Statewide Rankings

Parameter:

Year:

Month:

State:

Please note, Degree Days and Palmer Indices are not available for Alaska. 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

Precipitation Rankings, September 2018

View Period (Months):

All

Download:

Record Driest

Bottom 1/10

Bottom 1/3

Normal

Top 1/3

Top 1/10

Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
September 2018 1-Month	0.06" (1.52mm)	0.45" (11.43mm)	-0.39" (-9.91mm)	9th Driest	Driest since: 2008	1974
	0.06" (1.52mm)	0.45" (11.43mm)	-0.39" (-9.91mm)	120th Wettest	Wettest since: 2017	1918
	Ties: 2006
Aug–Sep 2018 2-Month	0.10" (2.54mm)	0.69" (17.53mm)	-0.59" (-14.99mm)	1st Driest	Driest since: 1937	1937, 2018
	0.10" (2.54mm)	0.69" (17.53mm)	-0.59" (-14.99mm)	128th Wettest	Wettest since: 2017	1983
	Ties: 1937
Jul–Sep 2018 3-Month	0.32" (8.13mm)	0.87" (22.10mm)	-0.55" (-13.97mm)	13th Driest	Driest since: 2016	1928
	0.32" (8.13mm)	0.87" (22.10mm)	-0.55" (-13.97mm)	116th Wettest	Wettest since: 2017	1976
	Ties: 1924, 1943
Jun–Sep 2018 4-Month	0.39" (9.91mm)	1.22" (30.99mm)	-0.83" (-21.08mm)	6th Driest	Driest since: 2008	2002
Jun–Sep 2018 4-Month	0.39" (9.91mm)	1.22" (30.99mm)	-0.83" (-21.08mm)	123rd Wettest	Wettest since: 2017	1982
May–Sep 2018 5-Month	1.05" (26.67mm)	2.10" (53.34mm)	-1.05" (-26.67mm)	11th Driest	Driest since: 2008	1924
May–Sep 2018 5-Month	1.05" (26.67mm)	2.10" (53.34mm)	-1.05" (-26.67mm)	118th Wettest	Wettest since: 2017	1998
Apr–Sep 2018 6-Month	3.18" (80.77mm)	3.74" (95.00mm)	-0.56" (-14.23mm)	51st Driest	Driest since: 2016	1924
	3.18" (80.77mm)	3.74" (95.00mm)	-0.56" (-14.23mm)	78th Wettest	Wettest since: 2017	1896
	Ties: 1939
Mar–Sep 2018 7-Month	8.30" (210.82mm)	6.95" (176.53mm)	1.35" (34.29mm)	97th Driest	Driest since: 2017	2008
Mar–Sep 2018 7-Month	8.30" (210.82mm)	6.95" (176.53mm)	1.35" (34.29mm)	32nd Wettest	Wettest since: 2012	1995
Feb–Sep 2018 8-Month	8.87" (225.30mm)	10.80" (274.32mm)	-1.93" (-49.02mm)	52nd Driest	Driest since: 2016	2021
	8.87" (225.30mm)	10.80" (274.32mm)	-1.93" (-49.02mm)	77th Wettest	Wettest since: 2017	1998
	Ties: 1903, 2016
Jan–Sep 2018 9-Month	12.20" (309.88mm)	15.05" (382.27mm)	-2.85" (-72.39mm)	49th Driest	Driest since: 2015	2022
Jan–Sep 2018 9-Month	12.20" (309.88mm)	15.05" (382.27mm)	-2.85" (-72.39mm)	80th Wettest	Wettest since: 2017	1998
Dec 2017–Sep 2018 10-Month	12.50" (317.50mm)	18.67" (474.22mm)	-6.17" (-156.72mm)	17th Driest	Driest since: 2014	1924
Dec 2017–Sep 2018 10-Month	12.50" (317.50mm)	18.67" (474.22mm)	-6.17" (-156.72mm)	111th Wettest	Wettest since: 2017	1983
Nov 2017–Sep 2018 11-Month	15.48" (393.19mm)	21.25" (539.75mm)	-5.77" (-146.56mm)	21st Driest	Driest since: 2014	1924
	15.48" (393.19mm)	21.25" (539.75mm)	-5.77" (-146.56mm)	107th Wettest	Wettest since: 2017	1983
	Ties: 2020
Oct 2017–Sep 2018 12-Month	15.82" (401.83mm)	22.45" (570.23mm)	-6.63" (-168.40mm)	16th Driest	Driest since: 2014	1924
Oct 2017–Sep 2018 12-Month	15.82" (401.83mm)	22.45" (570.23mm)	-6.63" (-168.40mm)	112th Wettest	Wettest since: 2017	1983
Apr 2017–Sep 2018 18-Month	20.06" (509.52mm)	26.19" (665.23mm)	-6.13" (-155.71mm)	26th Driest	Driest since: 2015	2021
Apr 2017–Sep 2018 18-Month	20.06" (509.52mm)	26.19" (665.23mm)	-6.13" (-155.71mm)	102nd Wettest	Wettest since: 2017	1983
Oct 2016–Sep 2018 24-Month	50.84" (1,291.34mm)	44.90" (1,140.46mm)	5.94" (150.88mm)	100th Driest	Driest since: 2016	1977
Oct 2016–Sep 2018 24-Month	50.84" (1,291.34mm)	44.90" (1,140.46mm)	5.94" (150.88mm)	27th Wettest	Wettest since: 2017	1983
Oct 2015–Sep 2018 36-Month	73.56" (1,868.42mm)	67.32" (1,709.93mm)	6.24" (158.49mm)	92nd Driest	Driest since: 2016	2022
Oct 2015–Sep 2018 36-Month	73.56" (1,868.42mm)	67.32" (1,709.93mm)	6.24" (158.49mm)	34th Wettest	Wettest since: 2017	1984
Oct 2014–Sep 2018 48-Month	90.34" (2,294.64mm)	89.51" (2,273.55mm)	0.83" (21.09mm)	74th Driest	Driest since: 2017	2015
Oct 2014–Sep 2018 48-Month	90.34" (2,294.64mm)	89.51" (2,273.55mm)	0.83" (21.09mm)	51st Wettest	Wettest since: 2007	1998
Oct 2013–Sep 2018 60-Month	102.73" (2,609.34mm)	111.69" (2,836.93mm)	-8.96" (-227.59mm)	41st Driest	Driest since: 2016	1991
Oct 2013–Sep 2018 60-Month	102.73" (2,609.34mm)	111.69" (2,836.93mm)	-8.96" (-227.59mm)	83rd Wettest	Wettest since: 2017	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings