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 2004

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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 2004 1-Month	0.70" (17.78mm)	2.02" (51.31mm)	-1.32" (-33.53mm)	5th Driest	Driest since: 2002	1974
May 2004 1-Month	0.70" (17.78mm)	2.02" (51.31mm)	-1.32" (-33.53mm)	124th Wettest	Wettest since: 2003	2015
Apr–May 2004 2-Month	3.85" (97.79mm)	3.86" (98.04mm)	-0.01" (-0.25mm)	75th Driest	Driest since: 2003	2002
Apr–May 2004 2-Month	3.85" (97.79mm)	3.86" (98.04mm)	-0.01" (-0.25mm)	54th Wettest	Wettest since: 2001	1957
Mar–May 2004 3-Month	4.46" (113.28mm)	5.37" (136.40mm)	-0.91" (-23.12mm)	34th Driest	Driest since: 2002	2002
Mar–May 2004 3-Month	4.46" (113.28mm)	5.37" (136.40mm)	-0.91" (-23.12mm)	95th Wettest	Wettest since: 2003	1957
Feb–May 2004 4-Month	5.73" (145.54mm)	6.46" (164.08mm)	-0.73" (-18.54mm)	40th Driest	Driest since: 2002	2002
Feb–May 2004 4-Month	5.73" (145.54mm)	6.46" (164.08mm)	-0.73" (-18.54mm)	89th Wettest	Wettest since: 2003	1905
Jan–May 2004 5-Month	6.63" (168.40mm)	7.52" (191.01mm)	-0.89" (-22.61mm)	38th Driest	Driest since: 2002	2002
Jan–May 2004 5-Month	6.63" (168.40mm)	7.52" (191.01mm)	-0.89" (-22.61mm)	91st Wettest	Wettest since: 2003	1957
Dec 2003–May 2004 6-Month	7.54" (191.52mm)	8.60" (218.44mm)	-1.06" (-26.92mm)	37th Driest	Driest since: 2002	2002
Dec 2003–May 2004 6-Month	7.54" (191.52mm)	8.60" (218.44mm)	-1.06" (-26.92mm)	91st Wettest	Wettest since: 2003	1957
Nov 2003–May 2004 7-Month	8.88" (225.55mm)	9.66" (245.36mm)	-0.78" (-19.81mm)	46th Driest	Driest since: 2002	2002
Nov 2003–May 2004 7-Month	8.88" (225.55mm)	9.66" (245.36mm)	-0.78" (-19.81mm)	82nd Wettest	Wettest since: 2003	1957
Oct 2003–May 2004 8-Month	9.25" (234.95mm)	11.00" (279.40mm)	-1.75" (-44.45mm)	30th Driest	Driest since: 2002	2002
Oct 2003–May 2004 8-Month	9.25" (234.95mm)	11.00" (279.40mm)	-1.75" (-44.45mm)	98th Wettest	Wettest since: 2003	1995
Sep 2003–May 2004 9-Month	10.69" (271.53mm)	12.43" (315.72mm)	-1.74" (-44.19mm)	33rd Driest	Driest since: 2002	2002
Sep 2003–May 2004 9-Month	10.69" (271.53mm)	12.43" (315.72mm)	-1.74" (-44.19mm)	95th Wettest	Wettest since: 2003	1942
Aug 2003–May 2004 10-Month	12.54" (318.52mm)	14.44" (366.78mm)	-1.90" (-48.26mm)	31st Driest	Driest since: 2002	2002
Aug 2003–May 2004 10-Month	12.54" (318.52mm)	14.44" (366.78mm)	-1.90" (-48.26mm)	97th Wettest	Wettest since: 2003	1942
Jul 2003–May 2004 11-Month	13.56" (344.42mm)	16.54" (420.12mm)	-2.98" (-75.70mm)	17th Driest	Driest since: 2002	2002
Jul 2003–May 2004 11-Month	13.56" (344.42mm)	16.54" (420.12mm)	-2.98" (-75.70mm)	111th Wettest	Wettest since: 2003	1942
Jun 2003–May 2004 12-Month	15.63" (397.00mm)	18.08" (459.23mm)	-2.45" (-62.23mm)	28th Driest	Driest since: 2002	2002
Jun 2003–May 2004 12-Month	15.63" (397.00mm)	18.08" (459.23mm)	-2.45" (-62.23mm)	100th Wettest	Wettest since: 2003	1942
Dec 2002–May 2004 18-Month	23.71" (602.23mm)	26.70" (678.18mm)	-2.99" (-75.95mm)	23rd Driest	Driest since: 2003	2013
	23.71" (602.23mm)	26.70" (678.18mm)	-2.99" (-75.95mm)	104th Wettest	Wettest since: 2001	1942
	Ties: 1989
Jun 2002–May 2004 24-Month	31.79" (807.47mm)	36.18" (918.97mm)	-4.39" (-111.50mm)	17th Driest	Driest since: 2003	1902
Jun 2002–May 2004 24-Month	31.79" (807.47mm)	36.18" (918.97mm)	-4.39" (-111.50mm)	110th Wettest	Wettest since: 2001	1942
Jun 2001–May 2004 36-Month	43.81" (1,112.77mm)	54.21" (1,376.93mm)	-10.40" (-264.16mm)	2nd Driest	Driest to Date	2022
Jun 2001–May 2004 36-Month	43.81" (1,112.77mm)	54.21" (1,376.93mm)	-10.40" (-264.16mm)	124th Wettest	Wettest since: 2003	1943
Jun 2000–May 2004 48-Month	61.13" (1,552.70mm)	72.23" (1,834.64mm)	-11.10" (-281.94mm)	3rd Driest	Driest since: 1956	1956
Jun 2000–May 2004 48-Month	61.13" (1,552.70mm)	72.23" (1,834.64mm)	-11.10" (-281.94mm)	122nd Wettest	Wettest since: 2003	1944
Jun 1999–May 2004 60-Month	79.20" (2,011.68mm)	90.24" (2,292.10mm)	-11.04" (-280.42mm)	3rd Driest	Driest since: 1936	2022
Jun 1999–May 2004 60-Month	79.20" (2,011.68mm)	90.24" (2,292.10mm)	-11.04" (-280.42mm)	121st Wettest	Wettest since: 2003	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 23, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings