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, October 1977

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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
October 1977 1-Month	0.50" (12.70mm)	1.20" (30.48mm)	-0.70" (-17.78mm)	31st Driest	Driest since: 1966	1917
	0.50" (12.70mm)	1.20" (30.48mm)	-0.70" (-17.78mm)	98th Wettest	Wettest since: 1976	1962
	Ties: 1903, 1919
Sep–Oct 1977 2-Month	1.37" (34.80mm)	1.65" (41.91mm)	-0.28" (-7.11mm)	56th Driest	Driest since: 1971	2020
Sep–Oct 1977 2-Month	1.37" (34.80mm)	1.65" (41.91mm)	-0.28" (-7.11mm)	73rd Wettest	Wettest since: 1976	1962
Aug–Oct 1977 3-Month	2.12" (53.85mm)	1.89" (48.01mm)	0.23" (5.84mm)	81st Driest	Driest since: 1974	1995, 2002
	2.12" (53.85mm)	1.89" (48.01mm)	0.23" (5.84mm)	48th Wettest	Wettest since: 1976	1962
	Ties: 1927, 2007
Jul–Oct 1977 4-Month	2.20" (55.88mm)	2.07" (52.58mm)	0.13" (3.30mm)	75th Driest	Driest since: 1974	2002, 2020
Jul–Oct 1977 4-Month	2.20" (55.88mm)	2.07" (52.58mm)	0.13" (3.30mm)	54th Wettest	Wettest since: 1976	1962
Jun–Oct 1977 5-Month	2.55" (64.77mm)	2.42" (61.47mm)	0.13" (3.30mm)	74th Driest	Driest since: 1974	2002
Jun–Oct 1977 5-Month	2.55" (64.77mm)	2.42" (61.47mm)	0.13" (3.30mm)	55th Wettest	Wettest since: 1976	1982
May–Oct 1977 6-Month	4.43" (112.52mm)	3.30" (83.82mm)	1.13" (28.70mm)	107th Driest	Driest since: 1976	2002
May–Oct 1977 6-Month	4.43" (112.52mm)	3.30" (83.82mm)	1.13" (28.70mm)	22nd Wettest	Wettest since: 1963	1957
Apr–Oct 1977 7-Month	4.66" (118.36mm)	4.93" (125.22mm)	-0.27" (-6.86mm)	67th Driest	Driest since: 1976	2002
	4.66" (118.36mm)	4.93" (125.22mm)	-0.27" (-6.86mm)	62nd Wettest	Wettest since: 1975	1963
	Ties: 1971
Mar–Oct 1977 8-Month	6.30" (160.02mm)	8.14" (206.76mm)	-1.84" (-46.74mm)	36th Driest	Driest since: 1976	2008
	6.30" (160.02mm)	8.14" (206.76mm)	-1.84" (-46.74mm)	93rd Wettest	Wettest since: 1975	1983
	Ties: 1924, 1960
Feb–Oct 1977 9-Month	7.46" (189.48mm)	11.99" (304.55mm)	-4.53" (-115.07mm)	14th Driest	Driest since: 1970	1966
Feb–Oct 1977 9-Month	7.46" (189.48mm)	11.99" (304.55mm)	-4.53" (-115.07mm)	115th Wettest	Wettest since: 1976	1998
Jan–Oct 1977 10-Month	9.44" (239.78mm)	16.24" (412.50mm)	-6.80" (-172.72mm)	11th Driest	Driest since: 1966	2022
	9.44" (239.78mm)	16.24" (412.50mm)	-6.80" (-172.72mm)	118th Wettest	Wettest since: 1976	1998
	Ties: 1924
Dec 1976–Oct 1977 11-Month	9.99" (253.75mm)	19.87" (504.70mm)	-9.88" (-250.95mm)	1st Driest	Driest to Date	1977
Dec 1976–Oct 1977 11-Month	9.99" (253.75mm)	19.87" (504.70mm)	-9.88" (-250.95mm)	127th Wettest	Wettest since: 1976	1983
Nov 1976–Oct 1977 12-Month	10.85" (275.59mm)	22.44" (569.98mm)	-11.59" (-294.39mm)	1st Driest	Driest to Date	1977
Nov 1976–Oct 1977 12-Month	10.85" (275.59mm)	22.44" (569.98mm)	-11.59" (-294.39mm)	127th Wettest	Wettest since: 1976	1983
May 1976–Oct 1977 18-Month	13.96" (354.58mm)	25.75" (654.05mm)	-11.79" (-299.47mm)	1st Driest	Driest to Date	1977
May 1976–Oct 1977 18-Month	13.96" (354.58mm)	25.75" (654.05mm)	-11.79" (-299.47mm)	127th Wettest	Wettest since: 1976	1983
Nov 1975–Oct 1977 24-Month	23.41" (594.61mm)	44.87" (1,139.70mm)	-21.46" (-545.09mm)	1st Driest	Driest to Date	1977
Nov 1975–Oct 1977 24-Month	23.41" (594.61mm)	44.87" (1,139.70mm)	-21.46" (-545.09mm)	126th Wettest	Wettest since: 1976	1983
Nov 1974–Oct 1977 36-Month	46.53" (1,181.86mm)	67.29" (1,709.17mm)	-20.76" (-527.31mm)	4th Driest	Driest to Date	2022
Nov 1974–Oct 1977 36-Month	46.53" (1,181.86mm)	67.29" (1,709.17mm)	-20.76" (-527.31mm)	122nd Wettest	Wettest since: 1976	1984
Nov 1973–Oct 1977 48-Month	74.12" (1,882.65mm)	89.47" (2,272.54mm)	-15.35" (-389.89mm)	16th Driest	Driest since: 1950	2015
Nov 1973–Oct 1977 48-Month	74.12" (1,882.65mm)	89.47" (2,272.54mm)	-15.35" (-389.89mm)	109th Wettest	Wettest since: 1976	1998
Nov 1972–Oct 1977 60-Month	99.61" (2,530.09mm)	111.65" (2,835.91mm)	-12.04" (-305.82mm)	27th Driest	Driest since: 1964	1991
Nov 1972–Oct 1977 60-Month	99.61" (2,530.09mm)	111.65" (2,835.91mm)	-12.04" (-305.82mm)	97th Wettest	Wettest since: 1976	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings