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.

California River Basin

Average Temperature Rankings, May 1952

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
May 1952
1-Month
63.1°F
(17.3°C)
60.7°F
(15.9°C)
2.4°F
(1.4°C)
97th Coolest
Coolest since:
1977
32nd Warmest
Warmest since:
2001
Apr–May 1952
2-Month
58.8°F
(14.9°C)
57.4°F
(14.1°C)
1.4°F
(0.8°C)
88th Coolest
Coolest since:
1967
41st Warmest
Warmest since:
1992
Ties: 1993, 2002, 2006, 2015
Mar–May 1952
3-Month
53.7°F
(12.1°C)
54.5°F
(12.5°C)
-0.8°F
(-0.4°C)
44th Coolest
Coolest since:
1917
85th Warmest
Warmest since:
1934
Ties: 1901, 1962
Feb–May 1952
4-Month
51.3°F
(10.7°C)
52.2°F
(11.2°C)
-0.9°F
(-0.5°C)
36th Coolest
Coolest since:
1917
93rd Warmest
Warmest since:
1934
Ties: 1897
Jan–May 1952
5-Month
48.8°F
(9.3°C)
50.2°F
(10.1°C)
-1.4°F
(-0.8°C)
15th Coolest
Coolest since:
1917
114th Warmest
Warmest since:
2015
Ties: 1902, 1942, 1967
Dec 1951–May 1952
6-Month
47.5°F
(8.6°C)
49.1°F
(9.5°C)
-1.6°F
(-0.9°C)
12th Coolest
Coolest since:
1917
116th Warmest
Warmest since:
2015
Ties: 1912, 1964
Nov 1951–May 1952
7-Month
47.7°F
(8.7°C)
49.1°F
(9.5°C)
-1.4°F
(-0.8°C)
14th Coolest
Coolest since:
1917
114th Warmest
Warmest since:
2015
Ties: 1964
Oct 1951–May 1952
8-Month
49.1°F
(9.5°C)
50.4°F
(10.2°C)
-1.3°F
(-0.7°C)
17th Coolest
Coolest since:
1917
111th Warmest
Warmest since:
2015
Ties: 1898
Sep 1951–May 1952
9-Month
51.5°F
(10.8°C)
52.4°F
(11.3°C)
-0.9°F
(-0.5°C)
21st Coolest
Coolest since:
1917
107th Warmest
Warmest since:
2015
Ties: 1915
Aug 1951–May 1952
10-Month
53.6°F
(12.0°C)
54.6°F
(12.6°C)
-1.0°F
(-0.6°C)
20th Coolest
Coolest since:
1917
108th Warmest
Warmest since:
2015
Ties: 1919
Jul 1951–May 1952
11-Month
55.5°F
(13.1°C)
56.4°F
(13.6°C)
-0.9°F
(-0.5°C)
19th Coolest
Coolest since:
1917
109th Warmest
Warmest since:
2015
Ties: 1908, 1915
Jun 1951–May 1952
12-Month
56.6°F
(13.7°C)
57.4°F
(14.1°C)
-0.8°F
(-0.4°C)
21st Coolest
Coolest since:
1917
107th Warmest
Warmest since:
2015
Ties: 1901, 1911, 1944, 1973, 1983
Dec 1950–May 1952
18-Month
54.4°F
(12.4°C)
54.6°F
(12.6°C)
-0.2°F
(-0.2°C)
45th Coolest
Coolest since:
1917
82nd Warmest
Warmest since:
2015
Ties: 1900, 1906, 1915, 1930, 1946, 1969
Jun 1950–May 1952
24-Month
57.5°F
(14.2°C)
57.4°F
(14.1°C)
0.1°F
(0.1°C)
68th Coolest
Coolest since:
1913, 1917
59th Warmest
Warmest since:
2015
Ties: 1905, 1919, 1947, 1970, 1971, 1980, 1984
Jun 1949–May 1952
36-Month
57.4°F
(14.1°C)
57.4°F
(14.1°C)
0.0°F
(0.0°C)
57th Coolest
Coolest since:
1913, 1917
69th Warmest
Warmest since:
2016
Ties: 1931, 1953, 1972
Jun 1948–May 1952
48-Month
56.8°F
(13.8°C)
57.4°F
(14.1°C)
-0.6°F
(-0.3°C)
22nd Coolest
Coolest since:
1913
103rd Warmest
Warmest since:
2016, 2017, 2018
Ties: 1901, 1921, 1945
Jun 1947–May 1952
60-Month
56.7°F
(13.7°C)
57.3°F
(14.1°C)
-0.6°F
(-0.4°C)
16th Coolest
Coolest since:
1913, 1917
108th Warmest
Warmest since:
2018
Ties: 1903, 1922, 1925, 1950

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