The year started off dry but ended with a rainfall surplus. This was primarily helped by a stormy summer and tropical activity that was close to home. The First Coast was on the outer fringes of 7 tropical cyclones: (Tropical Storm Bertha- May; Hurricane Isaias- July; Tropical Storm Omar- August; Hurricane Sally- September; Hurricane Delta- October ; Hurricane Zeta- October; Hurricane Eta- November).
The outer periphery of the tropical storms and hurricanes helped produce around 15 inches rainfall for the year. About 26% of the total year's rainfall was tropically-related and the added moisture helped produce the year's overage of around 6 inches of rain.
2020's total rainfall of just over 57 inches ranks as the third wettest in the last 5 years. The year's precipitation was similar to 2018 but no where close to the more than 70 inches of rainfall that fell in 2017 thanks to Hurricane Irma.
The year 2020 fell well short of ranking in the top tier of wettest years in Jacksonville. The year with the most precipitation in Jacksonville was 1947 with more than 82 inches of rainfall! The year 1947 was known in some parts of the state as the 'Great Flood'. More on what caused all the rain in 1947: https://bit.ly/2Jswzrg
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