Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Northwest Climate Region

Precipitation Rankings, February 1957

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Wettest/Driest
Since		Record
February 1957
1-Month		4.11"
(104.39mm)		3.61"
(91.69mm)		0.50"
(12.70mm)		88th Driest
Driest since:
1920
42nd Wettest
Wettest since:
1904
Jan–Feb 1957
2-Month		6.80"
(172.72mm)		8.14"
(206.76mm)		-1.34"
(-34.04mm)		44th Driest
Driest since:
1977
86th Wettest
Wettest since:
1953
Dec 1956–Feb 1957
3-Month		10.98"
(278.89mm)		12.78"
(324.61mm)		-1.80"
(-45.72mm)		41st Driest
Driest since:
1977
88th Wettest
Wettest since:
1965
Nov 1956–Feb 1957
4-Month		12.35"
(313.69mm)		17.14"
(435.36mm)		-4.79"
(-121.67mm)		11th Driest
Driest since:
1977
118th Wettest
Wettest since:
1974
Oct 1956–Feb 1957
5-Month		17.39"
(441.71mm)		19.69"
(500.13mm)		-2.30"
(-58.42mm)		39th Driest
Driest since:
1977
90th Wettest
Wettest since:
1956
Sep 1956–Feb 1957
6-Month		18.37"
(466.60mm)		21.11"
(536.19mm)		-2.74"
(-69.59mm)		35th Driest
Driest since:
1977
94th Wettest
Wettest since:
1974
Aug 1956–Feb 1957
7-Month		19.35"
(491.49mm)		21.92"
(556.77mm)		-2.57"
(-65.28mm)		34th Driest
Driest since:
1977
95th Wettest
Wettest since:
1974
Jul 1956–Feb 1957
8-Month		20.01"
(508.25mm)		22.65"
(575.31mm)		-2.64"
(-67.06mm)		35th Driest
Driest since:
1977
94th Wettest
Wettest since:
1956
Jun 1956–Feb 1957
9-Month		21.93"
(557.02mm)		24.37"
(619.00mm)		-2.44"
(-61.98mm)		38th Driest
Driest since:
1977
91st Wettest
Wettest since:
1996
May 1956–Feb 1957
10-Month		24.45"
(621.03mm)		26.52"
(673.61mm)		-2.07"
(-52.58mm)		43rd Driest
Driest since:
1977
86th Wettest
Wettest since:
1999
Apr 1956–Feb 1957
11-Month		25.45"
(646.43mm)		28.88"
(733.55mm)		-3.43"
(-87.12mm)		23rd Driest
Driest since:
1977
106th Wettest
Wettest since:
1997
Mar 1956–Feb 1957
12-Month		28.92"
(734.57mm)		32.14"
(816.36mm)		-3.22"
(-81.79mm)		25th Driest
Driest since:
1977
104th Wettest
Wettest since:
1996
Sep 1955–Feb 1957
18-Month		59.34"
(1,507.24mm)		53.27"
(1,353.06mm)		6.07"
(154.18mm)		111th Driest
Driest since:
1931
17th Wettest
Wettest since:
1997
Mar 1955–Feb 1957
24-Month		70.97"
(1,802.64mm)		64.31"
(1,633.47mm)		6.66"
(169.17mm)		110th Driest
Driest since:
1931
18th Wettest
Wettest since:
1997
Mar 1954–Feb 1957
36-Month		96.93"
(2,462.02mm)		96.34"
(2,447.04mm)		0.59"
(14.98mm)		71st Driest
Driest since:
1931
56th Wettest
Wettest since:
1998
Mar 1953–Feb 1957
48-Month		132.35"
(3,361.69mm)		128.36"
(3,260.34mm)		3.99"
(101.35mm)		89th Driest
Driest since:
1932
37th Wettest
Wettest since:
1999
Mar 1952–Feb 1957
60-Month		161.90"
(4,112.26mm)		160.34"
(4,072.64mm)		1.56"
(39.62mm)		70th Driest
Driest since:
1932
55th Wettest
Wettest since:
1999
Ties: 2021

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