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.


Delaware

Average Temperature Rankings, September 2017

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
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
24th 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
34th 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
22nd 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
13th 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
18th 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)
119th 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)
117th Coolest Coolest since: 2015 1924
10th Warmest Warmest since: 2016 2010
Ties: 1991
Feb–Sep 2017
8-Month
63.3°F
(17.4°C)
59.8°F
(15.4°C)
3.5°F
(2.0°C)
122nd 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)
124th 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)
121st Coolest Coolest since: 2015 1904
5th Warmest Warmest since: 2016 2012
Ties: 2020
Nov 2016–Sep 2017
11-Month
57.6°F
(14.2°C)
54.0°F
(12.2°C)
3.6°F
(2.0°C)
122nd 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)
122nd 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)
121st 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)
124th 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
5th 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
6th 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
9th Warmest Warmest since: 2016 2020
Ties: 2002, 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 23, 2021 from https://www.ncdc.noaa.gov/cag/