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, October 1940
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2020) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
October 1940 1-Month |
58.6°F (14.8°C) | 54.6°F (12.6°C) |
4.0°F (2.2°C) | 113th Coolest | Coolest since: 1939 | 1925 |
| 14th Warmest | Warmest since: 1938 | 1963 | ||||
|
Sep–Oct 1940 2-Month |
62.0°F (16.7°C) | 60.4°F (15.8°C) |
1.6°F (0.9°C) | 96th Coolest | Coolest since: 1937 | 1917 |
| 31st Warmest | Warmest since: 1939 | 1897, 2016 | ||||
|
Aug–Oct 1940 3-Month |
66.0°F (18.9°C) | 64.7°F (18.2°C) |
1.3°F (0.7°C) | 97th Coolest | Coolest since: 1937 | 1917 |
| 30th Warmest | Warmest since: 1939 | 1947 | ||||
| Ties: 1906, 2019 | ||||||
|
Jul–Oct 1940 4-Month |
68.6°F (20.3°C) | 67.5°F (19.7°C) |
1.1°F (0.6°C) | 99th Coolest | Coolest since: 1937 | 1917 |
| 28th Warmest | Warmest since: 1939 | 1936 | ||||
| Ties: 1922, 1930, 1933, 2002, 2018 | ||||||
|
Jun–Oct 1940 5-Month |
69.3°F (20.7°C) | 68.2°F (20.1°C) |
1.1°F (0.6°C) | 94th Coolest | Coolest since: 1937 | 1917 |
| 33rd Warmest | Warmest since: 1939 | 1936 | ||||
| Ties: 2011, 2019 | ||||||
|
May–Oct 1940 6-Month |
67.6°F (19.8°C) | 67.3°F (19.6°C) |
0.3°F (0.2°C) | 73rd Coolest | Coolest since: 1937 | 1917 |
| 54th Warmest | Warmest since: 1939 | 1936 | ||||
| Ties: 1964 | ||||||
|
Apr–Oct 1940 7-Month |
65.0°F (18.3°C) | 65.0°F (18.3°C) |
0.0°F (0.0°C) | 58th Coolest | Coolest since: 1937 | 1917 |
| 69th Warmest | Warmest since: 1939 | 2010 | ||||
| Ties: 1908, 1952 | ||||||
|
Mar–Oct 1940 8-Month |
61.4°F (16.3°C) | 61.8°F (16.6°C) |
-0.4°F (-0.3°C) | 42nd Coolest | Coolest since: 1937 | 1917 |
| 85th Warmest | Warmest since: 1939 | 2012 | ||||
| Ties: 1903, 1916, 1920, 1927, 1957 | ||||||
|
Feb–Oct 1940 9-Month |
57.8°F (14.3°C) | 58.2°F (14.6°C) |
-0.4°F (-0.3°C) | 44th Coolest | Coolest since: 1937 | 1917 |
| 83rd Warmest | Warmest since: 1939 | 2012 | ||||
| Ties: 1901, 1968, 1974, 1992, 2009 | ||||||
|
Jan–Oct 1940 10-Month |
53.4°F (11.9°C) | 54.9°F (12.7°C) |
-1.5°F (-0.8°C) | 12th Coolest | Coolest since: 1929 | 1904 |
| 115th Warmest | Warmest since: 1939 | 2012 | ||||
| Ties: 1902, 1929, 1966 | ||||||
|
Dec 1939–Oct 1940 11-Month |
51.6°F (10.9°C) | 52.6°F (11.4°C) |
-1.0°F (-0.5°C) | 20th Coolest | Coolest since: 1929 | 1904 |
| 106th Warmest | Warmest since: 1939 | 2012 | ||||
| Ties: 1926, 1945, 1967, 1969, 2009 | ||||||
|
Nov 1939–Oct 1940 12-Month |
50.6°F (10.3°C) | 51.6°F (10.9°C) |
-1.0°F (-0.6°C) | 22nd Coolest | Coolest since: 1929 | 1904 |
| 104th Warmest | Warmest since: 1939 | 2012 | ||||
| Ties: 1929, 1977 | ||||||
|
May 1939–Oct 1940 18-Month |
56.7°F (13.7°C) | 56.8°F (13.8°C) |
-0.1°F (-0.1°C) | 54th Coolest | Coolest since: 1936 | 1904 |
| 72nd Warmest | Warmest since: 1939 | 2012 | ||||
| Ties: 1963, 1965, 2003 | ||||||
|
Nov 1938–Oct 1940 24-Month |
51.9°F (11.1°C) | 51.6°F (10.9°C) |
0.3°F (0.2°C) | 77th Coolest | Coolest since: 1937 | 1905 |
| 48th Warmest | Warmest since: 1939 | 2017 | ||||
| Ties: 1897, 1901, 1943, 1949, 2004 | ||||||
|
Nov 1937–Oct 1940 36-Month |
52.4°F (11.3°C) | 51.6°F (10.9°C) |
0.8°F (0.4°C) | 93rd Coolest | Coolest since: 1938 | 1904, 1979 |
| 31st Warmest | Warmest since: 1939 | 2018 | ||||
| Ties: 1987, 2020 | ||||||
|
Nov 1936–Oct 1940 48-Month |
52.1°F (11.2°C) | 51.6°F (10.9°C) |
0.5°F (0.3°C) | 82nd Coolest | Coolest since: 1938 | 1905 |
| 41st Warmest | Warmest since: 1939 | 2019 | ||||
| Ties: 1921, 1949, 1954, 1999, 2016 | ||||||
|
Nov 1935–Oct 1940 60-Month |
51.9°F (11.1°C) | 51.6°F (10.9°C) |
0.3°F (0.2°C) | 69th Coolest | Coolest since: 1931 | 1905, 1906 |
| 53rd Warmest | Warmest since: 1939 | 2002, 2020 | ||||
| Ties: 1924, 1944, 1946, 1949 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 26, 2021 from https://www.ncdc.noaa.gov/cag/