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 1917

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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 1917 1-Month	2.31" (58.67mm)	1.84" (46.74mm)	0.47" (11.93mm)	100th Driest	Driest since: 1916	2002
	2.31" (58.67mm)	1.84" (46.74mm)	0.47" (11.93mm)	29th Wettest	Wettest since: 1915	1900
	Ties: 1919
Mar–Apr 1917 2-Month	3.43" (87.12mm)	3.35" (85.09mm)	0.08" (2.03mm)	77th Driest	Driest since: 1916	2002
Mar–Apr 1917 2-Month	3.43" (87.12mm)	3.35" (85.09mm)	0.08" (2.03mm)	52nd Wettest	Wettest since: 1915	1906
Feb–Apr 1917 3-Month	4.21" (106.93mm)	4.44" (112.78mm)	-0.23" (-5.85mm)	61st Driest	Driest since: 1916	2002
	4.21" (106.93mm)	4.44" (112.78mm)	-0.23" (-5.85mm)	68th Wettest	Wettest since: 1915	1905
	Ties: 1978, 2001
Jan–Apr 1917 4-Month	5.28" (134.11mm)	5.51" (139.95mm)	-0.23" (-5.84mm)	64th Driest	Driest since: 1913	2002
Jan–Apr 1917 4-Month	5.28" (134.11mm)	5.51" (139.95mm)	-0.23" (-5.84mm)	65th Wettest	Wettest since: 1916	1905
Dec 1916–Apr 1917 5-Month	6.61" (167.89mm)	6.58" (167.13mm)	0.03" (0.76mm)	71st Driest	Driest since: 1913	2002
	6.61" (167.89mm)	6.58" (167.13mm)	0.03" (0.76mm)	57th Wettest	Wettest since: 1916	1905
	Ties: 1968
Nov 1916–Apr 1917 6-Month	7.31" (185.67mm)	7.65" (194.31mm)	-0.34" (-8.64mm)	58th Driest	Driest since: 1913	1904
	7.31" (185.67mm)	7.65" (194.31mm)	-0.34" (-8.64mm)	70th Wettest	Wettest since: 1916	1984
	Ties: 2003
Oct 1916–Apr 1917 7-Month	9.92" (251.97mm)	8.98" (228.09mm)	0.94" (23.88mm)	91st Driest	Driest since: 1916	2002
Oct 1916–Apr 1917 7-Month	9.92" (251.97mm)	8.98" (228.09mm)	0.94" (23.88mm)	37th Wettest	Wettest since: 1915	1942
Sep 1916–Apr 1917 8-Month	10.78" (273.81mm)	10.41" (264.41mm)	0.37" (9.40mm)	75th Driest	Driest since: 1913	1902, 2002
Sep 1916–Apr 1917 8-Month	10.78" (273.81mm)	10.41" (264.41mm)	0.37" (9.40mm)	53rd Wettest	Wettest since: 1916	1942
Aug 1916–Apr 1917 9-Month	13.96" (354.58mm)	12.42" (315.47mm)	1.54" (39.11mm)	98th Driest	Driest since: 1915	2002
Aug 1916–Apr 1917 9-Month	13.96" (354.58mm)	12.42" (315.47mm)	1.54" (39.11mm)	30th Wettest	Wettest since: 1916	1942
Jul 1916–Apr 1917 10-Month	16.13" (409.70mm)	14.52" (368.81mm)	1.61" (40.89mm)	96th Driest	Driest since: 1916	1902
Jul 1916–Apr 1917 10-Month	16.13" (409.70mm)	14.52" (368.81mm)	1.61" (40.89mm)	32nd Wettest	Wettest since: 1915	1942
Jun 1916–Apr 1917 11-Month	16.78" (426.21mm)	16.07" (408.18mm)	0.71" (18.03mm)	79th Driest	Driest since: 1913	1981
Jun 1916–Apr 1917 11-Month	16.78" (426.21mm)	16.07" (408.18mm)	0.71" (18.03mm)	49th Wettest	Wettest since: 1916	1942
May 1916–Apr 1917 12-Month	18.11" (459.99mm)	18.08" (459.23mm)	0.03" (0.76mm)	62nd Driest	Driest since: 1913	2013
	18.11" (459.99mm)	18.08" (459.23mm)	0.03" (0.76mm)	66th Wettest	Wettest since: 1916	1942
	Ties: 1994
Nov 1915–Apr 1917 18-Month	27.20" (690.88mm)	25.76" (654.30mm)	1.44" (36.58mm)	91st Driest	Driest since: 1914	2013
	27.20" (690.88mm)	25.76" (654.30mm)	1.44" (36.58mm)	36th Wettest	Wettest since: 1916	1942
	Ties: 1952
May 1915–Apr 1917 24-Month	38.76" (984.50mm)	36.16" (918.46mm)	2.60" (66.04mm)	99th Driest	Driest since: 1914	1902
May 1915–Apr 1917 24-Month	38.76" (984.50mm)	36.16" (918.46mm)	2.60" (66.04mm)	28th Wettest	Wettest since: 1916	1942
May 1914–Apr 1917 36-Month	60.12" (1,527.05mm)	54.22" (1,377.19mm)	5.90" (149.86mm)	113th Driest	Driest since: 1915	1955
May 1914–Apr 1917 36-Month	60.12" (1,527.05mm)	54.22" (1,377.19mm)	5.90" (149.86mm)	13th Wettest	Wettest since: 1916	1985
May 1913–Apr 1917 48-Month	79.22" (2,012.19mm)	72.24" (1,834.90mm)	6.98" (177.29mm)	116th Driest	Driest since: 1916	1904
May 1913–Apr 1917 48-Month	79.22" (2,012.19mm)	72.24" (1,834.90mm)	6.98" (177.29mm)	9th Wettest	Wettest to Date	1986
May 1912–Apr 1917 60-Month	96.55" (2,452.37mm)	90.24" (2,292.10mm)	6.31" (160.27mm)	106th Driest	Driest since: 1915	1957
May 1912–Apr 1917 60-Month	96.55" (2,452.37mm)	90.24" (2,292.10mm)	6.31" (160.27mm)	18th Wettest	Wettest since: 1916	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings