NOAA's National Centers for Environmental Information
Divisional Rankings
Oregon, Climate Division 1
December 2013 Palmer Z-Index Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| December 2013 1-Month | -3.14 | -0.20 | -2.94 | 1st Driest | Driest to Date | 2013 |
| 130th Wettest | Wettest since: | 2015 | ||||
| Nov– 2-Month | -2.78 | -0.04 | -2.74 | 1st Driest | Driest to Date | 2013 |
| 130th Wettest | Wettest since: | 1973 | ||||
| Oct– 3-Month | -2.81 | -0.11 | -2.70 | 1st Driest | Driest to Date | 2013 |
| 130th Wettest | Wettest since: | 2016 | ||||
| Sep– 4-Month | -0.41 | -0.05 | -0.36 | 41st Driest | Driest since: | 1976 |
| 90th Wettest | Wettest since: | 1973 | ||||
| Ties: 1911, 1985, 1988 | ||||||
| Aug– 5-Month | -0.44 | -0.07 | -0.37 | 47th Driest | Driest since: | 1936 |
| 84th Wettest | Wettest since: | 1968 | ||||
| Jul– 6-Month | -0.60 | -0.07 | -0.53 | 35th Driest | Driest since: | 2018 |
| 96th Wettest | Wettest since: | 1920 | ||||
| Jun– 7-Month | -0.62 | -0.06 | -0.56 | 37th Driest | Driest since: | 2018 |
| 94th Wettest | Wettest since: | 1920 | ||||
| Ties: 1895 | ||||||
| May– 8-Month | -0.41 | -0.05 | -0.36 | 46th Driest | Driest since: | 2018 |
| 85th Wettest | Wettest since: | 1968 | ||||
| Apr– 9-Month | -0.39 | -0.03 | -0.36 | 43rd Driest | Driest since: | 1938 |
| 88th Wettest | Wettest since: | 1937 | ||||
| Mar– 10-Month | -0.65 | -0.05 | -0.60 | 28th Driest | Driest since: | 1992 |
| 103rd Wettest | Wettest since: | 1920, 1937 | ||||
| Feb– 11-Month | -0.81 | -0.04 | -0.77 | 21st Driest | Driest since: | 2018 |
| 110th Wettest | Wettest since: | 1983 | ||||
| Jan– 12-Month | -0.93 | -0.04 | -0.89 | 9th Driest | Driest since: | 1992 |
| 122nd Wettest | Wettest since: | 1983 | ||||
| Ties: 1939 | ||||||
| Jul 2012– 18-Month | -0.54 | -0.04 | -0.50 | 27th Driest | Driest since: | 1992 |
| 103rd Wettest | Wettest since: | 1983, 1996 | ||||
| Ties: 1934 | ||||||
| Jan 2012– 24-Month | 0.02 | -0.04 | 0.06 | 74th Driest | Driest since: | 1930 |
| 56th Wettest | Wettest since: | 1984 | ||||
| Ties: 1943 | ||||||
| Jan 2011– 36-Month | 0.02 | -0.03 | 0.05 | 79th Driest | Driest since: | 1930 |
| 50th Wettest | Wettest since: | 1997 | ||||
| Ties: 2000 | ||||||
| Jan 2010– 48-Month | 0.20 | -0.04 | 0.24 | 101st Driest | Driest since: | 1926 |
| 27th Wettest | Wettest since: | 1998 | ||||
| Ties: 1915, 1972 | ||||||
| Jan 2009– 60-Month | -0.01 | -0.04 | 0.03 | 71st Driest | Driest since: | 1926, 1932 |
| 56th 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 26, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings
