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 1985

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
May 1985
1-Month
61.2°F
(16.2°C)
60.7°F
(15.9°C)
0.5°F
(0.3°C)
63rd Coolest
Coolest since:
1977
66th Warmest
Warmest since:
2001
Apr–May 1985
2-Month
59.7°F
(15.4°C)
57.4°F
(14.1°C)
2.3°F
(1.3°C)
101st Coolest
Coolest since:
1967
28th Warmest
Warmest since:
1992
Ties: 1924, 1996
Mar–May 1985
3-Month
55.3°F
(12.9°C)
54.5°F
(12.5°C)
0.8°F
(0.4°C)
83rd Coolest
Coolest since:
1917
46th Warmest
Warmest since:
1934
Ties: 1900, 2002
Feb–May 1985
4-Month
52.8°F
(11.6°C)
52.2°F
(11.2°C)
0.6°F
(0.4°C)
74th Coolest
Coolest since:
1917
55th Warmest
Warmest since:
1934
Jan–May 1985
5-Month
50.6°F
(10.3°C)
50.2°F
(10.1°C)
0.4°F
(0.2°C)
70th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2015
Ties: 1939
Dec 1984–May 1985
6-Month
48.9°F
(9.4°C)
49.1°F
(9.5°C)
-0.2°F
(-0.1°C)
51st Coolest
Coolest since:
1917
77th Warmest
Warmest since:
2015
Ties: 1907, 1916, 1956, 1957, 1983
Nov 1984–May 1985
7-Month
48.7°F
(9.3°C)
49.1°F
(9.5°C)
-0.4°F
(-0.2°C)
43rd Coolest
Coolest since:
1917
85th Warmest
Warmest since:
2015
Ties: 1907, 1908, 1935, 1946, 1965, 1995
Oct 1984–May 1985
8-Month
49.7°F
(9.8°C)
50.4°F
(10.2°C)
-0.7°F
(-0.4°C)
28th Coolest
Coolest since:
1917
100th Warmest
Warmest since:
2015
Ties: 1906, 1915, 1944, 1969, 1998, 1999
Sep 1984–May 1985
9-Month
52.2°F
(11.2°C)
52.4°F
(11.3°C)
-0.2°F
(-0.1°C)
48th Coolest
Coolest since:
1917
80th Warmest
Warmest since:
2015
Ties: 1907, 1995
Aug 1984–May 1985
10-Month
54.5°F
(12.5°C)
54.6°F
(12.6°C)
-0.1°F
(-0.1°C)
54th Coolest
Coolest since:
1917
74th Warmest
Warmest since:
2015
Ties: 1927, 1946, 1976
Jul 1984–May 1985
11-Month
56.5°F
(13.6°C)
56.4°F
(13.6°C)
0.1°F
(0.0°C)
61st Coolest
Coolest since:
1917
67th Warmest
Warmest since:
2015
Ties: 1900, 1924, 1946, 1953, 1995
Jun 1984–May 1985
12-Month
57.5°F
(14.2°C)
57.4°F
(14.1°C)
0.1°F
(0.1°C)
61st Coolest
Coolest since:
1917
67th Warmest
Warmest since:
2015
Ties: 1900, 1958, 1991
Dec 1983–May 1985
18-Month
55.4°F
(13.0°C)
54.6°F
(12.6°C)
0.8°F
(0.4°C)
90th Coolest
Coolest since:
1917
37th Warmest
Warmest since:
2015
Ties: 1978, 1986, 2010, 2012
Jun 1983–May 1985
24-Month
58.0°F
(14.4°C)
57.4°F
(14.1°C)
0.6°F
(0.3°C)
84th Coolest
Coolest since:
1913, 1917
43rd Warmest
Warmest since:
2015
Ties: 1986
Jun 1982–May 1985
36-Month
57.5°F
(14.2°C)
57.4°F
(14.1°C)
0.1°F
(0.1°C)
65th Coolest
Coolest since:
1913, 1917
61st Warmest
Warmest since:
2016
Ties: 1927, 1939, 1943, 1969
Jun 1981–May 1985
48-Month
57.7°F
(14.3°C)
57.4°F
(14.1°C)
0.3°F
(0.2°C)
72nd Coolest
Coolest since:
1913
53rd Warmest
Warmest since:
2016, 2017, 2018
Ties: 1934, 1970, 1980
Jun 1980–May 1985
60-Month
57.9°F
(14.4°C)
57.3°F
(14.1°C)
0.6°F
(0.3°C)
81st Coolest
Coolest since:
1913, 1917
43rd Warmest
Warmest since:
2018
Ties: 1940, 1943, 1960, 1981, 1986

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