NOAA's National Centers for Environmental Information
Divisional Rankings
Oregon, Climate Division 1
December 1911 Palmer Z-Index Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| December 1911 1-Month | -1.38 | -0.20 | -1.18 | 37th Driest | Driest since: | 2013 |
| 94th Wettest | Wettest since: | 2015 | ||||
| Nov– 2-Month | -1.24 | -0.04 | -1.20 | 24th Driest | Driest since: | 2013 |
| 107th Wettest | Wettest since: | 1973 | ||||
| Oct– 3-Month | -1.53 | -0.11 | -1.42 | 12th Driest | Driest since: | 2013 |
| 119th Wettest | Wettest since: | 2016 | ||||
| Sep– 4-Month | -0.41 | -0.05 | -0.36 | 41st Driest | Driest since: | 1976 |
| 90th Wettest | Wettest since: | 1973 | ||||
| Aug– 5-Month | -0.60 | -0.07 | -0.53 | 35th Driest | Driest since: | 1936 |
| 96th Wettest | Wettest since: | 1968 | ||||
| Jul– 6-Month | -0.67 | -0.07 | -0.60 | 30th Driest | Driest since: | 2018 |
| 101st Wettest | Wettest since: | 1920 | ||||
| Jun– 7-Month | -0.67 | -0.06 | -0.61 | 29th Driest | Driest to Date | 2018 |
| 102nd Wettest | Wettest since: | 1920 | ||||
| May– 8-Month | -0.19 | -0.05 | -0.14 | 60th Driest | Driest since: | 2018 |
| 71st Wettest | Wettest since: | 1968 | ||||
| Apr– 9-Month | -0.18 | -0.03 | -0.15 | 62nd Driest | Driest since: | 1938 |
| 69th Wettest | Wettest since: | 1937 | ||||
| Mar– 10-Month | -0.60 | -0.05 | -0.55 | 36th Driest | Driest since: | 1992 |
| 95th Wettest | Wettest since: | 1920, 1937 | ||||
| Feb– 11-Month | -0.72 | -0.04 | -0.68 | 29th Driest | Driest since: | 2018 |
| 102nd Wettest | Wettest since: | 1983 | ||||
| Jan– 12-Month | -0.60 | -0.04 | -0.56 | 32nd Driest | Driest since: | 1992 |
| 99th Wettest | Wettest since: | 1983 | ||||
| Jul 1910– 18-Month | -0.57 | -0.04 | -0.53 | 23rd Driest | Driest since: | 1992 |
| 107th Wettest | Wettest since: | 1983, 1996 | ||||
| Jan 1910– 24-Month | -0.64 | -0.04 | -0.60 | 12th Driest | Driest to Date | 1930 |
| 118th Wettest | Wettest since: | 1984 | ||||
| Jan 1909– 36-Month | -0.34 | -0.03 | -0.31 | 34th Driest | Driest to Date | 1930 |
| 95th Wettest | Wettest since: | 1997 | ||||
| Jan 1908– 48-Month | -0.38 | -0.04 | -0.34 | 32nd Driest | Driest to Date | 1926 |
| 96th Wettest | Wettest since: | 1998 | ||||
| Jan 1907– 60-Month | -0.19 | -0.04 | -0.15 | 50th Driest | Driest to Date | 1926, 1932 |
| 77th Wettest | Wettest since: | 1999 |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 28, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings
