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 May 2022. For more information, please see Climatological Rankings.
Maryland
Precipitation Rankings, December 2020
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2021) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
December 2020 1-Month |
5.41" (137.41mm) | 3.29" (83.57mm) |
2.12" (53.84mm) | 115th Driest | Driest since: 2019 | 1955 |
| 13th Wettest | Wettest since: 2009 | 1969 | ||||
|
Nov–Dec 2020 2-Month |
10.17" (258.32mm) | 6.27" (159.26mm) |
3.90" (99.06mm) | 120th Driest | Driest since: 2019 | 1965 |
| 8th Wettest | Wettest since: 2018 | 1972 | ||||
|
Oct–Dec 2020 3-Month |
14.81" (376.17mm) | 9.38" (238.25mm) |
5.43" (137.92mm) | 120th Driest | Driest since: 2019 | 2001 |
| 8th Wettest | Wettest since: 2018 | 2009 | ||||
|
Sep–Dec 2020 4-Month |
18.83" (478.28mm) | 12.94" (328.68mm) |
5.89" (149.60mm) | 119th Driest | Driest since: 2019 | 1930 |
| 9th Wettest | Wettest since: 2018 | 2018 | ||||
|
Aug–Dec 2020 5-Month |
27.77" (705.36mm) | 17.33" (440.18mm) |
10.44" (265.18mm) | 126th Driest | Driest since: 2019 | 1930 |
| 2nd Wettest | Wettest since: 2018 | 2018 | ||||
|
Jul–Dec 2020 6-Month |
32.14" (816.36mm) | 21.51" (546.35mm) |
10.63" (270.01mm) | 126th Driest | Driest since: 2019 | 1930 |
| 2nd Wettest | Wettest since: 2018 | 2018 | ||||
|
Jun–Dec 2020 7-Month |
35.75" (908.05mm) | 25.36" (644.14mm) |
10.39" (263.91mm) | 124th Driest | Driest since: 2019 | 1930 |
| 4th Wettest | Wettest since: 2018 | 2018 | ||||
|
May–Dec 2020 8-Month |
38.81" (985.77mm) | 29.09" (738.89mm) |
9.72" (246.88mm) | 120th Driest | Driest since: 2019 | 1930 |
| 8th Wettest | Wettest since: 2018 | 2018 | ||||
|
Apr–Dec 2020 9-Month |
43.69" (1,109.73mm) | 32.57" (827.28mm) |
11.12" (282.45mm) | 121st Driest | Driest since: 2019 | 1930 |
| 7th Wettest | Wettest since: 2018 | 2018 | ||||
|
Mar–Dec 2020 10-Month |
46.61" (1,183.89mm) | 36.35" (923.29mm) |
10.26" (260.60mm) | 120th Driest | Driest since: 2019 | 1930 |
| 8th Wettest | Wettest since: 2018 | 2018 | ||||
|
Feb–Dec 2020 11-Month |
49.80" (1,264.92mm) | 39.24" (996.70mm) |
10.56" (268.22mm) | 122nd Driest | Driest since: 2019 | 1930 |
| 6th Wettest | Wettest since: 2018 | 2018 | ||||
|
Jan–Dec 2020 12-Month |
52.84" (1,342.14mm) | 42.59" (1,081.79mm) |
10.25" (260.35mm) | 119th Driest | Driest since: 2019 | 1930 |
| 9th Wettest | Wettest since: 2018 | 2018 | ||||
|
Jul 2019–Dec 2020 18-Month |
72.14" (1,832.36mm) | 64.07" (1,627.38mm) |
8.07" (204.98mm) | 110th Driest | Driest since: 2017 | 1930 |
| 17th Wettest | Wettest since: 2019 | 2018 | ||||
| Ties: 1903 | ||||||
|
Jan 2019–Dec 2020 24-Month |
95.54" (2,426.72mm) | 85.13" (2,162.30mm) |
10.41" (264.42mm) | 110th Driest | Driest since: 2017 | 1931 |
| 17th Wettest | Wettest since: 2019 | 2004 | ||||
|
Jan 2018–Dec 2020 36-Month |
160.16" (4,068.06mm) | 127.64" (3,242.06mm) |
32.52" (826.00mm) | 125th Driest | Driest since: 2019 | 1931 |
| 1st Wettest | Wettest to Date | 2020 | ||||
|
Jan 2017–Dec 2020 48-Month |
201.37" (5,114.80mm) | 170.14" (4,321.56mm) |
31.23" (793.24mm) | 123rd Driest | Driest since: 2019 | 1966 |
| 2nd Wettest | Wettest to Date | 2021 | ||||
|
Jan 2016–Dec 2020 60-Month |
243.03" (6,172.96mm) | 212.69" (5,402.33mm) |
30.34" (770.63mm) | 122nd Driest | Driest since: 2019 | 1966 |
| 2nd Wettest | Wettest since: 1975 | 1975 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published June 2022, retrieved on June 29, 2022 from https://www.ncei.noaa.gov/cag/