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 January 1895. For more information, please see Climatological Rankings.
Maryland
Precipitation Rankings, September 2018
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Amomaly | Rank (1895-2018) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
September 2018 1-Month |
9.12" (231.65mm) | 3.56" (90.42mm) |
5.56" (141.23mm) | 121ˢᵗ Driest | Driest since: 2017 | 1941 |
| 4ᵗʰ Wettest | Wettest since: 1999 | 1999 | ||||
|
Aug–Sep 2018 2-Month |
14.05" (356.87mm) | 7.95" (201.93mm) |
6.10" (154.94mm) | 119ᵗʰ Driest | Driest since: 2017 | 1930 |
| 6ᵗʰ Wettest | Wettest since: 2011 | 2011 | ||||
|
Jul–Sep 2018 3-Month |
22.28" (565.91mm) | 12.13" (308.10mm) |
10.15" (257.81mm) | 124ᵗʰ Driest | Driest since: 2017 | 1930 |
| 1ˢᵗ Wettest | Wettest to Date | 2018 | ||||
|
Jun–Sep 2018 4-Month |
27.32" (693.93mm) | 15.98" (405.89mm) |
11.34" (288.04mm) | 124ᵗʰ Driest | Driest since: 2017 | 1930 |
| 1ˢᵗ Wettest | Wettest to Date | 2018 | ||||
|
May–Sep 2018 5-Month |
34.95" (887.73mm) | 19.71" (500.63mm) |
15.24" (387.10mm) | 124ᵗʰ Driest | Driest since: 2017 | 1930 |
| 1ˢᵗ Wettest | Wettest to Date | 2018 | ||||
|
Apr–Sep 2018 6-Month |
38.70" (982.98mm) | 23.19" (589.03mm) |
15.51" (393.95mm) | 124ᵗʰ Driest | Driest since: 2017 | 1930 |
| 1ˢᵗ Wettest | Wettest to Date | 2018 | ||||
|
Mar–Sep 2018 7-Month |
41.44" (1,052.58mm) | 26.97" (685.04mm) |
14.47" (367.54mm) | 124ᵗʰ Driest | Driest since: 2017 | 1930 |
| 1ˢᵗ Wettest | Wettest to Date | 2018 | ||||
|
Feb–Sep 2018 8-Month |
46.17" (1,172.72mm) | 29.86" (758.44mm) |
16.31" (414.28mm) | 124ᵗʰ Driest | Driest since: 2017 | 1930 |
| 1ˢᵗ Wettest | Wettest to Date | 2018 | ||||
|
Jan–Sep 2018 9-Month |
48.57" (1,233.68mm) | 33.21" (843.53mm) |
15.36" (390.15mm) | 124ᵗʰ Driest | Driest since: 2017 | 1930 |
| 1ˢᵗ Wettest | Wettest to Date | 2018 | ||||
|
Dec 2017–Sep 2018 10-Month |
49.52" (1,257.81mm) | 36.49" (926.85mm) |
13.03" (330.96mm) | 120ᵗʰ Driest | Driest since: 2017 | 1930 |
| 4ᵗʰ Wettest | Wettest since: 2003 | 2003 | ||||
|
Nov 2017–Sep 2018 11-Month |
51.48" (1,307.59mm) | 39.48" (1,002.79mm) |
12.00" (304.80mm) | 119ᵗʰ Driest | Driest since: 2017 | 1930 |
| 5ᵗʰ Wettest | Wettest since: 2003 | 2003 | ||||
|
Oct 2017–Sep 2018 12-Month |
55.27" (1,403.86mm) | 42.62" (1,082.55mm) |
12.65" (321.31mm) | 119ᵗʰ Driest | Driest since: 2017 | 1930 |
| 5ᵗʰ Wettest | Wettest since: 2003 | 2003 | ||||
|
Apr 2017–Sep 2018 18-Month |
81.79" (2,077.47mm) | 65.72" (1,669.29mm) |
16.07" (408.18mm) | 122ⁿᵈ Driest | Driest since: 2017 | 1966 |
| 2ⁿᵈ Wettest | Wettest since: 2004 | 2004 | ||||
|
Oct 2016–Sep 2018 24-Month |
96.21" (2,443.73mm) | 85.14" (2,162.56mm) |
11.07" (281.17mm) | 110ᵗʰ Driest | Driest since: 2017 | 1930 |
| 13ᵗʰ Wettest | Wettest since: 2011 | 2004 | ||||
|
Oct 2015–Sep 2018 36-Month |
142.34" (3,615.44mm) | 127.72" (3,244.09mm) |
14.62" (371.35mm) | 113ᵗʰ Driest | Driest since: 2017 | 1931 |
| 9ᵗʰ Wettest | Wettest since: 2005 | 2005 | ||||
|
Oct 2014–Sep 2018 48-Month |
188.30" (4,782.82mm) | 170.22" (4,323.59mm) |
18.08" (459.23mm) | 114ᵗʰ Driest | Driest since: 2017 | 1932 |
| 7ᵗʰ Wettest | Wettest since: 2006 | 2006 | ||||
|
Oct 2013–Sep 2018 60-Month |
235.93" (5,992.62mm) | 212.69" (5,402.33mm) |
23.24" (590.29mm) | 115ᵗʰ Driest | Driest since: 2017 | 1966 |
| 5ᵗʰ Wettest | Wettest since: 2007 | 1975 |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2018, retrieved on November 14, 2018 from https://www.ncdc.noaa.gov/cag/