Climate at a Glance
Statewide 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.
Maryland
Precipitation Rankings, May 2018
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2022) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
May 2018 1-Month |
7.61" (193.29mm) | 3.73" (94.74mm) |
3.88" (98.55mm) | 128th Driest | Driest since: 2017 | 1964 |
| 1st Wettest | Wettest to Date | 2018 | ||||
|
Apr–May 2018 2-Month |
11.36" (288.54mm) | 7.21" (183.13mm) |
4.15" (105.41mm) | 124th Driest | Driest since: 2017 | 1963 |
| 5th Wettest | Wettest since: 2008 | 1983 | ||||
|
Mar–May 2018 3-Month |
14.14" (359.16mm) | 10.99" (279.15mm) |
3.15" (80.01mm) | 114th Driest | Driest since: 2017 | 1986 |
| 15th Wettest | Wettest since: 2008 | 1983 | ||||
|
Feb–May 2018 4-Month |
18.87" (479.30mm) | 13.88" (352.55mm) |
4.99" (126.75mm) | 122nd Driest | Driest since: 2017 | 2006 |
| 7th Wettest | Wettest since: 2003 | 1983 | ||||
|
Jan–May 2018 5-Month |
21.27" (540.26mm) | 17.23" (437.64mm) |
4.04" (102.62mm) | 114th Driest | Driest since: 2017 | 1969 |
| 15th Wettest | Wettest since: 2003 | 1998 | ||||
|
Dec 2017–May 2018 6-Month |
22.22" (564.39mm) | 20.52" (521.21mm) |
1.70" (43.18mm) | 92nd Driest | Driest since: 2017 | 1986 |
| 36th Wettest | Wettest since: 2014 | 1984 | ||||
|
Nov 2017–May 2018 7-Month |
24.18" (614.17mm) | 23.51" (597.15mm) |
0.67" (17.02mm) | 83rd Driest | Driest since: 2017 | 1977 |
| 45th Wettest | Wettest since: 2014 | 1998 | ||||
|
Oct 2017–May 2018 8-Month |
27.97" (710.44mm) | 26.64" (676.66mm) |
1.33" (33.78mm) | 87th Driest | Driest since: 2017 | 1925 |
| 41st Wettest | Wettest since: 2014 | 1984 | ||||
|
Sep 2017–May 2018 9-Month |
29.98" (761.49mm) | 30.19" (766.83mm) |
-0.21" (-5.34mm) | 64th Driest | Driest since: 2015 | 2002 |
| 64th Wettest | Wettest since: 2017 | 2019 | ||||
| Ties: 1944, 1964 | ||||||
|
Aug 2017–May 2018 10-Month |
35.55" (902.97mm) | 34.56" (877.82mm) |
0.99" (25.15mm) | 75th Driest | Driest since: 2017 | 1931 |
| 53rd Wettest | Wettest since: 2014 | 2019 | ||||
|
Jul 2017–May 2018 11-Month |
43.31" (1,100.07mm) | 38.72" (983.49mm) |
4.59" (116.58mm) | 96th Driest | Driest since: 2017 | 1931 |
| 32nd Wettest | Wettest since: 2014 | 2019 | ||||
| Ties: 1976 | ||||||
|
Jun 2017–May 2018 12-Month |
45.42" (1,153.67mm) | 42.56" (1,081.02mm) |
2.86" (72.65mm) | 83rd Driest | Driest since: 2017 | 1931 |
| 45th Wettest | Wettest since: 2016 | 2019 | ||||
|
Dec 2016–May 2018 18-Month |
65.69" (1,668.53mm) | 63.04" (1,601.22mm) |
2.65" (67.31mm) | 83rd Driest | Driest since: 2017 | 1931 |
| 44th Wettest | Wettest since: 2016 | 2019 | ||||
|
Jun 2016–May 2018 24-Month |
87.27" (2,216.66mm) | 85.05" (2,160.27mm) |
2.22" (56.39mm) | 72nd Driest | Driest since: 2009 | 1931 |
| 55th Wettest | Wettest since: 2017 | 2019 | ||||
|
Jun 2015–May 2018 36-Month |
134.83" (3,424.68mm) | 127.65" (3,242.31mm) |
7.18" (182.37mm) | 91st Driest | Driest since: 2017 | 1967 |
| 35th Wettest | Wettest since: 2016 | 2021 | ||||
|
Jun 2014–May 2018 48-Month |
175.08" (4,447.03mm) | 170.18" (4,322.57mm) |
4.90" (124.46mm) | 80th Driest | Driest since: 2009 | 1966 |
| 45th Wettest | Wettest since: 2017 | 2021 | ||||
|
Jun 2013–May 2018 60-Month |
226.61" (5,755.89mm) | 212.57" (5,399.28mm) |
14.04" (356.61mm) | 99th Driest | Driest since: 2017 | 1969 |
| 25th Wettest | Wettest since: 2016 | 2022 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on October 4, 2022 from https://www.ncdc.noaa.gov/cag/