Science Science 4 Everyone: Measurements show 480 billion gallons of rain fell on DC area May 18, 2025 12:34 pm @nbcwashington 0 Min Read SHARE Major storms hit the D.C. area with a lot of rain recently. Storm Team4’s Ryan Miller explains how weather officials measure rainfall amounts. This post was originally published on this site Previous Article 12 farmers markets in and around Ann Arbor to check out this growing season Next Article Exploring science without walls in an unconventional Israeli museum