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, April 1990

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
April 1990
1-Month 		33.7°F
(0.9°C)		 29.2°F
(-1.6°C)		 4.5°F
(2.5°C)		 125th Coolest
Coolest since:
 2008
4th Warmest
Warmest since:
 2016
Mar–Apr 1990
2-Month 		29.1°F
(-1.6°C)		 25.8°F
(-3.4°C)		 3.3°F
(1.8°C)		 120th Coolest
Coolest since:
 1917
9th Warmest
Warmest since:
 1934
Ties: 1900
Feb–Apr 1990
3-Month 		24.3°F
(-4.3°C)		 23.0°F
(-5.0°C)		 1.3°F
(0.7°C)		 93rd Coolest
Coolest since:
 1933, 1955
36th Warmest
Warmest since:
 1934
Jan–Apr 1990
4-Month 		23.1°F
(-4.9°C)		 20.7°F
(-6.3°C)		 2.4°F
(1.4°C)		 104th Coolest
Coolest since:
 1922
25th Warmest
Warmest since:
 1934
Dec 1989–Apr 1990
5-Month 		22.0°F
(-5.6°C)		 19.8°F
(-6.8°C)		 2.2°F
(1.2°C)		 104th Coolest
Coolest since:
 1949
24th Warmest
Warmest since:
 1934
Ties: 1967
Nov 1989–Apr 1990
6-Month 		22.4°F
(-5.3°C)		 20.3°F
(-6.5°C)		 2.1°F
(1.2°C)		 106th Coolest
Coolest since:
 1917
22nd Warmest
Warmest since:
 1934
Ties: 1983
Oct 1989–Apr 1990
7-Month 		23.9°F
(-4.5°C)		 21.9°F
(-5.6°C)		 2.0°F
(1.1°C)		 110th Coolest
Coolest since:
 1917
18th Warmest
Warmest since:
 1934
Ties: 2004
Sep 1989–Apr 1990
8-Month 		25.9°F
(-3.4°C)		 24.2°F
(-4.3°C)		 1.7°F
(0.9°C)		 102nd Coolest
Coolest since:
 1917
26th Warmest
Warmest since:
 1934
Aug 1989–Apr 1990
9-Month 		28.3°F
(-2.1°C)		 26.8°F
(-2.9°C)		 1.5°F
(0.8°C)		 100th Coolest
Coolest since:
 1917
28th Warmest
Warmest since:
 1934
Jul 1989–Apr 1990
10-Month 		30.6°F
(-0.8°C)		 29.0°F
(-1.7°C)		 1.6°F
(0.9°C)		 104th Coolest
Coolest since:
 1917
24th Warmest
Warmest since:
 2015
Ties: 1959, 1967, 1995
Jun 1989–Apr 1990
11-Month 		31.8°F
(-0.1°C)		 30.3°F
(-0.9°C)		 1.5°F
(0.8°C)		 105th Coolest
Coolest since:
 1917
23rd Warmest
Warmest since:
 1934
Ties: 1907, 2007
May 1989–Apr 1990
12-Month 		32.1°F
(0.1°C)		 30.8°F
(-0.7°C)		 1.3°F
(0.8°C)		 102nd Coolest
Coolest since:
 1917
26th Warmest
Warmest since:
 2015, 2016
Nov 1988–Apr 1990
18-Month 		27.9°F
(-2.3°C)		 27.3°F
(-2.6°C)		 0.6°F
(0.3°C)		 78th Coolest
Coolest since:
 1917
49th Warmest
Warmest since:
 2016
Ties: 1907, 1915, 1928, 1948, 1984, 1987, 1989
May 1988–Apr 1990
24-Month 		31.7°F
(-0.2°C)		 30.8°F
(-0.7°C)		 0.9°F
(0.5°C)		 97th Coolest
Coolest since:
 1917
30th Warmest
Warmest since:
 2016
Ties: 1926, 1982
May 1987–Apr 1990
36-Month 		31.6°F
(-0.2°C)		 30.8°F
(-0.7°C)		 0.8°F
(0.5°C)		 98th Coolest
Coolest since:
 1933
28th Warmest
Warmest since:
 2016, 2017
Ties: 1936, 1993, 1996, 2002, 2008, 2013
May 1986–Apr 1990
48-Month 		31.6°F
(-0.2°C)		 30.8°F
(-0.7°C)		 0.8°F
(0.5°C)		 98th Coolest
Coolest since:
 1932, 1933
27th Warmest
Warmest since:
 2018
Ties: 1943, 2010, 2013
May 1985–Apr 1990
60-Month 		31.5°F
(-0.3°C)		 30.8°F
(-0.7°C)		 0.7°F
(0.4°C)		 95th Coolest
Coolest since:
 1933
29th Warmest
Warmest since:
 2018
Ties: 1943, 1991, 1994, 2010, 2013

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