Statewide Rankings

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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, August 2018

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Record Driest

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
August 2018 1-Month	0.04" (1.02mm)	0.24" (6.10mm)	-0.20" (-5.08mm)	10th Driest	Driest since: 2002	1937, 2002
	0.04" (1.02mm)	0.24" (6.10mm)	-0.20" (-5.08mm)	119th Wettest	Wettest since: 2017	1983
	Ties: 1980, 1987
Jul–Aug 2018 2-Month	0.26" (6.60mm)	0.42" (10.67mm)	-0.16" (-4.07mm)	33rd Driest	Driest since: 2016	1940
	0.26" (6.60mm)	0.42" (10.67mm)	-0.16" (-4.07mm)	96th Wettest	Wettest since: 2017	1983
	Ties: 1996, 2008
Jun–Aug 2018 3-Month	0.33" (8.38mm)	0.77" (19.56mm)	-0.44" (-11.18mm)	16th Driest	Driest since: 2008	2002
	0.33" (8.38mm)	0.77" (19.56mm)	-0.44" (-11.18mm)	113th Wettest	Wettest since: 2017	1913
	Ties: 2004
May–Aug 2018 4-Month	0.99" (25.15mm)	1.65" (41.91mm)	-0.66" (-16.76mm)	22nd Driest	Driest since: 2008	1924
May–Aug 2018 4-Month	0.99" (25.15mm)	1.65" (41.91mm)	-0.66" (-16.76mm)	107th Wettest	Wettest since: 2017	1998
Apr–Aug 2018 5-Month	3.12" (79.25mm)	3.28" (83.31mm)	-0.16" (-4.06mm)	71st Driest	Driest since: 2016	2021
Apr–Aug 2018 5-Month	3.12" (79.25mm)	3.28" (83.31mm)	-0.16" (-4.06mm)	58th Wettest	Wettest since: 2017	1896
Mar–Aug 2018 6-Month	8.24" (209.30mm)	6.50" (165.10mm)	1.74" (44.20mm)	103rd Driest	Driest since: 2017	2008
Mar–Aug 2018 6-Month	8.24" (209.30mm)	6.50" (165.10mm)	1.74" (44.20mm)	26th Wettest	Wettest since: 2012	1995
Feb–Aug 2018 7-Month	8.81" (223.77mm)	10.35" (262.89mm)	-1.54" (-39.12mm)	58th Driest	Driest since: 2016	1997, 2021
Feb–Aug 2018 7-Month	8.81" (223.77mm)	10.35" (262.89mm)	-1.54" (-39.12mm)	71st Wettest	Wettest since: 2017	1998
Jan–Aug 2018 8-Month	12.14" (308.36mm)	14.60" (370.84mm)	-2.46" (-62.48mm)	51st Driest	Driest since: 2015	2022
Jan–Aug 2018 8-Month	12.14" (308.36mm)	14.60" (370.84mm)	-2.46" (-62.48mm)	78th Wettest	Wettest since: 2017	1995
Dec 2017–Aug 2018 9-Month	12.44" (315.98mm)	18.22" (462.79mm)	-5.78" (-146.81mm)	18th Driest	Driest since: 2014	1924
	12.44" (315.98mm)	18.22" (462.79mm)	-5.78" (-146.81mm)	110th Wettest	Wettest since: 2017	1998
	Ties: 2002
Nov 2017–Aug 2018 10-Month	15.42" (391.67mm)	20.80" (528.32mm)	-5.38" (-136.65mm)	26th Driest	Driest since: 2015	1924
Nov 2017–Aug 2018 10-Month	15.42" (391.67mm)	20.80" (528.32mm)	-5.38" (-136.65mm)	102nd Wettest	Wettest since: 2017	1983
Oct 2017–Aug 2018 11-Month	15.76" (400.30mm)	22.00" (558.80mm)	-6.24" (-158.50mm)	20th Driest	Driest since: 2014	1924
Oct 2017–Aug 2018 11-Month	15.76" (400.30mm)	22.00" (558.80mm)	-6.24" (-158.50mm)	108th Wettest	Wettest since: 2017	1983
Sep 2017–Aug 2018 12-Month	16.19" (411.23mm)	22.44" (569.98mm)	-6.25" (-158.75mm)	20th Driest	Driest since: 2014	2021
Sep 2017–Aug 2018 12-Month	16.19" (411.23mm)	22.44" (569.98mm)	-6.25" (-158.75mm)	108th Wettest	Wettest since: 2017	1983
Mar 2017–Aug 2018 18-Month	22.45" (570.23mm)	28.96" (735.58mm)	-6.51" (-165.35mm)	23rd Driest	Driest since: 2014	1977
Mar 2017–Aug 2018 18-Month	22.45" (570.23mm)	28.96" (735.58mm)	-6.51" (-165.35mm)	105th Wettest	Wettest since: 2017	1983
Sep 2016–Aug 2018 24-Month	50.88" (1,292.35mm)	44.90" (1,140.46mm)	5.98" (151.89mm)	102nd Driest	Driest since: 2016	1977
Sep 2016–Aug 2018 24-Month	50.88" (1,292.35mm)	44.90" (1,140.46mm)	5.98" (151.89mm)	25th Wettest	Wettest since: 2017	1983
Sep 2015–Aug 2018 36-Month	73.83" (1,875.28mm)	67.31" (1,709.67mm)	6.52" (165.61mm)	94th Driest	Driest since: 2016	2022
	73.83" (1,875.28mm)	67.31" (1,709.67mm)	6.52" (165.61mm)	32nd Wettest	Wettest since: 2017	1984
	Ties: 1954
Sep 2014–Aug 2018 48-Month	91.00" (2,311.40mm)	89.50" (2,273.30mm)	1.50" (38.10mm)	75th Driest	Driest since: 2017	2015
Sep 2014–Aug 2018 48-Month	91.00" (2,311.40mm)	89.50" (2,273.30mm)	1.50" (38.10mm)	50th Wettest	Wettest since: 2007	1998
Sep 2013–Aug 2018 60-Month	103.44" (2,627.38mm)	111.68" (2,836.67mm)	-8.24" (-209.29mm)	43rd Driest	Driest since: 2016	1991
Sep 2013–Aug 2018 60-Month	103.44" (2,627.38mm)	111.68" (2,836.67mm)	-8.24" (-209.29mm)	81st 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 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings