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, June 1939

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
June 1939
1-Month
68.4°F
(20.2°C)
68.2°F
(20.1°C)
0.2°F
(0.1°C)
60th Coolest
Coolest since:
1923
69th Warmest
Warmest since:
2021
Ties: 1997
May–Jun 1939
2-Month
65.4°F
(18.6°C)
64.5°F
(18.1°C)
0.9°F
(0.5°C)
78th Coolest
Coolest since:
1953
51st Warmest
Warmest since:
2001
Ties: 1919, 1922, 1934, 1961
Apr–Jun 1939
3-Month
63.0°F
(17.2°C)
61.0°F
(16.1°C)
2.0°F
(1.1°C)
100th Coolest
Coolest since:
1967, 1998
29th Warmest
Warmest since:
2021
Ties: 1936, 1959, 2012
Mar–Jun 1939
4-Month
59.6°F
(15.3°C)
58.0°F
(14.4°C)
1.6°F
(0.9°C)
95th Coolest
Coolest since:
1917
34th Warmest
Warmest since:
2015
Ties: 1984, 1993
Feb–Jun 1939
5-Month
55.7°F
(13.2°C)
55.4°F
(13.0°C)
0.3°F
(0.2°C)
68th Coolest
Coolest since:
1917
61st Warmest
Warmest since:
2015
Ties: 1904, 1974, 1979
Jan–Jun 1939
6-Month
53.6°F
(12.0°C)
53.3°F
(11.8°C)
0.3°F
(0.2°C)
70th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2015
Ties: 1905, 1910
Dec 1938–Jun 1939
7-Month
52.4°F
(11.3°C)
51.8°F
(11.0°C)
0.6°F
(0.3°C)
76th Coolest
Coolest since:
1917
52nd Warmest
Warmest since:
2015
Ties: 1918, 1958
Nov 1938–Jun 1939
8-Month
51.7°F
(10.9°C)
51.5°F
(10.8°C)
0.2°F
(0.1°C)
61st Coolest
Coolest since:
1917
67th Warmest
Warmest since:
2015
Ties: 1925, 1958, 1972, 1985, 1993
Oct 1938–Jun 1939
9-Month
52.4°F
(11.3°C)
52.4°F
(11.3°C)
0.0°F
(0.0°C)
60th Coolest
Coolest since:
1917
68th Warmest
Warmest since:
2015
Ties: 1935, 1956, 1957, 1974
Sep 1938–Jun 1939
10-Month
54.2°F
(12.3°C)
54.0°F
(12.2°C)
0.2°F
(0.1°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2015
Ties: 1904, 1947, 1957, 1963, 1966, 1985, 2010
Aug 1938–Jun 1939
11-Month
56.0°F
(13.3°C)
55.8°F
(13.2°C)
0.2°F
(0.1°C)
68th Coolest
Coolest since:
1917
60th Warmest
Warmest since:
2015
Ties: 1935, 1956, 1963, 1966, 1982, 2010
Jul 1938–Jun 1939
12-Month
57.6°F
(14.2°C)
57.4°F
(14.1°C)
0.2°F
(0.1°C)
71st Coolest
Coolest since:
1917
57th Warmest
Warmest since:
2015
Ties: 1900, 1924, 1935, 1947, 1982
Jan 1938–Jun 1939
18-Month
56.0°F
(13.3°C)
56.0°F
(13.3°C)
0.0°F
(0.0°C)
57th Coolest
Coolest since:
1917
71st Warmest
Warmest since:
2015
Ties: 1930, 1943, 1947, 1958, 1962, 1974, 1977, 2011
Jul 1937–Jun 1939
24-Month
57.9°F
(14.4°C)
57.4°F
(14.1°C)
0.5°F
(0.3°C)
81st Coolest
Coolest since:
1913
46th Warmest
Warmest since:
2015
Ties: 1968
Jul 1936–Jun 1939
36-Month
57.5°F
(14.2°C)
57.4°F
(14.1°C)
0.1°F
(0.1°C)
60th Coolest
Coolest since:
1913, 1917
66th Warmest
Warmest since:
2016
Ties: 1927, 1963, 1969, 1972
Jul 1935–Jun 1939
48-Month
57.6°F
(14.2°C)
57.4°F
(14.1°C)
0.2°F
(0.1°C)
68th Coolest
Coolest since:
1913
57th Warmest
Warmest since:
2016
Ties: 1935, 1938, 1968, 1971
Jul 1934–Jun 1939
60-Month
57.6°F
(14.2°C)
57.4°F
(14.1°C)
0.2°F
(0.1°C)
71st Coolest
Coolest since:
1913, 1917
53rd Warmest
Warmest since:
2018
Ties: 1935, 1936, 1937, 1944, 1970, 1972, 1980

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