Climate at a Glance
Divisional 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 January 2021. For more information, please see Climatological Rankings.
Illinois, Climate Division 8. Southwest
Average Temperature Rankings, May 1991
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2020) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
May 1991 1-Month |
70.8°F (21.6°C) | 65.1°F (18.4°C) |
5.7°F (3.2°C) | 122nd Coolest | Coolest since: 1990 | 1917, 1924 |
| 5th Warmest | Warmest since: 1987 | 2018 | ||||
|
Apr–May 1991 2-Month |
65.0°F (18.3°C) | 60.2°F (15.7°C) |
4.8°F (2.6°C) | 123rd Coolest | Coolest since: 1990 | 1907 |
| 4th Warmest | Warmest since: 1977 | 1896 | ||||
|
Mar–May 1991 3-Month |
59.6°F (15.3°C) | 55.0°F (12.8°C) |
4.6°F (2.5°C) | 124th Coolest | Coolest since: 1990 | 1960 |
| 3rd Warmest | Warmest since: 1977 | 2012 | ||||
|
Feb–May 1991 4-Month |
54.6°F (12.6°C) | 50.0°F (10.0°C) |
4.6°F (2.6°C) | 124th Coolest | Coolest since: 1990 | 1978 |
| 3rd Warmest | Warmest since: 1938 | 2012 | ||||
| Ties: 1938 | ||||||
|
Jan–May 1991 5-Month |
49.4°F (9.7°C) | 46.1°F (7.8°C) |
3.3°F (1.9°C) | 118th Coolest | Coolest since: 1990 | 1978 |
| 9th Warmest | Warmest since: 1946 | 2012 | ||||
|
Dec 1990–May 1991 6-Month |
47.1°F (8.4°C) | 44.2°F (6.8°C) |
2.9°F (1.6°C) | 117th Coolest | Coolest since: 1990 | 1978 |
| 9th Warmest | Warmest since: 1932 | 2012 | ||||
| Ties: 2006 | ||||||
|
Nov 1990–May 1991 7-Month |
47.6°F (8.7°C) | 44.3°F (6.8°C) |
3.3°F (1.9°C) | 120th Coolest | Coolest since: 1990 | 1978 |
| 6th Warmest | Warmest since: 1932 | 2012 | ||||
|
Oct 1990–May 1991 8-Month |
48.6°F (9.2°C) | 46.0°F (7.8°C) |
2.6°F (1.4°C) | 118th Coolest | Coolest since: 1990 | 1978 |
| 8th Warmest | Warmest since: 1932 | 2012 | ||||
|
Sep 1990–May 1991 9-Month |
51.1°F (10.6°C) | 48.6°F (9.2°C) |
2.5°F (1.4°C) | 117th Coolest | Coolest since: 1990 | 1978 |
| 9th Warmest | Warmest since: 1932 | 2012 | ||||
|
Aug 1990–May 1991 10-Month |
53.4°F (11.9°C) | 51.3°F (10.7°C) |
2.1°F (1.2°C) | 117th Coolest | Coolest since: 1990 | 1978 |
| 9th Warmest | Warmest since: 1939 | 2012 | ||||
| Ties: 1939 | ||||||
|
Jul 1990–May 1991 11-Month |
55.5°F (13.1°C) | 53.7°F (12.1°C) |
1.8°F (1.0°C) | 115th Coolest | Coolest since: 1990 | 1918 |
| 11th Warmest | Warmest since: 1955 | 2012 | ||||
|
Jun 1990–May 1991 12-Month |
57.1°F (13.9°C) | 55.4°F (13.0°C) |
1.7°F (0.9°C) | 115th Coolest | Coolest since: 1990 | 1904, 1918 |
| 11th Warmest | Warmest since: 1955 | 2012 | ||||
| Ties: 1939, 1942 | ||||||
|
Dec 1989–May 1991 18-Month |
53.1°F (11.7°C) | 51.7°F (10.9°C) |
1.4°F (0.8°C) | 104th Coolest | Coolest since: 1990 | 1979 |
| 21st Warmest | Warmest since: 1955 | 2017 | ||||
| Ties: 1934, 1953, 2005 | ||||||
|
Jun 1989–May 1991 24-Month |
56.3°F (13.5°C) | 55.4°F (13.0°C) |
0.9°F (0.5°C) | 97th Coolest | Coolest since: 1990 | 1905, 1978 |
| 28th Warmest | Warmest since: 1988 | 2017 | ||||
| Ties: 1987, 1988, 2003 | ||||||
|
Jun 1988–May 1991 36-Month |
56.1°F (13.4°C) | 55.4°F (13.0°C) |
0.7°F (0.4°C) | 92nd Coolest | Coolest since: 1990 | 1979 |
| 32nd Warmest | Warmest since: 1989 | 2018 | ||||
| Ties: 1987, 1988, 1989 | ||||||
|
Jun 1987–May 1991 48-Month |
56.0°F (13.3°C) | 55.4°F (13.0°C) |
0.6°F (0.3°C) | 91st Coolest | Coolest since: 1990 | 1980 |
| 32nd Warmest | Warmest since: 1989 | 2019 | ||||
| Ties: 1938, 1939, 1944, 1988, 1989, 2004, 2010, 2011 | ||||||
|
Jun 1986–May 1991 60-Month |
56.1°F (13.4°C) | 55.3°F (12.9°C) |
0.8°F (0.5°C) | 91st Coolest | Coolest since: 1990 | 1979, 1980, 1981 |
| 31st Warmest | Warmest since: 1958 | 2020 | ||||
| Ties: 1933, 1937, 1941, 1955, 2005, 2011 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published February 2021, retrieved on March 7, 2021 from https://www.ncdc.noaa.gov/cag/