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 August 2022. For more information, please see Climatological Rankings.
Delaware
Average Temperature Rankings, September 2017
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2021) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
September 2017 1-Month |
69.8°F (21.0°C) | 67.4°F (19.7°C) |
2.4°F (1.3°C) | 103rd Coolest | Coolest since: 2014 | 1917 |
| 25th Warmest | Warmest since: 2016 | 2018 | ||||
| Ties: 1959 | ||||||
|
Aug–Sep 2017 2-Month |
71.9°F (22.2°C) | 70.6°F (21.4°C) |
1.3°F (0.8°C) | 93rd Coolest | Coolest since: 2014 | 1927, 1963 |
| 35th Warmest | Warmest since: 2016 | 2018 | ||||
| Ties: 1921, 1947, 1987, 1993 | ||||||
|
Jul–Sep 2017 3-Month |
74.1°F (23.4°C) | 72.2°F (22.3°C) |
1.9°F (1.1°C) | 105th Coolest | Coolest since: 2014 | 1909 |
| 23rd Warmest | Warmest since: 2016 | 2016 | ||||
| Ties: 1987, 1998 | ||||||
|
Jun–Sep 2017 4-Month |
73.9°F (23.3°C) | 71.8°F (22.1°C) |
2.1°F (1.2°C) | 114th Coolest | Coolest since: 2014 | 1927 |
| 14th Warmest | Warmest since: 2016 | 2010 | ||||
| Ties: 2007, 2008 | ||||||
|
May–Sep 2017 5-Month |
71.7°F (22.1°C) | 69.9°F (21.1°C) |
1.8°F (1.0°C) | 109th Coolest | Coolest since: 2014 | 1924, 1927 |
| 19th Warmest | Warmest since: 2016 | 2010 | ||||
| Ties: 1998, 1999 | ||||||
|
Apr–Sep 2017 6-Month |
69.7°F (20.9°C) | 66.9°F (19.4°C) |
2.8°F (1.5°C) | 120th Coolest | Coolest since: 2016 | 1907 |
| 8th Warmest | Warmest since: 2015 | 2010 | ||||
|
Mar–Sep 2017 7-Month |
66.0°F (18.9°C) | 63.5°F (17.5°C) |
2.5°F (1.4°C) | 118th Coolest | Coolest since: 2015 | 1924 |
| 10th Warmest | Warmest since: 2016 | 2010 | ||||
| Ties: 1991, 2020 | ||||||
|
Feb–Sep 2017 8-Month |
63.3°F (17.4°C) | 59.8°F (15.4°C) |
3.5°F (2.0°C) | 123rd Coolest | Coolest since: 2016 | 1907 |
| 5th Warmest | Warmest since: 2012 | 2012 | ||||
| Ties: 2002 | ||||||
|
Jan–Sep 2017 9-Month |
60.6°F (15.9°C) | 56.9°F (13.8°C) |
3.7°F (2.1°C) | 125th Coolest | Coolest since: 2016 | 1940 |
| 3rd Warmest | Warmest since: 2012 | 2012 | ||||
|
Dec 2016–Sep 2017 10-Month |
58.5°F (14.7°C) | 54.8°F (12.7°C) |
3.7°F (2.0°C) | 122nd Coolest | Coolest since: 2015 | 1904 |
| 5th Warmest | Warmest since: 2016 | 2012 | ||||
|
Nov 2016–Sep 2017 11-Month |
57.6°F (14.2°C) | 54.0°F (12.2°C) |
3.6°F (2.0°C) | 123rd Coolest | Coolest since: 2015 | 1904 |
| 4th Warmest | Warmest since: 2016 | 2012 | ||||
|
Oct 2016–Sep 2017 12-Month |
57.8°F (14.3°C) | 54.2°F (12.3°C) |
3.6°F (2.0°C) | 123rd Coolest | Coolest since: 2015 | 1904 |
| 4th Warmest | Warmest since: 2016 | 2012 | ||||
|
Apr 2016–Sep 2017 18-Month |
61.7°F (16.5°C) | 58.4°F (14.7°C) |
3.3°F (1.8°C) | 122nd Coolest | Coolest since: 2015 | 1904, 1918 |
| 5th Warmest | Warmest since: 2016 | 2012 | ||||
|
Oct 2015–Sep 2017 24-Month |
58.0°F (14.4°C) | 54.2°F (12.3°C) |
3.8°F (2.1°C) | 125th Coolest | Coolest since: 2016 | 1905 |
| 1st Warmest | Warmest to Date | 2017 | ||||
|
Oct 2014–Sep 2017 36-Month |
57.1°F (13.9°C) | 54.2°F (12.3°C) |
2.9°F (1.6°C) | 119th Coolest | Coolest since: 2016 | 1905, 1918 |
| 6th Warmest | Warmest since: 2012 | 2018 | ||||
|
Oct 2013–Sep 2017 48-Month |
56.5°F (13.6°C) | 54.2°F (12.3°C) |
2.3°F (1.3°C) | 117th Coolest | Coolest since: 2016 | 1905 |
| 7th Warmest | Warmest since: 2014 | 2019 | ||||
| Ties: 2014 | ||||||
|
Oct 2012–Sep 2017 60-Month |
56.4°F (13.6°C) | 54.1°F (12.3°C) |
2.3°F (1.3°C) | 113th Coolest | Coolest since: 2015 | 1908 |
| 10th Warmest | Warmest since: 2016 | 2020 | ||||
| Ties: 2002, 2011 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Average Temperature, published September 2022, retrieved on October 3, 2022 from https://www.ncdc.noaa.gov/cag/