National Rankings

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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

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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: 2014	1909
December 2015 1-Month	29.25°F (-1.53°C)	22.60°F (-5.22°C)	6.65°F (3.69°C)	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: 2014	1976
Nov–Dec 2015 2-Month	31.60°F (-0.22°C)	26.63°F (-2.98°C)	4.97°F (2.76°C)	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: 2014	1976
Oct–Dec 2015 3-Month	36.19°F (2.33°C)	31.56°F (-0.24°C)	4.63°F (2.57°C)	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: 2014	1976
Sep–Dec 2015 4-Month	41.08°F (5.04°C)	36.65°F (2.58°C)	4.43°F (2.46°C)	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: 2014	1976
Aug–Dec 2015 5-Month	44.88°F (7.16°C)	41.12°F (5.07°C)	3.76°F (2.09°C)	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: 2014	1976
Jul–Dec 2015 6-Month	47.71°F (8.73°C)	44.36°F (6.87°C)	3.35°F (1.86°C)	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: 2014	1976
Jun–Dec 2015 7-Month	49.33°F (9.63°C)	45.97°F (7.76°C)	3.36°F (1.87°C)	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: 2014	1976
May–Dec 2015 8-Month	49.31°F (9.62°C)	46.16°F (7.87°C)	3.15°F (1.75°C)	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: 2014	1917
Apr–Dec 2015 9-Month	48.34°F (9.08°C)	45.32°F (7.40°C)	3.02°F (1.68°C)	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: 2014	1917
Mar–Dec 2015 10-Month	46.81°F (8.23°C)	43.78°F (6.54°C)	3.03°F (1.69°C)	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: 2014	1917
Feb–Dec 2015 11-Month	44.52°F (6.96°C)	41.88°F (5.49°C)	2.64°F (1.47°C)	3rd Warmest	Warmest since: 2012	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: 2014	1917
Jan–Dec 2015 12-Month	42.71°F (5.95°C)	40.03°F (4.46°C)	2.68°F (1.49°C)	5th Warmest	Warmest since: 2012	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: 2014	1917
Jul 2014–Dec 2015 18-Month	43.82°F (6.57°C)	41.49°F (5.27°C)	2.33°F (1.30°C)	5th Warmest	Warmest since: 2012	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: 2014	1917
Jan 2014–Dec 2015 24-Month	41.72°F (5.40°C)	40.03°F (4.46°C)	1.69°F (0.94°C)	13th Warmest	Warmest since: 2013	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: 2011	1918
Jan 2013–Dec 2015 36-Month	41.38°F (5.21°C)	40.02°F (4.46°C)	1.36°F (0.75°C)	20th Warmest	Warmest since: 2014	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: 2014	1919
Jan 2012–Dec 2015 48-Month	41.76°F (5.42°C)	40.02°F (4.46°C)	1.74°F (0.96°C)	10th Warmest	Warmest since: 2007	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: 2014	1920
Jan 2011–Dec 2015 60-Month	41.64°F (5.36°C)	40.00°F (4.44°C)	1.64°F (0.92°C)	10th Warmest	Warmest since: 2007	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings