Marianna Floods, Droughts, Record-breaks

FLOODING

1874-August 1st-A destructive storm ravages Washington County, causing significant damage. The Reviewer and Examiner report the sweeping away of several bridges in the county due to the overflowing waters of Tenmile Creek, leaving a trail of destruction from Lone Pine to Zollarsville.

1985-Election day flood

2017-Roads upstream closed.

HISTORICAL FLOODS

1936-March (This flood became known as the Great Saint Patrick's Day Flood.)

1963-March 5 water surface rose to approx. 4.8 above the no damage stage.

1972-June 23 (Hurricane Agnes)

1975-September 24 (Hurricane Eloise)

2004-September 17 (Hurricane Ivan)

DROUGHTS

1930-October-Severe drought. Mon river dropped below 10 cubic feet per second. In Morgantown,West Virginia, and other locations the water was low enough it could be crossed on foot.

1957- Drought left the Marianna Dam with no water above, below, or over it.

1988-In July, a drought hit Marianna, Pennsylvania especially hard. In a Pittsburgh Press article titled “Drought may reap 60–80% of crops,” reporters Jim Wilhelm and Joe Smydo noted that farmers across Washington and Greene counties were facing devastating losses of up to 60–80%. In Marianna, the situation was equally dire—local officials reported the town’s reservoir held only about a two-week water supply after nearby Ten Mile Creek had stopped flowing entirely, highlighting how quickly prolonged dry conditions can threaten both agriculture and basic water access.

RECORD-BREAKING:

1956-Record-breaking drought.

2018-Wettest year on record (as of 2019).
2020-Jan 11, 72 degrees in Marianna(70 in Pittsburgh). Highest temperature in 1890 was 68 degrees at Pittsburgh International airport.

2023-Hottest year on record (as of 8-4-2024)

2024-Warmest May on record.

2024-Warmest June on record (as of June 2024).

2024-Sea surface temperatures records warm for the 15th consecutive month (as of June 2024).

August