest
Warmest since:
1934
Ties: 1916, 1973
Sep 1990–May 1991
9-Month		25.4°F
(-3.7°C)		25.6°F
(-3.6°C)		-0.2°F
(-0.1°C)		43rd Coolest
Coolest since:
1917
85th Warmest
Warmest since:
1934
Ties: 1904, 1924, 1943, 1976, 2001
Aug 1990–May 1991
10-Month		27.9°F
(-2.3°C)		27.8°F
(-2.3°C)		0.1°F
(0.0°C)		55th Coolest
Coolest since:
1917
73rd Warmest
Warmest since:
1934
Ties: 1909, 1945, 1966
Jul 1990–May 1991
11-Month		30.0°F
(-1.1°C)		29.7°F
(-1.3°C)		0.3°F
(0.2°C)		65th Coolest
Coolest since:
1917
63rd Warmest
Warmest since:
2015
Ties: 1925, 1948, 2011
Jun 1990–May 1991
12-Month		31.1°F
(-0.5°C)		30.8°F
(-0.7°C)		0.3°F
(0.2°C)		61st Coolest
Coolest since:
1917
67th Warmest
Warmest since:
1934
Ties: 1989, 2011
Dec 1989–May 1991
18-Month		28.8°F
(-1.8°C)		28.1°F
(-2.2°C)		0.7°F
(0.4°C)		83rd Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2016
Ties: 1967, 1984, 2012
Jun 1989–May 1991
24-Month		31.6°F
(-0.2°C)		30.8°F
(-0.7°C)		0.8°F
(0.5°C)		95th Coolest
Coolest since:
1917
32nd Warmest
Warmest since:
2016
Ties: 1919, 1988, 1990, 2008
Jun 1988–May 1991
36-Month		31.4°F
(-0.3°C)		30.8°F
(-0.7°C)		0.6°F
(0.4°C)		87th Coolest
Coolest since:
1933
39th Warmest
Warmest since:
2016
Ties: 1902, 1926, 1968, 1969
Jun 1987–May 1991
48-Month		31.4°F
(-0.3°C)		30.8°F
(-0.7°C)		0.6°F
(0.4°C)		88th Coolest
Coolest since:
1932
37th Warmest
Warmest since:
2018
Ties: 1927, 1970, 2012
Jun 1986–May 1991
60-Month		31.5°F
(-0.3°C)		30.8°F
(-0.7°C)		0.7°F
(0.4°C)		93rd Coolest
Coolest since:
1933
31st Warmest
Warmest since:
2018
Ties: 1943, 2010

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