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 December 2020. For more information, please see Climatological Rankings.
Illinois
Average Temperature Rankings, September 1986
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2020) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
September 1986 1-Month |
69.2°F (20.7°C) | 66.2°F (19.0°C) |
3.0°F (1.7°C) | 104th Coolest | Coolest since: 1985 | 1918 |
| 23rd Warmest | Warmest since: 1978 | 1925, 1933 | ||||
| Ties: 1971 | ||||||
|
Aug–Sep 1986 2-Month |
69.4°F (20.8°C) | 69.8°F (21.0°C) |
-0.4°F (-0.2°C) | 53rd Coolest | Coolest since: 1985 | 1967 |
| 74th Warmest | Warmest since: 1984 | 1936 | ||||
| Ties: 1912, 2008 | ||||||
|
Jul–Sep 1986 3-Month |
72.2°F (22.3°C) | 71.8°F (22.1°C) |
0.4°F (0.2°C) | 75th Coolest | Coolest since: 1985 | 1967 |
| 52nd Warmest | Warmest since: 1983 | 1936 | ||||
| Ties: 1895, 1970, 2015 | ||||||
|
Jun–Sep 1986 4-Month |
72.4°F (22.4°C) | 71.7°F (22.1°C) |
0.7°F (0.3°C) | 83rd Coolest | Coolest since: 1985 | 1915, 1924 |
| 44th Warmest | Warmest since: 1983 | 1936 | ||||
| Ties: 1947, 1973 | ||||||
|
May–Sep 1986 5-Month |
70.7°F (21.5°C) | 69.7°F (20.9°C) |
1.0°F (0.6°C) | 90th Coolest | Coolest since: 1985 | 1924 |
| 37th Warmest | Warmest since: 1983 | 1936 | ||||
| Ties: 1925, 2011 | ||||||
|
Apr–Sep 1986 6-Month |
68.2°F (20.1°C) | 66.7°F (19.3°C) |
1.5°F (0.8°C) | 103rd Coolest | Coolest since: 1985 | 1907 |
| 24th Warmest | Warmest since: 1977 | 2010 | ||||
| Ties: 1911, 1931, 2002 | ||||||
|
Mar–Sep 1986 7-Month |
64.7°F (18.2°C) | 62.8°F (17.1°C) |
1.9°F (1.1°C) | 113th Coolest | Coolest since: 1985 | 1924 |
| 14th Warmest | Warmest since: 1977 | 2012 | ||||
| Ties: 1933, 1934, 1938, 2005 | ||||||
|
Feb–Sep 1986 8-Month |
60.2°F (15.7°C) | 58.7°F (14.8°C) |
1.5°F (0.9°C) | 109th Coolest | Coolest since: 1985 | 1904 |
| 18th Warmest | Warmest since: 1977 | 2012 | ||||
| Ties: 1931, 1953, 1999, 2002, 2007, 2018 | ||||||
|
Jan–Sep 1986 9-Month |
56.6°F (13.7°C) | 55.0°F (12.8°C) |
1.6°F (0.9°C) | 104th Coolest | Coolest since: 1985 | 1904, 1912 |
| 23rd Warmest | Warmest since: 1955 | 2012 | ||||
| Ties: 1934 | ||||||
|
Dec 1985–Sep 1986 10-Month |
53.0°F (11.7°C) | 52.4°F (11.3°C) |
0.6°F (0.4°C) | 76th Coolest | Coolest since: 1985 | 1904 |
| 50th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1957, 2013 | ||||||
|
Nov 1985–Sep 1986 11-Month |
52.0°F (11.1°C) | 51.4°F (10.8°C) |
0.6°F (0.3°C) | 86th Coolest | Coolest since: 1985 | 1904 |
| 40th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1896, 1930, 1946, 2013 | ||||||
|
Oct 1985–Sep 1986 12-Month |
52.3°F (11.3°C) | 51.6°F (10.9°C) |
0.7°F (0.4°C) | 86th Coolest | Coolest since: 1985 | 1904 |
| 40th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1898, 1913, 1949, 1972, 1990 | ||||||
|
Apr 1985–Sep 1986 18-Month |
57.2°F (14.0°C) | 56.7°F (13.7°C) |
0.5°F (0.3°C) | 81st Coolest | Coolest since: 1985 | 1904, 1918 |
| 45th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1956, 1976, 2004 | ||||||
|
Oct 1984–Sep 1986 24-Month |
52.1°F (11.2°C) | 51.6°F (10.9°C) |
0.5°F (0.3°C) | 87th Coolest | Coolest since: 1985 | 1979 |
| 38th Warmest | Warmest since: 1976 | 2017 | ||||
| Ties: 1943, 1949, 1973, 1976, 2010 | ||||||
|
Oct 1983–Sep 1986 36-Month |
51.5°F (10.8°C) | 51.6°F (10.9°C) |
-0.1°F (-0.1°C) | 50th Coolest | Coolest since: 1984 | 1979 |
| 74th Warmest | Warmest since: 1985 | 2018 | ||||
| Ties: 1910, 1925, 1945, 1977 | ||||||
|
Oct 1982–Sep 1986 48-Month |
52.0°F (11.1°C) | 51.6°F (10.9°C) |
0.4°F (0.2°C) | 79th Coolest | Coolest since: 1985 | 1905 |
| 44th Warmest | Warmest since: 1976 | 2019 | ||||
| Ties: 1940, 1949, 1976, 1998, 2011 | ||||||
|
Oct 1981–Sep 1986 60-Month |
51.6°F (10.9°C) | 51.6°F (10.9°C) |
0.0°F (0.0°C) | 55th Coolest | Coolest since: 1985 | 1906 |
| 67th Warmest | Warmest since: 1977 | 2020 | ||||
| Ties: 1977 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 19, 2021 from https://www.ncdc.noaa.gov/cag/