GAUGE · SRGHBS
Precipitation Record
How wet is this year at HBS, really?
Every weekday morning the gauge is read by hand and checked against the tipping bucket. Pick any two years below and compare them — rainfall stacks up in the cylinders, builds across the calendar, and fills in day by day.
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The race to fill the gauge
Running total from Jan 1 onward — hover to read any dateMonth by month
Hover any pair for the exact totals and the gap between themEvery reading, day by day
The numbers behind each year
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Five Years of Rain — every drop the SRGHBS rain gauge caught from November 2020 through December 2025, read by hand around 9 a.m. each day. Press play to watch the record accumulate, month by month.
Source: SRGHBS Standard Rain & Snow Gauge · 472.7 in / 12,006 mm total · Nov 2020 – Dec 2025
Between November 2020 and December 2025, the SRGHBS standard rain-and-snow gauge at Highlands Biological Station recorded a total of 472.7 inches — about 12,006 millimetres, or nearly 40 feet — of precipitation, read by hand at roughly 9 a.m. each day. Across full calendar years the totals ranged from 68.8 inches in 2023, the driest year, to 102.4 inches in 2022, the wettest, with 2021 at 99.9, 2024 at 101.1, and 2025 at 87.0 inches. The single wettest month on record was September 2024 at 25.1 inches, roughly 637 millimetres — more than the months on either side combined, with over half of that total falling on two consecutive days, 8.6 inches then 10.8 inches, as Hurricane Helene reached the region. Averaged across the five years, the wettest months are March at 10.3 inches and September at 11.0 inches, while June at 4.9 inches, October at 5.0 inches, and November at 5.0 inches are the driest.