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, December 1921

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1921
1-Month
19.1°F
(-7.2°C)
21.6°F
(-5.8°C)
-2.5°F
(-1.4°C)
31st Coolest
Coolest since:
1989
98th Warmest
Warmest since:
2015
Ties: 1929
Nov–Dec 1921
2-Month
24.6°F
(-4.1°C)
28.0°F
(-2.2°C)
-3.4°F
(-1.9°C)
13th Coolest
Coolest since:
1917
116th Warmest
Warmest since:
2015
Oct–Dec 1921
3-Month
31.7°F
(-0.2°C)
34.0°F
(1.1°C)
-2.3°F
(-1.3°C)
15th Coolest
Coolest since:
1904, 1917
114th Warmest
Warmest since:
2015
Ties: 1901, 1955
Sep–Dec 1921
4-Month
38.6°F
(3.7°C)
39.6°F
(4.2°C)
-1.0°F
(-0.5°C)
26th Coolest
Coolest since:
1917
103rd Warmest
Warmest since:
2015
Ties: 1936
Aug–Dec 1921
5-Month
43.3°F
(6.3°C)
44.6°F
(7.0°C)
-1.3°F
(-0.7°C)
20th Coolest
Coolest since:
1904
109th Warmest
Warmest since:
2015
Jul–Dec 1921
6-Month
47.9°F
(8.8°C)
48.2°F
(9.0°C)
-0.3°F
(-0.2°C)
42nd Coolest
Coolest since:
1904
87th Warmest
Warmest since:
2015
Ties: 1918, 1960
Jun–Dec 1921
7-Month
49.8°F
(9.9°C)
50.1°F
(10.1°C)
-0.3°F
(-0.2°C)
42nd Coolest
Coolest since:
1904
87th Warmest
Warmest since:
2021
Ties: 1895, 1951, 1985
May–Dec 1921
8-Month
50.3°F
(10.2°C)
50.4°F
(10.2°C)
-0.1°F
(0.0°C)
54th Coolest
Coolest since:
1917
75th Warmest
Warmest since:
2015
Ties: 1898, 1899
Apr–Dec 1921
9-Month
49.7°F
(9.8°C)
49.2°F
(9.6°C)
0.5°F
(0.2°C)
75th Coolest
Coolest since:
1917
54th Warmest
Warmest since:
2021
Ties: 1913, 1932, 1944, 1950, 1955
Mar–Dec 1921
10-Month
48.3°F
(9.1°C)
47.2°F
(8.4°C)
1.1°F
(0.7°C)
100th Coolest
Coolest since:
1917
29th Warmest
Warmest to Date
2021
Ties: 1938, 1946
Feb–Dec 1921
11-Month
45.6°F
(7.6°C)
44.5°F
(6.9°C)
1.1°F
(0.7°C)
94th Coolest
Coolest since:
1917
35th Warmest
Warmest to Date
2010, 2012
Ties: 1961
Jan–Dec 1921
12-Month
43.4°F
(6.3°C)
42.2°F
(5.7°C)
1.2°F
(0.6°C)
100th Coolest
Coolest since:
1904
29th Warmest
Warmest to Date
2010, 2012
Ties: 1981, 1984
Jul 1920–Dec 1921
18-Month
45.3°F
(7.4°C)
44.2°F
(6.8°C)
1.1°F
(0.6°C)
98th Coolest
Coolest since:
1904
30th Warmest
Warmest to Date
2012
Ties: 1954, 1960, 2004
Jan 1920–Dec 1921
24-Month
42.3°F
(5.7°C)
42.2°F
(5.7°C)
0.1°F
(0.0°C)
56th Coolest
Coolest since:
1905
72nd Warmest
Warmest to Date
2021
Ties: 1939, 1948, 1958, 1969, 1986
Jan 1919–Dec 1921
36-Month
42.3°F
(5.7°C)
42.2°F
(5.7°C)
0.1°F
(0.0°C)
59th Coolest
Coolest since:
1905, 1906
68th Warmest
Warmest to Date
2012, 2022
Ties: 1956, 1971, 1982
Jan 1918–Dec 1921
48-Month
41.9°F
(5.5°C)
42.2°F
(5.7°C)
-0.3°F
(-0.2°C)
34th Coolest
Coolest since:
1907
92nd Warmest
Warmest since:
2013
Ties: 1900, 1913, 1942, 1964, 1967, 1968
Jan 1917–Dec 1921
60-Month
41.3°F
(5.2°C)
42.2°F
(5.7°C)
-0.9°F
(-0.5°C)
14th Coolest
Coolest since:
1907
111th Warmest
Warmest since:
2013, 2014, 2022
Ties: 1910, 1929

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