Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Northwest Climate Region

Precipitation Rankings, January 1980

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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
January 1980 1-Month	4.99" (126.75mm)	4.53" (115.06mm)	0.46" (11.69mm)	81st Driest	Driest since: 1979	1985
	4.99" (126.75mm)	4.53" (115.06mm)	0.46" (11.69mm)	48th Wettest	Wettest since: 1975	1953
	Ties: 1919
Dec 1979–Jan 1980 2-Month	9.76" (247.90mm)	9.17" (232.92mm)	0.59" (14.98mm)	80th Driest	Driest since: 1979	1977
Dec 1979–Jan 1980 2-Month	9.76" (247.90mm)	9.17" (232.92mm)	0.59" (14.98mm)	48th Wettest	Wettest since: 1978	1965
Nov 1979–Jan 1980 3-Month	12.54" (318.52mm)	13.53" (343.66mm)	-0.99" (-25.14mm)	50th Driest	Driest since: 1979	1977
Nov 1979–Jan 1980 3-Month	12.54" (318.52mm)	13.53" (343.66mm)	-0.99" (-25.14mm)	78th Wettest	Wettest since: 1978	1974
Oct 1979–Jan 1980 4-Month	16.19" (411.23mm)	16.08" (408.43mm)	0.11" (2.80mm)	65th Driest	Driest since: 1979	1977
	16.19" (411.23mm)	16.08" (408.43mm)	0.11" (2.80mm)	63rd Wettest	Wettest since: 1978	1997
	Ties: 2000
Sep 1979–Jan 1980 5-Month	17.20" (436.88mm)	17.50" (444.50mm)	-0.30" (-7.62mm)	58th Driest	Driest since: 1979	1977
Sep 1979–Jan 1980 5-Month	17.20" (436.88mm)	17.50" (444.50mm)	-0.30" (-7.62mm)	70th Wettest	Wettest since: 1978	1974
Aug 1979–Jan 1980 6-Month	18.73" (475.74mm)	18.31" (465.07mm)	0.42" (10.67mm)	69th Driest	Driest since: 1979	1977
Aug 1979–Jan 1980 6-Month	18.73" (475.74mm)	18.31" (465.07mm)	0.42" (10.67mm)	59th Wettest	Wettest since: 1978	1974
Jul 1979–Jan 1980 7-Month	19.34" (491.24mm)	19.04" (483.62mm)	0.30" (7.62mm)	71st Driest	Driest since: 1979	1977
Jul 1979–Jan 1980 7-Month	19.34" (491.24mm)	19.04" (483.62mm)	0.30" (7.62mm)	57th Wettest	Wettest since: 1978	1956
Jun 1979–Jan 1980 8-Month	20.19" (512.83mm)	20.76" (527.30mm)	-0.57" (-14.47mm)	62nd Driest	Driest since: 1979	1977
Jun 1979–Jan 1980 8-Month	20.19" (512.83mm)	20.76" (527.30mm)	-0.57" (-14.47mm)	66th Wettest	Wettest since: 1978	1956
May 1979–Jan 1980 9-Month	22.00" (558.80mm)	22.91" (581.91mm)	-0.91" (-23.11mm)	58th Driest	Driest since: 1979	1977
	22.00" (558.80mm)	22.91" (581.91mm)	-0.91" (-23.11mm)	70th Wettest	Wettest since: 1978	1997
	Ties: 1923
Apr 1979–Jan 1980 10-Month	24.58" (624.33mm)	25.27" (641.86mm)	-0.69" (-17.53mm)	63rd Driest	Driest since: 1979	1977
	24.58" (624.33mm)	25.27" (641.86mm)	-0.69" (-17.53mm)	65th Wettest	Wettest since: 1978	1997
	Ties: 1989
Mar 1979–Jan 1980 11-Month	26.84" (681.74mm)	28.53" (724.66mm)	-1.69" (-42.92mm)	43rd Driest	Driest since: 1979	1977
Mar 1979–Jan 1980 11-Month	26.84" (681.74mm)	28.53" (724.66mm)	-1.69" (-42.92mm)	85th Wettest	Wettest since: 1978	1997
Feb 1979–Jan 1980 12-Month	32.14" (816.36mm)	32.13" (816.10mm)	0.01" (0.26mm)	65th Driest	Driest since: 1979	1977
	32.14" (816.36mm)	32.13" (816.10mm)	0.01" (0.26mm)	63rd Wettest	Wettest since: 1978	1997
	Ties: 2020
Aug 1978–Jan 1980 18-Month	45.61" (1,158.49mm)	50.47" (1,281.94mm)	-4.86" (-123.45mm)	22nd Driest	Driest since: 1978	1930
Aug 1978–Jan 1980 18-Month	45.61" (1,158.49mm)	50.47" (1,281.94mm)	-4.86" (-123.45mm)	105th Wettest	Wettest since: 1979	1997
Feb 1978–Jan 1980 24-Month	59.56" (1,512.82mm)	64.28" (1,632.71mm)	-4.72" (-119.89mm)	32nd Driest	Driest since: 1978	1931
Feb 1978–Jan 1980 24-Month	59.56" (1,512.82mm)	64.28" (1,632.71mm)	-4.72" (-119.89mm)	95th Wettest	Wettest since: 1979	1997
Feb 1977–Jan 1980 36-Month	94.13" (2,390.90mm)	96.31" (2,446.27mm)	-2.18" (-55.37mm)	51st Driest	Driest since: 1979	1931
Feb 1977–Jan 1980 36-Month	94.13" (2,390.90mm)	96.31" (2,446.27mm)	-2.18" (-55.37mm)	75th Wettest	Wettest since: 1976	1998
Feb 1976–Jan 1980 48-Month	115.71" (2,939.03mm)	128.35" (3,260.09mm)	-12.64" (-321.06mm)	11th Driest	Driest since: 1937	1932
Feb 1976–Jan 1980 48-Month	115.71" (2,939.03mm)	128.35" (3,260.09mm)	-12.64" (-321.06mm)	114th Wettest	Wettest since: 1979	1999
Feb 1975–Jan 1980 60-Month	152.63" (3,876.80mm)	160.30" (4,071.62mm)	-7.67" (-194.82mm)	28th Driest	Driest since: 1979	1933
Feb 1975–Jan 1980 60-Month	152.63" (3,876.80mm)	160.30" (4,071.62mm)	-7.67" (-194.82mm)	96th Wettest	Wettest since: 1978	2000

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings