Regional Rankings

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Month:

Region:

Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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, September 1912

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1912 1-Month	65.8°F (18.8°C)	68.5°F (20.3°C)	-2.7°F (-1.5°C)	14th Coolest	Coolest since: 1911	1986
September 1912 1-Month	65.8°F (18.8°C)	68.5°F (20.3°C)	-2.7°F (-1.5°C)	115th Warmest	Warmest since: 1910	2020
Aug–Sep 1912 2-Month	68.3°F (20.2°C)	71.1°F (21.7°C)	-2.8°F (-1.5°C)	6th Coolest	Coolest since: 1911	1900
Aug–Sep 1912 2-Month	68.3°F (20.2°C)	71.1°F (21.7°C)	-2.8°F (-1.5°C)	123rd Warmest	Warmest since: 1910	2020
Jul–Sep 1912 3-Month	69.4°F (20.8°C)	72.3°F (22.4°C)	-2.9°F (-1.6°C)	2nd Coolest	Coolest since: 1900	1900
Jul–Sep 1912 3-Month	69.4°F (20.8°C)	72.3°F (22.4°C)	-2.9°F (-1.6°C)	127th Warmest	Warmest since: 1911	2022
Jun–Sep 1912 4-Month	68.9°F (20.5°C)	71.3°F (21.8°C)	-2.4°F (-1.3°C)	2nd Coolest	Coolest since: 1907	1907
Jun–Sep 1912 4-Month	68.9°F (20.5°C)	71.3°F (21.8°C)	-2.4°F (-1.3°C)	127th Warmest	Warmest since: 1911	2021
May–Sep 1912 5-Month	67.1°F (19.5°C)	69.2°F (20.7°C)	-2.1°F (-1.2°C)	3rd Coolest	Coolest since: 1911	1907
	67.1°F (19.5°C)	69.2°F (20.7°C)	-2.1°F (-1.2°C)	126th Warmest	Warmest since: 1910	2021
	Ties: 1916, 1965
Apr–Sep 1912 6-Month	64.1°F (17.8°C)	66.7°F (19.3°C)	-2.6°F (-1.5°C)	1st Coolest	Coolest to Date	1912
Apr–Sep 1912 6-Month	64.1°F (17.8°C)	66.7°F (19.3°C)	-2.6°F (-1.5°C)	128th Warmest	Warmest since: 1911	2021
Mar–Sep 1912 7-Month	61.5°F (16.4°C)	64.1°F (17.8°C)	-2.6°F (-1.4°C)	1st Coolest	Coolest to Date	1912
Mar–Sep 1912 7-Month	61.5°F (16.4°C)	64.1°F (17.8°C)	-2.6°F (-1.4°C)	128th Warmest	Warmest since: 1911	2021
Feb–Sep 1912 8-Month	59.6°F (15.3°C)	61.8°F (16.6°C)	-2.2°F (-1.3°C)	2nd Coolest	Coolest since: 1911	1911
	59.6°F (15.3°C)	61.8°F (16.6°C)	-2.2°F (-1.3°C)	127th Warmest	Warmest since: 1910	2015
	Ties: 1948
Jan–Sep 1912 9-Month	57.8°F (14.3°C)	59.6°F (15.3°C)	-1.8°F (-1.0°C)	4th Coolest	Coolest since: 1911	1903, 1911, 1917
	57.8°F (14.3°C)	59.6°F (15.3°C)	-1.8°F (-1.0°C)	125th Warmest	Warmest since: 1910	2015
	Ties: 1955
Dec 1911–Sep 1912 10-Month	56.0°F (13.3°C)	57.9°F (14.4°C)	-1.9°F (-1.1°C)	3rd Coolest	Coolest to Date	1917, 1933
	56.0°F (13.3°C)	57.9°F (14.4°C)	-1.9°F (-1.1°C)	125th Warmest	Warmest since: 1911	2015
	Ties: 1949
Nov 1911–Sep 1912 11-Month	55.3°F (12.9°C)	57.2°F (14.0°C)	-1.9°F (-1.1°C)	3rd Coolest	Coolest to Date	1917
Nov 1911–Sep 1912 11-Month	55.3°F (12.9°C)	57.2°F (14.0°C)	-1.9°F (-1.1°C)	125th Warmest	Warmest since: 1911	2015
Oct 1911–Sep 1912 12-Month	55.5°F (13.1°C)	57.4°F (14.1°C)	-1.9°F (-1.0°C)	2nd Coolest	Coolest to Date	1917
Oct 1911–Sep 1912 12-Month	55.5°F (13.1°C)	57.4°F (14.1°C)	-1.9°F (-1.0°C)	126th Warmest	Warmest since: 1911	2015
Apr 1911–Sep 1912 18-Month	58.4°F (14.7°C)	60.5°F (15.8°C)	-2.1°F (-1.1°C)	2nd Coolest	Coolest to Date	1917
Apr 1911–Sep 1912 18-Month	58.4°F (14.7°C)	60.5°F (15.8°C)	-2.1°F (-1.1°C)	126th Warmest	Warmest since: 1911	2015
Oct 1910–Sep 1912 24-Month	55.8°F (13.2°C)	57.4°F (14.1°C)	-1.6°F (-0.9°C)	3rd Coolest	Coolest to Date	1913, 1949
	55.8°F (13.2°C)	57.4°F (14.1°C)	-1.6°F (-0.9°C)	124th Warmest	Warmest since: 1911	2015
	Ties: 1917
Oct 1909–Sep 1912 36-Month	56.2°F (13.4°C)	57.4°F (14.1°C)	-1.2°F (-0.7°C)	3rd Coolest	Coolest to Date	1913
	56.2°F (13.4°C)	57.4°F (14.1°C)	-1.2°F (-0.7°C)	123rd Warmest	Warmest since: 1911	2016
	Ties: 1950
Oct 1908–Sep 1912 48-Month	56.2°F (13.4°C)	57.4°F (14.1°C)	-1.2°F (-0.7°C)	2nd Coolest	Coolest to Date	1913
Oct 1908–Sep 1912 48-Month	56.2°F (13.4°C)	57.4°F (14.1°C)	-1.2°F (-0.7°C)	123rd Warmest	Warmest since: 1911	2017, 2018
Oct 1907–Sep 1912 60-Month	56.3°F (13.5°C)	57.4°F (14.1°C)	-1.1°F (-0.6°C)	2nd Coolest	Coolest to Date	1913
	56.3°F (13.5°C)	57.4°F (14.1°C)	-1.1°F (-0.6°C)	122nd Warmest	Warmest since: 1911	2018
	Ties: 1917, 1921

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings