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, April 2017

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Warmest/Coolest Since	Record
April 2017 1-Month	55.6°F (13.1°C)	54.0°F (12.2°C)	1.6°F (0.9°C)	87th Coolest	Coolest since: 2011	1967
	55.6°F (13.1°C)	54.0°F (12.2°C)	1.6°F (0.9°C)	43rd Warmest	Warmest since: 2016	1989
	Ties: 1916, 1997
Mar–Apr 2017 2-Month	54.5°F (12.5°C)	51.4°F (10.8°C)	3.1°F (1.7°C)	114th Coolest	Coolest since: 2012	1967
Mar–Apr 2017 2-Month	54.5°F (12.5°C)	51.4°F (10.8°C)	3.1°F (1.7°C)	16th Warmest	Warmest since: 2016	1934
Feb–Apr 2017 3-Month	52.1°F (11.2°C)	49.4°F (9.7°C)	2.7°F (1.5°C)	117th Coolest	Coolest since: 2012	1922
	52.1°F (11.2°C)	49.4°F (9.7°C)	2.7°F (1.5°C)	13th Warmest	Warmest since: 2016	2015
	Ties: 1997
Jan–Apr 2017 4-Month	49.6°F (9.8°C)	47.6°F (8.7°C)	2.0°F (1.1°C)	108th Coolest	Coolest since: 2012	1922
	49.6°F (9.8°C)	47.6°F (8.7°C)	2.0°F (1.1°C)	22nd Warmest	Warmest since: 2016	2015
	Ties: 1994
Dec 2016–Apr 2017 5-Month	48.4°F (9.1°C)	46.7°F (8.2°C)	1.7°F (0.9°C)	106th Coolest	Coolest since: 2012	1917, 1949
	48.4°F (9.1°C)	46.7°F (8.2°C)	1.7°F (0.9°C)	23rd Warmest	Warmest since: 2016	2015
	Ties: 1980
Nov 2016–Apr 2017 6-Month	49.1°F (9.5°C)	47.2°F (8.4°C)	1.9°F (1.1°C)	111th Coolest	Coolest since: 2012	1917
	49.1°F (9.5°C)	47.2°F (8.4°C)	1.9°F (1.1°C)	18th Warmest	Warmest since: 2016	2015
	Ties: 1978
Oct 2016–Apr 2017 7-Month	50.7°F (10.4°C)	48.9°F (9.4°C)	1.8°F (1.0°C)	110th Coolest	Coolest since: 2012	1917
	50.7°F (10.4°C)	48.9°F (9.4°C)	1.8°F (1.0°C)	19th Warmest	Warmest since: 2016	2015
	Ties: 2020
Sep 2016–Apr 2017 8-Month	53.1°F (11.7°C)	51.4°F (10.8°C)	1.7°F (0.9°C)	111th Coolest	Coolest since: 2012	1917
Sep 2016–Apr 2017 8-Month	53.1°F (11.7°C)	51.4°F (10.8°C)	1.7°F (0.9°C)	18th Warmest	Warmest since: 2016	2015
Aug 2016–Apr 2017 9-Month	55.6°F (13.1°C)	53.9°F (12.2°C)	1.7°F (0.9°C)	110th Coolest	Coolest since: 2012	1917
	55.6°F (13.1°C)	53.9°F (12.2°C)	1.7°F (0.9°C)	19th Warmest	Warmest since: 2016	2015
	Ties: 2002
Jul 2016–Apr 2017 10-Month	57.8°F (14.3°C)	56.0°F (13.3°C)	1.8°F (1.0°C)	113th Coolest	Coolest since: 2012	1917
	57.8°F (14.3°C)	56.0°F (13.3°C)	1.8°F (1.0°C)	16th Warmest	Warmest since: 2016	2015
	Ties: 1940, 2009
Jun 2016–Apr 2017 11-Month	59.2°F (15.1°C)	57.1°F (13.9°C)	2.1°F (1.2°C)	117th Coolest	Coolest since: 2012	1917
	59.2°F (15.1°C)	57.1°F (13.9°C)	2.1°F (1.2°C)	12th Warmest	Warmest since: 2016	2015
	Ties: 2019
May 2016–Apr 2017 12-Month	59.4°F (15.2°C)	57.4°F (14.1°C)	2.0°F (1.1°C)	117th Coolest	Coolest since: 2012	1917
	59.4°F (15.2°C)	57.4°F (14.1°C)	2.0°F (1.1°C)	12th Warmest	Warmest since: 2016	2015
	Ties: 1996, 1997, 2007
Nov 2015–Apr 2017 18-Month	56.1°F (13.4°C)	54.0°F (12.2°C)	2.1°F (1.2°C)	118th Coolest	Coolest since: 2013	1949
Nov 2015–Apr 2017 18-Month	56.1°F (13.4°C)	54.0°F (12.2°C)	2.1°F (1.2°C)	10th Warmest	Warmest since: 2016	2015
May 2015–Apr 2017 24-Month	59.7°F (15.4°C)	57.4°F (14.1°C)	2.3°F (1.3°C)	121st Coolest	Coolest since: 2013	1913
	59.7°F (15.4°C)	57.4°F (14.1°C)	2.3°F (1.3°C)	7th Warmest	Warmest since: 2016	2015
	Ties: 2021
May 2014–Apr 2017 36-Month	60.4°F (15.8°C)	57.4°F (14.1°C)	3.0°F (1.7°C)	124th Coolest	Coolest since: 2014	1913, 1917
May 2014–Apr 2017 36-Month	60.4°F (15.8°C)	57.4°F (14.1°C)	3.0°F (1.7°C)	3rd Warmest	Warmest since: 2016	2016
May 2013–Apr 2017 48-Month	60.4°F (15.8°C)	57.4°F (14.1°C)	3.0°F (1.7°C)	123rd Coolest	Coolest since: 2015	1913
May 2013–Apr 2017 48-Month	60.4°F (15.8°C)	57.4°F (14.1°C)	3.0°F (1.7°C)	3rd Warmest	Warmest since: 2016	2016, 2018
May 2012–Apr 2017 60-Month	60.2°F (15.7°C)	57.3°F (14.1°C)	2.9°F (1.6°C)	122nd Coolest	Coolest since: 2016	1913
May 2012–Apr 2017 60-Month	60.2°F (15.7°C)	57.3°F (14.1°C)	2.9°F (1.6°C)	3rd Warmest	Warmest to Date	2018

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published May 2023, retrieved on May 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings