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, October 1937

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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
October 1937 1-Month	1.00" (25.40mm)	1.35" (34.29mm)	-0.35" (-8.89mm)	47th Driest	Driest since: 1935	1952
	1.00" (25.40mm)	1.35" (34.29mm)	-0.35" (-8.89mm)	82nd Wettest	Wettest since: 1936	1969
	Ties: 1907, 1940
Sep–Oct 1937 2-Month	2.25" (57.15mm)	2.77" (70.36mm)	-0.52" (-13.21mm)	43rd Driest	Driest since: 1934	1922
	2.25" (57.15mm)	2.77" (70.36mm)	-0.52" (-13.21mm)	86th Wettest	Wettest since: 1936	1941
	Ties: 1945
Aug–Oct 1937 3-Month	3.78" (96.01mm)	4.80" (121.92mm)	-1.02" (-25.91mm)	35th Driest	Driest since: 1934	1944
	3.78" (96.01mm)	4.80" (121.92mm)	-1.02" (-25.91mm)	94th Wettest	Wettest since: 1936	1941
	Ties: 1988
Jul–Oct 1937 4-Month	5.67" (144.02mm)	6.90" (175.26mm)	-1.23" (-31.24mm)	32nd Driest	Driest since: 1934	1900
Jul–Oct 1937 4-Month	5.67" (144.02mm)	6.90" (175.26mm)	-1.23" (-31.24mm)	97th Wettest	Wettest since: 1936	1941
Jun–Oct 1937 5-Month	7.51" (190.75mm)	8.45" (214.63mm)	-0.94" (-23.88mm)	44th Driest	Driest since: 1935	1900
Jun–Oct 1937 5-Month	7.51" (190.75mm)	8.45" (214.63mm)	-0.94" (-23.88mm)	85th Wettest	Wettest since: 1936	1941
May–Oct 1937 6-Month	8.80" (223.52mm)	10.46" (265.68mm)	-1.66" (-42.16mm)	25th Driest	Driest since: 1934	1939
May–Oct 1937 6-Month	8.80" (223.52mm)	10.46" (265.68mm)	-1.66" (-42.16mm)	104th Wettest	Wettest since: 1936	1941
Apr–Oct 1937 7-Month	9.94" (252.48mm)	12.30" (312.42mm)	-2.36" (-59.94mm)	19th Driest	Driest since: 1934	1939
Apr–Oct 1937 7-Month	9.94" (252.48mm)	12.30" (312.42mm)	-2.36" (-59.94mm)	110th Wettest	Wettest since: 1936	1941
Mar–Oct 1937 8-Month	11.52" (292.61mm)	13.82" (351.03mm)	-2.30" (-58.42mm)	24th Driest	Driest since: 1934	1934
Mar–Oct 1937 8-Month	11.52" (292.61mm)	13.82" (351.03mm)	-2.30" (-58.42mm)	105th Wettest	Wettest since: 1936	1941
Feb–Oct 1937 9-Month	13.14" (333.76mm)	14.91" (378.71mm)	-1.77" (-44.95mm)	32nd Driest	Driest since: 1934	2002
Feb–Oct 1937 9-Month	13.14" (333.76mm)	14.91" (378.71mm)	-1.77" (-44.95mm)	97th Wettest	Wettest since: 1936	1941
Jan–Oct 1937 10-Month	13.93" (353.82mm)	15.97" (405.64mm)	-2.04" (-51.82mm)	27th Driest	Driest since: 1934	2002
Jan–Oct 1937 10-Month	13.93" (353.82mm)	15.97" (405.64mm)	-2.04" (-51.82mm)	102nd Wettest	Wettest since: 1936	1941
Dec 1936–Oct 1937 11-Month	15.12" (384.05mm)	17.04" (432.82mm)	-1.92" (-48.77mm)	30th Driest	Driest since: 1934	2002
	15.12" (384.05mm)	17.04" (432.82mm)	-1.92" (-48.77mm)	98th Wettest	Wettest since: 1936	1941
	Ties: 1900
Nov 1936–Oct 1937 12-Month	15.47" (392.94mm)	18.11" (459.99mm)	-2.64" (-67.05mm)	21st Driest	Driest since: 1934	2002
Nov 1936–Oct 1937 12-Month	15.47" (392.94mm)	18.11" (459.99mm)	-2.64" (-67.05mm)	107th Wettest	Wettest since: 1936	1941
May 1936–Oct 1937 18-Month	26.42" (671.07mm)	28.55" (725.17mm)	-2.13" (-54.10mm)	38th Driest	Driest since: 1935	1901
May 1936–Oct 1937 18-Month	26.42" (671.07mm)	28.55" (725.17mm)	-2.13" (-54.10mm)	90th Wettest	Wettest since: 1936	1942
Nov 1935–Oct 1937 24-Month	32.16" (816.86mm)	36.22" (919.99mm)	-4.06" (-103.13mm)	22nd Driest	Driest since: 1935	2003
Nov 1935–Oct 1937 24-Month	32.16" (816.86mm)	36.22" (919.99mm)	-4.06" (-103.13mm)	105th Wettest	Wettest since: 1936	1942
Nov 1934–Oct 1937 36-Month	50.47" (1,281.94mm)	54.28" (1,378.71mm)	-3.81" (-96.77mm)	33rd Driest	Driest since: 1936	1956
Nov 1934–Oct 1937 36-Month	50.47" (1,281.94mm)	54.28" (1,378.71mm)	-3.81" (-96.77mm)	93rd Wettest	Wettest since: 1931	1997
Nov 1933–Oct 1937 48-Month	63.41" (1,610.61mm)	72.32" (1,836.93mm)	-8.91" (-226.32mm)	10th Driest	Driest since: 1934	1956
Nov 1933–Oct 1937 48-Month	63.41" (1,610.61mm)	72.32" (1,836.93mm)	-8.91" (-226.32mm)	115th Wettest	Wettest since: 1936	1998
Nov 1932–Oct 1937 60-Month	79.62" (2,022.35mm)	90.35" (2,294.89mm)	-10.73" (-272.54mm)	10th Driest	Driest since: 1935	1956
Nov 1932–Oct 1937 60-Month	79.62" (2,022.35mm)	90.35" (2,294.89mm)	-10.73" (-272.54mm)	114th Wettest	Wettest since: 1936	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings