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.

Ohio River Basin

Average Temperature Rankings, April 1930

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  • Record Coolest
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  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 1930
1-Month
53.5°F
(11.9°C)
51.5°F
(10.8°C)
2.0°F
(1.1°C)
90th Coolest
Coolest since:
1907
39th Warmest
Warmest since:
1896
Ties: 2008
Mar–Apr 1930
2-Month
46.4°F
(8.0°C)
46.4°F
(8.0°C)
0.0°F
(0.0°C)
66th Coolest
Coolest since:
1926
63rd Warmest
Warmest since:
2012
Ties: 1913, 1988
Feb–Apr 1930
3-Month
44.2°F
(6.8°C)
41.5°F
(5.3°C)
2.7°F
(1.5°C)
112th Coolest
Coolest since:
1978
17th Warmest
Warmest since:
2012
Jan–Apr 1930
4-Month
40.2°F
(4.6°C)
38.4°F
(3.6°C)
1.8°F
(1.0°C)
99th Coolest
Coolest since:
1978
30th Warmest
Warmest since:
2017
Ties: 1955, 1986
Dec 1929–Apr 1930
5-Month
38.8°F
(3.8°C)
37.3°F
(2.9°C)
1.5°F
(0.9°C)
91st Coolest
Coolest since:
1978
37th Warmest
Warmest since:
2012
Ties: 1950, 2021
Nov 1929–Apr 1930
6-Month
38.9°F
(3.8°C)
38.1°F
(3.4°C)
0.8°F
(0.4°C)
76th Coolest
Coolest since:
1904
52nd Warmest
Warmest since:
2012
Ties: 1897, 1933, 1972, 2013
Oct 1929–Apr 1930
7-Month
40.8°F
(4.9°C)
40.4°F
(4.7°C)
0.4°F
(0.2°C)
71st Coolest
Coolest since:
1978
57th Warmest
Warmest since:
2017
Ties: 1923, 1947
Sep 1929–Apr 1930
8-Month
43.9°F
(6.6°C)
43.6°F
(6.4°C)
0.3°F
(0.2°C)
68th Coolest
Coolest since:
1918, 1977
60th Warmest
Warmest since:
2017
Ties: 1947, 2009, 2010, 2013
Aug 1929–Apr 1930
9-Month
46.7°F
(8.2°C)
46.7°F
(8.2°C)
0.0°F
(0.0°C)
54th Coolest
Coolest since:
1977
74th Warmest
Warmest since:
2017
Ties: 1896, 1897, 1910, 1931, 1941, 1988
Jul 1929–Apr 1930
10-Month
49.4°F
(9.7°C)
49.5°F
(9.7°C)
-0.1°F
(0.0°C)
53rd Coolest
Coolest since:
1977
75th Warmest
Warmest since:
2017
Ties: 1897, 1900, 1934, 1941, 1967
Jun 1929–Apr 1930
11-Month
51.1°F
(10.6°C)
51.4°F
(10.8°C)
-0.3°F
(-0.2°C)
43rd Coolest
Coolest since:
1977
85th Warmest
Warmest since:
2017
Ties: 1906, 1920, 1947, 1956, 2010
May 1929–Apr 1930
12-Month
51.8°F
(11.0°C)
52.2°F
(11.2°C)
-0.4°F
(-0.2°C)
37th Coolest
Coolest since:
1918
91st Warmest
Warmest since:
2017
Ties: 1917, 1920, 1947, 1967
Nov 1928–Apr 1930
18-Month
47.4°F
(8.6°C)
47.5°F
(8.6°C)
-0.1°F
(0.0°C)
48th Coolest
Coolest since:
1905, 1918
79th Warmest
Warmest since:
2017
Ties: 1899, 1928, 1937, 1940, 1944, 1966, 1993
May 1928–Apr 1930
24-Month
51.9°F
(11.1°C)
52.2°F
(11.2°C)
-0.3°F
(-0.1°C)
36th Coolest
Coolest since:
1978
91st Warmest
Warmest since:
2017
Ties: 1967
May 1927–Apr 1930
36-Month
51.8°F
(11.0°C)
52.2°F
(11.2°C)
-0.4°F
(-0.2°C)
28th Coolest
Coolest since:
1979
98th Warmest
Warmest since:
2018
Ties: 1913, 1927, 1959, 1972, 1983, 2015
May 1926–Apr 1930
48-Month
52.0°F
(11.1°C)
52.1°F
(11.2°C)
-0.1°F
(-0.1°C)
40th Coolest
Coolest since:
1980
85th Warmest
Warmest since:
2019
Ties: 1902, 1911, 1912, 1914, 1931, 1997
May 1925–Apr 1930
60-Month
51.7°F
(10.9°C)
52.1°F
(11.2°C)
-0.4°F
(-0.3°C)
25th Coolest
Coolest since:
1981
99th Warmest
Warmest since:
2020
Ties: 1907, 1928

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