Regional Rankings
Northwest Climate Region
Precipitation Rankings, December 1999
Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2022) |
Wettest/Driest Since |
Record |
---|---|---|---|---|---|---|
December 1999 1-Month |
4.16" (105.66mm) | 4.63" (117.60mm) |
-0.47" (-11.94mm) | 53rd Driest | Driest since: |
1976 |
76th Wettest | Wettest since: |
1964 | ||||
Nov– 2-Month |
8.89" (225.81mm) | 8.97" (227.84mm) |
-0.08" (-2.03mm) | 65th Driest | Driest since: |
1976 |
64th Wettest | Wettest since: |
1996 | ||||
Oct– 3-Month |
11.05" (280.67mm) | 11.51" (292.35mm) |
-0.46" (-11.68mm) | 53rd Driest | Driest since: |
1976 |
76th Wettest | Wettest since: |
1996 | ||||
Sep– 4-Month |
11.24" (285.50mm) | 12.93" (328.42mm) |
-1.69" (-42.92mm) | 38th Driest | Driest since: |
1976 |
91st Wettest | Wettest since: |
1996 | ||||
Aug– 5-Month |
12.39" (314.71mm) | 13.73" (348.74mm) |
-1.34" (-34.03mm) | 44th Driest | Driest since: |
1936 |
85th Wettest | Wettest since: |
1996 | ||||
Jul– 6-Month |
12.82" (325.63mm) | 14.46" (367.28mm) |
-1.64" (-41.65mm) | 42nd Driest | Driest since: |
1936 |
87th Wettest | Wettest since: |
1996 | ||||
Jun– 7-Month |
14.28" (362.71mm) | 16.18" (410.97mm) |
-1.90" (-48.26mm) | 41st Driest | Driest since: |
1976 |
88th Wettest | Wettest since: |
1996 | ||||
May– 8-Month |
16.49" (418.85mm) | 18.32" (465.33mm) |
-1.83" (-46.48mm) | 42nd Driest | Driest since: |
1935 |
87th Wettest | Wettest since: |
1996 | ||||
Apr– 9-Month |
17.98" (456.69mm) | 20.67" (525.02mm) |
-2.69" (-68.33mm) | 29th Driest | Driest since: |
1976 |
100th Wettest | Wettest since: |
1996 | ||||
Mar– 10-Month |
20.99" (533.15mm) | 23.93" (607.82mm) |
-2.94" (-74.67mm) | 30th Driest | Driest since: |
1976 |
99th Wettest | Wettest since: |
1996 | ||||
Feb– 11-Month |
28.15" (715.01mm) | 27.54" (699.52mm) |
0.61" (15.49mm) | 69th Driest | Driest since: |
1935 |
60th Wettest | Wettest since: |
1996 | ||||
Jan– 12-Month |
33.40" (848.36mm) | 32.07" (814.58mm) |
1.33" (33.78mm) | 81st Driest | Driest since: |
1929 |
48th Wettest | Wettest since: |
1996 | ||||
Jul 1998– 18-Month |
51.10" (1,297.94mm) | 46.58" (1,183.13mm) |
4.52" (114.81mm) | 102nd Driest | Driest since: |
1929 |
26th Wettest | Wettest since: |
1996 | ||||
Jan 1998– 24-Month |
73.16" (1,858.26mm) | 64.19" (1,630.43mm) |
8.97" (227.83mm) | 118th Driest | Driest since: |
1930 |
10th Wettest | Wettest since: |
1996 | ||||
Jan 1997– 36-Month |
108.31" (2,751.07mm) | 96.33" (2,446.78mm) |
11.98" (304.29mm) | 119th Driest | Driest since: |
1930 |
8th Wettest | Wettest since: |
1997 | ||||
Jan 1996– 48-Month |
153.18" (3,890.77mm) | 128.33" (3,259.58mm) |
24.85" (631.19mm) | 124th Driest | Driest since: |
1931 |
2nd Wettest | Wettest since: |
1998 | ||||
Jan 1995– 60-Month |
193.76" (4,921.50mm) | 160.34" (4,072.64mm) |
33.42" (848.86mm) | 124th 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 February 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings