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


Delaware

Average Temperature Rankings, September 1999

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1999
1-Month
68.6°F
(20.3°C)
67.4°F
(19.7°C)
1.2°F
(0.6°C)
84th Coolest Coolest since: 1997 1917
42nd Warmest Warmest since: 1998 2018
Ties: 1911, 1912, 1934, 1944
Aug–Sep 1999
2-Month
72.4°F
(22.4°C)
70.6°F
(21.4°C)
1.8°F
(1.0°C)
101st Coolest Coolest since: 1997 1927, 1963
25th Warmest Warmest since: 1998 2018
Ties: 1973
Jul–Sep 1999
3-Month
74.7°F
(23.7°C)
72.2°F
(22.3°C)
2.5°F
(1.4°C)
115th Coolest Coolest since: 1998 1909
11th Warmest Warmest since: 1980 2016
Ties: 1955, 2015
Jun–Sep 1999
4-Month
73.8°F
(23.2°C)
71.8°F
(22.1°C)
2.0°F
(1.1°C)
111th Coolest Coolest since: 1998 1927
15th Warmest Warmest since: 1987 2010
May–Sep 1999
5-Month
71.7°F
(22.1°C)
69.9°F
(21.1°C)
1.8°F
(1.0°C)
109th Coolest Coolest since: 1998 1924, 1927
17th Warmest Warmest since: 1998 2010
Ties: 1998, 2017
Apr–Sep 1999
6-Month
68.6°F
(20.3°C)
66.9°F
(19.4°C)
1.7°F
(0.9°C)
108th Coolest Coolest since: 1997 1907
18th Warmest Warmest since: 1998 2010
Ties: 1957, 2008
Mar–Sep 1999
7-Month
64.8°F
(18.2°C)
63.4°F
(17.4°C)
1.4°F
(0.8°C)
102nd Coolest Coolest since: 1997 1924
24th Warmest Warmest since: 1998 2010
Ties: 1942, 1957, 1985
Feb–Sep 1999
8-Month
61.5°F
(16.4°C)
59.8°F
(15.4°C)
1.7°F
(1.0°C)
109th Coolest Coolest since: 1997 1907
17th Warmest Warmest since: 1998 2012
Ties: 1925, 1945, 1957, 1959
Jan–Sep 1999
9-Month
58.9°F
(14.9°C)
56.9°F
(13.8°C)
2.0°F
(1.1°C)
110th Coolest Coolest since: 1997 1940
16th Warmest Warmest since: 1998 2012
Dec 1998–Sep 1999
10-Month
57.2°F
(14.0°C)
54.8°F
(12.7°C)
2.4°F
(1.3°C)
113th Coolest Coolest since: 1997 1904
12th Warmest Warmest since: 1998 2012
Ties: 2018
Nov 1998–Sep 1999
11-Month
56.3°F
(13.5°C)
54.0°F
(12.2°C)
2.3°F
(1.3°C)
112th Coolest Coolest since: 1997 1904
13th Warmest Warmest since: 1998 2012
Ties: 1995, 2008, 2018
Oct 1998–Sep 1999
12-Month
56.4°F
(13.6°C)
54.2°F
(12.3°C)
2.2°F
(1.3°C)
112th Coolest Coolest since: 1997 1904
13th Warmest Warmest since: 1998 2012
Ties: 2007
Apr 1998–Sep 1999
18-Month
60.6°F
(15.9°C)
58.5°F
(14.7°C)
2.1°F
(1.2°C)
112th Coolest Coolest since: 1998 1904, 1918
13th Warmest Warmest since: 1991 2012
Ties: 2007
Oct 1997–Sep 1999
24-Month
56.7°F
(13.7°C)
54.2°F
(12.3°C)
2.5°F
(1.4°C)
117th Coolest Coolest since: 1998 1905
7th Warmest Warmest to Date 2017
Ties: 2008, 2016
Oct 1996–Sep 1999
36-Month
56.0°F
(13.3°C)
54.1°F
(12.3°C)
1.9°F
(1.0°C)
106th Coolest Coolest since: 1998 1905, 1918
17th Warmest Warmest to Date 2018
Oct 1995–Sep 1999
48-Month
55.4°F
(13.0°C)
54.1°F
(12.3°C)
1.3°F
(0.7°C)
98th Coolest Coolest since: 1998 1905
24th Warmest Warmest since: 1998 2019
Ties: 1998
Oct 1994–Sep 1999
60-Month
55.6°F
(13.1°C)
54.2°F
(12.3°C)
1.4°F
(0.8°C)
101st Coolest Coolest since: 1998 1908
20th Warmest Warmest to Date 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 23, 2019 from https://www.ncdc.noaa.gov/cag/