NOAA's National Centers for Environmental Information
National Rankings
Contiguous U.S.
September 2012 Precipitation Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| September 2012 1-Month | 2.34in (59.44mm) | 2.49in (63.25mm) | -0.15in | 51st Driest | Driest since: | 1956 |
| 80th Wettest | Wettest since: | 1986 | ||||
| Aug– 2-Month | 4.81in (122.17mm) | 5.10in (129.54mm) | -0.29in | 36th Driest | Driest since: | 1956 |
| 95th Wettest | Wettest since: | 1977 | ||||
| Ties: 1919, 1999 | ||||||
| Jul– 3-Month | 7.32in (185.93mm) | 7.88in (200.15mm) | -0.56in | 26th Driest | Driest since: | 1930 |
| 105th Wettest | Wettest since: | 1915 | ||||
| Ties: 1957 | ||||||
| Jun– 4-Month | 9.56in (242.82mm) | 10.80in (274.32mm) | -1.24in | 12th Driest | Driest since: | 1930 |
| 119th Wettest | Wettest since: | 1915 | ||||
| May– 5-Month | 12.06in (306.32mm) | 13.71in (348.23mm) | -1.65in | 11th Driest | Driest since: | 1956 |
| 120th Wettest | Wettest since: | 1915 | ||||
| Apr– 6-Month | 14.28in (362.71mm) | 16.23in (412.24mm) | -1.95in | 12th Driest | Driest since: | 1956 |
| 119th Wettest | Wettest since: | 1915 | ||||
| Mar– 7-Month | 17.15in (435.61mm) | 18.74in (476.00mm) | -1.59in | 16th Driest | Driest since: | 1956 |
| 115th Wettest | Wettest since: | 1973 | ||||
| Feb– 8-Month | 19.00in (482.60mm) | 20.87in (530.10mm) | -1.87in | 14th Driest | Driest since: | 1930 |
| 117th Wettest | Wettest since: | 2019 | ||||
| Ties: 1924, 1963 | ||||||
| Jan– 9-Month | 21.09in (535.69mm) | 23.18in (588.77mm) | -2.09in | 12th Driest | Driest since: | 1934 |
| 119th Wettest | Wettest since: | 2019 | ||||
| Dec 2011– 10-Month | 23.35in (593.09mm) | 25.53in (648.46mm) | -2.18in | 13th Driest | Driest since: | 1931 |
| 117th Wettest | Wettest since: | 2019 | ||||
| Nov 2011– 11-Month | 25.82in (655.83mm) | 27.76in (705.10mm) | -1.94in | 24th Driest | Driest since: | 1934 |
| 106th Wettest | Wettest since: | 2019 | ||||
| Oct 2011– 12-Month | 27.96in (710.18mm) | 29.92in (759.97mm) | -1.96in | 23rd Driest | Driest since: | 1934 |
| 107th Wettest | Wettest since: | 2019 | ||||
| Apr 2011– 18-Month | 44.64in (1,133.86mm) | 46.17in | -1.53in | 36th Driest | Driest since: | 1931 |
| 94th Wettest | Wettest since: | 2019 | ||||
| Oct 2010– 24-Month | 57.82in (1,468.63mm) | 59.89in | -2.07in | 32nd Driest | Driest since: | 1918 |
| 97th Wettest | Wettest since: | 2020 | ||||
| Oct 2009– 36-Month | 91.54in (2,325.12mm) | 89.82in | 1.72in | 81st Driest | Driest since: | 1956 |
| 47th Wettest | Wettest since: | 2019 | ||||
| Oct 2008– 48-Month | 121.80in (3,093.72mm) | 119.72in | 2.08in | 77th Driest | Driest since: | 1956 |
| 50th Wettest | Wettest since: | 2019 | ||||
| Oct 2007– 60-Month | 153.15in (3,890.01mm) | 149.58in | 3.57in | 85th Driest | Driest since: | 1956 |
| 41st Wettest | Wettest since: | 2020 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2025, retrieved on March 24, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings
