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 1979

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1979 1-Month	3.18" (80.77mm)	3.48" (88.39mm)	-0.30" (-7.62mm)	63rd Driest	Driest since: 1978	1985
April 1979 1-Month	3.18" (80.77mm)	3.48" (88.39mm)	-0.30" (-7.62mm)	66th Wettest	Wettest since: 1973	1983
Mar–Apr 1979 2-Month	6.18" (156.97mm)	7.26" (184.40mm)	-1.08" (-27.43mm)	38th Driest	Driest since: 1976	1915
	6.18" (156.97mm)	7.26" (184.40mm)	-1.08" (-27.43mm)	91st Wettest	Wettest since: 1978	1983
	Ties: 1905
Feb–Apr 1979 3-Month	11.69" (296.93mm)	10.15" (257.81mm)	1.54" (39.12mm)	99th Driest	Driest since: 1978	2006
Feb–Apr 1979 3-Month	11.69" (296.93mm)	10.15" (257.81mm)	1.54" (39.12mm)	30th Wettest	Wettest since: 1973	1983
Jan–Apr 1979 4-Month	18.99" (482.35mm)	13.51" (343.15mm)	5.48" (139.20mm)	125th Driest	Driest since: 1978	1985
Jan–Apr 1979 4-Month	18.99" (482.35mm)	13.51" (343.15mm)	5.48" (139.20mm)	4th Wettest	Wettest since: 1937	1998
Dec 1978–Apr 1979 5-Month	23.53" (597.66mm)	16.79" (426.47mm)	6.74" (171.19mm)	123rd Driest	Driest since: 1978	1985
Dec 1978–Apr 1979 5-Month	23.53" (597.66mm)	16.79" (426.47mm)	6.74" (171.19mm)	5th Wettest	Wettest since: 1958	1937
Nov 1978–Apr 1979 6-Month	26.62" (676.15mm)	19.78" (502.41mm)	6.84" (173.74mm)	121st Driest	Driest since: 1978	1977
Nov 1978–Apr 1979 6-Month	26.62" (676.15mm)	19.78" (502.41mm)	6.84" (173.74mm)	7th Wettest	Wettest since: 1973	1998
Oct 1978–Apr 1979 7-Month	28.04" (712.22mm)	22.91" (581.91mm)	5.13" (130.31mm)	110th Driest	Driest since: 1977	2002
Oct 1978–Apr 1979 7-Month	28.04" (712.22mm)	22.91" (581.91mm)	5.13" (130.31mm)	18th Wettest	Wettest since: 1978	1984
Sep 1978–Apr 1979 8-Month	29.40" (746.76mm)	26.46" (672.08mm)	2.94" (74.68mm)	95th Driest	Driest since: 1977	1931
Sep 1978–Apr 1979 8-Month	29.40" (746.76mm)	26.46" (672.08mm)	2.94" (74.68mm)	33rd Wettest	Wettest since: 1978	2019
Aug 1978–Apr 1979 9-Month	34.54" (877.32mm)	30.83" (783.08mm)	3.71" (94.24mm)	99th Driest	Driest since: 1977	1931
Aug 1978–Apr 1979 9-Month	34.54" (877.32mm)	30.83" (783.08mm)	3.71" (94.24mm)	29th Wettest	Wettest since: 1978	2019
Jul 1978–Apr 1979 10-Month	39.53" (1,004.06mm)	34.99" (888.75mm)	4.54" (115.31mm)	100th Driest	Driest since: 1978	1931
	39.53" (1,004.06mm)	34.99" (888.75mm)	4.54" (115.31mm)	28th Wettest	Wettest since: 1972	2019
	Ties: 1970
Jun 1978–Apr 1979 11-Month	42.72" (1,085.09mm)	38.83" (986.28mm)	3.89" (98.81mm)	94th Driest	Driest since: 1977	1931
Jun 1978–Apr 1979 11-Month	42.72" (1,085.09mm)	38.83" (986.28mm)	3.89" (98.81mm)	34th Wettest	Wettest since: 1978	2019
May 1978–Apr 1979 12-Month	48.74" (1,238.00mm)	42.55" (1,080.77mm)	6.19" (157.23mm)	107th Driest	Driest since: 1978	1931
May 1978–Apr 1979 12-Month	48.74" (1,238.00mm)	42.55" (1,080.77mm)	6.19" (157.23mm)	21st Wettest	Wettest since: 1976	2019
Nov 1977–Apr 1979 18-Month	74.45" (1,891.03mm)	62.30" (1,582.42mm)	12.15" (308.61mm)	117th Driest	Driest since: 1978	1931
Nov 1977–Apr 1979 18-Month	74.45" (1,891.03mm)	62.30" (1,582.42mm)	12.15" (308.61mm)	10th Wettest	Wettest since: 1973	2004
May 1977–Apr 1979 24-Month	93.86" (2,384.04mm)	85.06" (2,160.52mm)	8.80" (223.52mm)	105th Driest	Driest since: 1978	1931
May 1977–Apr 1979 24-Month	93.86" (2,384.04mm)	85.06" (2,160.52mm)	8.80" (223.52mm)	22nd Wettest	Wettest since: 1974	2019
May 1976–Apr 1979 36-Month	133.42" (3,388.87mm)	127.66" (3,242.56mm)	5.76" (146.31mm)	84th Driest	Driest since: 1977	1967
May 1976–Apr 1979 36-Month	133.42" (3,388.87mm)	127.66" (3,242.56mm)	5.76" (146.31mm)	42nd Wettest	Wettest since: 1978	2021
May 1975–Apr 1979 48-Month	182.38" (4,632.45mm)	170.21" (4,323.33mm)	12.17" (309.12mm)	99th Driest	Driest since: 1978	1968
May 1975–Apr 1979 48-Month	182.38" (4,632.45mm)	170.21" (4,323.33mm)	12.17" (309.12mm)	26th Wettest	Wettest since: 1976	2021
May 1974–Apr 1979 60-Month	225.89" (5,737.61mm)	212.58" (5,399.53mm)	13.31" (338.08mm)	96th Driest	Driest since: 1978	1967
May 1974–Apr 1979 60-Month	225.89" (5,737.61mm)	212.58" (5,399.53mm)	13.31" (338.08mm)	28th Wettest	Wettest since: 1977	2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings