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 1920

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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 1920 1-Month	2.06" (52.32mm)	2.02" (51.31mm)	0.04" (1.01mm)	73rd Driest	Driest since: 1919	1974
	2.06" (52.32mm)	2.02" (51.31mm)	0.04" (1.01mm)	56th Wettest	Wettest since: 1917	2015
	Ties: 1959
Apr–May 1920 2-Month	5.19" (131.83mm)	3.86" (98.04mm)	1.33" (33.79mm)	113th Driest	Driest since: 1919	2002
Apr–May 1920 2-Month	5.19" (131.83mm)	3.86" (98.04mm)	1.33" (33.79mm)	16th Wettest	Wettest since: 1917	1957
Mar–May 1920 3-Month	6.64" (168.66mm)	5.37" (136.40mm)	1.27" (32.26mm)	110th Driest	Driest since: 1919	2002
Mar–May 1920 3-Month	6.64" (168.66mm)	5.37" (136.40mm)	1.27" (32.26mm)	19th Wettest	Wettest since: 1917	1957
Feb–May 1920 4-Month	7.90" (200.66mm)	6.46" (164.08mm)	1.44" (36.58mm)	111th Driest	Driest since: 1919	2002
Feb–May 1920 4-Month	7.90" (200.66mm)	6.46" (164.08mm)	1.44" (36.58mm)	18th Wettest	Wettest since: 1915	1905
Jan–May 1920 5-Month	8.59" (218.19mm)	7.52" (191.01mm)	1.07" (27.18mm)	102nd Driest	Driest since: 1919	2002
Jan–May 1920 5-Month	8.59" (218.19mm)	7.52" (191.01mm)	1.07" (27.18mm)	27th Wettest	Wettest since: 1917	1957
Dec 1919–May 1920 6-Month	9.54" (242.32mm)	8.60" (218.44mm)	0.94" (23.88mm)	97th Driest	Driest since: 1919	2002
Dec 1919–May 1920 6-Month	9.54" (242.32mm)	8.60" (218.44mm)	0.94" (23.88mm)	31st Wettest	Wettest since: 1917	1957
Nov 1919–May 1920 7-Month	11.73" (297.94mm)	9.66" (245.36mm)	2.07" (52.58mm)	112th Driest	Driest since: 1919	2002
Nov 1919–May 1920 7-Month	11.73" (297.94mm)	9.66" (245.36mm)	2.07" (52.58mm)	16th Wettest	Wettest since: 1914	1957
Oct 1919–May 1920 8-Month	13.34" (338.84mm)	11.00" (279.40mm)	2.34" (59.44mm)	109th Driest	Driest since: 1919	2002
Oct 1919–May 1920 8-Month	13.34" (338.84mm)	11.00" (279.40mm)	2.34" (59.44mm)	19th Wettest	Wettest since: 1917	1995
Sep 1919–May 1920 9-Month	15.25" (387.35mm)	12.43" (315.72mm)	2.82" (71.63mm)	117th Driest	Driest since: 1919	2002
Sep 1919–May 1920 9-Month	15.25" (387.35mm)	12.43" (315.72mm)	2.82" (71.63mm)	11th Wettest	Wettest since: 1914	1942
Aug 1919–May 1920 10-Month	16.66" (423.16mm)	14.44" (366.78mm)	2.22" (56.38mm)	109th Driest	Driest since: 1919	2002
Aug 1919–May 1920 10-Month	16.66" (423.16mm)	14.44" (366.78mm)	2.22" (56.38mm)	19th Wettest	Wettest since: 1917	1942
Jul 1919–May 1920 11-Month	19.59" (497.59mm)	16.54" (420.12mm)	3.05" (77.47mm)	116th Driest	Driest since: 1919	2002
Jul 1919–May 1920 11-Month	19.59" (497.59mm)	16.54" (420.12mm)	3.05" (77.47mm)	12th Wettest	Wettest since: 1905	1942
Jun 1919–May 1920 12-Month	20.72" (526.29mm)	18.08" (459.23mm)	2.64" (67.06mm)	108th Driest	Driest since: 1919	2002
Jun 1919–May 1920 12-Month	20.72" (526.29mm)	18.08" (459.23mm)	2.64" (67.06mm)	20th Wettest	Wettest since: 1915	1942
Dec 1918–May 1920 18-Month	29.27" (743.46mm)	26.70" (678.18mm)	2.57" (65.28mm)	102nd Driest	Driest since: 1919	2013
Dec 1918–May 1920 18-Month	29.27" (743.46mm)	26.70" (678.18mm)	2.57" (65.28mm)	25th Wettest	Wettest since: 1917	1942
Jun 1918–May 1920 24-Month	39.89" (1,013.21mm)	36.18" (918.97mm)	3.71" (94.24mm)	109th Driest	Driest since: 1919	1902
Jun 1918–May 1920 24-Month	39.89" (1,013.21mm)	36.18" (918.97mm)	3.71" (94.24mm)	18th Wettest	Wettest since: 1916	1942
Jun 1917–May 1920 36-Month	54.86" (1,393.44mm)	54.21" (1,376.93mm)	0.65" (16.51mm)	75th Driest	Driest since: 1919	2022
Jun 1917–May 1920 36-Month	54.86" (1,393.44mm)	54.21" (1,376.93mm)	0.65" (16.51mm)	51st Wettest	Wettest since: 1917	1943
Jun 1916–May 1920 48-Month	75.07" (1,906.78mm)	72.23" (1,834.64mm)	2.84" (72.14mm)	88th Driest	Driest since: 1919	1956
Jun 1916–May 1920 48-Month	75.07" (1,906.78mm)	72.23" (1,834.64mm)	2.84" (72.14mm)	37th Wettest	Wettest since: 1918	1944
Jun 1915–May 1920 60-Month	94.11" (2,390.39mm)	90.24" (2,292.10mm)	3.87" (98.29mm)	91st Driest	Driest since: 1914	2022
Jun 1915–May 1920 60-Month	94.11" (2,390.39mm)	90.24" (2,292.10mm)	3.87" (98.29mm)	33rd Wettest	Wettest since: 1919	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings