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.

Maryland

Precipitation Rankings, April 1975

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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
April 1975 1-Month	3.15" (80.01mm)	3.48" (88.39mm)	-0.33" (-8.38mm)	61st Driest	Driest since: 1974	1985
	3.15" (80.01mm)	3.48" (88.39mm)	-0.33" (-8.38mm)	68th Wettest	Wettest since: 1973	1983
	Ties: 1921
Mar–Apr 1975 2-Month	8.48" (215.39mm)	7.26" (184.40mm)	1.22" (30.99mm)	99th Driest	Driest since: 1974	1915
Mar–Apr 1975 2-Month	8.48" (215.39mm)	7.26" (184.40mm)	1.22" (30.99mm)	30th Wettest	Wettest since: 1973	1983
Feb–Apr 1975 3-Month	11.19" (284.23mm)	10.15" (257.81mm)	1.04" (26.42mm)	91st Driest	Driest since: 1974	2006
	11.19" (284.23mm)	10.15" (257.81mm)	1.04" (26.42mm)	38th Wettest	Wettest since: 1973	1983
	Ties: 1896
Jan–Apr 1975 4-Month	15.31" (388.87mm)	13.51" (343.15mm)	1.80" (45.72mm)	102nd Driest	Driest since: 1974	1985
	15.31" (388.87mm)	13.51" (343.15mm)	1.80" (45.72mm)	27th Wettest	Wettest since: 1972	1998
	Ties: 1999
Dec 1974–Apr 1975 5-Month	20.47" (519.94mm)	16.79" (426.47mm)	3.68" (93.47mm)	111th Driest	Driest since: 1974	1985
Dec 1974–Apr 1975 5-Month	20.47" (519.94mm)	16.79" (426.47mm)	3.68" (93.47mm)	17th Wettest	Wettest since: 1973	1937
Nov 1974–Apr 1975 6-Month	22.04" (559.82mm)	19.78" (502.41mm)	2.26" (57.41mm)	95th Driest	Driest since: 1974	1977
Nov 1974–Apr 1975 6-Month	22.04" (559.82mm)	19.78" (502.41mm)	2.26" (57.41mm)	33rd Wettest	Wettest since: 1973	1998
Oct 1974–Apr 1975 7-Month	23.33" (592.58mm)	22.91" (581.91mm)	0.42" (10.67mm)	74th Driest	Driest since: 1974	2002
Oct 1974–Apr 1975 7-Month	23.33" (592.58mm)	22.91" (581.91mm)	0.42" (10.67mm)	54th Wettest	Wettest since: 1973	1984
Sep 1974–Apr 1975 8-Month	28.19" (716.03mm)	26.46" (672.08mm)	1.73" (43.95mm)	87th Driest	Driest since: 1974	1931
Sep 1974–Apr 1975 8-Month	28.19" (716.03mm)	26.46" (672.08mm)	1.73" (43.95mm)	41st Wettest	Wettest since: 1973	2019
Aug 1974–Apr 1975 9-Month	33.01" (838.45mm)	30.83" (783.08mm)	2.18" (55.37mm)	84th Driest	Driest since: 1974	1931
Aug 1974–Apr 1975 9-Month	33.01" (838.45mm)	30.83" (783.08mm)	2.18" (55.37mm)	44th Wettest	Wettest since: 1973	2019
Jul 1974–Apr 1975 10-Month	34.74" (882.40mm)	34.99" (888.75mm)	-0.25" (-6.35mm)	63rd Driest	Driest since: 1974	1931
Jul 1974–Apr 1975 10-Month	34.74" (882.40mm)	34.99" (888.75mm)	-0.25" (-6.35mm)	65th Wettest	Wettest since: 1973	2019
Jun 1974–Apr 1975 11-Month	39.22" (996.19mm)	38.83" (986.28mm)	0.39" (9.91mm)	68th Driest	Driest since: 1974	1931
Jun 1974–Apr 1975 11-Month	39.22" (996.19mm)	38.83" (986.28mm)	0.39" (9.91mm)	60th Wettest	Wettest since: 1973	2019
May 1974–Apr 1975 12-Month	43.51" (1,105.15mm)	42.55" (1,080.77mm)	0.96" (24.38mm)	71st Driest	Driest since: 1974	1931
May 1974–Apr 1975 12-Month	43.51" (1,105.15mm)	42.55" (1,080.77mm)	0.96" (24.38mm)	57th Wettest	Wettest since: 1973	2019
Nov 1973–Apr 1975 18-Month	62.67" (1,591.82mm)	62.30" (1,582.42mm)	0.37" (9.40mm)	64th Driest	Driest since: 1971	1931
Nov 1973–Apr 1975 18-Month	62.67" (1,591.82mm)	62.30" (1,582.42mm)	0.37" (9.40mm)	63rd Wettest	Wettest since: 1974	2004
May 1973–Apr 1975 24-Month	84.60" (2,148.84mm)	85.06" (2,160.52mm)	-0.46" (-11.68mm)	56th Driest	Driest since: 1970	1931
May 1973–Apr 1975 24-Month	84.60" (2,148.84mm)	85.06" (2,160.52mm)	-0.46" (-11.68mm)	71st Wettest	Wettest since: 1974	2019
May 1972–Apr 1975 36-Month	139.65" (3,547.11mm)	127.66" (3,242.56mm)	11.99" (304.55mm)	108th Driest	Driest since: 1972	1967
May 1972–Apr 1975 36-Month	139.65" (3,547.11mm)	127.66" (3,242.56mm)	11.99" (304.55mm)	18th Wettest	Wettest since: 1974	2021
May 1971–Apr 1975 48-Month	192.76" (4,896.10mm)	170.21" (4,323.33mm)	22.55" (572.77mm)	118th Driest	Driest since: 1974	1968
May 1971–Apr 1975 48-Month	192.76" (4,896.10mm)	170.21" (4,323.33mm)	22.55" (572.77mm)	7th Wettest	Wettest since: 1973	2021
May 1970–Apr 1975 60-Month	233.36" (5,927.34mm)	212.58" (5,399.53mm)	20.78" (527.81mm)	108th Driest	Driest since: 1973	1967
May 1970–Apr 1975 60-Month	233.36" (5,927.34mm)	212.58" (5,399.53mm)	20.78" (527.81mm)	16th Wettest	Wettest since: 1974	2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings