Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Maryland

Minimum Temperature Rankings, September 1917

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1917
1-Month
52.0°F
(11.1°C)
56.3°F
(13.5°C)
-4.3°F
(-2.4°C)
4th Coolest
Coolest since:
1914, 1918
125th Warmest
Warmest since:
2018
Aug–Sep 1917
2-Month
57.4°F
(14.1°C)
59.6°F
(15.3°C)
-2.2°F
(-1.2°C)
8th Coolest
Coolest since:
1963
121st Warmest
Warmest since:
2018
Ties: 1902, 1909, 1967
Jul–Sep 1917
3-Month
60.2°F
(15.7°C)
61.3°F
(16.3°C)
-1.1°F
(-0.6°C)
20th Coolest
Coolest since:
1963
109th Warmest
Warmest since:
2018
Ties: 1982
Jun–Sep 1917
4-Month
60.1°F
(15.6°C)
60.9°F
(16.1°C)
-0.8°F
(-0.5°C)
26th Coolest
Coolest since:
1927
103rd Warmest
Warmest since:
2018
Ties: 1953, 1966, 1974
May–Sep 1917
5-Month
57.3°F
(14.1°C)
58.9°F
(14.9°C)
-1.6°F
(-0.8°C)
6th Coolest
Coolest since:
1963, 1967
123rd Warmest
Warmest since:
2018
Ties: 1924, 1997
Apr–Sep 1917
6-Month
54.6°F
(12.6°C)
55.9°F
(13.3°C)
-1.3°F
(-0.7°C)
11th Coolest
Coolest since:
1907, 1927
118th Warmest
Warmest since:
2018, 2019
Ties: 1897
Mar–Sep 1917
7-Month
51.3°F
(10.7°C)
52.5°F
(11.4°C)
-1.2°F
(-0.7°C)
13th Coolest
Coolest since:
1967
116th Warmest
Warmest since:
2010
Ties: 1920
Feb–Sep 1917
8-Month
47.5°F
(8.6°C)
49.0°F
(9.4°C)
-1.5°F
(-0.8°C)
6th Coolest
Coolest since:
1907, 1963
123rd Warmest
Warmest since:
2012
Ties: 1924, 1940, 1947
Jan–Sep 1917
9-Month
44.9°F
(7.2°C)
46.2°F
(7.9°C)
-1.3°F
(-0.7°C)
14th Coolest
Coolest since:
1940
115th Warmest
Warmest since:
2012
Ties: 1905, 1926, 1982
Dec 1916–Sep 1917
10-Month
42.8°F
(6.0°C)
44.3°F
(6.8°C)
-1.5°F
(-0.8°C)
9th Coolest
Coolest since:
1904
119th Warmest
Warmest since:
2012
Ties: 1902, 1967
Nov 1916–Sep 1917
11-Month
42.0°F
(5.6°C)
43.4°F
(6.3°C)
-1.4°F
(-0.7°C)
9th Coolest
Coolest since:
1904
119th Warmest
Warmest since:
2012
Ties: 1956
Oct 1916–Sep 1917
12-Month
42.1°F
(5.6°C)
43.5°F
(6.4°C)
-1.4°F
(-0.8°C)
7th Coolest
Coolest since:
1918
121st Warmest
Warmest since:
2012
Ties: 1967, 1968
Apr 1916–Sep 1917
18-Month
46.5°F
(8.1°C)
47.7°F
(8.7°C)
-1.2°F
(-0.6°C)
8th Coolest
Coolest since:
1918
120th Warmest
Warmest since:
2012
Ties: 1908, 1977
Oct 1915–Sep 1917
24-Month
42.4°F
(5.8°C)
43.5°F
(6.4°C)
-1.1°F
(-0.6°C)
8th Coolest
Coolest since:
1905
119th Warmest
Warmest since:
2017
Ties: 1904, 1927, 1978
Oct 1914–Sep 1917
36-Month
42.7°F
(5.9°C)
43.5°F
(6.4°C)
-0.8°F
(-0.5°C)
14th Coolest
Coolest since:
1918
112th Warmest
Warmest since:
2018, 2021
Ties: 1927, 1966, 1969
Oct 1913–Sep 1917
48-Month
42.8°F
(6.0°C)
43.5°F
(6.4°C)
-0.7°F
(-0.4°C)
18th Coolest
Coolest since:
1905
107th Warmest
Warmest since:
2019, 2020
Oct 1912–Sep 1917
60-Month
43.1°F
(6.2°C)
43.5°F
(6.4°C)
-0.4°F
(-0.2°C)
23rd Coolest
Coolest since:
1967
101st Warmest
Warmest since:
2020
Ties: 1911, 1921, 1929, 1930

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