NOAA's National Centers for Environmental Information
National Rankings
Contiguous U.S.
September 2009 Precipitation Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| September 2009 1-Month | 2.54in (64.52mm) | 2.49in (63.25mm) | 0.05in | 77th Driest | Driest since: | 1956 |
| 54th Wettest | Wettest since: | 1986 | ||||
| Ties: 1964, 1997 | ||||||
| Aug– 2-Month | 5.23in (132.84mm) | 5.10in (129.54mm) | 0.13in | 81st Driest | Driest since: | 1956 |
| 50th Wettest | Wettest since: | 1977 | ||||
| Jul– 3-Month | 8.30in (210.82mm) | 7.88in (200.15mm) | 0.42in | 93rd Driest | Driest since: | 1930 |
| 38th Wettest | Wettest since: | 1915 | ||||
| Ties: 1972 | ||||||
| Jun– 4-Month | 11.31in (287.27mm) | 10.80in (274.32mm) | 0.51in | 89th Driest | Driest since: | 1930 |
| 42nd Wettest | Wettest since: | 1915 | ||||
| May– 5-Month | 14.62in (371.35mm) | 13.71in (348.23mm) | 0.91in | 97th Driest | Driest since: | 1956 |
| 34th Wettest | Wettest since: | 1915 | ||||
| Apr– 6-Month | 17.44in (442.98mm) | 16.23in (412.24mm) | 1.21in | 100th Driest | Driest since: | 1956 |
| 31st Wettest | Wettest since: | 1915 | ||||
| Mar– 7-Month | 20.14in (511.56mm) | 18.74in (476.00mm) | 1.40in | 104th Driest | Driest since: | 1956 |
| 27th Wettest | Wettest since: | 1973 | ||||
| Feb– 8-Month | 21.69in (550.93mm) | 20.87in (530.10mm) | 0.82in | 83rd Driest | Driest since: | 1930 |
| 48th Wettest | Wettest since: | 2019 | ||||
| Jan– 9-Month | 23.29in (591.57mm) | 23.18in (588.77mm) | 0.11in | 64th Driest | Driest since: | 1934 |
| 67th Wettest | Wettest since: | 2019 | ||||
| Dec 2008– 10-Month | 26.13in (663.70mm) | 25.53in (648.46mm) | 0.60in | 78th Driest | Driest since: | 1931 |
| 52nd Wettest | Wettest since: | 2019 | ||||
| Nov 2008– 11-Month | 28.08in (713.23mm) | 27.76in (705.10mm) | 0.32in | 68th Driest | Driest since: | 1934 |
| 62nd Wettest | Wettest since: | 2019 | ||||
| Oct 2008– 12-Month | 30.26in (768.60mm) | 29.92in (759.97mm) | 0.34in | 69th Driest | Driest since: | 1934 |
| 61st Wettest | Wettest since: | 2019 | ||||
| Ties: 1946 | ||||||
| Apr 2008– 18-Month | 47.33in (1,202.18mm) | 46.17in | 1.16in | 82nd Driest | Driest since: | 1931 |
| 48th Wettest | Wettest since: | 2019 | ||||
| Ties: 1921 | ||||||
| Oct 2007– 24-Month | 61.61in (1,564.89mm) | 59.89in | 1.72in | 82nd Driest | Driest since: | 1918 |
| 47th Wettest | Wettest since: | 2020 | ||||
| Oct 2006– 36-Month | 91.62in (2,327.15mm) | 89.82in | 1.80in | 82nd Driest | Driest since: | 1956 |
| 46th Wettest | Wettest since: | 2019 | ||||
| Oct 2005– 48-Month | 120.39in (3,057.91mm) | 119.72in | 0.67in | 66th Driest | Driest since: | 1956 |
| 61st Wettest | Wettest since: | 2019 | ||||
| Oct 2004– 60-Month | 151.98in (3,860.29mm) | 149.58in | 2.40in | 76th Driest | Driest since: | 1956 |
| 50th 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 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings
