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 1984
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2020) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
September 1984 1-Month |
64.3°F (17.9°C) | 66.2°F (19.0°C) |
-1.9°F (-1.1°C) | 27th Coolest | Coolest since: 1976 | 1918 |
| 100th Warmest | Warmest since: 1983 | 1925, 1933 | ||||
| Ties: 1992 | ||||||
|
Aug–Sep 1984 2-Month |
69.5°F (20.8°C) | 69.8°F (21.0°C) |
-0.3°F (-0.2°C) | 56th Coolest | Coolest since: 1982 | 1967 |
| 71st Warmest | Warmest since: 1983 | 1936 | ||||
| Ties: 2001 | ||||||
|
Jul–Sep 1984 3-Month |
70.8°F (21.6°C) | 71.8°F (22.1°C) |
-1.0°F (-0.5°C) | 36th Coolest | Coolest since: 1982 | 1967 |
| 91st Warmest | Warmest since: 1983 | 1936 | ||||
| Ties: 1958, 1997 | ||||||
|
Jun–Sep 1984 4-Month |
71.7°F (22.1°C) | 71.6°F (22.0°C) |
0.1°F (0.1°C) | 59th Coolest | Coolest since: 1982 | 1915, 1924 |
| 68th Warmest | Warmest since: 1983 | 1936 | ||||
| Ties: 1956, 1970, 2006 | ||||||
|
May–Sep 1984 5-Month |
69.2°F (20.7°C) | 69.7°F (20.9°C) |
-0.5°F (-0.2°C) | 43rd Coolest | Coolest since: 1982 | 1924 |
| 84th Warmest | Warmest since: 1983 | 1936 | ||||
| Ties: 1912, 1942 | ||||||
|
Apr–Sep 1984 6-Month |
66.0°F (18.9°C) | 66.7°F (19.3°C) |
-0.7°F (-0.4°C) | 33rd Coolest | Coolest since: 1982 | 1907 |
| 94th Warmest | Warmest since: 1983 | 2010 | ||||
| Ties: 1946, 1975, 1990, 1993 | ||||||
|
Mar–Sep 1984 7-Month |
61.3°F (16.3°C) | 62.9°F (17.2°C) |
-1.6°F (-0.9°C) | 13th Coolest | Coolest since: 1967 | 1924 |
| 114th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1967 | ||||||
|
Feb–Sep 1984 8-Month |
58.1°F (14.5°C) | 58.6°F (14.8°C) |
-0.5°F (-0.3°C) | 43rd Coolest | Coolest since: 1982 | 1904 |
| 84th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1937, 1997, 2003, 2015 | ||||||
|
Jan–Sep 1984 9-Month |
54.1°F (12.3°C) | 54.9°F (12.7°C) |
-0.8°F (-0.4°C) | 32nd Coolest | Coolest since: 1982 | 1904, 1912 |
| 95th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1928, 1971 | ||||||
|
Dec 1983–Sep 1984 10-Month |
50.4°F (10.2°C) | 52.4°F (11.3°C) |
-2.0°F (-1.1°C) | 12th Coolest | Coolest since: 1982 | 1904 |
| 114th Warmest | Warmest since: 1983 | 2012 | ||||
|
Nov 1983–Sep 1984 11-Month |
49.9°F (9.9°C) | 51.4°F (10.8°C) |
-1.5°F (-0.9°C) | 15th Coolest | Coolest since: 1982 | 1904 |
| 111th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1915, 1940 | ||||||
|
Oct 1983–Sep 1984 12-Month |
50.3°F (10.2°C) | 51.6°F (10.9°C) |
-1.3°F (-0.7°C) | 16th Coolest | Coolest since: 1982 | 1904 |
| 110th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1905, 1958, 1960, 1977 | ||||||
|
Apr 1983–Sep 1984 18-Month |
55.9°F (13.3°C) | 56.6°F (13.7°C) |
-0.7°F (-0.4°C) | 29th Coolest | Coolest since: 1982 | 1904, 1918 |
| 97th Warmest | Warmest since: 1983 | 2012 | ||||
| Ties: 1928 | ||||||
|
Oct 1982–Sep 1984 24-Month |
51.9°F (11.1°C) | 51.6°F (10.9°C) |
0.3°F (0.2°C) | 79th Coolest | Coolest since: 1983 | 1979 |
| 46th Warmest | Warmest since: 1976 | 2017 | ||||
| Ties: 1940, 1947, 1957, 1974, 1995 | ||||||
|
Oct 1981–Sep 1984 36-Month |
51.2°F (10.7°C) | 51.6°F (10.9°C) |
-0.4°F (-0.2°C) | 33rd Coolest | Coolest since: 1982 | 1979 |
| 91st Warmest | Warmest since: 1983 | 2018 | ||||
| Ties: 1900, 1902, 1913, 1927, 1994 | ||||||
|
Oct 1980–Sep 1984 48-Month |
51.3°F (10.7°C) | 51.6°F (10.9°C) |
-0.3°F (-0.2°C) | 34th Coolest | Coolest since: 1982 | 1905 |
| 89th Warmest | Warmest since: 1983 | 2019 | ||||
| Ties: 1900, 1903, 1909, 1928, 1930, 1951, 1960, 1964, 1965 | ||||||
|
Oct 1979–Sep 1984 60-Month |
51.4°F (10.8°C) | 51.6°F (10.9°C) |
-0.2°F (-0.1°C) | 41st Coolest | Coolest since: 1983 | 1906 |
| 81st Warmest | Warmest since: 1977 | 2020 | ||||
| Ties: 1901, 1915, 1917, 1921, 1926, 1951, 1968, 1985, 1996 | ||||||
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/