National Rankings

Parameter:

Year:

Month:

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, April 1977

View Period (Months):

All

Download:

Record Driest

Bottom 1/10

Bottom 1/3

Normal

Top 1/3

Top 1/10

Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1977 1-Month	2.27" (57.66mm)	2.52" (64.01mm)	-0.25" (-6.35mm)	40th Driest	Driest since: 1972	1987
April 1977 1-Month	2.27" (57.66mm)	2.52" (64.01mm)	-0.25" (-6.35mm)	89th Wettest	Wettest since: 1976	1957
Mar–Apr 1977 2-Month	5.37" (136.40mm)	5.03" (127.76mm)	0.34" (8.64mm)	92nd Driest	Driest since: 1976	1910
Mar–Apr 1977 2-Month	5.37" (136.40mm)	5.03" (127.76mm)	0.34" (8.64mm)	37th Wettest	Wettest since: 1975	1973
Feb–Apr 1977 3-Month	6.60" (167.64mm)	7.16" (181.86mm)	-0.56" (-14.22mm)	33rd Driest	Driest since: 1972	1910
	6.60" (167.64mm)	7.16" (181.86mm)	-0.56" (-14.22mm)	96th Wettest	Wettest since: 1976	1983
	Ties: 1915
Jan–Apr 1977 4-Month	8.18" (207.77mm)	9.48" (240.79mm)	-1.30" (-33.02mm)	11th Driest	Driest since: 1967	1910
	8.18" (207.77mm)	9.48" (240.79mm)	-1.30" (-33.02mm)	118th Wettest	Wettest since: 1976	1998
	Ties: 2002
Dec 1976–Apr 1977 5-Month	9.54" (242.32mm)	11.82" (300.23mm)	-2.28" (-57.91mm)	3rd Driest	Driest since: 1931	1931
Dec 1976–Apr 1977 5-Month	9.54" (242.32mm)	11.82" (300.23mm)	-2.28" (-57.91mm)	125th Wettest	Wettest since: 1976	1983
Nov 1976–Apr 1977 6-Month	10.65" (270.51mm)	14.05" (356.87mm)	-3.40" (-86.36mm)	1st Driest	Driest since: 1977	1977
Nov 1976–Apr 1977 6-Month	10.65" (270.51mm)	14.05" (356.87mm)	-3.40" (-86.36mm)	127th Wettest	Wettest since: 1976	1983
Oct 1976–Apr 1977 7-Month	13.09" (332.49mm)	16.22" (411.99mm)	-3.13" (-79.50mm)	4th Driest	Driest since: 1934	1981
Oct 1976–Apr 1977 7-Month	13.09" (332.49mm)	16.22" (411.99mm)	-3.13" (-79.50mm)	124th Wettest	Wettest since: 1976	1983
Sep 1976–Apr 1977 8-Month	15.54" (394.72mm)	18.71" (475.23mm)	-3.17" (-80.51mm)	3rd Driest	Driest since: 1934	1918
	15.54" (394.72mm)	18.71" (475.23mm)	-3.17" (-80.51mm)	125th Wettest	Wettest since: 1976	2019
	Ties: 1981
Aug 1976–Apr 1977 9-Month	17.54" (445.52mm)	21.33" (541.78mm)	-3.79" (-96.26mm)	2nd Driest	Driest since: 1918	1918
Aug 1976–Apr 1977 9-Month	17.54" (445.52mm)	21.33" (541.78mm)	-3.79" (-96.26mm)	126th Wettest	Wettest since: 1976	2019
Jul 1976–Apr 1977 10-Month	20.28" (515.11mm)	24.12" (612.65mm)	-3.84" (-97.54mm)	4th Driest	Driest since: 1931	1931
Jul 1976–Apr 1977 10-Month	20.28" (515.11mm)	24.12" (612.65mm)	-3.84" (-97.54mm)	124th Wettest	Wettest since: 1976	2019
Jun 1976–Apr 1977 11-Month	23.05" (585.47mm)	27.04" (686.82mm)	-3.99" (-101.35mm)	5th Driest	Driest since: 1934	1931
Jun 1976–Apr 1977 11-Month	23.05" (585.47mm)	27.04" (686.82mm)	-3.99" (-101.35mm)	123rd Wettest	Wettest since: 1976	2019
May 1976–Apr 1977 12-Month	25.98" (659.89mm)	29.95" (760.73mm)	-3.97" (-100.84mm)	7th Driest	Driest since: 1955	1918
May 1976–Apr 1977 12-Month	25.98" (659.89mm)	29.95" (760.73mm)	-3.97" (-100.84mm)	121st Wettest	Wettest since: 1976	2019
Nov 1975–Apr 1977 18-Month	38.88" (987.55mm)	44.02" (1,118.11mm)	-5.14" (-130.56mm)	4th Driest	Driest since: 1955	1931
Nov 1975–Apr 1977 18-Month	38.88" (987.55mm)	44.02" (1,118.11mm)	-5.14" (-130.56mm)	123rd Wettest	Wettest since: 1976	2020
May 1975–Apr 1977 24-Month	56.23" (1,428.24mm)	59.92" (1,521.97mm)	-3.69" (-93.73mm)	18th Driest	Driest since: 1964	1955
May 1975–Apr 1977 24-Month	56.23" (1,428.24mm)	59.92" (1,521.97mm)	-3.69" (-93.73mm)	109th Wettest	Wettest since: 1976	2020
May 1974–Apr 1977 36-Month	88.13" (2,238.50mm)	89.88" (2,282.95mm)	-1.75" (-44.45mm)	40th Driest	Driest since: 1968	1955
May 1974–Apr 1977 36-Month	88.13" (2,238.50mm)	89.88" (2,282.95mm)	-1.75" (-44.45mm)	86th Wettest	Wettest since: 1976	2020
May 1973–Apr 1977 48-Month	121.33" (3,081.78mm)	119.77" (3,042.16mm)	1.56" (39.62mm)	71st Driest	Driest since: 1972	1956
May 1973–Apr 1977 48-Month	121.33" (3,081.78mm)	119.77" (3,042.16mm)	1.56" (39.62mm)	54th Wettest	Wettest since: 1976	2019
May 1972–Apr 1977 60-Month	156.28" (3,969.51mm)	149.63" (3,800.60mm)	6.65" (168.91mm)	103rd Driest	Driest since: 1973	1957
May 1972–Apr 1977 60-Month	156.28" (3,969.51mm)	149.63" (3,800.60mm)	6.65" (168.91mm)	21st Wettest	Wettest since: 1976	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published January 2023, retrieved on January 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings