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, April 1981

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1981 1-Month	0.95" (24.13mm)	1.84" (46.74mm)	-0.89" (-22.61mm)	15th Driest	Driest since: 1963	2002
April 1981 1-Month	0.95" (24.13mm)	1.84" (46.74mm)	-0.89" (-22.61mm)	114th Wettest	Wettest since: 1980	1900
Mar–Apr 1981 2-Month	3.35" (85.09mm)	3.35" (85.09mm)	0.00" (0.00mm)	68th Driest	Driest since: 1978	2002
Mar–Apr 1981 2-Month	3.35" (85.09mm)	3.35" (85.09mm)	0.00" (0.00mm)	61st Wettest	Wettest since: 1980	1906
Feb–Apr 1981 3-Month	3.84" (97.54mm)	4.44" (112.78mm)	-0.60" (-15.24mm)	44th Driest	Driest since: 1977	2002
Feb–Apr 1981 3-Month	3.84" (97.54mm)	4.44" (112.78mm)	-0.60" (-15.24mm)	85th Wettest	Wettest since: 1980	1905
Jan–Apr 1981 4-Month	4.20" (106.68mm)	5.51" (139.95mm)	-1.31" (-33.27mm)	21st Driest	Driest since: 1977	2002
Jan–Apr 1981 4-Month	4.20" (106.68mm)	5.51" (139.95mm)	-1.31" (-33.27mm)	108th Wettest	Wettest since: 1980	1905
Dec 1980–Apr 1981 5-Month	4.60" (116.84mm)	6.58" (167.13mm)	-1.98" (-50.29mm)	8th Driest	Driest since: 1977	2002
Dec 1980–Apr 1981 5-Month	4.60" (116.84mm)	6.58" (167.13mm)	-1.98" (-50.29mm)	120th Wettest	Wettest since: 1980	1905
Nov 1980–Apr 1981 6-Month	5.28" (134.11mm)	7.65" (194.31mm)	-2.37" (-60.20mm)	6th Driest	Driest since: 1977	1904
Nov 1980–Apr 1981 6-Month	5.28" (134.11mm)	7.65" (194.31mm)	-2.37" (-60.20mm)	122nd Wettest	Wettest since: 1980	1984
Oct 1980–Apr 1981 7-Month	6.17" (156.72mm)	8.98" (228.09mm)	-2.81" (-71.37mm)	6th Driest	Driest since: 1977	2002
Oct 1980–Apr 1981 7-Month	6.17" (156.72mm)	8.98" (228.09mm)	-2.81" (-71.37mm)	122nd Wettest	Wettest since: 1980	1942
Sep 1980–Apr 1981 8-Month	7.26" (184.40mm)	10.41" (264.41mm)	-3.15" (-80.01mm)	5th Driest	Driest since: 1954	1902, 2002
Sep 1980–Apr 1981 8-Month	7.26" (184.40mm)	10.41" (264.41mm)	-3.15" (-80.01mm)	123rd Wettest	Wettest since: 1980	1942
Aug 1980–Apr 1981 9-Month	8.77" (222.76mm)	12.42" (315.47mm)	-3.65" (-92.71mm)	5th Driest	Driest since: 1963	2002
Aug 1980–Apr 1981 9-Month	8.77" (222.76mm)	12.42" (315.47mm)	-3.65" (-92.71mm)	123rd Wettest	Wettest since: 1980	1942
Jul 1980–Apr 1981 10-Month	10.17" (258.32mm)	14.52" (368.81mm)	-4.35" (-110.49mm)	3rd Driest	Driest since: 1904	1902
Jul 1980–Apr 1981 10-Month	10.17" (258.32mm)	14.52" (368.81mm)	-4.35" (-110.49mm)	125th Wettest	Wettest since: 1980	1942
Jun 1980–Apr 1981 11-Month	10.69" (271.53mm)	16.07" (408.18mm)	-5.38" (-136.65mm)	1st Driest	Driest since: 1981	1981
Jun 1980–Apr 1981 11-Month	10.69" (271.53mm)	16.07" (408.18mm)	-5.38" (-136.65mm)	127th Wettest	Wettest since: 1980	1942
May 1980–Apr 1981 12-Month	13.58" (344.93mm)	18.08" (459.23mm)	-4.50" (-114.30mm)	7th Driest	Driest since: 1940	2013
May 1980–Apr 1981 12-Month	13.58" (344.93mm)	18.08" (459.23mm)	-4.50" (-114.30mm)	121st Wettest	Wettest since: 1980	1942
Nov 1979–Apr 1981 18-Month	24.41" (620.01mm)	25.76" (654.30mm)	-1.35" (-34.29mm)	47th Driest	Driest since: 1978	2013
Nov 1979–Apr 1981 18-Month	24.41" (620.01mm)	25.76" (654.30mm)	-1.35" (-34.29mm)	80th Wettest	Wettest since: 1980	1942
May 1979–Apr 1981 24-Month	34.98" (888.49mm)	36.16" (918.46mm)	-1.18" (-29.97mm)	48th Driest	Driest since: 1978	1902
May 1979–Apr 1981 24-Month	34.98" (888.49mm)	36.16" (918.46mm)	-1.18" (-29.97mm)	79th Wettest	Wettest since: 1980	1942
May 1978–Apr 1981 36-Month	53.48" (1,358.39mm)	54.22" (1,377.19mm)	-0.74" (-18.80mm)	55th Driest	Driest since: 1979	1955
	53.48" (1,358.39mm)	54.22" (1,377.19mm)	-0.74" (-18.80mm)	71st Wettest	Wettest since: 1980	1985
	Ties: 1962
May 1977–Apr 1981 48-Month	70.92" (1,801.37mm)	72.24" (1,834.90mm)	-1.32" (-33.53mm)	49th Driest	Driest since: 1979	1904
	70.92" (1,801.37mm)	72.24" (1,834.90mm)	-1.32" (-33.53mm)	76th Wettest	Wettest since: 1980	1986
	Ties: 1913
May 1976–Apr 1981 60-Month	84.89" (2,156.21mm)	90.24" (2,292.10mm)	-5.35" (-135.89mm)	30th Driest	Driest since: 1979	1957
May 1976–Apr 1981 60-Month	84.89" (2,156.21mm)	90.24" (2,292.10mm)	-5.35" (-135.89mm)	94th Wettest	Wettest since: 1980	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings