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 1951

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
August 1951 1-Month	0.35" (8.89mm)	0.24" (6.10mm)	0.11" (2.79mm)	104th Driest	Driest since: 1950	1937, 2002
	0.35" (8.89mm)	0.24" (6.10mm)	0.11" (2.79mm)	25th Wettest	Wettest since: 1945	1983
	Ties: 1922, 1925, 1935, 1955
Jul–Aug 1951 2-Month	0.50" (12.70mm)	0.42" (10.67mm)	0.08" (2.03mm)	90th Driest	Driest since: 1950	1940
	0.50" (12.70mm)	0.42" (10.67mm)	0.08" (2.03mm)	39th Wettest	Wettest since: 1946	1983
	Ties: 1975, 1988
Jun–Aug 1951 3-Month	0.57" (14.48mm)	0.77" (19.56mm)	-0.20" (-5.08mm)	48th Driest	Driest since: 1949	2002
	0.57" (14.48mm)	0.77" (19.56mm)	-0.20" (-5.08mm)	81st Wettest	Wettest since: 1950	1913
	Ties: 1980
May–Aug 1951 4-Month	1.59" (40.39mm)	1.65" (41.91mm)	-0.06" (-1.52mm)	75th Driest	Driest since: 1950	1924
	1.59" (40.39mm)	1.65" (41.91mm)	-0.06" (-1.52mm)	54th Wettest	Wettest since: 1949	1998
	Ties: 1952
Apr–Aug 1951 5-Month	3.19" (81.03mm)	3.29" (83.57mm)	-0.10" (-2.54mm)	74th Driest	Driest since: 1950	2021
Apr–Aug 1951 5-Month	3.19" (81.03mm)	3.29" (83.57mm)	-0.10" (-2.54mm)	55th Wettest	Wettest since: 1948	1896
Mar–Aug 1951 6-Month	4.36" (110.74mm)	6.50" (165.10mm)	-2.14" (-54.36mm)	27th Driest	Driest since: 1946	2008
	4.36" (110.74mm)	6.50" (165.10mm)	-2.14" (-54.36mm)	102nd Wettest	Wettest since: 1950	1995
	Ties: 1969
Feb–Aug 1951 7-Month	6.90" (175.26mm)	10.35" (262.89mm)	-3.45" (-87.63mm)	23rd Driest	Driest since: 1946	1997, 2021
	6.90" (175.26mm)	10.35" (262.89mm)	-3.45" (-87.63mm)	106th Wettest	Wettest since: 1950	1998
	Ties: 2020
Jan–Aug 1951 8-Month	10.99" (279.15mm)	14.60" (370.84mm)	-3.61" (-91.69mm)	37th Driest	Driest since: 1947	2022
Jan–Aug 1951 8-Month	10.99" (279.15mm)	14.60" (370.84mm)	-3.61" (-91.69mm)	92nd Wettest	Wettest since: 1950	1995
Dec 1950–Aug 1951 9-Month	15.20" (386.08mm)	18.22" (462.79mm)	-3.02" (-76.71mm)	51st Driest	Driest since: 1949	1924
Dec 1950–Aug 1951 9-Month	15.20" (386.08mm)	18.22" (462.79mm)	-3.02" (-76.71mm)	77th Wettest	Wettest since: 1950	1998
Nov 1950–Aug 1951 10-Month	19.44" (493.78mm)	20.80" (528.32mm)	-1.36" (-34.54mm)	62nd Driest	Driest since: 1950	1924
Nov 1950–Aug 1951 10-Month	19.44" (493.78mm)	20.80" (528.32mm)	-1.36" (-34.54mm)	66th Wettest	Wettest since: 1945	1983
Oct 1950–Aug 1951 11-Month	22.85" (580.39mm)	22.00" (558.80mm)	0.85" (21.59mm)	76th Driest	Driest since: 1950	1924
Oct 1950–Aug 1951 11-Month	22.85" (580.39mm)	22.00" (558.80mm)	0.85" (21.59mm)	52nd Wettest	Wettest since: 1943	1983
Sep 1950–Aug 1951 12-Month	23.36" (593.34mm)	22.44" (569.98mm)	0.92" (23.36mm)	79th Driest	Driest since: 1950	2021
Sep 1950–Aug 1951 12-Month	23.36" (593.34mm)	22.44" (569.98mm)	0.92" (23.36mm)	49th Wettest	Wettest since: 1943	1983
Mar 1950–Aug 1951 18-Month	28.83" (732.28mm)	28.96" (735.58mm)	-0.13" (-3.30mm)	75th Driest	Driest since: 1950	1977
Mar 1950–Aug 1951 18-Month	28.83" (732.28mm)	28.96" (735.58mm)	-0.13" (-3.30mm)	53rd Wettest	Wettest since: 1943	1983
Sep 1949–Aug 1951 24-Month	40.96" (1,040.38mm)	44.90" (1,140.46mm)	-3.94" (-100.08mm)	46th Driest	Driest since: 1950	1977
Sep 1949–Aug 1951 24-Month	40.96" (1,040.38mm)	44.90" (1,140.46mm)	-3.94" (-100.08mm)	81st Wettest	Wettest since: 1946	1983
Sep 1948–Aug 1951 36-Month	58.26" (1,479.80mm)	67.31" (1,709.67mm)	-9.05" (-229.87mm)	32nd Driest	Driest since: 1950	2022
Sep 1948–Aug 1951 36-Month	58.26" (1,479.80mm)	67.31" (1,709.67mm)	-9.05" (-229.87mm)	94th Wettest	Wettest since: 1947	1984
Sep 1947–Aug 1951 48-Month	77.47" (1,967.74mm)	89.50" (2,273.30mm)	-12.03" (-305.56mm)	24th Driest	Driest since: 1950	2015
Sep 1947–Aug 1951 48-Month	77.47" (1,967.74mm)	89.50" (2,273.30mm)	-12.03" (-305.56mm)	101st Wettest	Wettest since: 1948	1998
Sep 1946–Aug 1951 60-Month	94.12" (2,390.65mm)	111.68" (2,836.67mm)	-17.56" (-446.02mm)	11th Driest	Driest since: 1950	1991
Sep 1946–Aug 1951 60-Month	94.12" (2,390.65mm)	111.68" (2,836.67mm)	-17.56" (-446.02mm)	113th Wettest	Wettest since: 1949	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published February 2023, retrieved on February 9, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings