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 1965

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
September 1965 1-Month	2.55" (64.77mm)	1.43" (36.32mm)	1.12" (28.45mm)	120th Driest	Driest since: 1964	1956
September 1965 1-Month	2.55" (64.77mm)	1.43" (36.32mm)	1.12" (28.45mm)	9th Wettest	Wettest since: 1961	2013
Aug–Sep 1965 2-Month	4.97" (126.24mm)	3.46" (87.88mm)	1.51" (38.36mm)	119th Driest	Driest since: 1964	1944
Aug–Sep 1965 2-Month	4.97" (126.24mm)	3.46" (87.88mm)	1.51" (38.36mm)	10th Wettest	Wettest since: 1963	2013
Jul–Sep 1965 3-Month	8.22" (208.79mm)	5.56" (141.22mm)	2.66" (67.57mm)	126th Driest	Driest since: 1964	1900
Jul–Sep 1965 3-Month	8.22" (208.79mm)	5.56" (141.22mm)	2.66" (67.57mm)	3rd Wettest	Wettest since: 1929	2013
Jun–Sep 1965 4-Month	11.71" (297.43mm)	7.10" (180.34mm)	4.61" (117.09mm)	128th Driest	Driest since: 1964	1924
Jun–Sep 1965 4-Month	11.71" (297.43mm)	7.10" (180.34mm)	4.61" (117.09mm)	1st Wettest	Wettest to Date	1965
May–Sep 1965 5-Month	13.72" (348.49mm)	9.12" (231.65mm)	4.60" (116.84mm)	128th Driest	Driest since: 1964	1939
May–Sep 1965 5-Month	13.72" (348.49mm)	9.12" (231.65mm)	4.60" (116.84mm)	1st Wettest	Wettest to Date	1965
Apr–Sep 1965 6-Month	15.29" (388.37mm)	10.96" (278.38mm)	4.33" (109.99mm)	124th Driest	Driest since: 1964	1939
Apr–Sep 1965 6-Month	15.29" (388.37mm)	10.96" (278.38mm)	4.33" (109.99mm)	5th Wettest	Wettest since: 1957	1999
Mar–Sep 1965 7-Month	16.87" (428.50mm)	12.47" (316.74mm)	4.40" (111.76mm)	125th Driest	Driest since: 1964	2002
Mar–Sep 1965 7-Month	16.87" (428.50mm)	12.47" (316.74mm)	4.40" (111.76mm)	4th Wettest	Wettest since: 1957	1941
Feb–Sep 1965 8-Month	17.86" (453.64mm)	13.56" (344.42mm)	4.30" (109.22mm)	125th Driest	Driest since: 1964	2002
Feb–Sep 1965 8-Month	17.86" (453.64mm)	13.56" (344.42mm)	4.30" (109.22mm)	4th Wettest	Wettest since: 1957	1941
Jan–Sep 1965 9-Month	19.11" (485.39mm)	14.62" (371.35mm)	4.49" (114.04mm)	125th Driest	Driest since: 1964	2002
Jan–Sep 1965 9-Month	19.11" (485.39mm)	14.62" (371.35mm)	4.49" (114.04mm)	4th Wettest	Wettest since: 1957	1957
Dec 1964–Sep 1965 10-Month	20.87" (530.10mm)	15.70" (398.78mm)	5.17" (131.32mm)	125th Driest	Driest since: 1964	2002
Dec 1964–Sep 1965 10-Month	20.87" (530.10mm)	15.70" (398.78mm)	5.17" (131.32mm)	3rd Wettest	Wettest since: 1957	1957
Nov 1964–Sep 1965 11-Month	22.43" (569.72mm)	16.76" (425.70mm)	5.67" (144.02mm)	125th Driest	Driest since: 1964	2002
Nov 1964–Sep 1965 11-Month	22.43" (569.72mm)	16.76" (425.70mm)	5.67" (144.02mm)	3rd Wettest	Wettest since: 1957	1941
Oct 1964–Sep 1965 12-Month	22.58" (573.53mm)	18.10" (459.74mm)	4.48" (113.79mm)	123rd Driest	Driest since: 1964	2002
Oct 1964–Sep 1965 12-Month	22.58" (573.53mm)	18.10" (459.74mm)	4.48" (113.79mm)	5th Wettest	Wettest since: 1957	1995
Apr 1964–Sep 1965 18-Month	31.62" (803.15mm)	29.08" (738.63mm)	2.54" (64.52mm)	101st Driest	Driest since: 1964	2002
	31.62" (803.15mm)	29.08" (738.63mm)	2.54" (64.52mm)	27th Wettest	Wettest since: 1958	1942
	Ties: 1970
Oct 1963–Sep 1965 24-Month	36.82" (935.23mm)	36.22" (919.99mm)	0.60" (15.24mm)	71st Driest	Driest since: 1964	2003
Oct 1963–Sep 1965 24-Month	36.82" (935.23mm)	36.22" (919.99mm)	0.60" (15.24mm)	56th Wettest	Wettest since: 1958	1942
Oct 1962–Sep 1965 36-Month	52.55" (1,334.77mm)	54.27" (1,378.46mm)	-1.72" (-43.69mm)	47th Driest	Driest since: 1964	1956
Oct 1962–Sep 1965 36-Month	52.55" (1,334.77mm)	54.27" (1,378.46mm)	-1.72" (-43.69mm)	79th Wettest	Wettest since: 1959	1997
Oct 1961–Sep 1965 48-Month	68.51" (1,740.15mm)	72.31" (1,836.67mm)	-3.80" (-96.52mm)	36th Driest	Driest since: 1964	1956
Oct 1961–Sep 1965 48-Month	68.51" (1,740.15mm)	72.31" (1,836.67mm)	-3.80" (-96.52mm)	89th Wettest	Wettest since: 1961	1998
Oct 1960–Sep 1965 60-Month	88.78" (2,255.01mm)	90.33" (2,294.38mm)	-1.55" (-39.37mm)	53rd Driest	Driest since: 1964	2022
Oct 1960–Sep 1965 60-Month	88.78" (2,255.01mm)	90.33" (2,294.38mm)	-1.55" (-39.37mm)	71st Wettest	Wettest since: 1961	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings