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 1939

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Record Driest
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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Wettest/Driest Since	Record
April 1939 1-Month	0.98" (24.89mm)	1.84" (46.74mm)	-0.86" (-21.85mm)	18th Driest	Driest since: 1936	2002
April 1939 1-Month	0.98" (24.89mm)	1.84" (46.74mm)	-0.86" (-21.85mm)	112th Wettest	Wettest since: 1938	1900
Mar–Apr 1939 2-Month	2.39" (60.71mm)	3.35" (85.09mm)	-0.96" (-24.38mm)	28th Driest	Driest since: 1936	2002
Mar–Apr 1939 2-Month	2.39" (60.71mm)	3.35" (85.09mm)	-0.96" (-24.38mm)	102nd Wettest	Wettest since: 1938	1906
Feb–Apr 1939 3-Month	3.73" (94.74mm)	4.44" (112.78mm)	-0.71" (-18.04mm)	38th Driest	Driest since: 1934	2002
	3.73" (94.74mm)	4.44" (112.78mm)	-0.71" (-18.04mm)	92nd Wettest	Wettest since: 1938	1905
	Ties: 1996
Jan–Apr 1939 4-Month	5.39" (136.91mm)	5.51" (139.95mm)	-0.12" (-3.04mm)	70th Driest	Driest since: 1937	2002
	5.39" (136.91mm)	5.51" (139.95mm)	-0.12" (-3.04mm)	60th Wettest	Wettest since: 1938	1905
	Ties: 1965
Dec 1938–Apr 1939 5-Month	6.58" (167.13mm)	6.58" (167.13mm)	0.00" (0.00mm)	69th Driest	Driest since: 1937	2002
Dec 1938–Apr 1939 5-Month	6.58" (167.13mm)	6.58" (167.13mm)	0.00" (0.00mm)	60th Wettest	Wettest since: 1938	1905
Nov 1938–Apr 1939 6-Month	7.60" (193.04mm)	7.65" (194.31mm)	-0.05" (-1.27mm)	69th Driest	Driest since: 1937	1904
	7.60" (193.04mm)	7.65" (194.31mm)	-0.05" (-1.27mm)	60th Wettest	Wettest since: 1938	1984
	Ties: 1992
Oct 1938–Apr 1939 7-Month	8.73" (221.74mm)	8.98" (228.09mm)	-0.25" (-6.35mm)	62nd Driest	Driest since: 1937	2002
Oct 1938–Apr 1939 7-Month	8.73" (221.74mm)	8.98" (228.09mm)	-0.25" (-6.35mm)	67th Wettest	Wettest since: 1938	1942
Sep 1938–Apr 1939 8-Month	11.72" (297.69mm)	10.41" (264.41mm)	1.31" (33.28mm)	94th Driest	Driest since: 1937	1902, 2002
Sep 1938–Apr 1939 8-Month	11.72" (297.69mm)	10.41" (264.41mm)	1.31" (33.28mm)	35th Wettest	Wettest since: 1938	1942
Aug 1938–Apr 1939 9-Month	13.33" (338.58mm)	12.42" (315.47mm)	0.91" (23.11mm)	84th Driest	Driest since: 1938	2002
Aug 1938–Apr 1939 9-Month	13.33" (338.58mm)	12.42" (315.47mm)	0.91" (23.11mm)	45th Wettest	Wettest since: 1926	1942
Jul 1938–Apr 1939 10-Month	15.02" (381.51mm)	14.52" (368.81mm)	0.50" (12.70mm)	75th Driest	Driest since: 1937	1902
Jul 1938–Apr 1939 10-Month	15.02" (381.51mm)	14.52" (368.81mm)	0.50" (12.70mm)	54th Wettest	Wettest since: 1938	1942
Jun 1938–Apr 1939 11-Month	16.77" (425.96mm)	16.07" (408.18mm)	0.70" (17.78mm)	78th Driest	Driest since: 1937	1981
Jun 1938–Apr 1939 11-Month	16.77" (425.96mm)	16.07" (408.18mm)	0.70" (17.78mm)	51st Wettest	Wettest since: 1938	1942
May 1938–Apr 1939 12-Month	19.32" (490.73mm)	18.08" (459.23mm)	1.24" (31.50mm)	91st Driest	Driest since: 1938	2013
May 1938–Apr 1939 12-Month	19.32" (490.73mm)	18.08" (459.23mm)	1.24" (31.50mm)	38th Wettest	Wettest since: 1929	1942
Nov 1937–Apr 1939 18-Month	28.86" (733.04mm)	25.76" (654.30mm)	3.10" (78.74mm)	113th Driest	Driest since: 1938	2013
Nov 1937–Apr 1939 18-Month	28.86" (733.04mm)	25.76" (654.30mm)	3.10" (78.74mm)	15th Wettest	Wettest since: 1924	1942
May 1937–Apr 1939 24-Month	37.66" (956.56mm)	36.16" (918.46mm)	1.50" (38.10mm)	90th Driest	Driest since: 1938	1902
May 1937–Apr 1939 24-Month	37.66" (956.56mm)	36.16" (918.46mm)	1.50" (38.10mm)	38th Wettest	Wettest since: 1929	1942
May 1936–Apr 1939 36-Month	55.28" (1,404.11mm)	54.22" (1,377.19mm)	1.06" (26.92mm)	73rd Driest	Driest since: 1938	1955
	55.28" (1,404.11mm)	54.22" (1,377.19mm)	1.06" (26.92mm)	54th Wettest	Wettest since: 1931	1985
	Ties: 1914
May 1935–Apr 1939 48-Month	71.94" (1,827.28mm)	72.24" (1,834.90mm)	-0.30" (-7.62mm)	60th Driest	Driest since: 1938	1904
May 1935–Apr 1939 48-Month	71.94" (1,827.28mm)	72.24" (1,834.90mm)	-0.30" (-7.62mm)	66th Wettest	Wettest since: 1932	1986
May 1934–Apr 1939 60-Month	86.02" (2,184.91mm)	90.24" (2,292.10mm)	-4.22" (-107.19mm)	37th Driest	Driest since: 1938	1957
May 1934–Apr 1939 60-Month	86.02" (2,184.91mm)	90.24" (2,292.10mm)	-4.22" (-107.19mm)	88th Wettest	Wettest since: 1933	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings