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, August 1940

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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
August 1940 1-Month	1.50" (38.10mm)	2.03" (51.56mm)	-0.53" (-13.46mm)	30th Driest	Driest since: 1939	1960
August 1940 1-Month	1.50" (38.10mm)	2.03" (51.56mm)	-0.53" (-13.46mm)	99th Wettest	Wettest since: 1938	1997
Jul–Aug 1940 2-Month	3.15" (80.01mm)	4.13" (104.90mm)	-0.98" (-24.89mm)	18th Driest	Driest since: 1939	1900
Jul–Aug 1940 2-Month	3.15" (80.01mm)	4.13" (104.90mm)	-0.98" (-24.89mm)	111th Wettest	Wettest since: 1938	1923
Jun–Aug 1940 3-Month	3.95" (100.33mm)	5.67" (144.02mm)	-1.72" (-43.69mm)	11th Driest	Driest since: 1939	1924
Jun–Aug 1940 3-Month	3.95" (100.33mm)	5.67" (144.02mm)	-1.72" (-43.69mm)	118th Wettest	Wettest since: 1938	1965
May–Aug 1940 4-Month	5.73" (145.54mm)	7.69" (195.33mm)	-1.96" (-49.79mm)	12th Driest	Driest since: 1939	2002
May–Aug 1940 4-Month	5.73" (145.54mm)	7.69" (195.33mm)	-1.96" (-49.79mm)	117th Wettest	Wettest since: 1938	1957
Apr–Aug 1940 5-Month	7.57" (192.28mm)	9.53" (242.06mm)	-1.96" (-49.78mm)	17th Driest	Driest since: 1939	2002
Apr–Aug 1940 5-Month	7.57" (192.28mm)	9.53" (242.06mm)	-1.96" (-49.78mm)	112th Wettest	Wettest since: 1938	1957
Mar–Aug 1940 6-Month	9.01" (228.85mm)	11.04" (280.42mm)	-2.03" (-51.57mm)	23rd Driest	Driest since: 1939	2002
Mar–Aug 1940 6-Month	9.01" (228.85mm)	11.04" (280.42mm)	-2.03" (-51.57mm)	106th Wettest	Wettest since: 1938	1957
Feb–Aug 1940 7-Month	10.49" (266.45mm)	12.13" (308.10mm)	-1.64" (-41.65mm)	29th Driest	Driest since: 1939	2002
Feb–Aug 1940 7-Month	10.49" (266.45mm)	12.13" (308.10mm)	-1.64" (-41.65mm)	100th Wettest	Wettest since: 1938	1957
Jan–Aug 1940 8-Month	12.29" (312.17mm)	13.20" (335.28mm)	-0.91" (-23.11mm)	43rd Driest	Driest since: 1939	2002
Jan–Aug 1940 8-Month	12.29" (312.17mm)	13.20" (335.28mm)	-0.91" (-23.11mm)	86th Wettest	Wettest since: 1938	1957
Dec 1939–Aug 1940 9-Month	12.91" (327.91mm)	14.27" (362.46mm)	-1.36" (-34.55mm)	36th Driest	Driest since: 1939	2002
Dec 1939–Aug 1940 9-Month	12.91" (327.91mm)	14.27" (362.46mm)	-1.36" (-34.55mm)	92nd Wettest	Wettest since: 1938	1957
Nov 1939–Aug 1940 10-Month	13.22" (335.79mm)	15.34" (389.64mm)	-2.12" (-53.85mm)	24th Driest	Driest since: 1939	2002
	13.22" (335.79mm)	15.34" (389.64mm)	-2.12" (-53.85mm)	104th Wettest	Wettest since: 1938	1957
	Ties: 1937
Oct 1939–Aug 1940 11-Month	13.88" (352.55mm)	16.67" (423.42mm)	-2.79" (-70.87mm)	19th Driest	Driest since: 1939	2002
Oct 1939–Aug 1940 11-Month	13.88" (352.55mm)	16.67" (423.42mm)	-2.79" (-70.87mm)	109th Wettest	Wettest since: 1938	1957
Sep 1939–Aug 1940 12-Month	15.26" (387.60mm)	18.10" (459.74mm)	-2.84" (-72.14mm)	17th Driest	Driest since: 1934	2002
Sep 1939–Aug 1940 12-Month	15.26" (387.60mm)	18.10" (459.74mm)	-2.84" (-72.14mm)	111th Wettest	Wettest since: 1939	1941
Mar 1939–Aug 1940 18-Month	21.68" (550.67mm)	29.15" (740.41mm)	-7.47" (-189.74mm)	2nd Driest	Driest to Date	2002
Mar 1939–Aug 1940 18-Month	21.68" (550.67mm)	29.15" (740.41mm)	-7.47" (-189.74mm)	126th Wettest	Wettest since: 1939	1942
Sep 1938–Aug 1940 24-Month	31.01" (787.65mm)	36.21" (919.73mm)	-5.20" (-132.08mm)	15th Driest	Driest since: 1935	2003
Sep 1938–Aug 1940 24-Month	31.01" (787.65mm)	36.21" (919.73mm)	-5.20" (-132.08mm)	112th Wettest	Wettest since: 1939	1942
Sep 1937–Aug 1940 36-Month	50.40" (1,280.16mm)	54.26" (1,378.20mm)	-3.86" (-98.04mm)	28th Driest	Driest since: 1937	2002
Sep 1937–Aug 1940 36-Month	50.40" (1,280.16mm)	54.26" (1,378.20mm)	-3.86" (-98.04mm)	98th Wettest	Wettest since: 1939	1943
Sep 1936–Aug 1940 48-Month	66.58" (1,691.13mm)	72.29" (1,836.17mm)	-5.71" (-145.04mm)	23rd Driest	Driest since: 1937	1956
Sep 1936–Aug 1940 48-Month	66.58" (1,691.13mm)	72.29" (1,836.17mm)	-5.71" (-145.04mm)	102nd Wettest	Wettest since: 1939	1944
Sep 1935–Aug 1940 60-Month	83.22" (2,113.79mm)	90.31" (2,293.87mm)	-7.09" (-180.08mm)	20th Driest	Driest since: 1938	2004
Sep 1935–Aug 1940 60-Month	83.22" (2,113.79mm)	90.31" (2,293.87mm)	-7.09" (-180.08mm)	104th Wettest	Wettest since: 1939	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