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 1938

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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 1938 1-Month	2.55" (64.77mm)	2.02" (51.31mm)	0.53" (13.46mm)	97th Driest	Driest since: 1937	1974
May 1938 1-Month	2.55" (64.77mm)	2.02" (51.31mm)	0.53" (13.46mm)	32nd Wettest	Wettest since: 1935	2015
Apr–May 1938 2-Month	4.78" (121.41mm)	3.86" (98.04mm)	0.92" (23.37mm)	107th Driest	Driest since: 1937	2002
Apr–May 1938 2-Month	4.78" (121.41mm)	3.86" (98.04mm)	0.92" (23.37mm)	22nd Wettest	Wettest since: 1935	1957
Mar–May 1938 3-Month	7.57" (192.28mm)	5.37" (136.40mm)	2.20" (55.88mm)	118th Driest	Driest since: 1937	2002
Mar–May 1938 3-Month	7.57" (192.28mm)	5.37" (136.40mm)	2.20" (55.88mm)	11th Wettest	Wettest since: 1935	1957
Feb–May 1938 4-Month	8.74" (222.00mm)	6.46" (164.08mm)	2.28" (57.92mm)	119th Driest	Driest since: 1937	2002
Feb–May 1938 4-Month	8.74" (222.00mm)	6.46" (164.08mm)	2.28" (57.92mm)	10th Wettest	Wettest since: 1915	1905
Jan–May 1938 5-Month	9.79" (248.67mm)	7.52" (191.01mm)	2.27" (57.66mm)	118th Driest	Driest since: 1937	2002
Jan–May 1938 5-Month	9.79" (248.67mm)	7.52" (191.01mm)	2.27" (57.66mm)	11th Wettest	Wettest since: 1915	1957
Dec 1937–May 1938 6-Month	11.23" (285.24mm)	8.60" (218.44mm)	2.63" (66.80mm)	118th Driest	Driest since: 1937	2002
Dec 1937–May 1938 6-Month	11.23" (285.24mm)	8.60" (218.44mm)	2.63" (66.80mm)	10th Wettest	Wettest since: 1914	1957
Nov 1937–May 1938 7-Month	12.09" (307.09mm)	9.66" (245.36mm)	2.43" (61.73mm)	115th Driest	Driest since: 1937	2002
Nov 1937–May 1938 7-Month	12.09" (307.09mm)	9.66" (245.36mm)	2.43" (61.73mm)	13th Wettest	Wettest since: 1914	1957
Oct 1937–May 1938 8-Month	13.09" (332.49mm)	11.00" (279.40mm)	2.09" (53.09mm)	106th Driest	Driest since: 1937	2002
Oct 1937–May 1938 8-Month	13.09" (332.49mm)	11.00" (279.40mm)	2.09" (53.09mm)	22nd Wettest	Wettest since: 1920	1995
Sep 1937–May 1938 9-Month	14.34" (364.24mm)	12.43" (315.72mm)	1.91" (48.52mm)	106th Driest	Driest since: 1937	2002
Sep 1937–May 1938 9-Month	14.34" (364.24mm)	12.43" (315.72mm)	1.91" (48.52mm)	22nd Wettest	Wettest since: 1920	1942
Aug 1937–May 1938 10-Month	15.87" (403.10mm)	14.44" (366.78mm)	1.43" (36.32mm)	94th Driest	Driest since: 1937	2002
Aug 1937–May 1938 10-Month	15.87" (403.10mm)	14.44" (366.78mm)	1.43" (36.32mm)	34th Wettest	Wettest since: 1926	1942
Jul 1937–May 1938 11-Month	17.76" (451.10mm)	16.54" (420.12mm)	1.22" (30.98mm)	86th Driest	Driest since: 1937	2002
Jul 1937–May 1938 11-Month	17.76" (451.10mm)	16.54" (420.12mm)	1.22" (30.98mm)	42nd Wettest	Wettest since: 1930	1942
Jun 1937–May 1938 12-Month	19.60" (497.84mm)	18.08" (459.23mm)	1.52" (38.61mm)	91st Driest	Driest since: 1937	2002
Jun 1937–May 1938 12-Month	19.60" (497.84mm)	18.08" (459.23mm)	1.52" (38.61mm)	37th Wettest	Wettest since: 1928	1942
Dec 1936–May 1938 18-Month	27.21" (691.13mm)	26.70" (678.18mm)	0.51" (12.95mm)	73rd Driest	Driest since: 1937	2013
Dec 1936–May 1938 18-Month	27.21" (691.13mm)	26.70" (678.18mm)	0.51" (12.95mm)	54th Wettest	Wettest since: 1928	1942
Jun 1936–May 1938 24-Month	36.73" (932.94mm)	36.18" (918.97mm)	0.55" (13.97mm)	76th Driest	Driest since: 1937	1902
Jun 1936–May 1938 24-Month	36.73" (932.94mm)	36.18" (918.97mm)	0.55" (13.97mm)	51st Wettest	Wettest since: 1929	1942
Jun 1935–May 1938 36-Month	51.36" (1,304.54mm)	54.21" (1,376.93mm)	-2.85" (-72.39mm)	36th Driest	Driest since: 1937	2022
Jun 1935–May 1938 36-Month	51.36" (1,304.54mm)	54.21" (1,376.93mm)	-2.85" (-72.39mm)	90th Wettest	Wettest since: 1932	1943
Jun 1934–May 1938 48-Month	67.74" (1,720.60mm)	72.23" (1,834.64mm)	-4.49" (-114.04mm)	29th Driest	Driest since: 1937	1956
Jun 1934–May 1938 48-Month	67.74" (1,720.60mm)	72.23" (1,834.64mm)	-4.49" (-114.04mm)	96th Wettest	Wettest since: 1933	1944
Jun 1933–May 1938 60-Month	83.13" (2,111.50mm)	90.24" (2,292.10mm)	-7.11" (-180.60mm)	21st Driest	Driest since: 1937	2022
Jun 1933–May 1938 60-Month	83.13" (2,111.50mm)	90.24" (2,292.10mm)	-7.11" (-180.60mm)	103rd Wettest	Wettest since: 1934	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings