Statewide Rankings

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

Colorado

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	1.38" (35.05mm)	2.02" (51.31mm)	-0.64" (-16.26mm)	31st Driest	Driest since: 1984	1974
May 1989 1-Month	1.38" (35.05mm)	2.02" (51.31mm)	-0.64" (-16.26mm)	98th Wettest	Wettest since: 1988	2015
Apr–May 1989 2-Month	2.16" (54.86mm)	3.86" (98.04mm)	-1.70" (-43.18mm)	9th Driest	Driest since: 1974	2002
Apr–May 1989 2-Month	2.16" (54.86mm)	3.86" (98.04mm)	-1.70" (-43.18mm)	120th Wettest	Wettest since: 1988	1957
Mar–May 1989 3-Month	3.07" (77.98mm)	5.37" (136.40mm)	-2.30" (-58.42mm)	6th Driest	Driest since: 1966	2002
	3.07" (77.98mm)	5.37" (136.40mm)	-2.30" (-58.42mm)	123rd Wettest	Wettest since: 1988	1957
	Ties: 1913
Feb–May 1989 4-Month	4.59" (116.59mm)	6.46" (164.08mm)	-1.87" (-47.49mm)	15th Driest	Driest since: 1974	2002
Feb–May 1989 4-Month	4.59" (116.59mm)	6.46" (164.08mm)	-1.87" (-47.49mm)	114th Wettest	Wettest since: 1988	1905
Jan–May 1989 5-Month	5.61" (142.49mm)	7.52" (191.01mm)	-1.91" (-48.52mm)	15th Driest	Driest since: 1972	2002
Jan–May 1989 5-Month	5.61" (142.49mm)	7.52" (191.01mm)	-1.91" (-48.52mm)	114th Wettest	Wettest since: 1988	1957
Dec 1988–May 1989 6-Month	6.75" (171.45mm)	8.60" (218.44mm)	-1.85" (-46.99mm)	17th Driest	Driest since: 1977	2002
Dec 1988–May 1989 6-Month	6.75" (171.45mm)	8.60" (218.44mm)	-1.85" (-46.99mm)	111th Wettest	Wettest since: 1988	1957
Nov 1988–May 1989 7-Month	8.10" (205.74mm)	9.66" (245.36mm)	-1.56" (-39.62mm)	24th Driest	Driest since: 1977	2002
Nov 1988–May 1989 7-Month	8.10" (205.74mm)	9.66" (245.36mm)	-1.56" (-39.62mm)	104th Wettest	Wettest since: 1988	1957
Oct 1988–May 1989 8-Month	8.36" (212.34mm)	11.00" (279.40mm)	-2.64" (-67.06mm)	13th Driest	Driest since: 1977	2002
Oct 1988–May 1989 8-Month	8.36" (212.34mm)	11.00" (279.40mm)	-2.64" (-67.06mm)	115th Wettest	Wettest since: 1988	1995
Sep 1988–May 1989 9-Month	10.16" (258.06mm)	12.43" (315.72mm)	-2.27" (-57.66mm)	20th Driest	Driest since: 1977	2002
	10.16" (258.06mm)	12.43" (315.72mm)	-2.27" (-57.66mm)	108th Wettest	Wettest since: 1988	1942
	Ties: 1933
Aug 1988–May 1989 10-Month	11.88" (301.75mm)	14.44" (366.78mm)	-2.56" (-65.03mm)	19th Driest	Driest since: 1977	2002
Aug 1988–May 1989 10-Month	11.88" (301.75mm)	14.44" (366.78mm)	-2.56" (-65.03mm)	109th Wettest	Wettest since: 1988	1942
Jul 1988–May 1989 11-Month	13.55" (344.17mm)	16.54" (420.12mm)	-2.99" (-75.95mm)	16th Driest	Driest since: 1981	2002
Jul 1988–May 1989 11-Month	13.55" (344.17mm)	16.54" (420.12mm)	-2.99" (-75.95mm)	112th Wettest	Wettest since: 1988	1942
Jun 1988–May 1989 12-Month	15.25" (387.35mm)	18.08" (459.23mm)	-2.83" (-71.88mm)	24th Driest	Driest since: 1981	2002
Jun 1988–May 1989 12-Month	15.25" (387.35mm)	18.08" (459.23mm)	-2.83" (-71.88mm)	104th Wettest	Wettest since: 1988	1942
Dec 1987–May 1989 18-Month	23.71" (602.23mm)	26.70" (678.18mm)	-2.99" (-75.95mm)	23rd Driest	Driest since: 1977	2013
	23.71" (602.23mm)	26.70" (678.18mm)	-2.99" (-75.95mm)	104th Wettest	Wettest since: 1988	1942
	Ties: 2004
Jun 1987–May 1989 24-Month	32.54" (826.52mm)	36.18" (918.97mm)	-3.64" (-92.45mm)	26th Driest	Driest since: 1982	1902
Jun 1987–May 1989 24-Month	32.54" (826.52mm)	36.18" (918.97mm)	-3.64" (-92.45mm)	101st Wettest	Wettest since: 1988	1942
Jun 1986–May 1989 36-Month	54.26" (1,378.20mm)	54.21" (1,376.93mm)	0.05" (1.27mm)	61st Driest	Driest since: 1982	2022
	54.26" (1,378.20mm)	54.21" (1,376.93mm)	0.05" (1.27mm)	65th Wettest	Wettest since: 1988	1943
	Ties: 1992
Jun 1985–May 1989 48-Month	73.17" (1,858.52mm)	72.23" (1,834.64mm)	0.94" (23.88mm)	73rd Driest	Driest since: 1982	1956
Jun 1985–May 1989 48-Month	73.17" (1,858.52mm)	72.23" (1,834.64mm)	0.94" (23.88mm)	52nd Wettest	Wettest since: 1988	1944
Jun 1984–May 1989 60-Month	94.86" (2,409.44mm)	90.24" (2,292.10mm)	4.62" (117.34mm)	99th Driest	Driest since: 1983	2022
Jun 1984–May 1989 60-Month	94.86" (2,409.44mm)	90.24" (2,292.10mm)	4.62" (117.34mm)	25th Wettest	Wettest since: 1988	1987

Citing This Page

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