Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

California River Basin

Average Temperature Rankings, July 1917

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 1917 1-Month	77.3°F (25.2°C)	74.7°F (23.7°C)	2.6°F (1.5°C)	113th Coolest	Coolest since: 1916	1987
	77.3°F (25.2°C)	74.7°F (23.7°C)	2.6°F (1.5°C)	16th Warmest	Warmest since: 1906	2021
	Ties: 1906
Jun–Jul 1917 2-Month	73.2°F (22.9°C)	71.4°F (21.9°C)	1.8°F (1.0°C)	102nd Coolest	Coolest since: 1916	1944
	73.2°F (22.9°C)	71.4°F (21.9°C)	1.8°F (1.0°C)	27th Warmest	Warmest since: 1896	2021
	Ties: 1972, 2004
May–Jul 1917 3-Month	67.3°F (19.6°C)	67.9°F (19.9°C)	-0.6°F (-0.3°C)	39th Coolest	Coolest since: 1916	1953, 1998
	67.3°F (19.6°C)	67.9°F (19.9°C)	-0.6°F (-0.3°C)	90th Warmest	Warmest since: 1914	2021
	Ties: 1901, 1914, 1921
Apr–Jul 1917 4-Month	63.4°F (17.4°C)	64.5°F (18.1°C)	-1.1°F (-0.7°C)	32nd Coolest	Coolest since: 1916	1944
	63.4°F (17.4°C)	64.5°F (18.1°C)	-1.1°F (-0.7°C)	97th Warmest	Warmest since: 1914	2021
	Ties: 1899, 1901, 1909, 1980, 1982
Mar–Jul 1917 5-Month	59.4°F (15.2°C)	61.3°F (16.3°C)	-1.9°F (-1.1°C)	8th Coolest	Coolest since: 1912	1912
	59.4°F (15.2°C)	61.3°F (16.3°C)	-1.9°F (-1.1°C)	121st Warmest	Warmest since: 1916	2013, 2014
	Ties: 1953, 1991, 1998
Feb–Jul 1917 6-Month	56.6°F (13.7°C)	58.6°F (14.8°C)	-2.0°F (-1.1°C)	5th Coolest	Coolest since: 1903	1948
	56.6°F (13.7°C)	58.6°F (14.8°C)	-2.0°F (-1.1°C)	124th Warmest	Warmest since: 1916	2015
	Ties: 1975
Jan–Jul 1917 7-Month	53.8°F (12.1°C)	56.3°F (13.5°C)	-2.5°F (-1.4°C)	2nd Coolest	Coolest since: 1917	1955
Jan–Jul 1917 7-Month	53.8°F (12.1°C)	56.3°F (13.5°C)	-2.5°F (-1.4°C)	127th Warmest	Warmest since: 1916	2014
Dec 1916–Jul 1917 8-Month	52.0°F (11.1°C)	54.7°F (12.6°C)	-2.7°F (-1.5°C)	1st Coolest	Coolest since: 1917	1917
Dec 1916–Jul 1917 8-Month	52.0°F (11.1°C)	54.7°F (12.6°C)	-2.7°F (-1.5°C)	127th Warmest	Warmest since: 1916	2015
Nov 1916–Jul 1917 9-Month	51.3°F (10.7°C)	54.1°F (12.3°C)	-2.8°F (-1.6°C)	1st Coolest	Coolest since: 1917	1917
Nov 1916–Jul 1917 9-Month	51.3°F (10.7°C)	54.1°F (12.3°C)	-2.8°F (-1.6°C)	127th Warmest	Warmest since: 1916	2015
Oct 1916–Jul 1917 10-Month	51.6°F (10.9°C)	54.7°F (12.6°C)	-3.1°F (-1.7°C)	1st Coolest	Coolest since: 1917	1917
Oct 1916–Jul 1917 10-Month	51.6°F (10.9°C)	54.7°F (12.6°C)	-3.1°F (-1.7°C)	127th Warmest	Warmest since: 1916	2015
Sep 1916–Jul 1917 11-Month	52.9°F (11.6°C)	55.8°F (13.2°C)	-2.9°F (-1.6°C)	1st Coolest	Coolest since: 1917	1917
Sep 1916–Jul 1917 11-Month	52.9°F (11.6°C)	55.8°F (13.2°C)	-2.9°F (-1.6°C)	127th Warmest	Warmest since: 1916	2015
Aug 1916–Jul 1917 12-Month	54.5°F (12.5°C)	57.4°F (14.1°C)	-2.9°F (-1.6°C)	1st Coolest	Coolest since: 1917	1917
Aug 1916–Jul 1917 12-Month	54.5°F (12.5°C)	57.4°F (14.1°C)	-2.9°F (-1.6°C)	127th Warmest	Warmest since: 1916	2015
Feb 1916–Jul 1917 18-Month	55.9°F (13.3°C)	57.8°F (14.3°C)	-1.9°F (-1.0°C)	3rd Coolest	Coolest since: 1913	1913, 1949
	55.9°F (13.3°C)	57.8°F (14.3°C)	-1.9°F (-1.0°C)	125th Warmest	Warmest since: 1916	2015
	Ties: 1912
Aug 1915–Jul 1917 24-Month	55.7°F (13.2°C)	57.4°F (14.1°C)	-1.7°F (-0.9°C)	2nd Coolest	Coolest since: 1913	1913
	55.7°F (13.2°C)	57.4°F (14.1°C)	-1.7°F (-0.9°C)	125th Warmest	Warmest since: 1916	2015
	Ties: 1949
Aug 1914–Jul 1917 36-Month	56.0°F (13.3°C)	57.4°F (14.1°C)	-1.4°F (-0.8°C)	2nd Coolest	Coolest since: 1913	1913
Aug 1914–Jul 1917 36-Month	56.0°F (13.3°C)	57.4°F (14.1°C)	-1.4°F (-0.8°C)	124th Warmest	Warmest since: 1916	2015, 2016
Aug 1913–Jul 1917 48-Month	56.5°F (13.6°C)	57.4°F (14.1°C)	-0.9°F (-0.5°C)	8th Coolest	Coolest since: 1915	1913
	56.5°F (13.6°C)	57.4°F (14.1°C)	-0.9°F (-0.5°C)	117th Warmest	Warmest since: 1916	2016
	Ties: 1918, 1919, 1949, 1950
Aug 1912–Jul 1917 60-Month	56.2°F (13.4°C)	57.3°F (14.1°C)	-1.1°F (-0.7°C)	2nd Coolest	Coolest since: 1913	1913
Aug 1912–Jul 1917 60-Month	56.2°F (13.4°C)	57.3°F (14.1°C)	-1.1°F (-0.7°C)	122nd Warmest	Warmest since: 1916	2017, 2018

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings