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Lewiston, Idaho

Average Temperature Rankings, September 1939

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Period Value 1991-2020
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1939
1-Month
65.3°F
(18.5°C)
65.8°F
(18.8°C)
-0.5°F
(-0.3°C)
88th Coolest
Coolest since:
1895
37th Warmest
Warmest since:
1990
Aug–Sep 1939
2-Month
70.6°F
(21.4°C)
70.4°F
(21.3°C)
0.2°F
(0.1°C)
102nd Coolest
Coolest since:
1912
23rd Warmest
Warmest since:
2022
Jul–Sep 1939
3-Month
72.7°F
(22.6°C)
72.2°F
(22.3°C)
0.5°F
(0.3°C)
106th Coolest
Coolest since:
1912
19th Warmest
Warmest since:
2022
Jun–Sep 1939
4-Month
70.7°F
(21.5°C)
70.8°F
(21.6°C)
-0.1°F
(-0.1°C)
98th Coolest
Coolest since:
1895
27th Warmest
Warmest since:
2021
Ties: 1974
May–Sep 1939
5-Month
68.9°F
(20.5°C)
68.6°F
(20.3°C)
0.3°F
(0.2°C)
103rd Coolest
Coolest since:
1895, 1916
22nd Warmest
Warmest since:
2021
Ties: 1979, 1992
Apr–Sep 1939
6-Month
66.2°F
(19.0°C)
65.7°F
(18.7°C)
0.5°F
(0.3°C)
104th Coolest
Coolest since:
1902, 1916
21st Warmest
Warmest since:
2021
Ties: 1958, 2004, 2020, 2022
Mar–Sep 1939
7-Month
62.9°F
(17.2°C)
62.8°F
(17.1°C)
0.1°F
(0.1°C)
100th Coolest
Coolest since:
1955
25th Warmest
Warmest since:
2021
Ties: 2005
Feb–Sep 1939
8-Month
59.3°F
(15.2°C)
59.8°F
(15.4°C)
-0.5°F
(-0.2°C)
89th Coolest
Coolest since:
1899
36th Warmest
Warmest since:
2015
Ties: 1988, 1997
Jan–Sep 1939
9-Month
56.8°F
(13.8°C)
57.2°F
(14.0°C)
-0.4°F
(-0.2°C)
95th Coolest
Coolest since:
1916
30th Warmest
Warmest since:
2015
Ties: 1981, 2009, 2010
Dec 1938–Sep 1939
10-Month
54.6°F
(12.6°C)
55.0°F
(12.8°C)
-0.4°F
(-0.2°C)
93rd Coolest
Coolest since:
1916
29th Warmest
Warmest since:
2015
Nov 1938–Sep 1939
11-Month
53.0°F
(11.7°C)
53.7°F
(12.1°C)
-0.7°F
(-0.4°C)
86th Coolest
Coolest since:
1916
36th Warmest
Warmest since:
2015
Ties: 1918, 1947, 1983, 1995, 1999
Oct 1938–Sep 1939
12-Month
53.1°F
(11.7°C)
53.6°F
(12.0°C)
-0.5°F
(-0.3°C)
88th Coolest
Coolest since:
1916, 1920
33rd Warmest
Warmest since:
2015
Ties: 2002, 2019
Apr 1938–Sep 1939
18-Month
57.5°F
(14.2°C)
57.6°F
(14.2°C)
-0.1°F
(0.0°C)
96th Coolest
Coolest since:
1917
24th Warmest
Warmest since:
2015
Ties: 1926, 1958, 1994, 1999
Oct 1937–Sep 1939
24-Month
53.5°F
(11.9°C)
53.6°F
(12.0°C)
-0.1°F
(-0.1°C)
97th Coolest
Coolest since:
1917
22nd Warmest
Warmest to Date
2016
Ties: 1988, 2020
Oct 1936–Sep 1939
36-Month
52.3°F
(11.3°C)
53.6°F
(12.0°C)
-1.3°F
(-0.7°C)
70th Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2016, 2017
Ties: 1947, 1984
Oct 1935–Sep 1939
48-Month
52.0°F
(11.1°C)
53.6°F
(12.0°C)
-1.6°F
(-0.9°C)
52nd Coolest
Coolest since:
1913
63rd Warmest
Warmest since:
2016
Ties: 1938, 1948, 1971, 1975
Oct 1934–Sep 1939
60-Month
52.2°F
(11.2°C)
53.6°F
(12.0°C)
-1.4°F
(-0.8°C)
66th Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2016
Ties: 1927, 1961, 1962, 1977, 1978, 1981, 1982, 1983, 1988

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