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 January 1895. For more information, please see Climatological Rankings.


Delaware

Average Temperature Rankings, September 2018

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2018)
Warmest/Coolest
Since
Record
September 2018
1-Month
73.8°F
(23.2°C)
67.4°F
(19.7°C)
6.4°F
(3.5°C)
124ᵗʰ Coolest Coolest since: 2017 1917
1ˢᵗ Warmest Warmest to Date 2018
Aug–Sep 2018
2-Month
76.2°F
(24.6°C)
70.6°F
(21.4°C)
5.6°F
(3.2°C)
124ᵗʰ Coolest Coolest since: 2017 1927, 1963
1ˢᵗ Warmest Warmest to Date 2018
Jul–Sep 2018
3-Month
76.5°F
(24.7°C)
72.2°F
(22.3°C)
4.3°F
(2.4°C)
123ʳᵈ Coolest Coolest since: 2017 1909
2ⁿᵈ Warmest Warmest since: 2016 2016
Jun–Sep 2018
4-Month
75.6°F
(24.2°C)
71.9°F
(22.2°C)
3.7°F
(2.0°C)
123ʳᵈ Coolest Coolest since: 2017 1927
2ⁿᵈ Warmest Warmest since: 2016 2010
Ties: 2016
May–Sep 2018
5-Month
74.1°F
(23.4°C)
69.9°F
(21.1°C)
4.2°F
(2.3°C)
123ʳᵈ Coolest Coolest since: 2017 1924, 1927
2ⁿᵈ Warmest Warmest since: 2010 2010
Apr–Sep 2018
6-Month
70.3°F
(21.3°C)
66.9°F
(19.4°C)
3.4°F
(1.9°C)
122ⁿᵈ Coolest Coolest since: 2017 1907
3ʳᵈ Warmest Warmest since: 2012 2010
Ties: 2012
Mar–Sep 2018
7-Month
66.1°F
(18.9°C)
63.5°F
(17.5°C)
2.6°F
(1.4°C)
118ᵗʰ Coolest Coolest since: 2017 1924
7ᵗʰ Warmest Warmest since: 2016 2010
Feb–Sep 2018
8-Month
63.2°F
(17.3°C)
59.8°F
(15.4°C)
3.4°F
(1.9°C)
119ᵗʰ Coolest Coolest since: 2016 1907
6ᵗʰ Warmest Warmest since: 2017 2012
Ties: 2016
Jan–Sep 2018
9-Month
59.8°F
(15.4°C)
56.9°F
(13.8°C)
2.9°F
(1.6°C)
118ᵗʰ Coolest Coolest since: 2015 1940
7ᵗʰ Warmest Warmest since: 2017 2012
Ties: 1991
Dec 2017–Sep 2018
10-Month
57.4°F
(14.1°C)
54.8°F
(12.7°C)
2.6°F
(1.4°C)
115ᵗʰ Coolest Coolest since: 2015 1904
9ᵗʰ Warmest Warmest since: 2017 2012
Nov 2017–Sep 2018
11-Month
56.5°F
(13.6°C)
54.0°F
(12.2°C)
2.5°F
(1.4°C)
115ᵗʰ Coolest Coolest since: 2015 1904
9ᵗʰ Warmest Warmest since: 2017 2012
Oct 2017–Sep 2018
12-Month
57.0°F
(13.9°C)
54.2°F
(12.3°C)
2.8°F
(1.6°C)
117ᵗʰ Coolest Coolest since: 2015 1904
7ᵗʰ Warmest Warmest since: 2017 2012
Apr 2017–Sep 2018
18-Month
61.2°F
(16.2°C)
58.4°F
(14.7°C)
2.8°F
(1.5°C)
118ᵗʰ Coolest Coolest since: 2015 1904, 1918
6ᵗʰ Warmest Warmest since: 2017 2012
Oct 2016–Sep 2018
24-Month
57.4°F
(14.1°C)
54.2°F
(12.3°C)
3.2°F
(1.8°C)
120ᵗʰ Coolest Coolest since: 2016 1905
3ʳᵈ Warmest Warmest since: 2017 2017
Ties: 2013
Oct 2015–Sep 2018
36-Month
57.7°F
(14.3°C)
54.2°F
(12.3°C)
3.5°F
(2.0°C)
121ˢᵗ Coolest Coolest since: 2017 1905, 1918
1ˢᵗ Warmest Warmest to Date 2018
Oct 2014–Sep 2018
48-Month
57.1°F
(13.9°C)
54.2°F
(12.3°C)
2.9°F
(1.6°C)
120ᵗʰ Coolest Coolest since: 2017 1905
1ˢᵗ Warmest Warmest since: 2013 2013, 2018
Ties: 2013
Oct 2013–Sep 2018
60-Month
56.6°F
(13.7°C)
54.1°F
(12.3°C)
2.5°F
(1.4°C)
117ᵗʰ Coolest Coolest since: 2017 1908
3ʳᵈ Warmest Warmest since: 2016 2012
Ties: 2014, 2016

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published December 2018, retrieved on December 17, 2018 from https://www.ncdc.noaa.gov/cag/