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 2021
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2022) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
May 2021 1-Month |
3.40" (86.36mm) | 3.73" (94.74mm) |
-0.33" (-8.38mm) | 56th Driest | Driest since: 2020 | 1964 |
| 73rd Wettest | Wettest since: 2019 | 2018 | ||||
|
Apr–May 2021 2-Month |
6.15" (156.21mm) | 7.21" (183.13mm) |
-1.06" (-26.92mm) | 42nd Driest | Driest since: 2015 | 1963 |
| 87th Wettest | Wettest since: 2020 | 1983 | ||||
|
Mar–May 2021 3-Month |
9.57" (243.08mm) | 10.99" (279.15mm) |
-1.42" (-36.07mm) | 35th Driest | Driest since: 2013 | 1986 |
| 94th Wettest | Wettest since: 2020 | 1983 | ||||
|
Feb–May 2021 4-Month |
13.91" (353.31mm) | 13.88" (352.55mm) |
0.03" (0.76mm) | 69th Driest | Driest since: 2016 | 2006 |
| 60th Wettest | Wettest since: 2020 | 1983 | ||||
| Ties: 1978 | ||||||
|
Jan–May 2021 5-Month |
15.99" (406.15mm) | 17.23" (437.64mm) |
-1.24" (-31.49mm) | 47th Driest | Driest since: 2013 | 1969 |
| 82nd Wettest | Wettest since: 2020 | 1998 | ||||
| Ties: 1987 | ||||||
|
Dec 2020–May 2021 6-Month |
21.40" (543.56mm) | 20.52" (521.21mm) |
0.88" (22.35mm) | 83rd Driest | Driest since: 2020 | 1986 |
| 45th Wettest | Wettest since: 2019 | 1984 | ||||
|
Nov 2020–May 2021 7-Month |
26.16" (664.46mm) | 23.51" (597.15mm) |
2.65" (67.31mm) | 95th Driest | Driest since: 2020 | 1977 |
| 33rd Wettest | Wettest since: 2019 | 1998 | ||||
|
Oct 2020–May 2021 8-Month |
30.80" (782.32mm) | 26.64" (676.66mm) |
4.16" (105.66mm) | 103rd Driest | Driest since: 2020 | 1925 |
| 25th Wettest | Wettest since: 2019 | 1984 | ||||
|
Sep 2020–May 2021 9-Month |
34.82" (884.43mm) | 30.19" (766.83mm) |
4.63" (117.60mm) | 101st Driest | Driest since: 2020 | 2002 |
| 27th Wettest | Wettest since: 2019 | 2019 | ||||
|
Aug 2020–May 2021 10-Month |
43.76" (1,111.50mm) | 34.56" (877.82mm) |
9.20" (233.68mm) | 123rd Driest | Driest since: 2020 | 1931 |
| 5th Wettest | Wettest since: 2019 | 2019 | ||||
|
Jul 2020–May 2021 11-Month |
48.13" (1,222.50mm) | 38.72" (983.49mm) |
9.41" (239.01mm) | 124th Driest | Driest since: 2020 | 1931 |
| 4th Wettest | Wettest since: 2019 | 2019 | ||||
|
Jun 2020–May 2021 12-Month |
51.74" (1,314.20mm) | 42.56" (1,081.02mm) |
9.18" (233.18mm) | 123rd Driest | Driest since: 2020 | 1931 |
| 5th Wettest | Wettest since: 2019 | 2019 | ||||
|
Dec 2019–May 2021 18-Month |
72.43" (1,839.72mm) | 63.04" (1,601.22mm) |
9.39" (238.50mm) | 112th Driest | Driest since: 2020 | 1931 |
| 15th Wettest | Wettest since: 2019 | 2019 | ||||
|
Jun 2019–May 2021 24-Month |
92.36" (2,345.94mm) | 85.05" (2,160.27mm) |
7.31" (185.67mm) | 100th Driest | Driest since: 2018 | 1931 |
| 27th Wettest | Wettest since: 2020 | 2019 | ||||
|
Jun 2018–May 2021 36-Month |
154.88" (3,933.95mm) | 127.65" (3,242.31mm) |
27.23" (691.64mm) | 125th Driest | Driest since: 2020 | 1967 |
| 1st Wettest | Wettest to Date | 2021 | ||||
|
Jun 2017–May 2021 48-Month |
200.30" (5,087.62mm) | 170.18" (4,322.57mm) |
30.12" (765.05mm) | 124th Driest | Driest since: 2020 | 1966 |
| 1st Wettest | Wettest to Date | 2021 | ||||
|
Jun 2016–May 2021 60-Month |
242.15" (6,150.61mm) | 212.57" (5,399.28mm) |
29.58" (751.33mm) | 122nd Driest | Driest since: 2020 | 1969 |
| 2nd Wettest | Wettest to Date | 2022 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on October 6, 2022 from https://www.ncdc.noaa.gov/cag/