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 1972

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Warmest/Coolest
Since
Record
May 1972
1-Month
62.1°F
(16.7°C)
60.7°F
(15.9°C)
1.4°F
(0.8°C)
82nd Coolest
Coolest since:
1977
48th Warmest
Warmest since:
2001
Ties: 2005, 2023
Apr–May 1972
2-Month
58.0°F
(14.4°C)
57.4°F
(14.1°C)
0.6°F
(0.3°C)
70th Coolest
Coolest since:
1967
60th Warmest
Warmest since:
1992
Ties: 1914
Mar–May 1972
3-Month
56.8°F
(13.8°C)
54.5°F
(12.5°C)
2.3°F
(1.3°C)
106th Coolest
Coolest since:
1917
24th Warmest
Warmest since:
1934
Ties: 1936, 1986, 1993
Feb–May 1972
4-Month
54.3°F
(12.4°C)
52.2°F
(11.2°C)
2.1°F
(1.2°C)
108th Coolest
Coolest since:
1917
22nd Warmest
Warmest since:
1934
Jan–May 1972
5-Month
51.4°F
(10.8°C)
50.2°F
(10.1°C)
1.2°F
(0.7°C)
91st Coolest
Coolest since:
1917
39th Warmest
Warmest since:
2015
Ties: 1978, 1989
Dec 1971–May 1972
6-Month
49.3°F
(9.6°C)
49.1°F
(9.5°C)
0.2°F
(0.1°C)
71st Coolest
Coolest since:
1917
58th Warmest
Warmest since:
2015
Ties: 1925, 1963, 1993
Nov 1971–May 1972
7-Month
49.1°F
(9.5°C)
49.1°F
(9.5°C)
0.0°F
(0.0°C)
58th Coolest
Coolest since:
1917
71st Warmest
Warmest since:
2015
Ties: 1901, 1918, 1977
Oct 1971–May 1972
8-Month
50.0°F
(10.0°C)
50.4°F
(10.2°C)
-0.4°F
(-0.2°C)
40th Coolest
Coolest since:
1917
89th Warmest
Warmest since:
2015
Ties: 1995, 2010
Sep 1971–May 1972
9-Month
52.0°F
(11.1°C)
52.4°F
(11.3°C)
-0.4°F
(-0.2°C)
39th Coolest
Coolest since:
1917
90th Warmest
Warmest since:
2015
Ties: 1910, 1916, 1945, 1967, 1974, 1998
Aug 1971–May 1972
10-Month
54.4°F
(12.4°C)
54.6°F
(12.6°C)
-0.2°F
(-0.2°C)
48th Coolest
Coolest since:
1917
81st Warmest
Warmest since:
2015
Ties: 1950, 1958, 1967, 1991, 1999
Jul 1971–May 1972
11-Month
56.3°F
(13.5°C)
56.4°F
(13.6°C)
-0.1°F
(-0.1°C)
52nd Coolest
Coolest since:
1917
77th Warmest
Warmest since:
2015
Ties: 1976
Jun 1971–May 1972
12-Month
57.2°F
(14.0°C)
57.4°F
(14.1°C)
-0.2°F
(-0.1°C)
49th Coolest
Coolest since:
1917
80th Warmest
Warmest since:
2015
Ties: 1897, 1904, 1907, 1935, 1953, 1962, 1965, 1976
Dec 1970–May 1972
18-Month
54.0°F
(12.2°C)
54.6°F
(12.6°C)
-0.6°F
(-0.4°C)
24th Coolest
Coolest since:
1917
104th Warmest
Warmest since:
2015
Ties: 1955, 1964, 1965, 1999
Jun 1970–May 1972
24-Month
57.1°F
(13.9°C)
57.4°F
(14.1°C)
-0.3°F
(-0.2°C)
36th Coolest
Coolest since:
1913, 1917
92nd Warmest
Warmest since:
2015
Ties: 1924, 1925, 1930, 1942, 1957, 1964, 1967, 1975, 1976, 1977, 1999
Jun 1969–May 1972
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
70th Warmest
Warmest since:
2016
Ties: 1931, 1952, 1953
Jun 1968–May 1972
48-Month
57.3°F
(14.1°C)
57.4°F
(14.1°C)
-0.1°F
(0.0°C)
49th Coolest
Coolest since:
1913
77th Warmest
Warmest since:
2016, 2017, 2018
Ties: 1926, 1929, 1932, 1944
Jun 1967–May 1972
60-Month
57.5°F
(14.2°C)
57.3°F
(14.1°C)
0.2°F
(0.1°C)
65th Coolest
Coolest since:
1913, 1917
60th Warmest
Warmest since:
2018
Ties: 1928, 1930, 1931, 1939, 1954, 1970, 1971, 1978

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