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.

Great Basin

Average Temperature Rankings, May 1915

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
May 1915
1-Month
51.3°F
(10.7°C)
54.3°F
(12.4°C)
-3.0°F
(-1.7°C)
21st Coolest
Coolest since:
1953
108th Warmest
Warmest since:
1934
Apr–May 1915
2-Month
50.2°F
(10.1°C)
50.0°F
(10.0°C)
0.2°F
(0.1°C)
61st Coolest
Coolest since:
1975
68th Warmest
Warmest since:
1934
Ties: 1984
Mar–May 1915
3-Month
46.8°F
(8.2°C)
46.1°F
(7.8°C)
0.7°F
(0.4°C)
76th Coolest
Coolest since:
1917
53rd Warmest
Warmest since:
1934
Ties: 1930, 1956, 1988
Feb–May 1915
4-Month
43.6°F
(6.4°C)
42.8°F
(6.0°C)
0.8°F
(0.4°C)
80th Coolest
Coolest since:
1933
49th Warmest
Warmest since:
1934
Ties: 1904, 1958, 1978, 1988, 2022
Jan–May 1915
5-Month
40.2°F
(4.6°C)
39.9°F
(4.4°C)
0.3°F
(0.2°C)
70th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
1934
Ties: 1905, 1951, 1963, 1970, 1976
Dec 1914–May 1915
6-Month
37.3°F
(2.9°C)
38.2°F
(3.4°C)
-0.9°F
(-0.5°C)
29th Coolest
Coolest since:
1917
99th Warmest
Warmest since:
1934
Ties: 1920
Nov 1914–May 1915
7-Month
37.6°F
(3.1°C)
38.1°F
(3.4°C)
-0.5°F
(-0.3°C)
34th Coolest
Coolest since:
1917
94th Warmest
Warmest since:
1934
Ties: 1897, 1931, 1983, 1984
Oct 1914–May 1915
8-Month
39.2°F
(4.0°C)
39.6°F
(4.2°C)
-0.4°F
(-0.2°C)
39th Coolest
Coolest since:
1917
89th Warmest
Warmest since:
1934
Ties: 1897, 1910, 1977, 1993
Sep 1914–May 1915
9-Month
41.6°F
(5.3°C)
41.9°F
(5.5°C)
-0.3°F
(-0.2°C)
41st Coolest
Coolest since:
1917
87th Warmest
Warmest since:
1934
Ties: 1901, 1960, 1977
Aug 1914–May 1915
10-Month
44.4°F
(6.9°C)
44.7°F
(7.1°C)
-0.3°F
(-0.2°C)
43rd Coolest
Coolest since:
1917
85th Warmest
Warmest since:
1934
Ties: 1919
Jul 1914–May 1915
11-Month
46.8°F
(8.2°C)
47.1°F
(8.4°C)
-0.3°F
(-0.2°C)
39th Coolest
Coolest since:
1917
89th Warmest
Warmest since:
1934
Ties: 1904, 1908, 1919, 1923, 1984, 1991
Jun 1914–May 1915
12-Month
48.0°F
(8.9°C)
48.4°F
(9.1°C)
-0.4°F
(-0.2°C)
34th Coolest
Coolest since:
1917
94th Warmest
Warmest since:
1934
Ties: 1931, 1946, 1957, 1966
Dec 1913–May 1915
18-Month
45.1°F
(7.3°C)
45.0°F
(7.2°C)
0.1°F
(0.1°C)
66th Coolest
Coolest since:
1917, 1933
61st Warmest
Warmest since:
2015
Ties: 1911, 1931, 1944, 1957, 1963
Jun 1913–May 1915
24-Month
48.2°F
(9.0°C)
48.4°F
(9.1°C)
-0.2°F
(-0.1°C)
43rd Coolest
Coolest since:
1917
84th Warmest
Warmest since:
2015, 2016
Ties: 1900, 1916, 1943, 1952, 1955, 1975, 1980
Jun 1912–May 1915
36-Month
47.5°F
(8.6°C)
48.4°F
(9.1°C)
-0.9°F
(-0.5°C)
8th Coolest
Coolest since:
1917
118th Warmest
Warmest since:
2017
Ties: 1898, 1919
Jun 1911–May 1915
48-Month
47.3°F
(8.5°C)
48.4°F
(9.1°C)
-1.1°F
(-0.6°C)
2nd Coolest
Coolest to Date
1917
123rd Warmest
Warmest since:
2018
Jun 1910–May 1915
60-Month
47.6°F
(8.7°C)
48.4°F
(9.1°C)
-0.8°F
(-0.4°C)
7th Coolest
Coolest since:
1917
117th Warmest
Warmest since:
2018
Ties: 1950

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