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 October 2019. For more information, please see Climatological Rankings.


Delaware

Average Temperature Rankings, December 1909

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2018)
Warmest/Coolest
Since
Record
December 1909
1-Month
30.5°F
(-0.8°C)
36.2°F
(2.3°C)
-5.7°F
(-3.1°C)
10th Coolest Coolest since: 1904 1989
115th Warmest Warmest since: 1908 2015
Nov–Dec 1909
2-Month
39.0°F
(3.9°C)
40.9°F
(4.9°C)
-1.9°F
(-1.0°C)
21st Coolest Coolest since: 1904 1917
104th Warmest Warmest since: 1908 2015
Ties: 1943, 1963, 1980
Oct–Dec 1909
3-Month
43.2°F
(6.2°C)
46.1°F
(7.8°C)
-2.9°F
(-1.6°C)
8th Coolest Coolest since: 1904 1917
117th Warmest Warmest since: 1908 2015
Sep–Dec 1909
4-Month
48.8°F
(9.3°C)
51.5°F
(10.8°C)
-2.7°F
(-1.5°C)
5th Coolest Coolest since: 1904 1917
120th Warmest Warmest since: 1908 2015
Ties: 1903
Aug–Dec 1909
5-Month
53.2°F
(11.8°C)
55.8°F
(13.2°C)
-2.6°F
(-1.4°C)
4th Coolest Coolest since: 1904 1917
121st Warmest Warmest since: 1908 2015
Jul–Dec 1909
6-Month
56.5°F
(13.6°C)
59.2°F
(15.1°C)
-2.7°F
(-1.5°C)
4th Coolest Coolest since: 1904 1917
121st Warmest Warmest since: 1908 2015
Jun–Dec 1909
7-Month
58.5°F
(14.7°C)
60.8°F
(16.0°C)
-2.3°F
(-1.3°C)
4th Coolest Coolest since: 1904 1917
121st Warmest Warmest since: 1908 2015
Ties: 1976
May–Dec 1909
8-Month
58.9°F
(14.9°C)
60.9°F
(16.1°C)
-2.0°F
(-1.2°C)
6th Coolest Coolest since: 1907 1917
119th Warmest Warmest since: 1908 2015
Ties: 1910, 1976
Apr–Dec 1909
9-Month
58.2°F
(14.6°C)
60.0°F
(15.6°C)
-1.8°F
(-1.0°C)
7th Coolest Coolest since: 1907 1917
118th Warmest Warmest since: 1908 2015
Mar–Dec 1909
10-Month
56.4°F
(13.6°C)
58.3°F
(14.6°C)
-1.9°F
(-1.0°C)
7th Coolest Coolest since: 1907 1917
118th Warmest Warmest since: 1908 2012
Feb–Dec 1909
11-Month
55.0°F
(12.8°C)
56.1°F
(13.4°C)
-1.1°F
(-0.6°C)
16th Coolest Coolest since: 1907 1917
109th Warmest Warmest since: 1908 2012
Ties: 1905, 1978
Jan–Dec 1909
12-Month
53.4°F
(11.9°C)
54.1°F
(12.3°C)
-0.7°F
(-0.4°C)
25th Coolest Coolest since: 1907 1904
100th Warmest Warmest since: 1908 2012
Ties: 1918, 1960, 1969
Jul 1908–Dec 1909
18-Month
55.2°F
(12.9°C)
55.9°F
(13.3°C)
-0.7°F
(-0.4°C)
19th Coolest Coolest since: 1907 1904
105th Warmest Warmest since: 1908 2012
Ties: 1902, 1903, 1912, 1915, 1927, 1936, 1966, 1982
Jan 1908–Dec 1909
24-Month
53.7°F
(12.1°C)
54.2°F
(12.3°C)
-0.5°F
(-0.2°C)
29th Coolest Coolest since: 1908 1905
95th Warmest Warmest since: 1901 2012
Ties: 1897, 1912, 1920, 1928, 1961, 1969, 1970
Jan 1907–Dec 1909
36-Month
53.1°F
(11.7°C)
54.1°F
(12.3°C)
-1.0°F
(-0.6°C)
6th Coolest Coolest since: 1907 1905
117th Warmest Warmest since: 1908 2012
Ties: 1907, 1919, 1926
Jan 1906–Dec 1909
48-Month
53.5°F
(11.9°C)
54.2°F
(12.3°C)
-0.7°F
(-0.4°C)
18th Coolest Coolest since: 1908 1907
104th Warmest Warmest since: 1903 2013, 2018
Ties: 1964, 1966, 1970
Jan 1905–Dec 1909
60-Month
53.3°F
(11.8°C)
54.1°F
(12.3°C)
-0.8°F
(-0.5°C)
9th Coolest Coolest since: 1908 1905
112th Warmest Warmest since: 1903 2012
Ties: 1928

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 21, 2019 from https://www.ncdc.noaa.gov/cag/