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 October 2019. For more information, please see Climatological Rankings.
Iowa
Average Temperature Rankings, September 1991
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2019) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
September 1991 1-Month |
62.4°F (16.9°C) | 63.0°F (17.2°C) |
-0.6°F (-0.3°C) | 50th Coolest | Coolest since: 1989 | 1896, 1993 |
| 76th Warmest | Warmest since: 1990 | 1897, 1931 | ||||
| Ties: 1901, 1910, 1976 | ||||||
|
Aug–Sep 1991 2-Month |
67.0°F (19.4°C) | 67.2°F (19.6°C) |
-0.2°F (-0.2°C) | 59th Coolest | Coolest since: 1989 | 1974, 1992 |
| 67th Warmest | Warmest since: 1990 | 1947 | ||||
| Ties: 1944, 1972 | ||||||
|
Jul–Sep 1991 3-Month |
69.2°F (20.7°C) | 69.4°F (20.8°C) |
-0.2°F (-0.1°C) | 53rd Coolest | Coolest since: 1989 | 1992 |
| 73rd Warmest | Warmest since: 1990 | 1936 | ||||
| Ties: 1899, 1932 | ||||||
|
Jun–Sep 1991 4-Month |
70.2°F (21.2°C) | 69.4°F (20.8°C) |
0.8°F (0.4°C) | 86th Coolest | Coolest since: 1990 | 1915 |
| 40th Warmest | Warmest since: 1988 | 1936 | ||||
| Ties: 1935, 1963 | ||||||
|
May–Sep 1991 5-Month |
69.0°F (20.6°C) | 67.5°F (19.7°C) |
1.5°F (0.9°C) | 105th Coolest | Coolest since: 1990 | 1915 |
| 21st Warmest | Warmest since: 1988 | 1936 | ||||
| Ties: 1913, 1980, 1983 | ||||||
|
Apr–Sep 1991 6-Month |
66.0°F (18.9°C) | 64.2°F (17.9°C) |
1.8°F (1.0°C) | 108th Coolest | Coolest since: 1990 | 1907 |
| 18th Warmest | Warmest since: 1988 | 1936 | ||||
| Ties: 1911 | ||||||
|
Mar–Sep 1991 7-Month |
62.2°F (16.8°C) | 60.0°F (15.6°C) |
2.2°F (1.2°C) | 114th Coolest | Coolest since: 1990 | 1951 |
| 12th Warmest | Warmest since: 1988 | 2012 | ||||
| Ties: 1938 | ||||||
|
Feb–Sep 1991 8-Month |
58.1°F (14.5°C) | 55.4°F (13.0°C) |
2.7°F (1.5°C) | 119th Coolest | Coolest since: 1990 | 1950 |
| 7th Warmest | Warmest since: 1987 | 2012 | ||||
| Ties: 1930, 2000, 2005 | ||||||
|
Jan–Sep 1991 9-Month |
53.1°F (11.7°C) | 51.1°F (10.6°C) |
2.0°F (1.1°C) | 109th Coolest | Coolest since: 1989 | 1912 |
| 17th Warmest | Warmest since: 1990 | 2012 | ||||
| Ties: 1925, 1939 | ||||||
|
Dec 1990–Sep 1991 10-Month |
49.8°F (9.9°C) | 48.3°F (9.1°C) |
1.5°F (0.8°C) | 97th Coolest | Coolest since: 1990 | 1979 |
| 28th Warmest | Warmest since: 1988 | 2012 | ||||
|
Nov 1990–Sep 1991 11-Month |
49.0°F (9.4°C) | 47.2°F (8.4°C) |
1.8°F (1.0°C) | 103rd Coolest | Coolest since: 1990 | 1912 |
| 22nd Warmest | Warmest since: 1988 | 2012 | ||||
| Ties: 1932, 1983 | ||||||
|
Oct 1990–Sep 1991 12-Month |
49.1°F (9.5°C) | 47.5°F (8.6°C) |
1.6°F (0.9°C) | 100th Coolest | Coolest since: 1990 | 1912 |
| 25th Warmest | Warmest since: 1988 | 2012 | ||||
|
Apr 1990–Sep 1991 18-Month |
54.1°F (12.3°C) | 53.1°F (11.7°C) |
1.0°F (0.6°C) | 93rd Coolest | Coolest since: 1990 | 1951 |
| 32nd Warmest | Warmest since: 1988 | 2012 | ||||
| Ties: 1933 | ||||||
|
Oct 1989–Sep 1991 24-Month |
48.8°F (9.3°C) | 47.5°F (8.6°C) |
1.3°F (0.7°C) | 102nd Coolest | Coolest since: 1990 | 1979 |
| 22nd Warmest | Warmest since: 1988 | 2017 | ||||
| Ties: 1901, 1914, 1954, 1987 | ||||||
|
Oct 1988–Sep 1991 36-Month |
48.3°F (9.1°C) | 47.5°F (8.6°C) |
0.8°F (0.5°C) | 88th Coolest | Coolest since: 1986 | 1979 |
| 35th Warmest | Warmest since: 1990 | 2000 | ||||
| Ties: 1936 | ||||||
|
Oct 1987–Sep 1991 48-Month |
48.6°F (9.2°C) | 47.5°F (8.6°C) |
1.1°F (0.6°C) | 101st Coolest | Coolest since: 1989 | 1905, 1918 |
| 21st Warmest | Warmest since: 1990 | 1934 | ||||
| Ties: 1989, 2012, 2017 | ||||||
|
Oct 1986–Sep 1991 60-Month |
49.0°F (9.4°C) | 47.5°F (8.6°C) |
1.5°F (0.8°C) | 116th Coolest | Coolest since: 1990 | 1906, 1907 |
| 5th Warmest | Warmest since: 1935 | 2002 | ||||
| Ties: 2003, 2007 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on December 5, 2019 from https://www.ncdc.noaa.gov/cag/