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, January 1977

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Wettest/Driest
Since
Record
January 1977
1-Month
1.42"
(36.07mm)
4.53"
(115.06mm)
-3.11"
(-78.99mm)
3rd Driest
Driest since:
1985
127th Wettest
Wettest since:
1953
Dec 1976–Jan 1977
2-Month
2.73"
(69.34mm)
9.17"
(232.92mm)
-6.44"
(-163.58mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1965
Nov 1976–Jan 1977
3-Month
3.74"
(95.00mm)
13.53"
(343.66mm)
-9.79"
(-248.66mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1974
Oct 1976–Jan 1977
4-Month
4.88"
(123.95mm)
16.08"
(408.43mm)
-11.20"
(-284.48mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1997
Sep 1976–Jan 1977
5-Month
6.08"
(154.43mm)
17.50"
(444.50mm)
-11.42"
(-290.07mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1974
Aug 1976–Jan 1977
6-Month
8.57"
(217.68mm)
18.31"
(465.07mm)
-9.74"
(-247.39mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1974
Jul 1976–Jan 1977
7-Month
9.50"
(241.30mm)
19.04"
(483.62mm)
-9.54"
(-242.32mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1956
Jun 1976–Jan 1977
8-Month
10.74"
(272.80mm)
20.76"
(527.30mm)
-10.02"
(-254.50mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1956
May 1976–Jan 1977
9-Month
12.14"
(308.36mm)
22.91"
(581.91mm)
-10.77"
(-273.55mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1997
Apr 1976–Jan 1977
10-Month
14.50"
(368.30mm)
25.27"
(641.86mm)
-10.77"
(-273.56mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1997
Mar 1976–Jan 1977
11-Month
17.44"
(442.98mm)
28.53"
(724.66mm)
-11.09"
(-281.68mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1997
Feb 1976–Jan 1977
12-Month
21.58"
(548.13mm)
32.13"
(816.10mm)
-10.55"
(-267.97mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
1997
Aug 1975–Jan 1977
18-Month
43.21"
(1,097.53mm)
50.47"
(1,281.94mm)
-7.26"
(-184.41mm)
14th Driest
Driest since:
1930
114th Wettest
Wettest since:
1997
Feb 1975–Jan 1977
24-Month
58.50"
(1,485.90mm)
64.28"
(1,632.71mm)
-5.78"
(-146.81mm)
23rd Driest
Driest since:
1931
105th Wettest
Wettest since:
1997
Feb 1974–Jan 1977
36-Month
90.39"
(2,295.91mm)
96.31"
(2,446.27mm)
-5.92"
(-150.36mm)
33rd Driest
Driest since:
1931
94th Wettest
Wettest since:
1998
Feb 1973–Jan 1977
48-Month
126.57"
(3,214.88mm)
128.35"
(3,260.09mm)
-1.78"
(-45.21mm)
54th Driest
Driest since:
1932
72nd Wettest
Wettest since:
1999
Feb 1972–Jan 1977
60-Month
159.36"
(4,047.74mm)
160.30"
(4,071.62mm)
-0.94"
(-23.88mm)
57th Driest
Driest since:
1933
68th Wettest
Wettest since:
2000

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