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, September 1905

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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
September 1905 1-Month	1.42" (36.07mm)	1.43" (36.32mm)	-0.01" (-0.25mm)	73rd Driest	Driest since: 1903	1956
September 1905 1-Month	1.42" (36.07mm)	1.43" (36.32mm)	-0.01" (-0.25mm)	56th Wettest	Wettest since: 1904	2013
Aug–Sep 1905 2-Month	2.70" (68.58mm)	3.46" (87.88mm)	-0.76" (-19.30mm)	30th Driest	Driest since: 1900	1944
Aug–Sep 1905 2-Month	2.70" (68.58mm)	3.46" (87.88mm)	-0.76" (-19.30mm)	99th Wettest	Wettest since: 1904	2013
Jul–Sep 1905 3-Month	4.74" (120.40mm)	5.56" (141.22mm)	-0.82" (-20.82mm)	41st Driest	Driest since: 1903	1900
Jul–Sep 1905 3-Month	4.74" (120.40mm)	5.56" (141.22mm)	-0.82" (-20.82mm)	88th Wettest	Wettest since: 1904	2013
Jun–Sep 1905 4-Month	5.81" (147.57mm)	7.10" (180.34mm)	-1.29" (-32.77mm)	25th Driest	Driest since: 1901	1924
Jun–Sep 1905 4-Month	5.81" (147.57mm)	7.10" (180.34mm)	-1.29" (-32.77mm)	104th Wettest	Wettest since: 1904	1965
May–Sep 1905 5-Month	8.34" (211.84mm)	9.12" (231.65mm)	-0.78" (-19.81mm)	45th Driest	Driest since: 1901	1939
May–Sep 1905 5-Month	8.34" (211.84mm)	9.12" (231.65mm)	-0.78" (-19.81mm)	84th Wettest	Wettest since: 1904	1965
Apr–Sep 1905 6-Month	12.31" (312.67mm)	10.96" (278.38mm)	1.35" (34.29mm)	100th Driest	Driest since: 1903	1939
Apr–Sep 1905 6-Month	12.31" (312.67mm)	10.96" (278.38mm)	1.35" (34.29mm)	29th Wettest	Wettest since: 1904	1999
Mar–Sep 1905 7-Month	15.06" (382.52mm)	12.47" (316.74mm)	2.59" (65.78mm)	117th Driest	Driest since: 1904	2002
Mar–Sep 1905 7-Month	15.06" (382.52mm)	12.47" (316.74mm)	2.59" (65.78mm)	12th Wettest	Wettest to Date	1941
Feb–Sep 1905 8-Month	17.01" (432.05mm)	13.56" (344.42mm)	3.45" (87.63mm)	120th Driest	Driest since: 1904	2002
Feb–Sep 1905 8-Month	17.01" (432.05mm)	13.56" (344.42mm)	3.45" (87.63mm)	9th Wettest	Wettest to Date	1941
Jan–Sep 1905 9-Month	18.36" (466.34mm)	14.62" (371.35mm)	3.74" (94.99mm)	124th Driest	Driest since: 1904	2002
	18.36" (466.34mm)	14.62" (371.35mm)	3.74" (94.99mm)	5th Wettest	Wettest to Date	1957
	Ties: 1999
Dec 1904–Sep 1905 10-Month	19.20" (487.68mm)	15.70" (398.78mm)	3.50" (88.90mm)	120th Driest	Driest since: 1904	2002
Dec 1904–Sep 1905 10-Month	19.20" (487.68mm)	15.70" (398.78mm)	3.50" (88.90mm)	8th Wettest	Wettest to Date	1957
Nov 1904–Sep 1905 11-Month	19.23" (488.44mm)	16.76" (425.70mm)	2.47" (62.74mm)	111th Driest	Driest since: 1904	2002
Nov 1904–Sep 1905 11-Month	19.23" (488.44mm)	16.76" (425.70mm)	2.47" (62.74mm)	17th Wettest	Wettest to Date	1941
Oct 1904–Sep 1905 12-Month	20.25" (514.35mm)	18.10" (459.74mm)	2.15" (54.61mm)	102nd Driest	Driest since: 1904	2002
	20.25" (514.35mm)	18.10" (459.74mm)	2.15" (54.61mm)	26th Wettest	Wettest to Date	1995
	Ties: 1986
Apr 1904–Sep 1905 18-Month	32.81" (833.37mm)	29.08" (738.63mm)	3.73" (94.74mm)	115th Driest	Driest since: 1904	2002
Apr 1904–Sep 1905 18-Month	32.81" (833.37mm)	29.08" (738.63mm)	3.73" (94.74mm)	13th Wettest	Wettest to Date	1942
Oct 1903–Sep 1905 24-Month	36.95" (938.53mm)	36.22" (919.99mm)	0.73" (18.54mm)	75th Driest	Driest since: 1904	2003
Oct 1903–Sep 1905 24-Month	36.95" (938.53mm)	36.22" (919.99mm)	0.73" (18.54mm)	52nd Wettest	Wettest since: 1898	1942
Oct 1902–Sep 1905 36-Month	55.09" (1,399.29mm)	54.27" (1,378.46mm)	0.82" (20.83mm)	74th Driest	Driest since: 1904	1956
Oct 1902–Sep 1905 36-Month	55.09" (1,399.29mm)	54.27" (1,378.46mm)	0.82" (20.83mm)	52nd Wettest	Wettest since: 1898	1997
Oct 1901–Sep 1905 48-Month	69.62" (1,768.35mm)	72.31" (1,836.67mm)	-2.69" (-68.32mm)	40th Driest	Driest since: 1904	1956
Oct 1901–Sep 1905 48-Month	69.62" (1,768.35mm)	72.31" (1,836.67mm)	-2.69" (-68.32mm)	85th Wettest	Wettest since: 1900	1998
Oct 1900–Sep 1905 60-Month	84.93" (2,157.22mm)	90.33" (2,294.38mm)	-5.40" (-137.16mm)	30th Driest	Driest since: 1904	2022
Oct 1900–Sep 1905 60-Month	84.93" (2,157.22mm)	90.33" (2,294.38mm)	-5.40" (-137.16mm)	94th Wettest	Wettest since: 1901	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings