Regional Rankings
Northwest Climate Region
Precipitation Rankings, October 1999
Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2022) |
Wettest/Driest Since |
Record |
---|---|---|---|---|---|---|
October 1999 1-Month |
2.16" (54.86mm) | 2.54" (64.52mm) |
-0.38" (-9.66mm) | 48th Driest | Driest since: |
1895 |
81st Wettest | Wettest since: |
2016 | ||||
Sep– 2-Month |
2.35" (59.69mm) | 3.96" (100.58mm) |
-1.61" (-40.89mm) | 17th Driest | Driest since: |
1987 |
112th Wettest | Wettest since: |
2016 | ||||
Aug– 3-Month |
3.50" (88.90mm) | 4.76" (120.90mm) |
-1.26" (-32.00mm) | 26th Driest | Driest since: |
1987 |
103rd Wettest | Wettest since: |
2016 | ||||
Ties: 2011 | ||||||
Jul– 4-Month |
3.93" (99.82mm) | 5.49" (139.45mm) |
-1.56" (-39.63mm) | 19th Driest | Driest since: |
1952 |
110th Wettest | Wettest since: |
2016 | ||||
Ties: 2020 | ||||||
Jun– 5-Month |
5.39" (136.91mm) | 7.21" (183.13mm) |
-1.82" (-46.22mm) | 20th Driest | Driest since: |
1917, 2002 |
109th Wettest | Wettest since: |
1947 | ||||
May– 6-Month |
7.60" (193.04mm) | 9.35" (237.49mm) |
-1.75" (-44.45mm) | 24th Driest | Driest since: |
2002 |
105th Wettest | Wettest since: |
1941 | ||||
Apr– 7-Month |
9.09" (230.89mm) | 11.71" (297.43mm) |
-2.62" (-66.54mm) | 15th Driest | Driest since: |
2002 |
114th Wettest | Wettest since: |
1997 | ||||
Mar– 8-Month |
12.10" (307.34mm) | 14.97" (380.24mm) |
-2.87" (-72.90mm) | 20th Driest | Driest since: |
1939 |
109th Wettest | Wettest since: |
1997 | ||||
Feb– 9-Month |
19.26" (489.20mm) | 18.58" (471.93mm) |
0.68" (17.27mm) | 77th Driest | Driest since: |
1929 |
52nd Wettest | Wettest since: |
2017 | ||||
Ties: 1951 | ||||||
Jan– 10-Month |
24.51" (622.55mm) | 23.10" (586.74mm) |
1.41" (35.81mm) | 87th Driest | Driest since: |
1929 |
42nd Wettest | Wettest since: |
1950 | ||||
Dec 1998– 11-Month |
30.70" (779.78mm) | 27.75" (704.85mm) |
2.95" (74.93mm) | 103rd Driest | Driest since: |
1929 |
25th Wettest | Wettest since: |
1997 | ||||
Nov 1998– 12-Month |
38.02" (965.71mm) | 32.10" (815.34mm) |
5.92" (150.37mm) | 116th Driest | Driest since: |
1977 |
12th Wettest | Wettest since: |
1997 | ||||
May 1998– 18-Month |
48.87" (1,241.30mm) | 41.48" (1,053.59mm) |
7.39" (187.71mm) | 119th Driest | Driest since: |
1929 |
9th Wettest | Wettest since: |
1997 | ||||
Nov 1997– 24-Month |
69.93" (1,776.22mm) | 64.23" (1,631.44mm) |
5.70" (144.78mm) | 110th Driest | Driest since: |
1930 |
17th Wettest | Wettest since: |
1997 | ||||
Nov 1996– 36-Month |
115.48" (2,933.19mm) | 96.31" (2,446.27mm) |
19.17" (486.92mm) | 122nd Driest | Driest since: |
1931 |
4th Wettest | Wettest since: |
1997 | ||||
Nov 1995– 48-Month |
157.24" (3,993.90mm) | 128.38" (3,260.85mm) |
28.86" (733.05mm) | 124th Driest | Driest since: |
1931 |
1st Wettest | Wettest to Date |
1999 | ||||
Nov 1994– 60-Month |
194.98" (4,952.49mm) | 160.37" (4,073.40mm) |
34.61" (879.09mm) | 123rd Driest | Driest since: |
1932 |
1st Wettest | Wettest to Date |
1999 |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings