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 1998

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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 1998 1-Month	6.36" (161.54mm)	4.53" (115.06mm)	1.83" (46.48mm)	111th Driest	Driest since: 1997	1985
January 1998 1-Month	6.36" (161.54mm)	4.53" (115.06mm)	1.83" (46.48mm)	18th Wettest	Wettest since: 1974	1953
Dec 1997–Jan 1998 2-Month	9.05" (229.87mm)	9.17" (232.92mm)	-0.12" (-3.05mm)	64th Driest	Driest since: 1994	1977
Dec 1997–Jan 1998 2-Month	9.05" (229.87mm)	9.17" (232.92mm)	-0.12" (-3.05mm)	64th Wettest	Wettest since: 1997	1965
Nov 1997–Jan 1998 3-Month	12.02" (305.31mm)	13.53" (343.66mm)	-1.51" (-38.35mm)	42nd Driest	Driest since: 1994	1977
Nov 1997–Jan 1998 3-Month	12.02" (305.31mm)	13.53" (343.66mm)	-1.51" (-38.35mm)	86th Wettest	Wettest since: 1997	1974
Oct 1997–Jan 1998 4-Month	16.10" (408.94mm)	16.08" (408.43mm)	0.02" (0.51mm)	63rd Driest	Driest since: 1994	1977
Oct 1997–Jan 1998 4-Month	16.10" (408.94mm)	16.08" (408.43mm)	0.02" (0.51mm)	65th Wettest	Wettest since: 1997	1997
Sep 1997–Jan 1998 5-Month	18.54" (470.92mm)	17.50" (444.50mm)	1.04" (26.42mm)	78th Driest	Driest since: 1994	1977
Sep 1997–Jan 1998 5-Month	18.54" (470.92mm)	17.50" (444.50mm)	1.04" (26.42mm)	50th Wettest	Wettest since: 1997	1974
Aug 1997–Jan 1998 6-Month	19.51" (495.55mm)	18.31" (465.07mm)	1.20" (30.48mm)	80th Driest	Driest since: 1994	1977
	19.51" (495.55mm)	18.31" (465.07mm)	1.20" (30.48mm)	48th Wettest	Wettest since: 1997	1974
	Ties: 1959
Jul 1997–Jan 1998 7-Month	20.98" (532.89mm)	19.04" (483.62mm)	1.94" (49.27mm)	92nd Driest	Driest since: 1995	1977
Jul 1997–Jan 1998 7-Month	20.98" (532.89mm)	19.04" (483.62mm)	1.94" (49.27mm)	36th Wettest	Wettest since: 1997	1956
Jun 1997–Jan 1998 8-Month	23.22" (589.79mm)	20.76" (527.30mm)	2.46" (62.49mm)	97th Driest	Driest since: 1995	1977
Jun 1997–Jan 1998 8-Month	23.22" (589.79mm)	20.76" (527.30mm)	2.46" (62.49mm)	31st Wettest	Wettest since: 1997	1956
May 1997–Jan 1998 9-Month	25.18" (639.57mm)	22.91" (581.91mm)	2.27" (57.66mm)	92nd Driest	Driest since: 1995	1977
May 1997–Jan 1998 9-Month	25.18" (639.57mm)	22.91" (581.91mm)	2.27" (57.66mm)	36th Wettest	Wettest since: 1997	1997
Apr 1997–Jan 1998 10-Month	28.47" (723.14mm)	25.27" (641.86mm)	3.20" (81.28mm)	98th Driest	Driest since: 1995	1977
Apr 1997–Jan 1998 10-Month	28.47" (723.14mm)	25.27" (641.86mm)	3.20" (81.28mm)	30th Wettest	Wettest since: 1997	1997
Mar 1997–Jan 1998 11-Month	33.19" (843.03mm)	28.53" (724.66mm)	4.66" (118.37mm)	111th Driest	Driest since: 1995	1977
Mar 1997–Jan 1998 11-Month	33.19" (843.03mm)	28.53" (724.66mm)	4.66" (118.37mm)	17th Wettest	Wettest since: 1997	1997
Feb 1997–Jan 1998 12-Month	35.62" (904.75mm)	32.13" (816.10mm)	3.49" (88.65mm)	99th Driest	Driest since: 1995	1977
Feb 1997–Jan 1998 12-Month	35.62" (904.75mm)	32.13" (816.10mm)	3.49" (88.65mm)	29th Wettest	Wettest since: 1997	1997
Aug 1996–Jan 1998 18-Month	63.05" (1,601.47mm)	50.47" (1,281.94mm)	12.58" (319.53mm)	125th Driest	Driest since: 1996	1930
Aug 1996–Jan 1998 18-Month	63.05" (1,601.47mm)	50.47" (1,281.94mm)	12.58" (319.53mm)	2nd Wettest	Wettest since: 1997	1997
Feb 1996–Jan 1998 24-Month	80.30" (2,039.62mm)	64.28" (1,632.71mm)	16.02" (406.91mm)	125th Driest	Driest since: 1996	1931
Feb 1996–Jan 1998 24-Month	80.30" (2,039.62mm)	64.28" (1,632.71mm)	16.02" (406.91mm)	2nd Wettest	Wettest since: 1997	1997
Feb 1995–Jan 1998 36-Month	121.28" (3,080.51mm)	96.31" (2,446.27mm)	24.97" (634.24mm)	125th Driest	Driest since: 1997	1931
Feb 1995–Jan 1998 36-Month	121.28" (3,080.51mm)	96.31" (2,446.27mm)	24.97" (634.24mm)	1st Wettest	Wettest to Date	1998
Feb 1994–Jan 1998 48-Month	153.58" (3,900.93mm)	128.35" (3,260.09mm)	25.23" (640.84mm)	123rd Driest	Driest since: 1997	1932
Feb 1994–Jan 1998 48-Month	153.58" (3,900.93mm)	128.35" (3,260.09mm)	25.23" (640.84mm)	2nd Wettest	Wettest to Date	1999
Feb 1993–Jan 1998 60-Month	182.20" (4,627.88mm)	160.30" (4,071.62mm)	21.90" (556.26mm)	120th Driest	Driest since: 1997	1933
Feb 1993–Jan 1998 60-Month	182.20" (4,627.88mm)	160.30" (4,071.62mm)	21.90" (556.26mm)	4th Wettest	Wettest since: 1985	2000

Citing This Page

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