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, February 2018

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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
February 2018 1-Month	1.13" (28.70mm)	1.09" (27.69mm)	0.04" (1.01mm)	77th Driest	Driest since: 2017	1970
	1.13" (28.70mm)	1.09" (27.69mm)	0.04" (1.01mm)	53rd Wettest	Wettest since: 2015	1903
	Ties: 1995
Jan–Feb 2018 2-Month	1.94" (49.28mm)	2.15" (54.61mm)	-0.21" (-5.33mm)	53rd Driest	Driest since: 2016	1981
	1.94" (49.28mm)	2.15" (54.61mm)	-0.21" (-5.33mm)	77th Wettest	Wettest since: 2017	1980
	Ties: 1947
Dec 2017–Feb 2018 3-Month	2.34" (59.44mm)	3.22" (81.79mm)	-0.88" (-22.35mm)	14th Driest	Driest since: 2002	1981
Dec 2017–Feb 2018 3-Month	2.34" (59.44mm)	3.22" (81.79mm)	-0.88" (-22.35mm)	115th Wettest	Wettest since: 2017	2008
Nov 2017–Feb 2018 4-Month	2.86" (72.64mm)	4.29" (108.97mm)	-1.43" (-36.33mm)	10th Driest	Driest since: 1981	1904
Nov 2017–Feb 2018 4-Month	2.86" (72.64mm)	4.29" (108.97mm)	-1.43" (-36.33mm)	119th Wettest	Wettest since: 2017	1979
Oct 2017–Feb 2018 5-Month	3.79" (96.27mm)	5.63" (143.00mm)	-1.84" (-46.73mm)	9th Driest	Driest since: 2002	1977
Oct 2017–Feb 2018 5-Month	3.79" (96.27mm)	5.63" (143.00mm)	-1.84" (-46.73mm)	120th Wettest	Wettest since: 2017	1909
Sep 2017–Feb 2018 6-Month	5.77" (146.56mm)	7.05" (179.07mm)	-1.28" (-32.51mm)	22nd Driest	Driest since: 2013	1981
Sep 2017–Feb 2018 6-Month	5.77" (146.56mm)	7.05" (179.07mm)	-1.28" (-32.51mm)	107th Wettest	Wettest since: 2017	1942
Aug 2017–Feb 2018 7-Month	7.64" (194.06mm)	9.07" (230.38mm)	-1.43" (-36.32mm)	27th Driest	Driest since: 2013	1901
Aug 2017–Feb 2018 7-Month	7.64" (194.06mm)	9.07" (230.38mm)	-1.43" (-36.32mm)	102nd Wettest	Wettest since: 2017	1942
Jul 2017–Feb 2018 8-Month	10.69" (271.53mm)	11.16" (283.46mm)	-0.47" (-11.93mm)	51st Driest	Driest since: 2013	1901
Jul 2017–Feb 2018 8-Month	10.69" (271.53mm)	11.16" (283.46mm)	-0.47" (-11.93mm)	78th Wettest	Wettest since: 2017	1942
Jun 2017–Feb 2018 9-Month	11.38" (289.05mm)	12.71" (322.83mm)	-1.33" (-33.78mm)	36th Driest	Driest since: 2013	1981
Jun 2017–Feb 2018 9-Month	11.38" (289.05mm)	12.71" (322.83mm)	-1.33" (-33.78mm)	93rd Wettest	Wettest since: 2017	1942
May 2017–Feb 2018 10-Month	14.20" (360.68mm)	14.73" (374.14mm)	-0.53" (-13.46mm)	51st Driest	Driest since: 2013	1901
May 2017–Feb 2018 10-Month	14.20" (360.68mm)	14.73" (374.14mm)	-0.53" (-13.46mm)	78th Wettest	Wettest since: 2017	1942
Apr 2017–Feb 2018 11-Month	16.37" (415.80mm)	16.61" (421.89mm)	-0.24" (-6.09mm)	57th Driest	Driest since: 2013	2021
Apr 2017–Feb 2018 11-Month	16.37" (415.80mm)	16.61" (421.89mm)	-0.24" (-6.09mm)	72nd Wettest	Wettest since: 2017	1942
Mar 2017–Feb 2018 12-Month	17.56" (446.02mm)	18.11" (459.99mm)	-0.55" (-13.97mm)	52nd Driest	Driest since: 2013	1935
Mar 2017–Feb 2018 12-Month	17.56" (446.02mm)	18.11" (459.99mm)	-0.55" (-13.97mm)	77th Wettest	Wettest since: 2017	1942
Sep 2016–Feb 2018 18-Month	24.91" (632.71mm)	25.17" (639.32mm)	-0.26" (-6.61mm)	67th Driest	Driest since: 2014	2003
	24.91" (632.71mm)	25.17" (639.32mm)	-0.26" (-6.61mm)	61st Wettest	Wettest since: 2017	1942
	Ties: 1960, 2014
Mar 2016–Feb 2018 24-Month	36.06" (915.92mm)	36.16" (918.46mm)	-0.10" (-2.54mm)	64th Driest	Driest since: 2014	2003
Mar 2016–Feb 2018 24-Month	36.06" (915.92mm)	36.16" (918.46mm)	-0.10" (-2.54mm)	64th Wettest	Wettest since: 2017	1943
Mar 2015–Feb 2018 36-Month	57.66" (1,464.56mm)	54.20" (1,376.68mm)	3.46" (87.88mm)	99th Driest	Driest since: 2015	1977
Mar 2015–Feb 2018 36-Month	57.66" (1,464.56mm)	54.20" (1,376.68mm)	3.46" (87.88mm)	28th Wettest	Wettest since: 2017	1998
Mar 2014–Feb 2018 48-Month	76.44" (1,941.58mm)	72.23" (1,834.64mm)	4.21" (106.94mm)	99th Driest	Driest since: 2016	1935
Mar 2014–Feb 2018 48-Month	76.44" (1,941.58mm)	72.23" (1,834.64mm)	4.21" (106.94mm)	27th Wettest	Wettest since: 2017	1987
Mar 2013–Feb 2018 60-Month	95.79" (2,433.07mm)	90.24" (2,292.10mm)	5.55" (140.97mm)	103rd Driest	Driest since: 2017	1957
Mar 2013–Feb 2018 60-Month	95.79" (2,433.07mm)	90.24" (2,292.10mm)	5.55" (140.97mm)	22nd Wettest	Wettest since: 2001	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published June 2023, retrieved on June 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings