National Rankings

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Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Precipitation Rankings, March 1978

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Record Driest
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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Wettest/Driest Since	Record
March 1978 1-Month	2.26" (57.40mm)	2.51" (63.75mm)	-0.25" (-6.35mm)	39th Driest	Driest since: 1972	1910
March 1978 1-Month	2.26" (57.40mm)	2.51" (63.75mm)	-0.25" (-6.35mm)	91st Wettest	Wettest since: 1977	1973
Feb–Mar 1978 2-Month	4.03" (102.36mm)	4.64" (117.86mm)	-0.61" (-15.50mm)	22nd Driest	Driest since: 1972	1910
Feb–Mar 1978 2-Month	4.03" (102.36mm)	4.64" (117.86mm)	-0.61" (-15.50mm)	108th Wettest	Wettest since: 1977	1998
Jan–Mar 1978 3-Month	7.21" (183.13mm)	6.96" (176.78mm)	0.25" (6.35mm)	83rd Driest	Driest since: 1977	1910
	7.21" (183.13mm)	6.96" (176.78mm)	0.25" (6.35mm)	47th Wettest	Wettest since: 1975	1998
	Ties: 1951
Dec 1977–Mar 1978 4-Month	9.93" (252.22mm)	9.30" (236.22mm)	0.63" (16.00mm)	96th Driest	Driest since: 1977	1981
Dec 1977–Mar 1978 4-Month	9.93" (252.22mm)	9.30" (236.22mm)	0.63" (16.00mm)	33rd Wettest	Wettest since: 1975	1983, 1998
Nov 1977–Mar 1978 5-Month	12.79" (324.87mm)	11.53" (292.86mm)	1.26" (32.01mm)	109th Driest	Driest since: 1977	1977
Nov 1977–Mar 1978 5-Month	12.79" (324.87mm)	11.53" (292.86mm)	1.26" (32.01mm)	20th Wettest	Wettest since: 1975	1983
Oct 1977–Mar 1978 6-Month	14.98" (380.49mm)	13.70" (347.98mm)	1.28" (32.51mm)	103rd Driest	Driest since: 1977	1918
Oct 1977–Mar 1978 6-Month	14.98" (380.49mm)	13.70" (347.98mm)	1.28" (32.51mm)	26th Wettest	Wettest since: 1975	1983
Sep 1977–Mar 1978 7-Month	18.20" (462.28mm)	16.19" (411.23mm)	2.01" (51.05mm)	111th Driest	Driest since: 1977	1918
Sep 1977–Mar 1978 7-Month	18.20" (462.28mm)	16.19" (411.23mm)	2.01" (51.05mm)	18th Wettest	Wettest since: 1974	2019
Aug 1977–Mar 1978 8-Month	21.75" (552.45mm)	18.82" (478.03mm)	2.93" (74.42mm)	123rd Driest	Driest since: 1977	1918
Aug 1977–Mar 1978 8-Month	21.75" (552.45mm)	18.82" (478.03mm)	2.93" (74.42mm)	6th Wettest	Wettest since: 1973	2019
Jul 1977–Mar 1978 9-Month	24.31" (617.47mm)	21.60" (548.64mm)	2.71" (68.83mm)	118th Driest	Driest since: 1977	1918
Jul 1977–Mar 1978 9-Month	24.31" (617.47mm)	21.60" (548.64mm)	2.71" (68.83mm)	11th Wettest	Wettest since: 1974	2019
Jun 1977–Mar 1978 10-Month	26.80" (680.72mm)	24.53" (623.06mm)	2.27" (57.66mm)	111th Driest	Driest since: 1977	1918
Jun 1977–Mar 1978 10-Month	26.80" (680.72mm)	24.53" (623.06mm)	2.27" (57.66mm)	18th Wettest	Wettest since: 1974	2019
May 1977–Mar 1978 11-Month	29.47" (748.54mm)	27.43" (696.72mm)	2.04" (51.82mm)	107th Driest	Driest since: 1977	1918
May 1977–Mar 1978 11-Month	29.47" (748.54mm)	27.43" (696.72mm)	2.04" (51.82mm)	22nd Wettest	Wettest since: 1974	2019
Apr 1977–Mar 1978 12-Month	31.74" (806.20mm)	29.96" (760.98mm)	1.78" (45.22mm)	102nd Driest	Driest since: 1977	1918
Apr 1977–Mar 1978 12-Month	31.74" (806.20mm)	29.96" (760.98mm)	1.78" (45.22mm)	27th Wettest	Wettest since: 1975	2016
Oct 1976–Mar 1978 18-Month	42.56" (1,081.02mm)	43.68" (1,109.47mm)	-1.12" (-28.45mm)	40th Driest	Driest since: 1977	1918
Oct 1976–Mar 1978 18-Month	42.56" (1,081.02mm)	43.68" (1,109.47mm)	-1.12" (-28.45mm)	88th Wettest	Wettest since: 1976	2020
Apr 1976–Mar 1978 24-Month	57.74" (1,466.60mm)	59.92" (1,521.97mm)	-2.18" (-55.37mm)	31st Driest	Driest since: 1977	1955
Apr 1976–Mar 1978 24-Month	57.74" (1,466.60mm)	59.92" (1,521.97mm)	-2.18" (-55.37mm)	97th Wettest	Wettest since: 1976	2020
Apr 1975–Mar 1978 36-Month	88.37" (2,244.60mm)	89.87" (2,282.70mm)	-1.50" (-38.10mm)	45th Driest	Driest since: 1969	1955
Apr 1975–Mar 1978 36-Month	88.37" (2,244.60mm)	89.87" (2,282.70mm)	-1.50" (-38.10mm)	82nd Wettest	Wettest since: 1977	2020
Apr 1974–Mar 1978 48-Month	120.15" (3,051.81mm)	119.76" (3,041.90mm)	0.39" (9.91mm)	60th Driest	Driest since: 1970	1957
Apr 1974–Mar 1978 48-Month	120.15" (3,051.81mm)	119.76" (3,041.90mm)	0.39" (9.91mm)	66th Wettest	Wettest since: 1977	2019
Apr 1973–Mar 1978 60-Month	154.13" (3,914.90mm)	149.62" (3,800.35mm)	4.51" (114.55mm)	91st Driest	Driest since: 1972	1957
Apr 1973–Mar 1978 60-Month	154.13" (3,914.90mm)	149.62" (3,800.35mm)	4.51" (114.55mm)	34th Wettest	Wettest since: 1977	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published May 2023, retrieved on June 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings