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 1991

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
August 1991 1-Month	0.20" (5.08mm)	0.24" (6.10mm)	-0.04" (-1.02mm)	66th Driest	Driest since: 1987	1937, 2002
	0.20" (5.08mm)	0.24" (6.10mm)	-0.04" (-1.02mm)	63rd Wettest	Wettest since: 1990	1983
	Ties: 1907, 1992
Jul–Aug 1991 2-Month	0.46" (11.68mm)	0.42" (10.67mm)	0.04" (1.01mm)	86th Driest	Driest since: 1989	1940
Jul–Aug 1991 2-Month	0.46" (11.68mm)	0.42" (10.67mm)	0.04" (1.01mm)	43rd Wettest	Wettest since: 1990	1983
Jun–Aug 1991 3-Month	0.78" (19.81mm)	0.77" (19.56mm)	0.01" (0.25mm)	74th Driest	Driest since: 1989	2002
	0.78" (19.81mm)	0.77" (19.56mm)	0.01" (0.25mm)	55th Wettest	Wettest since: 1990	1913
	Ties: 1944, 1963
May–Aug 1991 4-Month	1.60" (40.64mm)	1.65" (41.91mm)	-0.05" (-1.27mm)	76th Driest	Driest since: 1989	1924
May–Aug 1991 4-Month	1.60" (40.64mm)	1.65" (41.91mm)	-0.05" (-1.27mm)	53rd Wettest	Wettest since: 1990	1998
Apr–Aug 1991 5-Month	2.35" (59.69mm)	3.29" (83.57mm)	-0.94" (-23.88mm)	32nd Driest	Driest since: 1989	2021
Apr–Aug 1991 5-Month	2.35" (59.69mm)	3.29" (83.57mm)	-0.94" (-23.88mm)	97th Wettest	Wettest since: 1990	1896
Mar–Aug 1991 6-Month	11.46" (291.08mm)	6.50" (165.10mm)	4.96" (125.98mm)	123rd Driest	Driest since: 1990	2008
Mar–Aug 1991 6-Month	11.46" (291.08mm)	6.50" (165.10mm)	4.96" (125.98mm)	6th Wettest	Wettest since: 1983	1995
Feb–Aug 1991 7-Month	13.70" (347.98mm)	10.35" (262.89mm)	3.35" (85.09mm)	110th Driest	Driest since: 1990	1997, 2021
Feb–Aug 1991 7-Month	13.70" (347.98mm)	10.35" (262.89mm)	3.35" (85.09mm)	19th Wettest	Wettest since: 1986	1998
Jan–Aug 1991 8-Month	14.70" (373.38mm)	14.60" (370.84mm)	0.10" (2.54mm)	78th Driest	Driest since: 1990	2022
Jan–Aug 1991 8-Month	14.70" (373.38mm)	14.60" (370.84mm)	0.10" (2.54mm)	51st Wettest	Wettest since: 1986	1995
Dec 1990–Aug 1991 9-Month	15.61" (396.49mm)	18.22" (462.79mm)	-2.61" (-66.30mm)	57th Driest	Driest since: 1990	1924
Dec 1990–Aug 1991 9-Month	15.61" (396.49mm)	18.22" (462.79mm)	-2.61" (-66.30mm)	71st Wettest	Wettest since: 1986	1998
Nov 1990–Aug 1991 10-Month	16.32" (414.53mm)	20.80" (528.32mm)	-4.48" (-113.79mm)	40th Driest	Driest since: 1990	1924
Nov 1990–Aug 1991 10-Month	16.32" (414.53mm)	20.80" (528.32mm)	-4.48" (-113.79mm)	88th Wettest	Wettest since: 1989	1983
Oct 1990–Aug 1991 11-Month	16.79" (426.47mm)	22.00" (558.80mm)	-5.21" (-132.33mm)	34th Driest	Driest since: 1990	1924
Oct 1990–Aug 1991 11-Month	16.79" (426.47mm)	22.00" (558.80mm)	-5.21" (-132.33mm)	94th Wettest	Wettest since: 1989	1983
Sep 1990–Aug 1991 12-Month	17.20" (436.88mm)	22.44" (569.98mm)	-5.24" (-133.10mm)	33rd Driest	Driest since: 1990	2021
Sep 1990–Aug 1991 12-Month	17.20" (436.88mm)	22.44" (569.98mm)	-5.24" (-133.10mm)	95th Wettest	Wettest since: 1989	1983
Mar 1990–Aug 1991 18-Month	22.61" (574.29mm)	28.96" (735.58mm)	-6.35" (-161.29mm)	28th Driest	Driest since: 1987	1977
Mar 1990–Aug 1991 18-Month	22.61" (574.29mm)	28.96" (735.58mm)	-6.35" (-161.29mm)	100th Wettest	Wettest since: 1990	1983
Sep 1989–Aug 1991 24-Month	33.14" (841.76mm)	44.90" (1,140.46mm)	-11.76" (-298.70mm)	14th Driest	Driest since: 1977	1977
Sep 1989–Aug 1991 24-Month	33.14" (841.76mm)	44.90" (1,140.46mm)	-11.76" (-298.70mm)	113th Wettest	Wettest since: 1990	1983
Sep 1988–Aug 1991 36-Month	51.11" (1,298.19mm)	67.31" (1,709.67mm)	-16.20" (-411.48mm)	8th Driest	Driest since: 1977	2022
Sep 1988–Aug 1991 36-Month	51.11" (1,298.19mm)	67.31" (1,709.67mm)	-16.20" (-411.48mm)	118th Wettest	Wettest since: 1990	1984
Sep 1987–Aug 1991 48-Month	69.47" (1,764.54mm)	89.50" (2,273.30mm)	-20.03" (-508.76mm)	6th Driest	Driest since: 1990	2015
Sep 1987–Aug 1991 48-Month	69.47" (1,764.54mm)	89.50" (2,273.30mm)	-20.03" (-508.76mm)	119th Wettest	Wettest since: 1989	1998
Sep 1986–Aug 1991 60-Month	84.74" (2,152.40mm)	111.68" (2,836.67mm)	-26.94" (-684.27mm)	1st Driest	Driest since: 1991	1991
Sep 1986–Aug 1991 60-Month	84.74" (2,152.40mm)	111.68" (2,836.67mm)	-26.94" (-684.27mm)	123rd Wettest	Wettest since: 1990	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings