Regional Rankings

Regional Data Info
Please note, 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.

Northwest

December 1978 Average Temperature Rankings

View Period (Months):
  • Record Coolest
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  • Top ⅓
  • Top ⅒
  • Record Warmest
PeriodValue
1901-2000
Mean		AnomalyRank
(1895-2025)
Coolest/Warmest
Since		Record
December 1978
1-Month
23.5°F
(-4.7°C)
28.8°F
(-1.8°C)
-5.3°F10th Coolest
Coolest since:
1990
121st Warmest
Warmest since:
1917
Ties: 1927
Nov–Dec 1978
2-Month
27.4°F
(-2.6°C)
32.1°F
(0.1°C)
-4.7°F4th Coolest
Coolest since:
1985
127th Warmest
Warmest since:
1917
Oct–Dec 1978
3-Month
34.2°F
(1.2°C)
36.9°F
(2.7°C)
-2.7°F9th Coolest
Coolest since:
1985
122nd Warmest
Warmest since:
1917
Ties: 1905
Sep–Dec 1978
4-Month
39.3°F
(4.1°C)
41.8°F
(5.4°C)
-2.5°F8th Coolest
Coolest since:
1985
123rd Warmest
Warmest since:
1917
Ties: 1911, 1971
Aug–Dec 1978
5-Month
43.9°F
(6.6°C)
46.1°F
(7.8°C)
-2.2°F7th Coolest
Coolest since:
1985
124th Warmest
Warmest since:
2024
Ties: 1924
Jul–Dec 1978
6-Month
47.3°F
(8.5°C)
49.2°F
(9.6°C)
-1.9°F7th Coolest
Coolest since:
1985
124th Warmest
Warmest since:
2024
Ties: 1924
Jun–Dec 1978
7-Month
48.9°F
(9.4°C)
50.4°F
(10.2°C)
-1.5°F11th Coolest
Coolest since:
1916
120th Warmest
Warmest since:
2024
May–Dec 1978
8-Month
48.8°F
(9.3°C)
50.4°F
(10.2°C)
-1.6°F9th Coolest
Coolest since:
1916
122nd Warmest
Warmest since:
2023
Apr–Dec 1978
9-Month
48.1°F
(8.9°C)
49.6°F
(9.8°C)
-1.5°F9th Coolest
Coolest since:
1916
122nd Warmest
Warmest since:
2021
Ties: 1899, 1919
Mar–Dec 1978
10-Month
47.4°F
(8.6°C)
48.3°F
(9.1°C)
-0.9°F25th Coolest
Coolest since:
1916
106th Warmest
Warmest since:
2015
Ties: 1922, 1951
Feb–Dec 1978
11-Month
46.2°F
(7.9°C)
46.7°F
(8.2°C)
-0.5°F35th Coolest
Coolest since:
1955
96th Warmest
Warmest since:
2015
Ties: 1917, 1976
Jan–Dec 1978
12-Month
45.0°F
(7.2°C)
45.1°F
(7.3°C)
-0.1°F54th Coolest
Coolest since:
1916
77th Warmest
Warmest since:
2015
Ties: 1946, 1959, 1962, 1969
Jul 1977–Dec 1978
18-Month
46.5°F
(8.1°C)
46.5°F
(8.1°C)
0.0°F67th Coolest
Coolest since:
1985
63rd Warmest
Warmest since:
2015
Ties: 1945, 1951, 1970
Jan 1977–Dec 1978
24-Month
45.2°F
(7.3°C)
45.1°F
(7.3°C)
0.1°F66th Coolest
Coolest since:
1917
64th Warmest
Warmest since:
2015
Jan 1976–Dec 1978
36-Month
45.1°F
(7.3°C)
45.1°F
(7.3°C)
0.0°F56th Coolest
Coolest since:
1913
73rd Warmest
Warmest since:
2016
Ties: 1925, 1953, 1970, 1975
Jan 1975–Dec 1978
48-Month
44.8°F
(7.1°C)
45.1°F
(7.3°C)
-0.3°F40th Coolest
Coolest since:
1913, 1914
88th Warmest
Warmest since:
2016, 2017
Ties: 1906, 1945, 1948, 1958
Jan 1974–Dec 1978
60-Month
45.0°F
(7.2°C)
45.0°F
(7.2°C)
0.0°F51st Coolest
Coolest since:
1913
76th Warmest
Warmest since:
2018
Ties: 1908, 1926, 1964, 1974

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