National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Minimum Temperature Rankings, December 2015

View Period (Months):
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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 2015
1-Month
29.25°F
(-1.53°C)
22.60°F
(-5.22°C)
6.65°F
(3.69°C)
128th Coolest
Coolest since:
1909
1st Warmest
Warmest to Date
2015
Nov–Dec 2015
2-Month
31.60°F
(-0.22°C)
26.63°F
(-2.98°C)
4.97°F
(2.76°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest to Date
2015
Oct–Dec 2015
3-Month
36.19°F
(2.33°C)
31.56°F
(-0.24°C)
4.63°F
(2.57°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest to Date
2015
Sep–Dec 2015
4-Month
41.08°F
(5.04°C)
36.65°F
(2.58°C)
4.43°F
(2.46°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest to Date
2015
Aug–Dec 2015
5-Month
44.88°F
(7.16°C)
41.12°F
(5.07°C)
3.76°F
(2.09°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest to Date
2015
Jul–Dec 2015
6-Month
47.71°F
(8.73°C)
44.36°F
(6.87°C)
3.35°F
(1.86°C)
127th Coolest
Coolest since:
1976
2nd Warmest
Warmest to Date
2021
Jun–Dec 2015
7-Month
49.33°F
(9.63°C)
45.97°F
(7.76°C)
3.36°F
(1.87°C)
127th Coolest
Coolest since:
1976
2nd Warmest
Warmest to Date
2021
May–Dec 2015
8-Month
49.31°F
(9.62°C)
46.16°F
(7.87°C)
3.15°F
(1.75°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest to Date
2015
Apr–Dec 2015
9-Month
48.34°F
(9.08°C)
45.32°F
(7.40°C)
3.02°F
(1.68°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2015
Mar–Dec 2015
10-Month
46.81°F
(8.23°C)
43.78°F
(6.54°C)
3.03°F
(1.69°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2015
Feb–Dec 2015
11-Month
44.52°F
(6.96°C)
41.88°F
(5.49°C)
2.64°F
(1.47°C)
126th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2016
Jan–Dec 2015
12-Month
42.71°F
(5.95°C)
40.03°F
(4.46°C)
2.68°F
(1.49°C)
124th Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2016
Jul 2014–Dec 2015
18-Month
43.82°F
(6.57°C)
41.49°F
(5.27°C)
2.33°F
(1.30°C)
123rd Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2016
Jan 2014–Dec 2015
24-Month
41.72°F
(5.40°C)
40.03°F
(4.46°C)
1.69°F
(0.94°C)
115th Coolest
Coolest since:
1917
13th Warmest
Warmest since:
2017
Jan 2013–Dec 2015
36-Month
41.38°F
(5.21°C)
40.02°F
(4.46°C)
1.36°F
(0.75°C)
107th Coolest
Coolest since:
1918
20th Warmest
Warmest since:
2017
Jan 2012–Dec 2015
48-Month
41.76°F
(5.42°C)
40.02°F
(4.46°C)
1.74°F
(0.96°C)
116th Coolest
Coolest since:
1919
10th Warmest
Warmest since:
2018
Jan 2011–Dec 2015
60-Month
41.64°F
(5.36°C)
40.00°F
(4.44°C)
1.64°F
(0.92°C)
115th Coolest
Coolest since:
1920
10th Warmest
Warmest since:
2019

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