Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

New England Basin

Average Temperature Rankings, May 2021

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2021
1-Month
54.0°F
(12.2°C)
52.2°F
(11.2°C)
1.8°F
(1.0°C)
92nd Coolest
Coolest since:
1917
37th Warmest
Warmest since:
1911, 2015
Ties: 1953
Apr–May 2021
2-Month
49.2°F
(9.6°C)
46.3°F
(7.9°C)
2.9°F
(1.7°C)
120th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
2010
Ties: 1941
Mar–May 2021
3-Month
43.5°F
(6.4°C)
40.4°F
(4.7°C)
3.1°F
(1.7°C)
120th Coolest
Coolest since:
1926
9th Warmest
Warmest since:
2010
Ties: 1999, 2022
Feb–May 2021
4-Month
37.9°F
(3.3°C)
34.8°F
(1.6°C)
3.1°F
(1.7°C)
119th Coolest
Coolest since:
1923
10th Warmest
Warmest since:
2010
Jan–May 2021
5-Month
35.0°F
(1.7°C)
31.2°F
(-0.4°C)
3.8°F
(2.1°C)
124th Coolest
Coolest since:
1923
5th Warmest
Warmest since:
2010
Ties: 2016
Dec 2020–May 2021
6-Month
33.9°F
(1.1°C)
29.6°F
(-1.3°C)
4.3°F
(2.4°C)
122nd Coolest
Coolest since:
1907, 1923
6th Warmest
Warmest since:
2012
Nov 2020–May 2021
7-Month
34.7°F
(1.5°C)
30.2°F
(-1.0°C)
4.5°F
(2.5°C)
124th Coolest
Coolest since:
1905
4th Warmest
Warmest since:
2012
Ties: 2002
Oct 2020–May 2021
8-Month
36.2°F
(2.3°C)
32.2°F
(0.1°C)
4.0°F
(2.2°C)
123rd Coolest
Coolest since:
1905
5th Warmest
Warmest since:
2012
Sep 2020–May 2021
9-Month
38.7°F
(3.7°C)
34.9°F
(1.6°C)
3.8°F
(2.1°C)
123rd Coolest
Coolest since:
1905
5th Warmest
Warmest since:
2012
Aug 2020–May 2021
10-Month
41.5°F
(5.3°C)
37.9°F
(3.3°C)
3.6°F
(2.0°C)
123rd Coolest
Coolest since:
1905
5th Warmest
Warmest since:
2012
Ties: 2022
Jul 2020–May 2021
11-Month
44.2°F
(6.8°C)
40.5°F
(4.7°C)
3.7°F
(2.1°C)
125th Coolest
Coolest since:
1905
3rd Warmest
Warmest since:
2012
Jun 2020–May 2021
12-Month
45.8°F
(7.7°C)
42.2°F
(5.7°C)
3.6°F
(2.0°C)
125th Coolest
Coolest since:
1905
3rd Warmest
Warmest since:
2012
Dec 2019–May 2021
18-Month
41.6°F
(5.3°C)
38.0°F
(3.3°C)
3.6°F
(2.0°C)
123rd Coolest
Coolest since:
1905
4th Warmest
Warmest since:
2013
Ties: 2012
Jun 2019–May 2021
24-Month
45.1°F
(7.3°C)
42.2°F
(5.7°C)
2.9°F
(1.6°C)
122nd Coolest
Coolest since:
1905
5th Warmest
Warmest since:
2013
Jun 2018–May 2021
36-Month
44.5°F
(6.9°C)
42.2°F
(5.7°C)
2.3°F
(1.2°C)
118th Coolest
Coolest since:
1906
8th Warmest
Warmest since:
2012
Ties: 2008
Jun 2017–May 2021
48-Month
44.5°F
(6.9°C)
42.2°F
(5.7°C)
2.3°F
(1.2°C)
118th Coolest
Coolest since:
1907
7th Warmest
Warmest since:
2013
Ties: 2002
Jun 2016–May 2021
60-Month
44.6°F
(7.0°C)
42.1°F
(5.6°C)
2.5°F
(1.4°C)
118th Coolest
Coolest since:
1908
6th Warmest
Warmest since:
2013
Ties: 2016

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