NOAA's National Centers for Environmental Information
Divisional Rankings
Oregon, Climate Division 1
December 2023 Palmer Z-Index Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| December 2023 1-Month | 0.65 | -0.20 | 0.85 | 89th Driest | Driest since: | 2013 |
| 42nd Wettest | Wettest since: | 2015 | ||||
| Nov– 2-Month | 0.04 | -0.04 | 0.08 | 68th Driest | Driest since: | 2013 |
| 63rd Wettest | Wettest since: | 1973 | ||||
| Ties: 1946 | ||||||
| Oct– 3-Month | -0.26 | -0.11 | -0.15 | 60th Driest | Driest since: | 2013 |
| 71st Wettest | Wettest since: | 2016 | ||||
| Sep– 4-Month | -0.01 | -0.05 | 0.04 | 72nd Driest | Driest since: | 1976 |
| 59th Wettest | Wettest since: | 1973 | ||||
| Aug– 5-Month | -0.49 | -0.07 | -0.42 | 40th Driest | Driest since: | 1936 |
| 91st Wettest | Wettest since: | 1968 | ||||
| Ties: 1932, 1999 | ||||||
| Jul– 6-Month | -0.97 | -0.07 | -0.90 | 13th Driest | Driest since: | 2018 |
| 118th Wettest | Wettest since: | 1920 | ||||
| Ties: 2002 | ||||||
| Jun– 7-Month | -1.25 | -0.06 | -1.19 | 5th Driest | Driest since: | 2018 |
| 126th Wettest | Wettest since: | 1920 | ||||
| Ties: 2003 | ||||||
| May– 8-Month | -1.45 | -0.05 | -1.40 | 4th Driest | Driest since: | 2018 |
| 127th Wettest | Wettest since: | 1968 | ||||
| Ties: 1992 | ||||||
| Apr– 9-Month | -0.88 | -0.03 | -0.85 | 13th Driest | Driest since: | 1938 |
| 118th Wettest | Wettest since: | 1937 | ||||
| Mar– 10-Month | -0.71 | -0.05 | -0.66 | 26th Driest | Driest since: | 1992 |
| 105th Wettest | Wettest since: | 1920, 1937 | ||||
| Feb– 11-Month | -0.79 | -0.04 | -0.75 | 22nd Driest | Driest since: | 2018 |
| 109th Wettest | Wettest since: | 1983 | ||||
| Jan– 12-Month | -0.83 | -0.04 | -0.79 | 14th Driest | Driest since: | 1992 |
| 117th Wettest | Wettest since: | 1983 | ||||
| Jul 2022– 18-Month | -0.85 | -0.04 | -0.81 | 8th Driest | Driest since: | 1992 |
| 122nd Wettest | Wettest since: | 1983, 1996 | ||||
| Jan 2022– 24-Month | -0.51 | -0.04 | -0.47 | 29th Driest | Driest since: | 1930 |
| 101st Wettest | Wettest since: | 1984 | ||||
| Ties: 1944, 2014 | ||||||
| Jan 2021– 36-Month | -0.57 | -0.03 | -0.54 | 16th Driest | Driest since: | 1930 |
| 113th Wettest | Wettest since: | 1997 | ||||
| Ties: 1940 | ||||||
| Jan 2020– 48-Month | -0.56 | -0.04 | -0.52 | 10th Driest | Driest since: | 1926 |
| 118th Wettest | Wettest since: | 1998 | ||||
| Jan 2019– 60-Month | -0.56 | -0.04 | -0.52 | 8th Driest | Driest since: | 1926, 1932 |
| 119th Wettest | Wettest since: | 1999 | ||||
| Ties: 1931 | ||||||
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
