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, October 1997

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
October 1997
1-Month
4.08"
(103.63mm)
2.54"
(64.52mm)
1.54"
(39.11mm)
119th Driest
Driest since:
1895
10th Wettest
Wettest since:
2016
Ties: 1955
Sep–Oct 1997
2-Month
6.52"
(165.61mm)
3.96"
(100.58mm)
2.56"
(65.03mm)
123rd Driest
Driest since:
1987
6th Wettest
Wettest since:
2016
Aug–Oct 1997
3-Month
7.49"
(190.25mm)
4.76"
(120.90mm)
2.73"
(69.35mm)
123rd Driest
Driest since:
1987
6th Wettest
Wettest since:
2016
Jul–Oct 1997
4-Month
8.96"
(227.58mm)
5.49"
(139.45mm)
3.47"
(88.13mm)
127th Driest
Driest since:
1952
2nd Wettest
Wettest to Date
2016
Jun–Oct 1997
5-Month
11.20"
(284.48mm)
7.21"
(183.13mm)
3.99"
(101.35mm)
127th Driest
Driest since:
1917, 2002
2nd Wettest
Wettest since:
1947
May–Oct 1997
6-Month
13.16"
(334.26mm)
9.35"
(237.49mm)
3.81"
(96.77mm)
126th Driest
Driest since:
2002
3rd Wettest
Wettest since:
1941
Apr–Oct 1997
7-Month
16.45"
(417.83mm)
11.71"
(297.43mm)
4.74"
(120.40mm)
128th Driest
Driest since:
2002
1st Wettest
Wettest to Date
1997
Mar–Oct 1997
8-Month
21.17"
(537.72mm)
14.97"
(380.24mm)
6.20"
(157.48mm)
128th Driest
Driest since:
1939
1st Wettest
Wettest to Date
1997
Feb–Oct 1997
9-Month
23.60"
(599.44mm)
18.58"
(471.93mm)
5.02"
(127.51mm)
124th Driest
Driest since:
1929
5th Wettest
Wettest since:
2017
Jan–Oct 1997
10-Month
29.49"
(749.05mm)
23.10"
(586.74mm)
6.39"
(162.31mm)
127th Driest
Driest since:
1929
2nd Wettest
Wettest since:
1950
Dec 1996–Oct 1997
11-Month
39.76"
(1,009.90mm)
27.75"
(704.85mm)
12.01"
(305.05mm)
127th Driest
Driest since:
1929
1st Wettest
Wettest to Date
1997
Nov 1996–Oct 1997
12-Month
45.55"
(1,156.97mm)
32.10"
(815.34mm)
13.45"
(341.63mm)
127th Driest
Driest since:
1977
1st Wettest
Wettest to Date
1997
May 1996–Oct 1997
18-Month
56.18"
(1,426.97mm)
41.48"
(1,053.59mm)
14.70"
(373.38mm)
127th Driest
Driest since:
1929
1st Wettest
Wettest to Date
1997
Nov 1995–Oct 1997
24-Month
87.31"
(2,217.67mm)
64.23"
(1,631.44mm)
23.08"
(586.23mm)
126th Driest
Driest since:
1930
1st Wettest
Wettest to Date
1997
Nov 1994–Oct 1997
36-Month
125.05"
(3,176.27mm)
96.31"
(2,446.27mm)
28.74"
(730.00mm)
125th Driest
Driest since:
1931
1st Wettest
Wettest to Date
1997
Nov 1993–Oct 1997
48-Month
149.86"
(3,806.44mm)
128.38"
(3,260.85mm)
21.48"
(545.59mm)
121st Driest
Driest since:
1931
4th Wettest
Wettest since:
1999
Nov 1992–Oct 1997
60-Month
182.92"
(4,646.17mm)
160.37"
(4,073.40mm)
22.55"
(572.77mm)
120th Driest
Driest since:
1932
4th Wettest
Wettest since:
1999

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