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 February 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 (1895-2019) |
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) | 103rd 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) | 52nd 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) | 74th 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) | 82nd 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) | 89th 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) | 102nd 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) | 112th 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) | 108th 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) | 103rd 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 |
| 49th 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 |
| 39th 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 |
| 39th 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 |
| 44th 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 |
| 37th 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 |
| 73rd 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 |
| 43rd 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 |
| 66th Warmest | Warmest since: 1977 | 2002 | ||||
| Ties: 1977 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published March 2020, retrieved on April 5, 2020 from https://www.ncdc.noaa.gov/cag/