Regional Rankings

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Year:

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 2015

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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 2015 1-Month	56.7°F (13.7°C)	54.0°F (12.2°C)	2.7°F (1.5°C)	104th Coolest	Coolest since: 2012	1967
April 2015 1-Month	56.7°F (13.7°C)	54.0°F (12.2°C)	2.7°F (1.5°C)	26th Warmest	Warmest since: 2014	1989
Mar–Apr 2015 2-Month	56.8°F (13.8°C)	51.4°F (10.8°C)	5.4°F (3.0°C)	127th Coolest	Coolest since: 2014	1967
Mar–Apr 2015 2-Month	56.8°F (13.8°C)	51.4°F (10.8°C)	5.4°F (3.0°C)	3rd Warmest	Warmest since: 2004	1934
Feb–Apr 2015 3-Month	55.6°F (13.1°C)	49.4°F (9.7°C)	6.2°F (3.4°C)	129th Coolest	Coolest since: 2014	1922
Feb–Apr 2015 3-Month	55.6°F (13.1°C)	49.4°F (9.7°C)	6.2°F (3.4°C)	1st Warmest	Warmest to Date	2015
Jan–Apr 2015 4-Month	53.9°F (12.2°C)	47.6°F (8.7°C)	6.3°F (3.5°C)	129th Coolest	Coolest since: 2014	1922
Jan–Apr 2015 4-Month	53.9°F (12.2°C)	47.6°F (8.7°C)	6.3°F (3.5°C)	1st Warmest	Warmest to Date	2015
Dec 2014–Apr 2015 5-Month	52.4°F (11.3°C)	46.7°F (8.2°C)	5.7°F (3.1°C)	128th Coolest	Coolest since: 2014	1917, 1949
Dec 2014–Apr 2015 5-Month	52.4°F (11.3°C)	46.7°F (8.2°C)	5.7°F (3.1°C)	1st Warmest	Warmest to Date	2015
Nov 2014–Apr 2015 6-Month	52.6°F (11.4°C)	47.2°F (8.4°C)	5.4°F (3.0°C)	128th Coolest	Coolest since: 2014	1917
Nov 2014–Apr 2015 6-Month	52.6°F (11.4°C)	47.2°F (8.4°C)	5.4°F (3.0°C)	1st Warmest	Warmest to Date	2015
Oct 2014–Apr 2015 7-Month	54.2°F (12.3°C)	48.9°F (9.4°C)	5.3°F (2.9°C)	128th Coolest	Coolest since: 2014	1917
Oct 2014–Apr 2015 7-Month	54.2°F (12.3°C)	48.9°F (9.4°C)	5.3°F (2.9°C)	1st Warmest	Warmest to Date	2015
Sep 2014–Apr 2015 8-Month	56.5°F (13.6°C)	51.4°F (10.8°C)	5.1°F (2.8°C)	128th Coolest	Coolest since: 2014	1917
Sep 2014–Apr 2015 8-Month	56.5°F (13.6°C)	51.4°F (10.8°C)	5.1°F (2.8°C)	1st Warmest	Warmest to Date	2015
Aug 2014–Apr 2015 9-Month	58.5°F (14.7°C)	53.9°F (12.2°C)	4.6°F (2.5°C)	128th Coolest	Coolest since: 2014	1917
Aug 2014–Apr 2015 9-Month	58.5°F (14.7°C)	53.9°F (12.2°C)	4.6°F (2.5°C)	1st Warmest	Warmest to Date	2015
Jul 2014–Apr 2015 10-Month	60.5°F (15.8°C)	56.0°F (13.3°C)	4.5°F (2.5°C)	128th Coolest	Coolest since: 2014	1917
Jul 2014–Apr 2015 10-Month	60.5°F (15.8°C)	56.0°F (13.3°C)	4.5°F (2.5°C)	1st Warmest	Warmest to Date	2015
Jun 2014–Apr 2015 11-Month	61.6°F (16.4°C)	57.1°F (13.9°C)	4.5°F (2.5°C)	128th Coolest	Coolest since: 2014	1917
Jun 2014–Apr 2015 11-Month	61.6°F (16.4°C)	57.1°F (13.9°C)	4.5°F (2.5°C)	1st Warmest	Warmest to Date	2015
May 2014–Apr 2015 12-Month	61.8°F (16.6°C)	57.4°F (14.1°C)	4.4°F (2.5°C)	128th Coolest	Coolest since: 2014	1917
May 2014–Apr 2015 12-Month	61.8°F (16.6°C)	57.4°F (14.1°C)	4.4°F (2.5°C)	1st Warmest	Warmest to Date	2015
Nov 2013–Apr 2015 18-Month	58.3°F (14.6°C)	54.0°F (12.2°C)	4.3°F (2.4°C)	127th Coolest	Coolest since: 2014	1949
Nov 2013–Apr 2015 18-Month	58.3°F (14.6°C)	54.0°F (12.2°C)	4.3°F (2.4°C)	1st Warmest	Warmest to Date	2015
May 2013–Apr 2015 24-Month	61.1°F (16.2°C)	57.4°F (14.1°C)	3.7°F (2.1°C)	127th Coolest	Coolest since: 2014	1913
May 2013–Apr 2015 24-Month	61.1°F (16.2°C)	57.4°F (14.1°C)	3.7°F (2.1°C)	1st Warmest	Warmest to Date	2015
May 2012–Apr 2015 36-Month	60.6°F (15.9°C)	57.4°F (14.1°C)	3.2°F (1.8°C)	125th Coolest	Coolest since: 2014	1913, 1917
May 2012–Apr 2015 36-Month	60.6°F (15.9°C)	57.4°F (14.1°C)	3.2°F (1.8°C)	2nd Warmest	Warmest to Date	2016
May 2011–Apr 2015 48-Month	59.9°F (15.5°C)	57.4°F (14.1°C)	2.5°F (1.4°C)	122nd Coolest	Coolest since: 2014	1913
	59.9°F (15.5°C)	57.4°F (14.1°C)	2.5°F (1.4°C)	4th Warmest	Warmest to Date	2016, 2018
	Ties: 2019, 2021, 2022
May 2010–Apr 2015 60-Month	59.5°F (15.3°C)	57.3°F (14.1°C)	2.2°F (1.2°C)	116th Coolest	Coolest since: 2014	1913
May 2010–Apr 2015 60-Month	59.5°F (15.3°C)	57.3°F (14.1°C)	2.2°F (1.2°C)	9th 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 June 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings