NOAA's National Centers for Environmental Information
National Rankings
Contiguous U.S.
May 2017 Precipitation Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| May 2017 1-Month | 3.36in (85.34mm) | 2.91in (73.91mm) | 0.45in | 109th Driest | Driest since: | 1934 |
| 22nd Wettest | Wettest since: | 2019 | ||||
| Apr– 2-Month | 6.86in (174.24mm) | 5.42in (137.67mm) | 1.44in | 125th Driest | Driest since: | 1934 |
| 6th Wettest | Wettest since: | 1957 | ||||
| Mar– 3-Month | 9.45in (240.03mm) | 7.93in (201.42mm) | 1.52in | 120th Driest | Driest since: | 1925 |
| 11th Wettest | Wettest since: | 1957, 1991 | ||||
| Feb– 4-Month | 11.70in (297.18mm) | 10.07in (255.78mm) | 1.63in | 116th Driest | Driest since: | 1925 |
| 15th Wettest | Wettest since: | 2019 | ||||
| Jan– 5-Month | 14.93in (379.22mm) | 12.38in (314.45mm) | 2.55in | 126th Driest | Driest since: | 1934 |
| 5th Wettest | Wettest since: | 2019 | ||||
| Dec 2016– 6-Month | 17.65in (448.31mm) | 14.72in (373.89mm) | 2.93in | 126th Driest | Driest since: | 1931 |
| 4th Wettest | Wettest since: | 2019 | ||||
| Nov 2016– 7-Month | 19.40in (492.76mm) | 16.95in (430.53mm) | 2.45in | 119th Driest | Driest since: | 1934 |
| 11th Wettest | Wettest since: | 1983 | ||||
| Oct 2016– 8-Month | 21.79in (553.47mm) | 19.12in (485.65mm) | 2.67in | 119th Driest | Driest since: | 1934 |
| 11th Wettest | Wettest since: | 2019 | ||||
| Sep 2016– 9-Month | 24.52in (622.81mm) | 21.61in (548.89mm) | 2.91in | 121st Driest | Driest since: | 1934 |
| 9th Wettest | Wettest since: | 2019 | ||||
| Aug 2016– 10-Month | 27.99in (710.95mm) | 24.23in (615.44mm) | 3.76in | 125th Driest | Driest since: | 1918 |
| 5th Wettest | Wettest since: | 2019 | ||||
| Jul 2016– 11-Month | 30.90in (784.86mm) | 27.02in (686.31mm) | 3.88in | 124th Driest | Driest since: | 1931 |
| 6th Wettest | Wettest since: | 2019 | ||||
| Jun 2016– 12-Month | 33.38in (847.85mm) | 29.94in (760.48mm) | 3.44in | 121st Driest | Driest since: | 1934 |
| 9th Wettest | Wettest since: | 2019 | ||||
| Dec 2015– 18-Month | 50.39in (1,279.91mm) | 44.67in | 5.72in | 123rd Driest | Driest since: | 1931 |
| 6th Wettest | Wettest since: | 2019 | ||||
| Jun 2015– 24-Month | 67.95in (1,725.93mm) | 59.89in | 8.06in | 126th Driest | Driest since: | 1931 |
| 3rd Wettest | Wettest since: | 2020 | ||||
| Jun 2014– 36-Month | 100.07in (2,541.78mm) | 89.83in | 10.24in | 124th Driest | Driest since: | 1955 |
| 4th Wettest | Wettest since: | 2019 | ||||
| Jun 2013– 48-Month | 130.43in (3,312.92mm) | 119.71in | 10.72in | 122nd Driest | Driest since: | 1956 |
| 5th Wettest | Wettest since: | 2019 | ||||
| Jun 2012– 60-Month | 158.76in (4,032.50mm) | 149.56in | 9.20in | 111th Driest | Driest since: | 1957 |
| 15th 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 27, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings
