NOAA's National Centers for Environmental Information
National Rankings
Contiguous U.S.
May 2015 Precipitation Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| May 2015 1-Month | 4.44in (112.78mm) | 2.91in (73.91mm) | 1.53in | 129th Driest | Driest since: | 1934 |
| 2nd Wettest | Wettest to Date | 2019 | ||||
| Apr– 2-Month | 7.27in (184.66mm) | 5.42in (137.67mm) | 1.85in | 128th Driest | Driest since: | 1934 |
| 3rd Wettest | Wettest since: | 1957 | ||||
| Mar– 3-Month | 9.40in (238.76mm) | 7.93in (201.42mm) | 1.47in | 119th Driest | Driest since: | 1925 |
| 12th Wettest | Wettest since: | 1957, 1991 | ||||
| Feb– 4-Month | 11.14in (282.96mm) | 10.07in (255.78mm) | 1.07in | 108th Driest | Driest since: | 1925 |
| 23rd Wettest | Wettest since: | 2019 | ||||
| Jan– 5-Month | 12.97in (329.44mm) | 12.38in (314.45mm) | 0.59in | 91st Driest | Driest since: | 1934 |
| 40th Wettest | Wettest since: | 2019 | ||||
| Dec 2014– 6-Month | 15.54in (394.72mm) | 14.72in (373.89mm) | 0.82in | 89th Driest | Driest since: | 1931 |
| 41st Wettest | Wettest since: | 2019 | ||||
| Nov 2014– 7-Month | 17.67in (448.82mm) | 16.95in (430.53mm) | 0.72in | 89th Driest | Driest since: | 1934 |
| 41st Wettest | Wettest since: | 1983 | ||||
| Oct 2014– 8-Month | 20.09in (510.29mm) | 19.12in (485.65mm) | 0.97in | 92nd Driest | Driest since: | 1934 |
| 38th Wettest | Wettest since: | 2019 | ||||
| Sep 2014– 9-Month | 22.72in (577.09mm) | 21.61in (548.89mm) | 1.11in | 90th Driest | Driest since: | 1934 |
| 40th Wettest | Wettest since: | 2019 | ||||
| Aug 2014– 10-Month | 25.85in (656.59mm) | 24.23in (615.44mm) | 1.62in | 103rd Driest | Driest since: | 1918 |
| 27th Wettest | Wettest since: | 2019 | ||||
| Jul 2014– 11-Month | 28.45in (722.63mm) | 27.02in (686.31mm) | 1.43in | 96th Driest | Driest since: | 1931 |
| 34th Wettest | Wettest since: | 2019 | ||||
| Jun 2014– 12-Month | 32.12in (815.85mm) | 29.94in (760.48mm) | 2.18in | 108th Driest | Driest since: | 1934 |
| 22nd Wettest | Wettest since: | 2019 | ||||
| Ties: 2011 | ||||||
| Dec 2013– 18-Month | 45.99in (1,168.15mm) | 44.67in | 1.32in | 89th Driest | Driest since: | 1931 |
| 40th Wettest | Wettest since: | 2019 | ||||
| Jun 2013– 24-Month | 62.48in (1,586.99mm) | 59.89in | 2.59in | 98th Driest | Driest since: | 1931 |
| 31st Wettest | Wettest since: | 2020 | ||||
| Jun 2012– 36-Month | 90.81in (2,306.57mm) | 89.83in | 0.98in | 72nd Driest | Driest since: | 1955 |
| 56th Wettest | Wettest since: | 2019 | ||||
| Jun 2011– 48-Month | 119.05in (3,023.87mm) | 119.71in | -0.66in | 52nd Driest | Driest since: | 1956 |
| 75th Wettest | Wettest since: | 2019 | ||||
| Ties: 2014 | ||||||
| Jun 2010– 60-Month | 151.17in (3,839.72mm) | 149.56in | 1.61in | 68th Driest | Driest since: | 1957 |
| 58th 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 25, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings
