Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Great Basin

Average Temperature Rankings, December 1909

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1909
1-Month
21.7°F
(-5.7°C)
29.7°F
(-1.3°C)
-8.0°F
(-4.4°C)
1st Coolest
Coolest since:
1909, 1932
128th Warmest
Warmest since:
1917
Ties: 1932
Nov–Dec 1909
2-Month
30.0°F
(-1.1°C)
33.6°F
(0.9°C)
-3.6°F
(-2.0°C)
12th Coolest
Coolest since:
1931
117th Warmest
Warmest since:
1917
Ties: 1978, 1990
Oct–Dec 1909
3-Month
36.6°F
(2.6°C)
39.0°F
(3.9°C)
-2.4°F
(-1.3°C)
17th Coolest
Coolest since:
1919
112th Warmest
Warmest since:
1950
Sep–Dec 1909
4-Month
42.3°F
(5.7°C)
44.4°F
(6.9°C)
-2.1°F
(-1.2°C)
16th Coolest
Coolest since:
1971
113th Warmest
Warmest since:
2014
Aug–Dec 1909
5-Month
47.8°F
(8.8°C)
49.4°F
(9.7°C)
-1.6°F
(-0.9°C)
15th Coolest
Coolest since:
1916
114th Warmest
Warmest since:
2020
Jul–Dec 1909
6-Month
51.5°F
(10.8°C)
53.1°F
(11.7°C)
-1.6°F
(-0.9°C)
12th Coolest
Coolest since:
1916
117th Warmest
Warmest since:
2020
Jun–Dec 1909
7-Month
53.5°F
(11.9°C)
54.6°F
(12.6°C)
-1.1°F
(-0.7°C)
22nd Coolest
Coolest since:
1916
107th Warmest
Warmest since:
2021
Ties: 1897, 1899, 1914, 1951
May–Dec 1909
8-Month
53.2°F
(11.8°C)
54.5°F
(12.5°C)
-1.3°F
(-0.7°C)
12th Coolest
Coolest since:
1916
117th Warmest
Warmest since:
2021
Ties: 1923, 1948, 1965, 1978
Apr–Dec 1909
9-Month
52.3°F
(11.3°C)
53.6°F
(12.0°C)
-1.3°F
(-0.7°C)
12th Coolest
Coolest since:
1912
117th Warmest
Warmest since:
2021
Ties: 1895, 1899, 1920, 1930, 1948, 1965, 1978
Mar–Dec 1909
10-Month
50.7°F
(10.4°C)
52.0°F
(11.1°C)
-1.3°F
(-0.7°C)
12th Coolest
Coolest since:
1912
117th Warmest
Warmest since:
1934, 2021
Ties: 1895, 1920, 1945, 1965
Feb–Dec 1909
11-Month
49.1°F
(9.5°C)
50.3°F
(10.2°C)
-1.2°F
(-0.7°C)
17th Coolest
Coolest since:
1911, 1912
112th Warmest
Warmest since:
1934
Ties: 1899, 1955, 1965
Jan–Dec 1909
12-Month
47.9°F
(8.8°C)
48.5°F
(9.2°C)
-0.6°F
(-0.4°C)
35th Coolest
Coolest since:
1944
94th Warmest
Warmest since:
1934
Ties: 1902, 1929, 1933, 1942, 1951, 1957
Jul 1908–Dec 1909
18-Month
49.1°F
(9.5°C)
50.0°F
(10.0°C)
-0.9°F
(-0.5°C)
18th Coolest
Coolest since:
1912, 1913
110th Warmest
Warmest since:
1934
Ties: 1920, 1924, 1952, 1975
Jan 1908–Dec 1909
24-Month
47.5°F
(8.6°C)
48.4°F
(9.1°C)
-0.9°F
(-0.5°C)
14th Coolest
Coolest since:
1912, 1913
114th Warmest
Warmest since:
2015
Jan 1907–Dec 1909
36-Month
47.8°F
(8.8°C)
48.5°F
(9.2°C)
-0.7°F
(-0.4°C)
18th Coolest
Coolest since:
1913
109th Warmest
Warmest since:
2016
Ties: 1907, 1925, 1932, 1945, 1965, 1985
Jan 1906–Dec 1909
48-Month
47.8°F
(8.8°C)
48.5°F
(9.2°C)
-0.7°F
(-0.4°C)
19th Coolest
Coolest since:
1914
107th Warmest
Warmest since:
2017
Ties: 1900, 1920, 1932, 1933, 1950
Jan 1905–Dec 1909
60-Month
47.7°F
(8.7°C)
48.4°F
(9.1°C)
-0.7°F
(-0.4°C)
10th Coolest
Coolest since:
1899, 1915, 1916
115th Warmest
Warmest since:
2018
Ties: 1906, 1907, 1914, 1952

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