NOAA's National Centers for Environmental Information
National Rankings
Contiguous U.S.
December 2021 Precipitation Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Driest/Wettest Since | Record |
|---|---|---|---|---|---|---|
| December 2021 1-Month | 2.40in (60.96mm) | 2.34in (59.44mm) | 0.06in | 64th Driest | Driest since: | 1930 |
| 67th Wettest | Wettest since: | 2015 | ||||
| Ties: 1957 | ||||||
| Nov– 2-Month | 3.70in (93.98mm) | 4.58in (116.33mm) | -0.88in | 21st Driest | Driest since: | 1976 |
| 110th Wettest | Wettest since: | 2015 | ||||
| Oct– 3-Month | 6.85in (173.99mm) | 6.74in (171.20mm) | 0.11in | 67th Driest | Driest since: | 1917 |
| 64th Wettest | Wettest since: | 2015 | ||||
| Sep– 4-Month | 9.24in (234.70mm) | 9.22in (234.19mm) | 0.02in | 59th Driest | Driest since: | 1939 |
| 72nd Wettest | Wettest since: | 2018 | ||||
| Aug– 5-Month | 12.38in (314.45mm) | 11.84in (300.74mm) | 0.54in | 81st Driest | Driest since: | 1917 |
| 50th Wettest | Wettest since: | 2018 | ||||
| Jul– 6-Month | 15.78in (400.81mm) | 14.62in (371.35mm) | 1.16in | 101st Driest | Driest since: | 1917 |
| 30th Wettest | Wettest since: | 2018 | ||||
| Jun– 7-Month | 18.75in (476.25mm) | 17.54in (445.52mm) | 1.21in | 98th Driest | Driest since: | 1917 |
| 33rd Wettest | Wettest since: | 2018 | ||||
| May– 8-Month | 21.73in (551.94mm) | 20.45in (519.43mm) | 1.28in | 93rd Driest | Driest since: | 1917 |
| 38th Wettest | Wettest since: | 2015 | ||||
| Apr– 9-Month | 23.79in (604.27mm) | 22.96in (583.18mm) | 0.83in | 76th Driest | Driest since: | 1956 |
| 55th Wettest | Wettest since: | 2015 | ||||
| Mar– 10-Month | 26.30in (668.02mm) | 25.47in (646.94mm) | 0.83in | 76th Driest | Driest since: | 1956 |
| 55th Wettest | Wettest since: | 2015 | ||||
| Feb– 11-Month | 28.32in (719.33mm) | 27.61in (701.29mm) | 0.71in | 73rd Driest | Driest since: | 1910 |
| 58th Wettest | Wettest since: | 2018 | ||||
| Jan– 12-Month | 30.41in (772.41mm) | 29.92in (759.97mm) | 0.49in | 71st Driest | Driest since: | 1910 |
| 60th Wettest | Wettest since: | 1973 | ||||
| Ties: 1940 | ||||||
| Jul 2020– 18-Month | 44.38in (1,127.25mm) | 44.56in | -0.18in | 55th Driest | Driest since: | 1954 |
| 75th Wettest | Wettest since: | 2019 | ||||
| Jan 2020– 24-Month | 60.79in (1,544.07mm) | 59.86in | 0.93in | 76th Driest | Driest since: | 1931 |
| 54th Wettest | Wettest since: | 2019 | ||||
| Jan 2019– 36-Month | 95.61in (2,428.49mm) | 89.81in | 5.80in | 109th Driest | Driest since: | 1956 |
| 20th Wettest | Wettest since: | 2019 | ||||
| Jan 2018– 48-Month | 130.23in (3,307.84mm) | 119.71in | 10.52in | 122nd Driest | Driest since: | 1956 |
| 6th Wettest | Wettest since: | 2019 | ||||
| Jan 2017– 60-Month | 162.52in (4,128.01mm) | 149.60in | 12.92in | 122nd Driest | Driest since: | 1956 |
| 5th Wettest | Wettest since: | 2019 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published June 2025, retrieved on July 3, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings
