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 1978

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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 1978 1-Month	0.22" (5.59mm)	0.24" (6.10mm)	-0.02" (-0.51mm)	74th Driest	Driest since: 1974	1937, 2002
	0.22" (5.59mm)	0.24" (6.10mm)	-0.02" (-0.51mm)	55th Wettest	Wettest since: 1977	1983
	Ties: 1899, 1917, 1959, 1993
Jul–Aug 1978 2-Month	0.34" (8.64mm)	0.42" (10.67mm)	-0.08" (-2.03mm)	67th Driest	Driest since: 1973	1940
	0.34" (8.64mm)	0.42" (10.67mm)	-0.08" (-2.03mm)	62nd Wettest	Wettest since: 1977	1983
	Ties: 1901, 1986
Jun–Aug 1978 3-Month	0.51" (12.95mm)	0.77" (19.56mm)	-0.26" (-6.61mm)	42nd Driest	Driest since: 1973	2002
Jun–Aug 1978 3-Month	0.51" (12.95mm)	0.77" (19.56mm)	-0.26" (-6.61mm)	87th Wettest	Wettest since: 1977	1913
May–Aug 1978 4-Month	0.89" (22.61mm)	1.65" (41.91mm)	-0.76" (-19.30mm)	18th Driest	Driest since: 1974	1924
	0.89" (22.61mm)	1.65" (41.91mm)	-0.76" (-19.30mm)	111th Wettest	Wettest since: 1977	1998
	Ties: 1974
Apr–Aug 1978 5-Month	4.37" (111.00mm)	3.29" (83.57mm)	1.08" (27.43mm)	101st Driest	Driest since: 1977	2021
Apr–Aug 1978 5-Month	4.37" (111.00mm)	3.29" (83.57mm)	1.08" (27.43mm)	28th Wettest	Wettest since: 1967	1896
Mar–Aug 1978 6-Month	10.12" (257.05mm)	6.50" (165.10mm)	3.62" (91.95mm)	113th Driest	Driest since: 1977	2008
Mar–Aug 1978 6-Month	10.12" (257.05mm)	6.50" (165.10mm)	3.62" (91.95mm)	16th Wettest	Wettest since: 1967	1995
Feb–Aug 1978 7-Month	15.89" (403.61mm)	10.35" (262.89mm)	5.54" (140.72mm)	118th Driest	Driest since: 1977	1997, 2021
Feb–Aug 1978 7-Month	15.89" (403.61mm)	10.35" (262.89mm)	5.54" (140.72mm)	11th Wettest	Wettest since: 1958	1998
Jan–Aug 1978 8-Month	23.86" (606.04mm)	14.60" (370.84mm)	9.26" (235.20mm)	122nd Driest	Driest since: 1977	2022
Jan–Aug 1978 8-Month	23.86" (606.04mm)	14.60" (370.84mm)	9.26" (235.20mm)	7th Wettest	Wettest since: 1958	1995
Dec 1977–Aug 1978 9-Month	29.77" (756.16mm)	18.22" (462.79mm)	11.55" (293.37mm)	123rd Driest	Driest since: 1977	1924
Dec 1977–Aug 1978 9-Month	29.77" (756.16mm)	18.22" (462.79mm)	11.55" (293.37mm)	5th Wettest	Wettest since: 1941	1998
Nov 1977–Aug 1978 10-Month	31.95" (811.53mm)	20.80" (528.32mm)	11.15" (283.21mm)	122nd Driest	Driest since: 1977	1924
Nov 1977–Aug 1978 10-Month	31.95" (811.53mm)	20.80" (528.32mm)	11.15" (283.21mm)	6th Wettest	Wettest since: 1941	1983
Oct 1977–Aug 1978 11-Month	32.45" (824.23mm)	22.00" (558.80mm)	10.45" (265.43mm)	120th Driest	Driest since: 1977	1924
Oct 1977–Aug 1978 11-Month	32.45" (824.23mm)	22.00" (558.80mm)	10.45" (265.43mm)	8th Wettest	Wettest since: 1958	1983
Sep 1977–Aug 1978 12-Month	33.32" (846.33mm)	22.44" (569.98mm)	10.88" (276.35mm)	120th Driest	Driest since: 1977	2021
Sep 1977–Aug 1978 12-Month	33.32" (846.33mm)	22.44" (569.98mm)	10.88" (276.35mm)	8th Wettest	Wettest since: 1958	1983
Mar 1977–Aug 1978 18-Month	38.25" (971.55mm)	28.96" (735.58mm)	9.29" (235.97mm)	117th Driest	Driest since: 1977	1977
Mar 1977–Aug 1978 18-Month	38.25" (971.55mm)	28.96" (735.58mm)	9.29" (235.97mm)	11th Wettest	Wettest since: 1958	1983
Sep 1976–Aug 1978 24-Month	44.62" (1,133.35mm)	44.90" (1,140.46mm)	-0.28" (-7.11mm)	67th Driest	Driest since: 1977	1977
Sep 1976–Aug 1978 24-Month	44.62" (1,133.35mm)	44.90" (1,140.46mm)	-0.28" (-7.11mm)	60th Wettest	Wettest since: 1975	1983
Sep 1975–Aug 1978 36-Month	58.31" (1,481.07mm)	67.31" (1,709.67mm)	-9.00" (-228.60mm)	33rd Driest	Driest since: 1977	2022
Sep 1975–Aug 1978 36-Month	58.31" (1,481.07mm)	67.31" (1,709.67mm)	-9.00" (-228.60mm)	93rd Wettest	Wettest since: 1976	1984
Sep 1974–Aug 1978 48-Month	80.04" (2,033.02mm)	89.50" (2,273.30mm)	-9.46" (-240.28mm)	39th Driest	Driest since: 1977	2015
	80.04" (2,033.02mm)	89.50" (2,273.30mm)	-9.46" (-240.28mm)	86th Wettest	Wettest since: 1976	1998
	Ties: 1929
Sep 1973–Aug 1978 60-Month	108.51" (2,756.15mm)	111.68" (2,836.67mm)	-3.17" (-80.52mm)	63rd Driest	Driest since: 1977	1991
Sep 1973–Aug 1978 60-Month	108.51" (2,756.15mm)	111.68" (2,836.67mm)	-3.17" (-80.52mm)	61st Wettest	Wettest since: 1975	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings