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 1970

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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 1970 1-Month	4.67" (118.62mm)	3.48" (88.39mm)	1.19" (30.23mm)	105th Driest	Driest since: 1969	1985
April 1970 1-Month	4.67" (118.62mm)	3.48" (88.39mm)	1.19" (30.23mm)	24th Wettest	Wettest since: 1964	1983
Mar–Apr 1970 2-Month	8.50" (215.90mm)	7.26" (184.40mm)	1.24" (31.50mm)	100th Driest	Driest since: 1969	1915
Mar–Apr 1970 2-Month	8.50" (215.90mm)	7.26" (184.40mm)	1.24" (31.50mm)	29th Wettest	Wettest since: 1961	1983
Feb–Apr 1970 3-Month	11.18" (283.97mm)	10.15" (257.81mm)	1.03" (26.16mm)	89th Driest	Driest since: 1969	2006
Feb–Apr 1970 3-Month	11.18" (283.97mm)	10.15" (257.81mm)	1.03" (26.16mm)	40th Wettest	Wettest since: 1964	1983
Jan–Apr 1970 4-Month	12.64" (321.06mm)	13.51" (343.15mm)	-0.87" (-22.09mm)	57th Driest	Driest since: 1969	1985
	12.64" (321.06mm)	13.51" (343.15mm)	-0.87" (-22.09mm)	72nd Wettest	Wettest since: 1966	1998
	Ties: 1971, 1990
Dec 1969–Apr 1970 5-Month	19.58" (497.33mm)	16.79" (426.47mm)	2.79" (70.86mm)	106th Driest	Driest since: 1969	1985
Dec 1969–Apr 1970 5-Month	19.58" (497.33mm)	16.79" (426.47mm)	2.79" (70.86mm)	22nd Wettest	Wettest since: 1958	1937
Nov 1969–Apr 1970 6-Month	21.82" (554.23mm)	19.78" (502.41mm)	2.04" (51.82mm)	94th Driest	Driest since: 1969	1977
Nov 1969–Apr 1970 6-Month	21.82" (554.23mm)	19.78" (502.41mm)	2.04" (51.82mm)	34th Wettest	Wettest since: 1964	1998
Oct 1969–Apr 1970 7-Month	23.23" (590.04mm)	22.91" (581.91mm)	0.32" (8.13mm)	73rd Driest	Driest since: 1969	2002
Oct 1969–Apr 1970 7-Month	23.23" (590.04mm)	22.91" (581.91mm)	0.32" (8.13mm)	55th Wettest	Wettest since: 1964	1984
Sep 1969–Apr 1970 8-Month	26.46" (672.08mm)	26.46" (672.08mm)	0.00" (0.00mm)	71st Driest	Driest since: 1969	1931
Sep 1969–Apr 1970 8-Month	26.46" (672.08mm)	26.46" (672.08mm)	0.00" (0.00mm)	57th Wettest	Wettest since: 1964	2019
Aug 1969–Apr 1970 9-Month	32.67" (829.82mm)	30.83" (783.08mm)	1.84" (46.74mm)	83rd Driest	Driest since: 1969	1931
Aug 1969–Apr 1970 9-Month	32.67" (829.82mm)	30.83" (783.08mm)	1.84" (46.74mm)	45th Wettest	Wettest since: 1961	2019
Jul 1969–Apr 1970 10-Month	39.53" (1,004.06mm)	34.99" (888.75mm)	4.54" (115.31mm)	100th Driest	Driest since: 1969	1931
	39.53" (1,004.06mm)	34.99" (888.75mm)	4.54" (115.31mm)	28th Wettest	Wettest since: 1961	2019
	Ties: 1979
Jun 1969–Apr 1970 11-Month	42.32" (1,074.93mm)	38.83" (986.28mm)	3.49" (88.65mm)	89th Driest	Driest since: 1969	1931
Jun 1969–Apr 1970 11-Month	42.32" (1,074.93mm)	38.83" (986.28mm)	3.49" (88.65mm)	39th Wettest	Wettest since: 1961	2019
May 1969–Apr 1970 12-Month	44.49" (1,130.05mm)	42.55" (1,080.77mm)	1.94" (49.28mm)	82nd Driest	Driest since: 1969	1931
May 1969–Apr 1970 12-Month	44.49" (1,130.05mm)	42.55" (1,080.77mm)	1.94" (49.28mm)	46th Wettest	Wettest since: 1961	2019
Nov 1968–Apr 1970 18-Month	59.79" (1,518.67mm)	62.30" (1,582.42mm)	-2.51" (-63.75mm)	45th Driest	Driest since: 1969	1931
Nov 1968–Apr 1970 18-Month	59.79" (1,518.67mm)	62.30" (1,582.42mm)	-2.51" (-63.75mm)	82nd Wettest	Wettest since: 1964	2004
May 1968–Apr 1970 24-Month	80.73" (2,050.54mm)	85.06" (2,160.52mm)	-4.33" (-109.98mm)	34th Driest	Driest since: 1969	1931
May 1968–Apr 1970 24-Month	80.73" (2,050.54mm)	85.06" (2,160.52mm)	-4.33" (-109.98mm)	93rd Wettest	Wettest since: 1962	2019
May 1967–Apr 1970 36-Month	121.84" (3,094.74mm)	127.66" (3,242.56mm)	-5.82" (-147.82mm)	30th Driest	Driest since: 1969	1967
May 1967–Apr 1970 36-Month	121.84" (3,094.74mm)	127.66" (3,242.56mm)	-5.82" (-147.82mm)	96th Wettest	Wettest since: 1963	2021
May 1966–Apr 1970 48-Month	156.08" (3,964.43mm)	170.21" (4,323.33mm)	-14.13" (-358.90mm)	11th Driest	Driest since: 1969	1968
May 1966–Apr 1970 48-Month	156.08" (3,964.43mm)	170.21" (4,323.33mm)	-14.13" (-358.90mm)	114th Wettest	Wettest since: 1964	2021
May 1965–Apr 1970 60-Month	187.85" (4,771.39mm)	212.58" (5,399.53mm)	-24.73" (-628.14mm)	5th Driest	Driest since: 1969	1967
May 1965–Apr 1970 60-Month	187.85" (4,771.39mm)	212.58" (5,399.53mm)	-24.73" (-628.14mm)	119th Wettest	Wettest since: 1965	2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings