NOAA's National Centers for Environmental Information
Divisional Rankings
Pennsylvania, Climate Division 4
November 1957 Palmer Z-Index Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| November 1957 1-Month | -1.25 | -0.21 | -1.04 | 42nd Driest | Driest since: | 1930 |
| 89th Wettest | Wettest since: | 2018 | ||||
| Oct– 2-Month | -0.76 | -0.12 | -0.64 | 45th Driest | Driest since: | 1930 |
| 86th Wettest | Wettest since: | 1932 | ||||
| Sep– 3-Month | -0.75 | -0.02 | -0.73 | 37th Driest | Driest since: | 1930 |
| 94th Wettest | Wettest since: | 2018 | ||||
| Aug– 4-Month | -1.21 | 0.03 | -1.24 | 22nd Driest | Driest since: | 1930 |
| 109th Wettest | Wettest since: | 2018 | ||||
| Jul– 5-Month | -1.41 | 0.07 | -1.48 | 13th Driest | Driest since: | 1930 |
| 118th Wettest | Wettest since: | 2018 | ||||
| Jun– 6-Month | -1.19 | 0.09 | -1.28 | 13th Driest | Driest since: | 1930 |
| 118th Wettest | Wettest since: | 2018 | ||||
| Ties: 1908 | ||||||
| May– 7-Month | -1.37 | 0.04 | -1.41 | 10th Driest | Driest since: | 1930 |
| 121st Wettest | Wettest since: | 2018 | ||||
| Apr– 8-Month | -1.14 | 0.04 | -1.18 | 12th Driest | Driest since: | 1930 |
| 119th Wettest | Wettest since: | 2018 | ||||
| Mar– 9-Month | -1.19 | 0.03 | -1.22 | 11th Driest | Driest since: | 1930 |
| 120th Wettest | Wettest since: | 2018 | ||||
| Feb– 10-Month | -1.06 | 0.04 | -1.10 | 8th Driest | Driest since: | 1930 |
| 123rd Wettest | Wettest since: | 2018 | ||||
| Jan– 11-Month | -1.03 | 0.06 | -1.09 | 7th Driest | Driest since: | 1930 |
| 124th Wettest | Wettest since: | 2018 | ||||
| Dec 1956– 12-Month | -0.85 | 0.05 | -0.90 | 14th Driest | Driest since: | 1930 |
| 116th Wettest | Wettest since: | 2018 | ||||
| Jun 1956– 18-Month | -0.25 | 0.06 | -0.31 | 39th Driest | Driest since: | 1931 |
| 91st Wettest | Wettest since: | 2019 | ||||
| Dec 1955– 24-Month | -0.30 | 0.05 | -0.35 | 35th Driest | Driest since: | 1931 |
| 94th Wettest | Wettest since: | 2019 | ||||
| Dec 1954– 36-Month | -0.15 | 0.05 | -0.20 | 39th Driest | Driest since: | 1966 |
| 89th Wettest | Wettest since: | 2019 | ||||
| Dec 1953– 48-Month | -0.29 | 0.05 | -0.34 | 20th Driest | Driest since: | 1966 |
| 107th Wettest | Wettest since: | 1996 | ||||
| Dec 1952– 60-Month | -0.28 | 0.06 | -0.34 | 17th Driest | Driest since: | 1966 |
| 109th Wettest | Wettest since: | 1975 | ||||
| Ties: 1932 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 30, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings
