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 1947

View Period (Months):

All

Download: CSV JSON XML

Record Driest

Bottom ⅒

Bottom ⅓

Normal

Top ⅓

Top ⅒

Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1947 1-Month	3.01" (76.45mm)	2.52" (64.01mm)	0.49" (12.44mm)	110th Driest	Driest since: 1946	1987
	3.01" (76.45mm)	2.52" (64.01mm)	0.49" (12.44mm)	19th Wettest	Wettest since: 1945	1957
	Ties: 1941
Mar–Apr 1947 2-Month	5.28" (134.11mm)	5.03" (127.76mm)	0.25" (6.35mm)	85th Driest	Driest since: 1946	1910
Mar–Apr 1947 2-Month	5.28" (134.11mm)	5.03" (127.76mm)	0.25" (6.35mm)	44th Wettest	Wettest since: 1945	1973
Feb–Apr 1947 3-Month	6.31" (160.27mm)	7.16" (181.86mm)	-0.85" (-21.59mm)	16th Driest	Driest since: 1943	1910
	6.31" (160.27mm)	7.16" (181.86mm)	-0.85" (-21.59mm)	113th Wettest	Wettest since: 1946	1983
	Ties: 1924, 1971
Jan–Apr 1947 4-Month	8.74" (222.00mm)	9.48" (240.79mm)	-0.74" (-18.79mm)	31st Driest	Driest since: 1943	1910
Jan–Apr 1947 4-Month	8.74" (222.00mm)	9.48" (240.79mm)	-0.74" (-18.79mm)	98th Wettest	Wettest since: 1946	1998
Dec 1946–Apr 1947 5-Month	10.68" (271.27mm)	11.82" (300.23mm)	-1.14" (-28.96mm)	22nd Driest	Driest since: 1934	1931
	10.68" (271.27mm)	11.82" (300.23mm)	-1.14" (-28.96mm)	106th Wettest	Wettest since: 1946	1983
	Ties: 2022
Nov 1946–Apr 1947 6-Month	13.76" (349.50mm)	14.05" (356.87mm)	-0.29" (-7.37mm)	61st Driest	Driest since: 1942	1977
Nov 1946–Apr 1947 6-Month	13.76" (349.50mm)	14.05" (356.87mm)	-0.29" (-7.37mm)	67th Wettest	Wettest since: 1946	1983
Oct 1946–Apr 1947 7-Month	16.48" (418.59mm)	16.22" (411.99mm)	0.26" (6.60mm)	78th Driest	Driest since: 1946	1981
	16.48" (418.59mm)	16.22" (411.99mm)	0.26" (6.60mm)	50th Wettest	Wettest since: 1945	1983
	Ties: 1972
Sep 1946–Apr 1947 8-Month	19.12" (485.65mm)	18.71" (475.23mm)	0.41" (10.42mm)	78th Driest	Driest since: 1944	1918
Sep 1946–Apr 1947 8-Month	19.12" (485.65mm)	18.71" (475.23mm)	0.41" (10.42mm)	50th Wettest	Wettest since: 1946	2019
Aug 1946–Apr 1947 9-Month	21.70" (551.18mm)	21.33" (541.78mm)	0.37" (9.40mm)	79th Driest	Driest since: 1944	1918
Aug 1946–Apr 1947 9-Month	21.70" (551.18mm)	21.33" (541.78mm)	0.37" (9.40mm)	49th Wettest	Wettest since: 1946	2019
Jul 1946–Apr 1947 10-Month	24.27" (616.46mm)	24.12" (612.65mm)	0.15" (3.81mm)	72nd Driest	Driest since: 1944	1931
	24.27" (616.46mm)	24.12" (612.65mm)	0.15" (3.81mm)	56th Wettest	Wettest since: 1946	2019
	Ties: 1965, 1996
Jun 1946–Apr 1947 11-Month	27.15" (689.61mm)	27.04" (686.82mm)	0.11" (2.79mm)	59th Driest	Driest since: 1944	1931
Jun 1946–Apr 1947 11-Month	27.15" (689.61mm)	27.04" (686.82mm)	0.11" (2.79mm)	69th Wettest	Wettest since: 1946	2019
May 1946–Apr 1947 12-Month	30.90" (784.86mm)	29.95" (760.73mm)	0.95" (24.13mm)	84th Driest	Driest since: 1945	1918
	30.90" (784.86mm)	29.95" (760.73mm)	0.95" (24.13mm)	44th Wettest	Wettest since: 1946	2019
	Ties: 1960
Nov 1945–Apr 1947 18-Month	44.77" (1,137.16mm)	44.02" (1,118.11mm)	0.75" (19.05mm)	75th Driest	Driest since: 1945	1931
Nov 1945–Apr 1947 18-Month	44.77" (1,137.16mm)	44.02" (1,118.11mm)	0.75" (19.05mm)	52nd Wettest	Wettest since: 1946	2020
May 1945–Apr 1947 24-Month	62.14" (1,578.36mm)	59.92" (1,521.97mm)	2.22" (56.39mm)	91st Driest	Driest since: 1946	1955
May 1945–Apr 1947 24-Month	62.14" (1,578.36mm)	59.92" (1,521.97mm)	2.22" (56.39mm)	36th Wettest	Wettest since: 1943	2020
May 1944–Apr 1947 36-Month	92.61" (2,352.29mm)	89.88" (2,282.95mm)	2.73" (69.34mm)	87th Driest	Driest since: 1946	1955
	92.61" (2,352.29mm)	89.88" (2,282.95mm)	2.73" (69.34mm)	39th Wettest	Wettest since: 1944	2020
	Ties: 2000, 2022
May 1943–Apr 1947 48-Month	121.80" (3,093.72mm)	119.77" (3,042.16mm)	2.03" (51.56mm)	78th Driest	Driest since: 1943	1956
May 1943–Apr 1947 48-Month	121.80" (3,093.72mm)	119.77" (3,042.16mm)	2.03" (51.56mm)	47th Wettest	Wettest since: 1946	2019
May 1942–Apr 1947 60-Month	152.74" (3,879.60mm)	149.63" (3,800.60mm)	3.11" (79.00mm)	80th Driest	Driest since: 1945	1957
May 1942–Apr 1947 60-Month	152.74" (3,879.60mm)	149.63" (3,800.60mm)	3.11" (79.00mm)	44th Wettest	Wettest since: 1946	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings