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.

West Climate Region

Precipitation Rankings, May 1989

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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
May 1989 1-Month	0.93" (23.62mm)	0.92" (23.37mm)	0.01" (0.25mm)	76th Driest	Driest since: 1988	1924
May 1989 1-Month	0.93" (23.62mm)	0.92" (23.37mm)	0.01" (0.25mm)	53rd Wettest	Wettest since: 1987	1998
Apr–May 1989 2-Month	1.52" (38.61mm)	2.26" (57.40mm)	-0.74" (-18.79mm)	30th Driest	Driest since: 1985	1909
Apr–May 1989 2-Month	1.52" (38.61mm)	2.26" (57.40mm)	-0.74" (-18.79mm)	99th Wettest	Wettest since: 1988	1896
Mar–May 1989 3-Month	5.05" (128.27mm)	4.59" (116.59mm)	0.46" (11.68mm)	86th Driest	Driest since: 1988	2008
Mar–May 1989 3-Month	5.05" (128.27mm)	4.59" (116.59mm)	0.46" (11.68mm)	43rd Wettest	Wettest since: 1983	1995
Feb–May 1989 4-Month	6.27" (159.26mm)	7.31" (185.67mm)	-1.04" (-26.41mm)	51st Driest	Driest since: 1988	1997
	6.27" (159.26mm)	7.31" (185.67mm)	-1.04" (-26.41mm)	78th Wettest	Wettest since: 1987	1998
	Ties: 1895, 1903
Jan–May 1989 5-Month	7.43" (188.72mm)	10.29" (261.37mm)	-2.86" (-72.65mm)	29th Driest	Driest since: 1988	2022
Jan–May 1989 5-Month	7.43" (188.72mm)	10.29" (261.37mm)	-2.86" (-72.65mm)	100th Wettest	Wettest since: 1987	1998
Dec 1988–May 1989 6-Month	9.60" (243.84mm)	12.84" (326.14mm)	-3.24" (-82.30mm)	30th Driest	Driest since: 1985	1924
Dec 1988–May 1989 6-Month	9.60" (243.84mm)	12.84" (326.14mm)	-3.24" (-82.30mm)	98th Wettest	Wettest since: 1988	1995
Nov 1988–May 1989 7-Month	12.72" (323.09mm)	14.71" (373.63mm)	-1.99" (-50.54mm)	55th Driest	Driest since: 1988	1977
Nov 1988–May 1989 7-Month	12.72" (323.09mm)	14.71" (373.63mm)	-1.99" (-50.54mm)	73rd Wettest	Wettest since: 1986	1995
Oct 1988–May 1989 8-Month	12.85" (326.39mm)	15.74" (399.80mm)	-2.89" (-73.41mm)	43rd Driest	Driest since: 1987	1977
Oct 1988–May 1989 8-Month	12.85" (326.39mm)	15.74" (399.80mm)	-2.89" (-73.41mm)	85th Wettest	Wettest since: 1988	1983
Sep 1988–May 1989 9-Month	13.06" (331.72mm)	16.23" (412.24mm)	-3.17" (-80.52mm)	41st Driest	Driest since: 1987	2021
Sep 1988–May 1989 9-Month	13.06" (331.72mm)	16.23" (412.24mm)	-3.17" (-80.52mm)	87th Wettest	Wettest since: 1988	1983
Aug 1988–May 1989 10-Month	13.60" (345.44mm)	16.62" (422.15mm)	-3.02" (-76.71mm)	41st Driest	Driest since: 1987	2021
Aug 1988–May 1989 10-Month	13.60" (345.44mm)	16.62" (422.15mm)	-3.02" (-76.71mm)	87th Wettest	Wettest since: 1988	1983
Jul 1988–May 1989 11-Month	13.75" (349.25mm)	16.95" (430.53mm)	-3.20" (-81.28mm)	38th Driest	Driest since: 1987	2021
	13.75" (349.25mm)	16.95" (430.53mm)	-3.20" (-81.28mm)	90th Wettest	Wettest since: 1988	1983
	Ties: 1949
Jun 1988–May 1989 12-Month	14.29" (362.97mm)	17.44" (442.98mm)	-3.15" (-80.01mm)	40th Driest	Driest since: 1987	2021
Jun 1988–May 1989 12-Month	14.29" (362.97mm)	17.44" (442.98mm)	-3.15" (-80.01mm)	88th Wettest	Wettest since: 1988	1983
Dec 1987–May 1989 18-Month	24.70" (627.38mm)	30.25" (768.35mm)	-5.55" (-140.97mm)	29th Driest	Driest since: 1988	1977
Dec 1987–May 1989 18-Month	24.70" (627.38mm)	30.25" (768.35mm)	-5.55" (-140.97mm)	98th Wettest	Wettest since: 1987	1983
Jun 1987–May 1989 24-Month	29.13" (739.90mm)	34.89" (886.21mm)	-5.76" (-146.31mm)	29th Driest	Driest since: 1988	2022
Jun 1987–May 1989 24-Month	29.13" (739.90mm)	34.89" (886.21mm)	-5.76" (-146.31mm)	98th Wettest	Wettest since: 1987	1983
Jun 1986–May 1989 36-Month	42.01" (1,067.05mm)	52.30" (1,328.42mm)	-10.29" (-261.37mm)	11th Driest	Driest since: 1977	2022
Jun 1986–May 1989 36-Month	42.01" (1,067.05mm)	52.30" (1,328.42mm)	-10.29" (-261.37mm)	115th Wettest	Wettest since: 1988	1984
Jun 1985–May 1989 48-Month	63.29" (1,607.57mm)	69.56" (1,766.82mm)	-6.27" (-159.25mm)	38th Driest	Driest since: 1977	2015
Jun 1985–May 1989 48-Month	63.29" (1,607.57mm)	69.56" (1,766.82mm)	-6.27" (-159.25mm)	87th Wettest	Wettest since: 1988	1998
Jun 1984–May 1989 60-Month	79.08" (2,008.63mm)	86.83" (2,205.48mm)	-7.75" (-196.85mm)	36th Driest	Driest since: 1964	1933
Jun 1984–May 1989 60-Month	79.08" (2,008.63mm)	86.83" (2,205.48mm)	-7.75" (-196.85mm)	88th Wettest	Wettest since: 1988	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published May 2023, retrieved on May 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings