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.

West Climate Region

Precipitation Rankings, April 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
April 1998 1-Month	1.77" (44.96mm)	1.33" (33.78mm)	0.44" (11.18mm)	102nd Driest	Driest since: 1997	1909
	1.77" (44.96mm)	1.33" (33.78mm)	0.44" (11.18mm)	27th Wettest	Wettest since: 1995	1935
	Ties: 1999
Mar–Apr 1998 2-Month	4.92" (124.97mm)	3.67" (93.22mm)	1.25" (31.75mm)	103rd Driest	Driest since: 1997	2008
Mar–Apr 1998 2-Month	4.92" (124.97mm)	3.67" (93.22mm)	1.25" (31.75mm)	26th Wettest	Wettest since: 1995	1983
Feb–Apr 1998 3-Month	12.90" (327.66mm)	6.39" (162.31mm)	6.51" (165.35mm)	126th Driest	Driest since: 1997	1997
Feb–Apr 1998 3-Month	12.90" (327.66mm)	6.39" (162.31mm)	6.51" (165.35mm)	3rd Wettest	Wettest since: 1983	1983
Jan–Apr 1998 4-Month	17.53" (445.26mm)	9.37" (238.00mm)	8.16" (207.26mm)	127th Driest	Driest since: 1997	2022
Jan–Apr 1998 4-Month	17.53" (445.26mm)	9.37" (238.00mm)	8.16" (207.26mm)	2nd Wettest	Wettest since: 1995	1995
Dec 1997–Apr 1998 5-Month	19.49" (495.05mm)	11.92" (302.77mm)	7.57" (192.28mm)	121st Driest	Driest since: 1997	1977
Dec 1997–Apr 1998 5-Month	19.49" (495.05mm)	11.92" (302.77mm)	7.57" (192.28mm)	7th Wettest	Wettest since: 1995	1978
Nov 1997–Apr 1998 6-Month	22.17" (563.12mm)	13.79" (350.27mm)	8.38" (212.85mm)	124th Driest	Driest since: 1997	1977
Nov 1997–Apr 1998 6-Month	22.17" (563.12mm)	13.79" (350.27mm)	8.38" (212.85mm)	4th Wettest	Wettest since: 1995	1983
Oct 1997–Apr 1998 7-Month	23.00" (584.20mm)	14.82" (376.43mm)	8.18" (207.77mm)	123rd Driest	Driest since: 1997	1977
Oct 1997–Apr 1998 7-Month	23.00" (584.20mm)	14.82" (376.43mm)	8.18" (207.77mm)	5th Wettest	Wettest since: 1995	1983
Sep 1997–Apr 1998 8-Month	24.09" (611.89mm)	15.31" (388.87mm)	8.78" (223.02mm)	124th Driest	Driest since: 1997	1977
Sep 1997–Apr 1998 8-Month	24.09" (611.89mm)	15.31" (388.87mm)	8.78" (223.02mm)	4th Wettest	Wettest since: 1995	1983
Aug 1997–Apr 1998 9-Month	24.40" (619.76mm)	15.70" (398.78mm)	8.70" (220.98mm)	124th Driest	Driest since: 1997	1977
Aug 1997–Apr 1998 9-Month	24.40" (619.76mm)	15.70" (398.78mm)	8.70" (220.98mm)	4th Wettest	Wettest since: 1983	1983
Jul 1997–Apr 1998 10-Month	24.85" (631.19mm)	16.03" (407.16mm)	8.82" (224.03mm)	125th Driest	Driest since: 1997	2021
Jul 1997–Apr 1998 10-Month	24.85" (631.19mm)	16.03" (407.16mm)	8.82" (224.03mm)	3rd Wettest	Wettest since: 1983	1983
Jun 1997–Apr 1998 11-Month	25.95" (659.13mm)	16.52" (419.61mm)	9.43" (239.52mm)	126th Driest	Driest since: 1997	2021
Jun 1997–Apr 1998 11-Month	25.95" (659.13mm)	16.52" (419.61mm)	9.43" (239.52mm)	2nd Wettest	Wettest since: 1983	1983
May 1997–Apr 1998 12-Month	26.33" (668.78mm)	17.44" (442.98mm)	8.89" (225.80mm)	125th Driest	Driest since: 1997	1977
May 1997–Apr 1998 12-Month	26.33" (668.78mm)	17.44" (442.98mm)	8.89" (225.80mm)	3rd Wettest	Wettest since: 1983	1983
Nov 1996–Apr 1998 18-Month	42.53" (1,080.26mm)	31.22" (792.99mm)	11.31" (287.27mm)	121st Driest	Driest since: 1997	1977
Nov 1996–Apr 1998 18-Month	42.53" (1,080.26mm)	31.22" (792.99mm)	11.31" (287.27mm)	6th Wettest	Wettest since: 1996	1983
May 1996–Apr 1998 24-Month	46.59" (1,183.39mm)	34.90" (886.46mm)	11.69" (296.93mm)	124th Driest	Driest since: 1997	1977
May 1996–Apr 1998 24-Month	46.59" (1,183.39mm)	34.90" (886.46mm)	11.69" (296.93mm)	3rd Wettest	Wettest since: 1984	1983
May 1995–Apr 1998 36-Month	66.19" (1,681.23mm)	52.30" (1,328.42mm)	13.89" (352.81mm)	121st Driest	Driest since: 1997	2022
May 1995–Apr 1998 36-Month	66.19" (1,681.23mm)	52.30" (1,328.42mm)	13.89" (352.81mm)	5th Wettest	Wettest since: 1984	1984
May 1994–Apr 1998 48-Month	92.05" (2,338.07mm)	69.56" (1,766.82mm)	22.49" (571.25mm)	124th Driest	Driest since: 1997	2015
May 1994–Apr 1998 48-Month	92.05" (2,338.07mm)	69.56" (1,766.82mm)	22.49" (571.25mm)	1st Wettest	Wettest to Date	1998
May 1993–Apr 1998 60-Month	104.84" (2,662.94mm)	86.83" (2,205.48mm)	18.01" (457.46mm)	119th Driest	Driest since: 1997	1933
May 1993–Apr 1998 60-Month	104.84" (2,662.94mm)	86.83" (2,205.48mm)	18.01" (457.46mm)	5th Wettest	Wettest since: 1986	1999

Citing This Page

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