Climate at a Glance
Statewide Rankings
Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of November 2019. For more information, please see Climatological Rankings.
Iowa
Average Temperature Rankings, September 1939
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2019) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
September 1939 1-Month |
68.2°F (20.1°C) | 63.0°F (17.2°C) |
5.2°F (2.9°C) | 121st Coolest | Coolest since: 1938 | 1896, 1993 |
| 5th Warmest | Warmest since: 1933 | 1897, 1931 | ||||
| Ties: 1998, 2019 | ||||||
|
Aug–Sep 1939 2-Month |
69.0°F (20.6°C) | 67.1°F (19.5°C) |
1.9°F (1.1°C) | 101st Coolest | Coolest since: 1935 | 1974, 1992 |
| 25th Warmest | Warmest since: 1938 | 1947 | ||||
| Ties: 1897, 1933, 1959 | ||||||
|
Jul–Sep 1939 3-Month |
71.2°F (21.8°C) | 69.4°F (20.8°C) |
1.8°F (1.0°C) | 104th Coolest | Coolest since: 1934 | 1992 |
| 22nd Warmest | Warmest since: 1938 | 1936 | ||||
| Ties: 1933 | ||||||
|
Jun–Sep 1939 4-Month |
71.1°F (21.7°C) | 69.3°F (20.7°C) |
1.8°F (1.0°C) | 107th Coolest | Coolest since: 1935 | 1915 |
| 19th Warmest | Warmest since: 1938 | 1936 | ||||
| Ties: 1914, 1930 | ||||||
|
May–Sep 1939 5-Month |
70.0°F (21.1°C) | 67.4°F (19.7°C) |
2.6°F (1.4°C) | 119th Coolest | Coolest since: 1938 | 1915 |
| 7th Warmest | Warmest since: 1936 | 1936 | ||||
| Ties: 1911 | ||||||
|
Apr–Sep 1939 6-Month |
66.1°F (18.9°C) | 64.2°F (17.9°C) |
1.9°F (1.0°C) | 110th Coolest | Coolest since: 1938 | 1907 |
| 16th Warmest | Warmest since: 1936 | 1936 | ||||
| Ties: 1998 | ||||||
|
Mar–Sep 1939 7-Month |
61.7°F (16.5°C) | 60.0°F (15.6°C) |
1.7°F (0.9°C) | 105th Coolest | Coolest since: 1937 | 1951 |
| 21st Warmest | Warmest since: 1938 | 2012 | ||||
| Ties: 1901 | ||||||
|
Feb–Sep 1939 8-Month |
56.4°F (13.6°C) | 55.4°F (13.0°C) |
1.0°F (0.6°C) | 94th Coolest | Coolest since: 1937 | 1950 |
| 32nd Warmest | Warmest since: 1938 | 2012 | ||||
| Ties: 1986, 2002 | ||||||
|
Jan–Sep 1939 9-Month |
53.1°F (11.7°C) | 51.2°F (10.7°C) |
1.9°F (1.0°C) | 109th Coolest | Coolest since: 1937 | 1912 |
| 17th Warmest | Warmest since: 1938 | 2012 | ||||
| Ties: 1925, 1991 | ||||||
|
Dec 1938–Sep 1939 10-Month |
50.2°F (10.1°C) | 48.3°F (9.1°C) |
1.9°F (1.0°C) | 105th Coolest | Coolest since: 1937 | 1979 |
| 20th Warmest | Warmest since: 1938 | 2012 | ||||
| Ties: 1941, 1954, 1955, 1976, 1981 | ||||||
|
Nov 1938–Sep 1939 11-Month |
48.9°F (9.4°C) | 47.2°F (8.4°C) |
1.7°F (1.0°C) | 100th Coolest | Coolest since: 1938 | 1912 |
| 25th Warmest | Warmest since: 1934 | 2012 | ||||
|
Oct 1938–Sep 1939 12-Month |
49.7°F (9.8°C) | 47.6°F (8.7°C) |
2.1°F (1.1°C) | 110th Coolest | Coolest since: 1938 | 1912 |
| 15th Warmest | Warmest since: 1934 | 2012 | ||||
| Ties: 1976, 1999 | ||||||
|
Apr 1938–Sep 1939 18-Month |
55.0°F (12.8°C) | 53.1°F (11.7°C) |
1.9°F (1.1°C) | 111th Coolest | Coolest since: 1938 | 1951 |
| 14th Warmest | Warmest since: 1934 | 2012 | ||||
|
Oct 1937–Sep 1939 24-Month |
49.2°F (9.6°C) | 47.6°F (8.7°C) |
1.6°F (0.9°C) | 108th Coolest | Coolest since: 1938 | 1979 |
| 16th Warmest | Warmest since: 1934 | 2017 | ||||
| Ties: 1934 | ||||||
|
Oct 1936–Sep 1939 36-Month |
48.4°F (9.1°C) | 47.5°F (8.6°C) |
0.9°F (0.5°C) | 95th Coolest | Coolest since: 1938 | 1979 |
| 28th Warmest | Warmest since: 1935 | 2000 | ||||
| Ties: 1922, 1931, 1942, 1990, 1992, 2014 | ||||||
|
Oct 1935–Sep 1939 48-Month |
48.0°F (8.9°C) | 47.5°F (8.6°C) |
0.5°F (0.3°C) | 82nd Coolest | Coolest since: 1938 | 1905, 1918 |
| 40th Warmest | Warmest since: 1937 | 1934 | ||||
| Ties: 1937, 1987, 2009 | ||||||
|
Oct 1934–Sep 1939 60-Month |
48.1°F (8.9°C) | 47.5°F (8.6°C) |
0.6°F (0.3°C) | 86th Coolest | Coolest since: 1938 | 1906, 1907 |
| 35th Warmest | Warmest since: 1938 | 2002 | ||||
| Ties: 1937, 1938, 1956, 1958, 2014, 2015 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published December 2019, retrieved on December 11, 2019 from https://www.ncdc.noaa.gov/cag/