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.

California River Basin

Average Temperature Rankings, May 1898

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1898
1-Month
58.6°F
(14.8°C)
60.7°F
(15.9°C)
-2.1°F
(-1.1°C)
29th Coolest
Coolest since:
1977
100th Warmest
Warmest since:
2001
Ties: 2019
Apr–May 1898
2-Month
57.8°F
(14.3°C)
57.4°F
(14.1°C)
0.4°F
(0.2°C)
68th Coolest
Coolest since:
1967
61st Warmest
Warmest since:
1992
Ties: 1925, 1988
Mar–May 1898
3-Month
53.8°F
(12.1°C)
54.5°F
(12.5°C)
-0.7°F
(-0.4°C)
47th Coolest
Coolest since:
1917
82nd Warmest
Warmest since:
1934
Ties: 1976
Feb–May 1898
4-Month
52.1°F
(11.2°C)
52.2°F
(11.2°C)
-0.1°F
(0.0°C)
56th Coolest
Coolest since:
1917
73rd Warmest
Warmest since:
1934
Jan–May 1898
5-Month
49.2°F
(9.6°C)
50.2°F
(10.1°C)
-1.0°F
(-0.5°C)
25th Coolest
Coolest since:
1917
104th Warmest
Warmest since:
2015
Ties: 1918, 1962
Dec 1897–May 1898
6-Month
47.9°F
(8.8°C)
49.0°F
(9.4°C)
-1.1°F
(-0.6°C)
19th Coolest
Coolest since:
1917
109th Warmest
Warmest since:
2015
Ties: 1911, 1944
Nov 1897–May 1898
7-Month
48.0°F
(8.9°C)
49.1°F
(9.5°C)
-1.1°F
(-0.6°C)
20th Coolest
Coolest since:
1917
108th Warmest
Warmest since:
2015
Oct 1897–May 1898
8-Month
49.1°F
(9.5°C)
50.5°F
(10.3°C)
-1.4°F
(-0.8°C)
17th Coolest
Coolest since:
1917
111th Warmest
Warmest since:
2015
Ties: 1952
Sep 1897–May 1898
9-Month
51.1°F
(10.6°C)
52.4°F
(11.3°C)
-1.3°F
(-0.7°C)
14th Coolest
Coolest since:
1917
114th Warmest
Warmest since:
2015
Ties: 1937, 1942, 1948
Aug 1897–May 1898
10-Month
53.4°F
(11.9°C)
54.5°F
(12.5°C)
-1.1°F
(-0.6°C)
16th Coolest
Coolest since:
1917
112th Warmest
Warmest since:
2015
Jul 1897–May 1898
11-Month
55.3°F
(12.9°C)
56.4°F
(13.6°C)
-1.1°F
(-0.7°C)
13th Coolest
Coolest since:
1917
115th Warmest
Warmest since:
2015
Ties: 1920
Jun 1897–May 1898
12-Month
56.4°F
(13.6°C)
57.4°F
(14.1°C)
-1.0°F
(-0.5°C)
16th Coolest
Coolest since:
1917
112th Warmest
Warmest since:
2015
Ties: 1945, 1964
Dec 1896–May 1898
18-Month
53.8°F
(12.1°C)
54.6°F
(12.6°C)
-0.8°F
(-0.5°C)
16th Coolest
Coolest since:
1917
111th Warmest
Warmest since:
2015
Ties: 1904, 1908, 1976
Jun 1896–May 1898
24-Month
56.8°F
(13.8°C)
57.4°F
(14.1°C)
-0.6°F
(-0.3°C)
23rd Coolest
Coolest since:
1913, 1917
104th Warmest
Warmest since:
2015
Ties: 1902, 1948, 1965
Jun 1895–May 1898
36-Month
56.7°F
(13.7°C)
57.4°F
(14.1°C)
-0.7°F
(-0.4°C)
18th Coolest
Coolest since:
1913, 1917
108th Warmest
Warmest to Date
2016
Ties: 1908, 1957

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