NOAA's National Centers for Environmental Information
Divisional Rankings
Oregon, Climate Division 1
December 1928 Palmer Z-Index Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| December 1928 1-Month | -0.60 | -0.20 | -0.40 | 58th Driest | Driest since: | 2013 |
| 73rd Wettest | Wettest since: | 2015 | ||||
| Nov– 2-Month | -0.28 | -0.04 | -0.24 | 57th Driest | Driest since: | 2013 |
| 74th Wettest | Wettest since: | 1973 | ||||
| Oct– 3-Month | -0.60 | -0.11 | -0.49 | 42nd Driest | Driest since: | 2013 |
| 89th Wettest | Wettest since: | 2016 | ||||
| Sep– 4-Month | -0.70 | -0.05 | -0.65 | 30th Driest | Driest since: | 1976 |
| 101st Wettest | Wettest since: | 1973 | ||||
| Aug– 5-Month | -0.97 | -0.07 | -0.90 | 19th Driest | Driest since: | 1936 |
| 112th Wettest | Wettest since: | 1968 | ||||
| Jul– 6-Month | -1.11 | -0.07 | -1.04 | 7th Driest | Driest to Date | 2018 |
| 124th Wettest | Wettest since: | 1920 | ||||
| Jun– 7-Month | -1.24 | -0.06 | -1.18 | 7th Driest | Driest to Date | 2018 |
| 124th Wettest | Wettest since: | 1920 | ||||
| May– 8-Month | -1.41 | -0.05 | -1.36 | 6th Driest | Driest to Date | 2018 |
| 125th Wettest | Wettest since: | 1968 | ||||
| Apr– 9-Month | -0.86 | -0.03 | -0.83 | 14th Driest | Driest since: | 1938 |
| 117th Wettest | Wettest since: | 1937 | ||||
| Mar– 10-Month | -0.46 | -0.05 | -0.41 | 41st Driest | Driest since: | 1992 |
| 90th Wettest | Wettest since: | 1920, 1937 | ||||
| Feb– 11-Month | -0.70 | -0.04 | -0.66 | 31st Driest | Driest since: | 2018 |
| 100th Wettest | Wettest since: | 1983 | ||||
| Jan– 12-Month | -0.72 | -0.04 | -0.68 | 21st Driest | Driest since: | 1992 |
| 110th Wettest | Wettest since: | 1983 | ||||
| Ties: 1923 | ||||||
| Jul 1927– 18-Month | -0.49 | -0.04 | -0.45 | 31st Driest | Driest since: | 1992 |
| 99th Wettest | Wettest since: | 1983, 1996 | ||||
| Jan 1927– 24-Month | -0.28 | -0.04 | -0.24 | 45th Driest | Driest since: | 1930 |
| 85th Wettest | Wettest since: | 1984 | ||||
| Jan 1926– 36-Month | -0.37 | -0.03 | -0.34 | 31st Driest | Driest since: | 1930 |
| 98th Wettest | Wettest since: | 1997 | ||||
| Jan 1925– 48-Month | -0.44 | -0.04 | -0.40 | 23rd Driest | Driest since: | 1926 |
| 105th Wettest | Wettest since: | 1998 | ||||
| Jan 1924– 60-Month | -0.59 | -0.04 | -0.55 | 6th Driest | Driest since: | 1926, 1932 |
| 121st Wettest | Wettest since: | 1999 | ||||
| Ties: 1927 | ||||||
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
