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 1939

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1939
1-Month
22.2°F
(-5.4°C)
21.6°F
(-5.8°C)
0.6°F
(0.4°C)
61st Coolest
Coolest since:
1989
68th Warmest
Warmest since:
2015
Nov–Dec 1939
2-Month
26.5°F
(-3.1°C)
28.0°F
(-2.2°C)
-1.5°F
(-0.9°C)
31st Coolest
Coolest since:
1917
98th Warmest
Warmest since:
2015
Ties: 1963, 1970
Oct–Dec 1939
3-Month
32.8°F
(0.4°C)
34.0°F
(1.1°C)
-1.2°F
(-0.7°C)
28th Coolest
Coolest since:
1904, 1917
101st Warmest
Warmest since:
2015
Ties: 1924, 1942
Sep–Dec 1939
4-Month
38.7°F
(3.7°C)
39.6°F
(4.2°C)
-0.9°F
(-0.5°C)
28th Coolest
Coolest since:
1917
101st Warmest
Warmest since:
2015
Ties: 1935
Aug–Dec 1939
5-Month
44.5°F
(6.9°C)
44.6°F
(7.0°C)
-0.1°F
(-0.1°C)
48th Coolest
Coolest since:
1904
81st Warmest
Warmest since:
2015
Ties: 1960, 1974, 1985, 1992, 1995, 1997
Jul–Dec 1939
6-Month
48.3°F
(9.1°C)
48.2°F
(9.0°C)
0.1°F
(0.1°C)
54th Coolest
Coolest since:
1904
75th Warmest
Warmest since:
2015
Ties: 1898, 1908, 1911, 1954
Jun–Dec 1939
7-Month
50.1°F
(10.1°C)
50.1°F
(10.1°C)
0.0°F
(0.0°C)
54th Coolest
Coolest since:
1904
75th Warmest
Warmest since:
2021
Ties: 1898, 1899, 1928, 1935
May–Dec 1939
8-Month
50.4°F
(10.2°C)
50.4°F
(10.2°C)
0.0°F
(0.0°C)
57th Coolest
Coolest since:
1917
72nd Warmest
Warmest since:
2015
Ties: 1895
Apr–Dec 1939
9-Month
48.8°F
(9.3°C)
49.2°F
(9.6°C)
-0.4°F
(-0.3°C)
32nd Coolest
Coolest since:
1917
97th Warmest
Warmest since:
2021
Ties: 1916, 1928, 1967, 1978, 1997
Mar–Dec 1939
10-Month
46.2°F
(7.9°C)
47.2°F
(8.4°C)
-1.0°F
(-0.5°C)
21st Coolest
Coolest since:
1917
108th Warmest
Warmest since:
2021
Ties: 1909, 1962
Feb–Dec 1939
11-Month
43.7°F
(6.5°C)
44.5°F
(6.9°C)
-0.8°F
(-0.4°C)
25th Coolest
Coolest since:
1917
104th Warmest
Warmest since:
2010, 2012
Ties: 1895, 1897, 1901, 1909, 1918, 1980
Jan–Dec 1939
12-Month
41.4°F
(5.2°C)
42.2°F
(5.7°C)
-0.8°F
(-0.5°C)
24th Coolest
Coolest since:
1904
105th Warmest
Warmest since:
2010, 2012
Ties: 1895, 1897, 1903, 1958
Jul 1938–Dec 1939
18-Month
44.1°F
(6.7°C)
44.2°F
(6.8°C)
-0.1°F
(-0.1°C)
44th Coolest
Coolest since:
1904
84th Warmest
Warmest since:
2012
Ties: 1898, 1900, 1915, 1919, 1958, 1959, 1968, 1982
Jan 1938–Dec 1939
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 since:
2021
Ties: 1921, 1948, 1958, 1969, 1986
Jan 1937–Dec 1939
36-Month
42.7°F
(5.9°C)
42.2°F
(5.7°C)
0.5°F
(0.2°C)
79th Coolest
Coolest since:
1905, 1906
48th Warmest
Warmest since:
2012, 2022
Ties: 1947, 1986, 1988, 1995, 1997
Jan 1936–Dec 1939
48-Month
42.4°F
(5.8°C)
42.2°F
(5.7°C)
0.2°F
(0.1°C)
66th Coolest
Coolest since:
1907
60th Warmest
Warmest since:
2013
Ties: 1938, 1962, 1973, 1989, 1995
Jan 1935–Dec 1939
60-Month
42.2°F
(5.7°C)
42.2°F
(5.7°C)
0.0°F
(0.0°C)
49th Coolest
Coolest since:
1907
76th Warmest
Warmest since:
2013, 2014, 2022
Ties: 1935, 1942, 1962, 1963, 1970

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