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 1895

View Period (Months):
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1895
1-Month
61.3°F
(16.3°C)
60.7°F
(15.9°C)
0.6°F
(0.4°C)
67th Coolest
Coolest since:
1977
62nd Warmest
Warmest to Date
2001
Ties: 1951, 1983, 1994
Apr–May 1895
2-Month
57.5°F
(14.2°C)
57.4°F
(14.1°C)
0.1°F
(0.1°C)
63rd Coolest
Coolest since:
1967
66th Warmest
Warmest to Date
1992
Mar–May 1895
3-Month
54.3°F
(12.4°C)
54.5°F
(12.5°C)
-0.2°F
(-0.1°C)
57th Coolest
Coolest since:
1917
72nd Warmest
Warmest to Date
1934
Ties: 1897, 1919, 1956
Feb–May 1895
4-Month
52.2°F
(11.2°C)
52.2°F
(11.2°C)
0.0°F
(0.0°C)
57th Coolest
Coolest since:
1917
72nd Warmest
Warmest to Date
1934
Ties: 1951, 1973, 1979, 1980
Jan–May 1895
5-Month
49.9°F
(9.9°C)
50.3°F
(10.2°C)
-0.4°F
(-0.3°C)
50th Coolest
Coolest since:
1917
79th Warmest
Warmest to Date
2015
Ties: 1950, 1957

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