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 2018
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2022) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
May 2018 1-Month |
3.02" (76.71mm) | 2.91" (73.91mm) |
0.11" (2.80mm) | 77th Driest | Driest since: 2014 | 1934 |
| 52nd Wettest | Wettest since: 2017 | 2019 | ||||
|
Apr–May 2018 2-Month |
5.48" (139.19mm) | 5.43" (137.92mm) |
0.05" (1.27mm) | 70th Driest | Driest since: 2012 | 1934 |
| 59th Wettest | Wettest since: 2017 | 1957 | ||||
|
Mar–May 2018 3-Month |
7.96" (202.18mm) | 7.94" (201.68mm) |
0.02" (0.50mm) | 66th Driest | Driest since: 2012 | 1925 |
| 63rd Wettest | Wettest since: 2017 | 1957, 1991 | ||||
| Ties: 1896, 1989 | ||||||
|
Feb–May 2018 4-Month |
10.85" (275.59mm) | 10.07" (255.78mm) |
0.78" (19.81mm) | 95th Driest | Driest since: 2014 | 1925 |
| 34th Wettest | Wettest since: 2017 | 2019 | ||||
| Ties: 1948 | ||||||
|
Jan–May 2018 5-Month |
12.70" (322.58mm) | 12.39" (314.71mm) |
0.31" (7.87mm) | 81st Driest | Driest since: 2014 | 1934 |
| 48th Wettest | Wettest since: 2017 | 2019 | ||||
|
Dec 2017–May 2018 6-Month |
14.29" (362.97mm) | 14.73" (374.14mm) |
-0.44" (-11.17mm) | 49th Driest | Driest since: 2014 | 1931 |
| 79th Wettest | Wettest since: 2017 | 2019 | ||||
|
Nov 2017–May 2018 7-Month |
15.91" (404.11mm) | 16.96" (430.78mm) |
-1.05" (-26.67mm) | 35th Driest | Driest since: 2006 | 1934 |
| 93rd Wettest | Wettest since: 2017 | 1983 | ||||
|
Oct 2017–May 2018 8-Month |
18.51" (470.15mm) | 19.13" (485.90mm) |
-0.62" (-15.75mm) | 43rd Driest | Driest since: 2014 | 1934 |
| 85th Wettest | Wettest since: 2017 | 2019 | ||||
|
Sep 2017–May 2018 9-Month |
20.78" (527.81mm) | 21.62" (549.15mm) |
-0.84" (-21.34mm) | 38th Driest | Driest since: 2006 | 1934 |
| 90th Wettest | Wettest since: 2017 | 2019 | ||||
|
Aug 2017–May 2018 10-Month |
24.20" (614.68mm) | 24.25" (615.95mm) |
-0.05" (-1.27mm) | 62nd Driest | Driest since: 2014 | 1918 |
| 66th Wettest | Wettest since: 2017 | 2019 | ||||
|
Jul 2017–May 2018 11-Month |
27.00" (685.80mm) | 27.03" (686.56mm) |
-0.03" (-0.76mm) | 62nd Driest | Driest since: 2013 | 1931 |
| 66th Wettest | Wettest since: 2017 | 2019 | ||||
|
Jun 2017–May 2018 12-Month |
30.07" (763.78mm) | 29.95" (760.73mm) |
0.12" (3.05mm) | 61st Driest | Driest since: 2013 | 1934 |
| 67th Wettest | Wettest since: 2017 | 2019 | ||||
|
Dec 2016–May 2018 18-Month |
47.73" (1,212.34mm) | 44.70" (1,135.38mm) |
3.03" (76.96mm) | 103rd Driest | Driest since: 2015 | 1931 |
| 24th Wettest | Wettest since: 2017 | 2019 | ||||
|
Jun 2016–May 2018 24-Month |
63.47" (1,612.14mm) | 59.92" (1,521.97mm) |
3.55" (90.17mm) | 104th Driest | Driest since: 2015 | 1931 |
| 23rd Wettest | Wettest since: 2017 | 2020 | ||||
|
Jun 2015–May 2018 36-Month |
98.05" (2,490.47mm) | 89.88" (2,282.95mm) |
8.17" (207.52mm) | 115th Driest | Driest since: 2016 | 1955 |
| 11th Wettest | Wettest since: 2017 | 2019 | ||||
|
Jun 2014–May 2018 48-Month |
130.19" (3,306.83mm) | 119.78" (3,042.41mm) |
10.41" (264.42mm) | 117th Driest | Driest since: 2016 | 1956 |
| 8th Wettest | Wettest since: 2017 | 2019 | ||||
|
Jun 2013–May 2018 60-Month |
160.57" (4,078.48mm) | 149.64" (3,800.86mm) |
10.93" (277.62mm) | 116th Driest | Driest since: 2017 | 1957 |
| 8th Wettest | Wettest since: 1999 | 2020 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, Precipitation, published September 2022, retrieved on September 25, 2022 from https://www.ncdc.noaa.gov/cag/