Climate at a Glance
National Rankings
Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of August 2022. For more information, please see Climatological Rankings.
Contiguous U.S.
Precipitation Rankings, May 2021
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2022) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
May 2021 1-Month |
2.99" (75.95mm) | 2.91" (73.91mm) |
0.08" (2.04mm) | 72nd Driest | Driest since: 2014 | 1934 |
| 57th Wettest | Wettest since: 2020 | 2019 | ||||
| Ties: 1927 | ||||||
|
Apr–May 2021 2-Month |
5.06" (128.52mm) | 5.43" (137.92mm) |
-0.37" (-9.40mm) | 40th Driest | Driest since: 2012 | 1934 |
| 89th Wettest | Wettest since: 2020 | 1957 | ||||
|
Mar–May 2021 3-Month |
7.58" (192.53mm) | 7.94" (201.68mm) |
-0.36" (-9.15mm) | 48th Driest | Driest since: 2007 | 1925 |
| 81st Wettest | Wettest since: 2020 | 1957, 1991 | ||||
|
Feb–May 2021 4-Month |
9.61" (244.09mm) | 10.07" (255.78mm) |
-0.46" (-11.69mm) | 43rd Driest | Driest since: 2012 | 1925 |
| 86th Wettest | Wettest since: 2020 | 2019 | ||||
| Ties: 1901, 1917, 1955 | ||||||
|
Jan–May 2021 5-Month |
11.70" (297.18mm) | 12.39" (314.71mm) |
-0.69" (-17.53mm) | 39th Driest | Driest since: 2014 | 1934 |
| 90th Wettest | Wettest since: 2020 | 2019 | ||||
| Ties: 1962 | ||||||
|
Dec 2020–May 2021 6-Month |
13.75" (349.25mm) | 14.73" (374.14mm) |
-0.98" (-24.89mm) | 33rd Driest | Driest since: 2006 | 1931 |
| 95th Wettest | Wettest since: 2020 | 2019 | ||||
|
Nov 2020–May 2021 7-Month |
15.69" (398.53mm) | 16.96" (430.78mm) |
-1.27" (-32.25mm) | 30th Driest | Driest since: 2002 | 1934 |
| 98th Wettest | Wettest since: 2020 | 1983 | ||||
|
Oct 2020–May 2021 8-Month |
17.87" (453.90mm) | 19.13" (485.90mm) |
-1.26" (-32.00mm) | 27th Driest | Driest since: 2002 | 1934 |
| 101st Wettest | Wettest since: 2020 | 2019 | ||||
|
Sep 2020–May 2021 9-Month |
20.31" (515.87mm) | 21.62" (549.15mm) |
-1.31" (-33.28mm) | 30th Driest | Driest since: 2006 | 1934 |
| 98th Wettest | Wettest since: 2020 | 2019 | ||||
|
Aug 2020–May 2021 10-Month |
22.73" (577.34mm) | 24.25" (615.95mm) |
-1.52" (-38.61mm) | 27th Driest | Driest since: 2002 | 1918 |
| 101st Wettest | Wettest since: 2020 | 2019 | ||||
|
Jul 2020–May 2021 11-Month |
25.67" (652.02mm) | 27.03" (686.56mm) |
-1.36" (-34.54mm) | 31st Driest | Driest since: 2012 | 1931 |
| 97th Wettest | Wettest since: 2020 | 2019 | ||||
| Ties: 2012 | ||||||
|
Jun 2020–May 2021 12-Month |
28.40" (721.36mm) | 29.95" (760.73mm) |
-1.55" (-39.37mm) | 31st Driest | Driest since: 2013 | 1934 |
| 97th Wettest | Wettest since: 2020 | 2019 | ||||
|
Dec 2019–May 2021 18-Month |
44.65" (1,134.11mm) | 44.70" (1,135.38mm) |
-0.05" (-1.27mm) | 59th Driest | Driest since: 2013 | 1931 |
| 68th Wettest | Wettest since: 2020 | 2019 | ||||
| Ties: 1959 | ||||||
|
Jun 2019–May 2021 24-Month |
61.14" (1,552.96mm) | 59.92" (1,521.97mm) |
1.22" (30.99mm) | 76th Driest | Driest since: 2014 | 1931 |
| 51st Wettest | Wettest since: 2020 | 2020 | ||||
|
Jun 2018–May 2021 36-Month |
98.85" (2,510.79mm) | 89.88" (2,282.95mm) |
8.97" (227.84mm) | 119th Driest | Driest since: 2018 | 1955 |
| 7th Wettest | Wettest since: 2020 | 2019 | ||||
|
Jun 2017–May 2021 48-Month |
128.92" (3,274.57mm) | 119.78" (3,042.41mm) |
9.14" (232.16mm) | 113th Driest | Driest since: 2016 | 1956 |
| 12th Wettest | Wettest since: 2020 | 2019 | ||||
|
Jun 2016–May 2021 60-Month |
162.32" (4,122.93mm) | 149.64" (3,800.86mm) |
12.68" (322.07mm) | 118th Driest | Driest since: 2018 | 1957 |
| 6th Wettest | Wettest since: 2020 | 2020 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, Precipitation, published September 2022, retrieved on October 7, 2022 from https://www.ncdc.noaa.gov/cag/