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.

Maximum Temperature Rankings, October 1999

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
October 1999 1-Month	68.88°F (20.49°C)	66.80°F (19.33°C)	2.08°F (1.16°C)	108th Coolest	Coolest since: 1998	1925
October 1999 1-Month	68.88°F (20.49°C)	66.80°F (19.33°C)	2.08°F (1.16°C)	21st Warmest	Warmest since: 1963	1963
Sep–Oct 1999 2-Month	73.41°F (23.01°C)	72.31°F (22.39°C)	1.10°F (0.62°C)	94th Coolest	Coolest since: 1997	1925
Sep–Oct 1999 2-Month	73.41°F (23.01°C)	72.31°F (22.39°C)	1.10°F (0.62°C)	35th Warmest	Warmest since: 1998	1963
Aug–Oct 1999 3-Month	77.58°F (25.32°C)	76.58°F (24.77°C)	1.00°F (0.55°C)	97th Coolest	Coolest since: 1997	1912
Aug–Oct 1999 3-Month	77.58°F (25.32°C)	76.58°F (24.77°C)	1.00°F (0.55°C)	32nd Warmest	Warmest since: 1998	1947
Jul–Oct 1999 4-Month	79.90°F (26.61°C)	79.10°F (26.17°C)	0.80°F (0.44°C)	88th Coolest	Coolest since: 1997	1912
	79.90°F (26.61°C)	79.10°F (26.17°C)	0.80°F (0.44°C)	41st Warmest	Warmest since: 1998	2022
	Ties: 1935
Jun–Oct 1999 5-Month	80.00°F (26.67°C)	79.56°F (26.42°C)	0.44°F (0.25°C)	79th Coolest	Coolest since: 1997	1912
	80.00°F (26.67°C)	79.56°F (26.42°C)	0.44°F (0.25°C)	50th Warmest	Warmest since: 1998	2022
	Ties: 1983
May–Oct 1999 6-Month	78.79°F (25.99°C)	78.46°F (25.81°C)	0.33°F (0.18°C)	75th Coolest	Coolest since: 1997	1907
May–Oct 1999 6-Month	78.79°F (25.99°C)	78.46°F (25.81°C)	0.33°F (0.18°C)	54th Warmest	Warmest since: 1998	1934
Apr–Oct 1999 7-Month	76.59°F (24.77°C)	76.31°F (24.62°C)	0.28°F (0.15°C)	74th Coolest	Coolest since: 1997	1907
	76.59°F (24.77°C)	76.31°F (24.62°C)	0.28°F (0.15°C)	55th Warmest	Warmest since: 1998	1934
	Ties: 1958
Mar–Oct 1999 8-Month	73.86°F (23.26°C)	73.40°F (23.00°C)	0.46°F (0.26°C)	80th Coolest	Coolest since: 1997	1912
Mar–Oct 1999 8-Month	73.86°F (23.26°C)	73.40°F (23.00°C)	0.46°F (0.26°C)	49th Warmest	Warmest since: 1998	2012
Feb–Oct 1999 9-Month	71.29°F (21.83°C)	70.22°F (21.23°C)	1.07°F (0.60°C)	99th Coolest	Coolest since: 1997	1912
Feb–Oct 1999 9-Month	71.29°F (21.83°C)	70.22°F (21.23°C)	1.07°F (0.60°C)	30th Warmest	Warmest since: 1998	2012
Jan–Oct 1999 10-Month	68.61°F (20.34°C)	67.25°F (19.58°C)	1.36°F (0.76°C)	108th Coolest	Coolest since: 1997	1912
	68.61°F (20.34°C)	67.25°F (19.58°C)	1.36°F (0.76°C)	21st Warmest	Warmest since: 1998	2012
	Ties: 1938
Dec 1998–Oct 1999 11-Month	66.55°F (19.19°C)	65.03°F (18.35°C)	1.52°F (0.84°C)	113th Coolest	Coolest since: 1998	1912
Dec 1998–Oct 1999 11-Month	66.55°F (19.19°C)	65.03°F (18.35°C)	1.52°F (0.84°C)	15th Warmest	Warmest since: 1954	2012
Nov 1998–Oct 1999 12-Month	65.57°F (18.65°C)	64.01°F (17.78°C)	1.56°F (0.87°C)	114th Coolest	Coolest since: 1998	1912
Nov 1998–Oct 1999 12-Month	65.57°F (18.65°C)	64.01°F (17.78°C)	1.56°F (0.87°C)	14th Warmest	Warmest since: 1954	2012
May 1998–Oct 1999 18-Month	70.35°F (21.31°C)	68.83°F (20.46°C)	1.52°F (0.85°C)	116th Coolest	Coolest since: 1998	1912
May 1998–Oct 1999 18-Month	70.35°F (21.31°C)	68.83°F (20.46°C)	1.52°F (0.85°C)	12th Warmest	Warmest since: 1954	2012
Nov 1997–Oct 1999 24-Month	65.31°F (18.51°C)	63.99°F (17.77°C)	1.32°F (0.74°C)	111th Coolest	Coolest since: 1998	1913
Nov 1997–Oct 1999 24-Month	65.31°F (18.51°C)	63.99°F (17.77°C)	1.32°F (0.74°C)	16th Warmest	Warmest since: 1954	2017
Nov 1996–Oct 1999 36-Month	64.76°F (18.20°C)	63.98°F (17.77°C)	0.78°F (0.43°C)	92nd Coolest	Coolest since: 1998	1917
Nov 1996–Oct 1999 36-Month	64.76°F (18.20°C)	63.98°F (17.77°C)	0.78°F (0.43°C)	34th Warmest	Warmest since: 1992	2018
Nov 1995–Oct 1999 48-Month	64.57°F (18.09°C)	63.97°F (17.76°C)	0.60°F (0.33°C)	86th Coolest	Coolest since: 1998	1915
	64.57°F (18.09°C)	63.97°F (17.76°C)	0.60°F (0.33°C)	39th Warmest	Warmest since: 1992	2018
	Ties: 1957
Nov 1994–Oct 1999 60-Month	64.56°F (18.09°C)	63.96°F (17.76°C)	0.60°F (0.33°C)	88th Coolest	Coolest since: 1998	1907
Nov 1994–Oct 1999 60-Month	64.56°F (18.09°C)	63.96°F (17.76°C)	0.60°F (0.33°C)	36th Warmest	Warmest since: 1992	2016

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published February 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings