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.

Washington

Average Temperature Rankings, September 2020

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
September 2020
1-Month		61.2°F
(16.2°C)		56.9°F
(13.8°C)		4.3°F
(2.4°C)		122nd Coolest
Coolest since:
1895
7th Warmest
Warmest since:
1967
Ties: 1994
Aug–Sep 2020
2-Month		63.5°F
(17.5°C)		60.2°F
(15.7°C)		3.3°F
(1.8°C)		122nd Coolest
Coolest since:
1895
7th Warmest
Warmest since:
2022
Jul–Sep 2020
3-Month		63.9°F
(17.7°C)		61.5°F
(16.4°C)		2.4°F
(1.3°C)		116th Coolest
Coolest since:
1895
13th Warmest
Warmest since:
2022
Jun–Sep 2020
4-Month		62.4°F
(16.9°C)		60.6°F
(15.9°C)		1.8°F
(1.0°C)		110th Coolest
Coolest since:
1954
19th Warmest
Warmest since:
2021
May–Sep 2020
5-Month		60.6°F
(15.9°C)		58.8°F
(14.9°C)		1.8°F
(1.0°C)		112th Coolest
Coolest since:
1899, 1964
17th Warmest
Warmest since:
1958
Ties: 1938, 1990, 2004
Apr–Sep 2020
6-Month		58.2°F
(14.6°C)		56.5°F
(13.6°C)		1.7°F
(1.0°C)		112th Coolest
Coolest since:
1955
17th Warmest
Warmest since:
2015
Ties: 1938, 2006, 2009
Mar–Sep 2020
7-Month		55.3°F
(12.9°C)		54.0°F
(12.2°C)		1.3°F
(0.7°C)		108th Coolest
Coolest since:
1955
21st Warmest
Warmest since:
2015
Ties: 1915, 1938, 1941, 1979, 2005
Feb–Sep 2020
8-Month		52.9°F
(11.6°C)		51.4°F
(10.8°C)		1.5°F
(0.8°C)		108th Coolest
Coolest since:
1955
21st Warmest
Warmest since:
2015
Ties: 1967, 2005, 2017
Jan–Sep 2020
9-Month		50.8°F
(10.4°C)		48.8°F
(9.3°C)		2.0°F
(1.1°C)		113th Coolest
Coolest since:
1916
16th Warmest
Warmest since:
2015
Ties: 1926, 2018
Dec 2019–Sep 2020
10-Month		49.1°F
(9.5°C)		47.0°F
(8.3°C)		2.1°F
(1.2°C)		114th Coolest
Coolest since:
1916
14th Warmest
Warmest since:
2015
Ties: 2004
Nov 2019–Sep 2020
11-Month		48.0°F
(8.9°C)		46.0°F
(7.8°C)		2.0°F
(1.1°C)		114th Coolest
Coolest since:
1916, 1917
14th Warmest
Warmest since:
2015
Ties: 1987
Oct 2019–Sep 2020
12-Month		47.6°F
(8.7°C)		46.1°F
(7.8°C)		1.5°F
(0.9°C)		108th Coolest
Coolest since:
1917
20th Warmest
Warmest since:
2015
Ties: 1941, 2018
Apr 2019–Sep 2020
18-Month		51.1°F
(10.6°C)		49.6°F
(9.8°C)		1.5°F
(0.8°C)		112th Coolest
Coolest since:
1917
16th Warmest
Warmest since:
2015
Ties: 1934, 2014
Oct 2018–Sep 2020
24-Month		47.3°F
(8.5°C)		46.1°F
(7.8°C)		1.2°F
(0.7°C)		104th Coolest
Coolest since:
1917
23rd Warmest
Warmest since:
2016
Ties: 1926, 1939, 1991, 1993, 2018, 2019
Oct 2017–Sep 2020
36-Month		47.4°F
(8.6°C)		46.1°F
(7.8°C)		1.3°F
(0.8°C)		109th Coolest
Coolest since:
1950
17th Warmest
Warmest since:
2016
Ties: 1968, 1990
Oct 2016–Sep 2020
48-Month		47.3°F
(8.5°C)		46.1°F
(7.8°C)		1.2°F
(0.7°C)		109th Coolest
Coolest since:
1950, 1951, 1952
16th Warmest
Warmest since:
2016
Ties: 1993, 2004
Oct 2015–Sep 2020
60-Month		47.6°F
(8.7°C)		46.1°F
(7.8°C)		1.5°F
(0.9°C)		117th Coolest
Coolest since:
1920, 1952
7th Warmest
Warmest since:
2017
Ties: 2021, 2022

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