NOAA's National Centers for Environmental Information
Divisional Rankings
Iowa, Climate Division 8
December 1956 Palmer Z-Index Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| December 1956 1-Month | -2.51 | -0.11 | -2.40 | 3rd Driest | Driest since: | 1910 |
| 128th Wettest | Wettest since: | 2015 | ||||
| Nov– 2-Month | -2.23 | -0.08 | -2.15 | 9th Driest | Driest since: | 1917 |
| 122nd Wettest | Wettest since: | 2015 | ||||
| Oct– 3-Month | -2.54 | -0.05 | -2.49 | 3rd Driest | Driest since: | 1953 |
| 128th Wettest | Wettest since: | 1931 | ||||
| Sep– 4-Month | -2.60 | 0.00 | -2.60 | 2nd Driest | Driest since: | 1953 |
| 129th Wettest | Wettest since: | 1931, 1941 | ||||
| Aug– 5-Month | -1.90 | -0.02 | -1.88 | 8th Driest | Driest since: | 1953 |
| 123rd Wettest | Wettest since: | 1902 | ||||
| Jul– 6-Month | -1.52 | 0.01 | -1.53 | 15th Driest | Driest since: | 1953 |
| 116th Wettest | Wettest since: | 1902 | ||||
| Ties: 1939 | ||||||
| Jun– 7-Month | -1.85 | 0.02 | -1.87 | 8th Driest | Driest since: | 1953 |
| 123rd Wettest | Wettest since: | 1902 | ||||
| May– 8-Month | -2.01 | 0.04 | -2.05 | 5th Driest | Driest since: | 1953 |
| 126th Wettest | Wettest since: | 1902 | ||||
| Apr– 9-Month | -2.18 | 0.05 | -2.23 | 3rd Driest | Driest since: | 1988 |
| 128th Wettest | Wettest since: | 2008 | ||||
| Mar– 10-Month | -2.28 | 0.03 | -2.31 | 3rd Driest | Driest since: | 1934 |
| 128th Wettest | Wettest since: | 1993 | ||||
| Feb– 11-Month | -2.24 | 0.04 | -2.28 | 2nd Driest | Driest since: | 1934 |
| 129th Wettest | Wettest since: | 2008 | ||||
| Jan– 12-Month | -2.30 | 0.04 | -2.34 | 1st Driest | Driest to Date | 1956 |
| 130th Wettest | Wettest since: | 1993 | ||||
| Jul 1955– 18-Month | -2.16 | 0.04 | -2.20 | 1st Driest | Driest to Date | 1956 |
| 129th Wettest | Wettest since: | 1993 | ||||
| Jan 1955– 24-Month | -1.68 | 0.04 | -1.72 | 2nd Driest | Driest since: | 1934 |
| 128th Wettest | Wettest since: | 2009 | ||||
| Jan 1954– 36-Month | -1.42 | 0.04 | -1.46 | 1st Driest | Driest to Date | 1956 |
| 128th Wettest | Wettest since: | 2010 | ||||
| Jan 1953– 48-Month | -1.37 | 0.04 | -1.41 | 1st Driest | Driest to Date | 1956 |
| 127th Wettest | Wettest since: | 2010 | ||||
| Jan 1952– 60-Month | -1.07 | 0.04 | -1.11 | 2nd Driest | Driest to Date | 1957 |
| 125th Wettest | Wettest since: | 2011 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings
