Regional Rankings

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Month:

Region:

Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 1991

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Record Driest
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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Wettest/Driest Since	Record
January 1991 1-Month	2.84" (72.14mm)	4.53" (115.06mm)	-1.69" (-42.92mm)	21st Driest	Driest since: 1985	1985
	2.84" (72.14mm)	4.53" (115.06mm)	-1.69" (-42.92mm)	109th Wettest	Wettest since: 1990	1953
	Ties: 1908
Dec 1990–Jan 1991 2-Month	5.97" (151.64mm)	9.17" (232.92mm)	-3.20" (-81.28mm)	12th Driest	Driest since: 1985	1977
Dec 1990–Jan 1991 2-Month	5.97" (151.64mm)	9.17" (232.92mm)	-3.20" (-81.28mm)	117th Wettest	Wettest since: 1990	1965
Nov 1990–Jan 1991 3-Month	10.82" (274.83mm)	13.53" (343.66mm)	-2.71" (-68.83mm)	27th Driest	Driest since: 1986	1977
Nov 1990–Jan 1991 3-Month	10.82" (274.83mm)	13.53" (343.66mm)	-2.71" (-68.83mm)	102nd Wettest	Wettest since: 1990	1974
Oct 1990–Jan 1991 4-Month	14.43" (366.52mm)	16.08" (408.43mm)	-1.65" (-41.91mm)	44th Driest	Driest since: 1990	1977
Oct 1990–Jan 1991 4-Month	14.43" (366.52mm)	16.08" (408.43mm)	-1.65" (-41.91mm)	85th Wettest	Wettest since: 1989	1997
Sep 1990–Jan 1991 5-Month	14.72" (373.89mm)	17.50" (444.50mm)	-2.78" (-70.61mm)	28th Driest	Driest since: 1990	1977
Sep 1990–Jan 1991 5-Month	14.72" (373.89mm)	17.50" (444.50mm)	-2.78" (-70.61mm)	101st Wettest	Wettest since: 1989	1974
Aug 1990–Jan 1991 6-Month	16.23" (412.24mm)	18.31" (465.07mm)	-2.08" (-52.83mm)	36th Driest	Driest since: 1990	1977
Aug 1990–Jan 1991 6-Month	16.23" (412.24mm)	18.31" (465.07mm)	-2.08" (-52.83mm)	93rd Wettest	Wettest since: 1989	1974
Jul 1990–Jan 1991 7-Month	16.92" (429.77mm)	19.04" (483.62mm)	-2.12" (-53.85mm)	40th Driest	Driest since: 1990	1977
Jul 1990–Jan 1991 7-Month	16.92" (429.77mm)	19.04" (483.62mm)	-2.12" (-53.85mm)	89th Wettest	Wettest since: 1989	1956
Jun 1990–Jan 1991 8-Month	18.67" (474.22mm)	20.76" (527.30mm)	-2.09" (-53.08mm)	39th Driest	Driest since: 1990	1977
Jun 1990–Jan 1991 8-Month	18.67" (474.22mm)	20.76" (527.30mm)	-2.09" (-53.08mm)	90th Wettest	Wettest since: 1989	1956
May 1990–Jan 1991 9-Month	21.72" (551.69mm)	22.91" (581.91mm)	-1.19" (-30.22mm)	52nd Driest	Driest since: 1990	1977
May 1990–Jan 1991 9-Month	21.72" (551.69mm)	22.91" (581.91mm)	-1.19" (-30.22mm)	77th Wettest	Wettest since: 1985	1997
Apr 1990–Jan 1991 10-Month	24.36" (618.74mm)	25.27" (641.86mm)	-0.91" (-23.12mm)	56th Driest	Driest since: 1990	1977
Apr 1990–Jan 1991 10-Month	24.36" (618.74mm)	25.27" (641.86mm)	-0.91" (-23.12mm)	73rd Wettest	Wettest since: 1989	1997
Mar 1990–Jan 1991 11-Month	26.52" (673.61mm)	28.53" (724.66mm)	-2.01" (-51.05mm)	40th Driest	Driest since: 1988	1977
Mar 1990–Jan 1991 11-Month	26.52" (673.61mm)	28.53" (724.66mm)	-2.01" (-51.05mm)	89th Wettest	Wettest since: 1990	1997
Feb 1990–Jan 1991 12-Month	30.23" (767.84mm)	32.13" (816.10mm)	-1.90" (-48.26mm)	47th Driest	Driest since: 1990	1977
Feb 1990–Jan 1991 12-Month	30.23" (767.84mm)	32.13" (816.10mm)	-1.90" (-48.26mm)	82nd Wettest	Wettest since: 1987	1997
Aug 1989–Jan 1991 18-Month	46.24" (1,174.50mm)	50.47" (1,281.94mm)	-4.23" (-107.44mm)	29th Driest	Driest since: 1989	1930
Aug 1989–Jan 1991 18-Month	46.24" (1,174.50mm)	50.47" (1,281.94mm)	-4.23" (-107.44mm)	99th Wettest	Wettest since: 1990	1997
Feb 1989–Jan 1991 24-Month	59.70" (1,516.38mm)	64.28" (1,632.71mm)	-4.58" (-116.33mm)	35th Driest	Driest since: 1990	1931
Feb 1989–Jan 1991 24-Month	59.70" (1,516.38mm)	64.28" (1,632.71mm)	-4.58" (-116.33mm)	93rd Wettest	Wettest since: 1987	1997
Feb 1988–Jan 1991 36-Month	89.33" (2,268.98mm)	96.31" (2,446.27mm)	-6.98" (-177.29mm)	27th Driest	Driest since: 1990	1931
Feb 1988–Jan 1991 36-Month	89.33" (2,268.98mm)	96.31" (2,446.27mm)	-6.98" (-177.29mm)	100th Wettest	Wettest since: 1987	1998
Feb 1987–Jan 1991 48-Month	115.57" (2,935.48mm)	128.35" (3,260.09mm)	-12.78" (-324.61mm)	10th Driest	Driest since: 1937	1932
Feb 1987–Jan 1991 48-Month	115.57" (2,935.48mm)	128.35" (3,260.09mm)	-12.78" (-324.61mm)	116th Wettest	Wettest since: 1990	1999
Feb 1986–Jan 1991 60-Month	147.47" (3,745.74mm)	160.30" (4,071.62mm)	-12.83" (-325.88mm)	16th Driest	Driest since: 1990	1933
Feb 1986–Jan 1991 60-Month	147.47" (3,745.74mm)	160.30" (4,071.62mm)	-12.83" (-325.88mm)	109th Wettest	Wettest since: 1989	2000

Citing This Page

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