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, September 1970

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1970 1-Month	51.87°F (11.04°C)	51.90°F (11.06°C)	-0.03°F (-0.02°C)	52nd Coolest	Coolest since: 1968	1918
September 1970 1-Month	51.87°F (11.04°C)	51.90°F (11.06°C)	-0.03°F (-0.02°C)	77th Warmest	Warmest since: 1969	2019
Aug–Sep 1970 2-Month	55.89°F (13.27°C)	55.48°F (13.04°C)	0.41°F (0.23°C)	74th Coolest	Coolest since: 1968	1974
Aug–Sep 1970 2-Month	55.89°F (13.27°C)	55.48°F (13.04°C)	0.41°F (0.23°C)	55th Warmest	Warmest since: 1969	2019
Jul–Sep 1970 3-Month	57.49°F (14.16°C)	57.16°F (13.98°C)	0.33°F (0.18°C)	69th Coolest	Coolest since: 1968	1924
Jul–Sep 1970 3-Month	57.49°F (14.16°C)	57.16°F (13.98°C)	0.33°F (0.18°C)	60th Warmest	Warmest since: 1969	2022
Jun–Sep 1970 4-Month	57.10°F (13.94°C)	56.78°F (13.77°C)	0.32°F (0.17°C)	71st Coolest	Coolest since: 1969	1903
	57.10°F (13.94°C)	56.78°F (13.77°C)	0.32°F (0.17°C)	58th Warmest	Warmest since: 1963	2021
	Ties: 1911
May–Sep 1970 5-Month	55.23°F (12.91°C)	54.91°F (12.73°C)	0.32°F (0.18°C)	70th Coolest	Coolest since: 1968	1907, 1924
May–Sep 1970 5-Month	55.23°F (12.91°C)	54.91°F (12.73°C)	0.32°F (0.18°C)	59th Warmest	Warmest since: 1969	2018
Apr–Sep 1970 6-Month	52.27°F (11.26°C)	52.20°F (11.22°C)	0.07°F (0.04°C)	55th Coolest	Coolest since: 1968	1907
	52.27°F (11.26°C)	52.20°F (11.22°C)	0.07°F (0.04°C)	74th Warmest	Warmest since: 1969	2018
	Ties: 2008
Mar–Sep 1970 7-Month	48.77°F (9.32°C)	49.02°F (9.46°C)	-0.25°F (-0.14°C)	39th Coolest	Coolest since: 1969	1917
Mar–Sep 1970 7-Month	48.77°F (9.32°C)	49.02°F (9.46°C)	-0.25°F (-0.14°C)	90th Warmest	Warmest since: 1963	2012
Feb–Sep 1970 8-Month	45.58°F (7.54°C)	45.75°F (7.64°C)	-0.17°F (-0.10°C)	48th Coolest	Coolest since: 1969	1917
Feb–Sep 1970 8-Month	45.58°F (7.54°C)	45.75°F (7.64°C)	-0.17°F (-0.10°C)	81st Warmest	Warmest since: 1963	2012
Jan–Sep 1970 9-Month	42.41°F (5.78°C)	42.86°F (6.03°C)	-0.45°F (-0.25°C)	34th Coolest	Coolest since: 1968	1917
	42.41°F (5.78°C)	42.86°F (6.03°C)	-0.45°F (-0.25°C)	95th Warmest	Warmest since: 1969	2012
	Ties: 1915, 1947
Dec 1969–Sep 1970 10-Month	40.55°F (4.75°C)	40.84°F (4.91°C)	-0.29°F (-0.16°C)	36th Coolest	Coolest since: 1969	1917
	40.55°F (4.75°C)	40.84°F (4.91°C)	-0.29°F (-0.16°C)	92nd Warmest	Warmest since: 1967	2016
	Ties: 1937, 1963, 1967
Nov 1969–Sep 1970 11-Month	39.59°F (4.22°C)	39.92°F (4.40°C)	-0.33°F (-0.18°C)	34th Coolest	Coolest since: 1969	1917
Nov 1969–Sep 1970 11-Month	39.59°F (4.22°C)	39.92°F (4.40°C)	-0.33°F (-0.18°C)	94th Warmest	Warmest since: 1967	2016
Oct 1969–Sep 1970 12-Month	39.62°F (4.23°C)	40.04°F (4.47°C)	-0.42°F (-0.24°C)	29th Coolest	Coolest since: 1968	1917
	39.62°F (4.23°C)	40.04°F (4.47°C)	-0.42°F (-0.24°C)	99th Warmest	Warmest since: 1969	2016
	Ties: 1964
Apr 1969–Sep 1970 18-Month	44.00°F (6.67°C)	44.09°F (6.72°C)	-0.09°F (-0.05°C)	50th Coolest	Coolest since: 1969	1917
Apr 1969–Sep 1970 18-Month	44.00°F (6.67°C)	44.09°F (6.72°C)	-0.09°F (-0.05°C)	78th Warmest	Warmest since: 1963	2016
Oct 1968–Sep 1970 24-Month	39.69°F (4.27°C)	40.04°F (4.47°C)	-0.35°F (-0.20°C)	33rd Coolest	Coolest since: 1969	1918
	39.69°F (4.27°C)	40.04°F (4.47°C)	-0.35°F (-0.20°C)	94th Warmest	Warmest since: 1967	2017
	Ties: 1977
Oct 1967–Sep 1970 36-Month	39.62°F (4.23°C)	40.02°F (4.46°C)	-0.40°F (-0.23°C)	21st Coolest	Coolest since: 1966	1918
Oct 1967–Sep 1970 36-Month	39.62°F (4.23°C)	40.02°F (4.46°C)	-0.40°F (-0.23°C)	105th Warmest	Warmest since: 1969	2017, 2018
Oct 1966–Sep 1970 48-Month	39.64°F (4.24°C)	40.01°F (4.45°C)	-0.37°F (-0.21°C)	22nd Coolest	Coolest since: 1968	1918
Oct 1966–Sep 1970 48-Month	39.64°F (4.24°C)	40.01°F (4.45°C)	-0.37°F (-0.21°C)	103rd Warmest	Warmest since: 1969	2018
Oct 1965–Sep 1970 60-Month	39.70°F (4.28°C)	40.00°F (4.44°C)	-0.30°F (-0.16°C)	28th Coolest	Coolest since: 1969	1920
Oct 1965–Sep 1970 60-Month	39.70°F (4.28°C)	40.00°F (4.44°C)	-0.30°F (-0.16°C)	96th Warmest	Warmest since: 1967	2019, 2020

Citing This Page

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