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 1966

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1966 1-Month	1.14" (28.96mm)	1.84" (46.74mm)	-0.70" (-17.78mm)	24th Driest	Driest since: 1963	2002
	1.14" (28.96mm)	1.84" (46.74mm)	-0.70" (-17.78mm)	105th Wettest	Wettest since: 1965	1900
	Ties: 1937, 1979, 2008
Mar–Apr 1966 2-Month	1.53" (38.86mm)	3.35" (85.09mm)	-1.82" (-46.23mm)	2nd Driest	Driest since: 1966	2002
Mar–Apr 1966 2-Month	1.53" (38.86mm)	3.35" (85.09mm)	-1.82" (-46.23mm)	127th Wettest	Wettest since: 1965	1906
Feb–Apr 1966 3-Month	2.31" (58.67mm)	4.44" (112.78mm)	-2.13" (-54.11mm)	3rd Driest	Driest since: 1966	2002
Feb–Apr 1966 3-Month	2.31" (58.67mm)	4.44" (112.78mm)	-2.13" (-54.11mm)	126th Wettest	Wettest since: 1965	1905
Jan–Apr 1966 4-Month	2.89" (73.41mm)	5.51" (139.95mm)	-2.62" (-66.54mm)	2nd Driest	Driest since: 1966	2002
Jan–Apr 1966 4-Month	2.89" (73.41mm)	5.51" (139.95mm)	-2.62" (-66.54mm)	127th Wettest	Wettest since: 1965	1905
Dec 1965–Apr 1966 5-Month	4.41" (112.01mm)	6.58" (167.13mm)	-2.17" (-55.12mm)	6th Driest	Driest since: 1954	2002
Dec 1965–Apr 1966 5-Month	4.41" (112.01mm)	6.58" (167.13mm)	-2.17" (-55.12mm)	122nd Wettest	Wettest since: 1965	1905
Nov 1965–Apr 1966 6-Month	5.63" (143.00mm)	7.65" (194.31mm)	-2.02" (-51.31mm)	11th Driest	Driest since: 1955	1904
Nov 1965–Apr 1966 6-Month	5.63" (143.00mm)	7.65" (194.31mm)	-2.02" (-51.31mm)	117th Wettest	Wettest since: 1965	1984
Oct 1965–Apr 1966 7-Month	6.81" (172.97mm)	8.98" (228.09mm)	-2.17" (-55.12mm)	11th Driest	Driest since: 1963	2002
	6.81" (172.97mm)	8.98" (228.09mm)	-2.17" (-55.12mm)	117th Wettest	Wettest since: 1965	1942
	Ties: 1955
Sep 1965–Apr 1966 8-Month	9.36" (237.74mm)	10.41" (264.41mm)	-1.05" (-26.67mm)	41st Driest	Driest since: 1964	1902, 2002
Sep 1965–Apr 1966 8-Month	9.36" (237.74mm)	10.41" (264.41mm)	-1.05" (-26.67mm)	87th Wettest	Wettest since: 1965	1942
Aug 1965–Apr 1966 9-Month	11.78" (299.21mm)	12.42" (315.47mm)	-0.64" (-16.26mm)	46th Driest	Driest since: 1965	2002
	11.78" (299.21mm)	12.42" (315.47mm)	-0.64" (-16.26mm)	82nd Wettest	Wettest since: 1965	1942
	Ties: 1965
Jul 1965–Apr 1966 10-Month	15.03" (381.76mm)	14.52" (368.81mm)	0.51" (12.95mm)	76th Driest	Driest since: 1965	1902
Jul 1965–Apr 1966 10-Month	15.03" (381.76mm)	14.52" (368.81mm)	0.51" (12.95mm)	52nd Wettest	Wettest since: 1962	1942
Jun 1965–Apr 1966 11-Month	18.52" (470.41mm)	16.07" (408.18mm)	2.45" (62.23mm)	109th Driest	Driest since: 1965	1981
Jun 1965–Apr 1966 11-Month	18.52" (470.41mm)	16.07" (408.18mm)	2.45" (62.23mm)	19th Wettest	Wettest since: 1948	1942
May 1965–Apr 1966 12-Month	20.53" (521.46mm)	18.08" (459.23mm)	2.45" (62.23mm)	110th Driest	Driest since: 1965	2013
May 1965–Apr 1966 12-Month	20.53" (521.46mm)	18.08" (459.23mm)	2.45" (62.23mm)	18th Wettest	Wettest since: 1958	1942
Nov 1964–Apr 1966 18-Month	29.24" (742.70mm)	25.76" (654.30mm)	3.48" (88.40mm)	114th Driest	Driest since: 1965	2013
Nov 1964–Apr 1966 18-Month	29.24" (742.70mm)	25.76" (654.30mm)	3.48" (88.40mm)	13th Wettest	Wettest since: 1958	1942
May 1964–Apr 1966 24-Month	36.73" (932.94mm)	36.16" (918.46mm)	0.57" (14.48mm)	76th Driest	Driest since: 1965	1902
May 1964–Apr 1966 24-Month	36.73" (932.94mm)	36.16" (918.46mm)	0.57" (14.48mm)	51st Wettest	Wettest since: 1959	1942
May 1963–Apr 1966 36-Month	52.62" (1,336.55mm)	54.22" (1,377.19mm)	-1.60" (-40.64mm)	45th Driest	Driest since: 1965	1955
	52.62" (1,336.55mm)	54.22" (1,377.19mm)	-1.60" (-40.64mm)	81st Wettest	Wettest since: 1962	1985
	Ties: 1938
May 1962–Apr 1966 48-Month	66.66" (1,693.16mm)	72.24" (1,834.90mm)	-5.58" (-141.74mm)	24th Driest	Driest since: 1965	1904
May 1962–Apr 1966 48-Month	66.66" (1,693.16mm)	72.24" (1,834.90mm)	-5.58" (-141.74mm)	101st Wettest	Wettest since: 1963	1986
May 1961–Apr 1966 60-Month	86.50" (2,197.10mm)	90.24" (2,292.10mm)	-3.74" (-95.00mm)	37th Driest	Driest since: 1965	1957
May 1961–Apr 1966 60-Month	86.50" (2,197.10mm)	90.24" (2,292.10mm)	-3.74" (-95.00mm)	87th Wettest	Wettest since: 1962	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings