As of Oct 13, 2026, the latest day this gauge has reported
How much rain has Mercer County, Pennsylvania, had in 2026?
34.24 inches of rain have fallen so far in 2026 at the volunteer rain gauge 2.2 miles south-southwest of Hermitage, Mercer County, through Oct 13. This gauge has no NOAA normal, so there is no usual year to compare it with.
- Rain so far
- 34.24 in
- 2025 by Oct 13
- 36.10 in
This is Mercer County’s 2026 so far, drawn as a Rain Print. Put your name and dates on it: framed $89, print $45.Get Mercer County’s 2026 rain and snow drawn as a Rain Print, with your name and dates: framed $89, print $45. Make yours
Prints of 2026 ship in January, once the full year is in.
Want another year, like the drought or the year you married? Rainfall art of any town and year.
Month by month
| Month | Rain, in |
|---|---|
| Jan 2 days not reported | 1.93 |
| Feb 11 days not reported | 0.95 |
| Mar | 3.36 |
| Apr 1 day not reported | 7.36 |
| May 1 day not reported | 4.73 |
| Jun 1 day not reported | 2.61 |
| Jul | 4.05 |
| Aug | 3.08 |
| Sep | 5.78 |
| Oct to the 13th 1 day not reported | 0.39 |
| So far | 34.24 |
2026 so far in Mercer County
- Wettest month: April, 7.36 inches.
- Biggest one-day reading: 1.68 inches on Sep 3.
- Longest dry stretch: 12 days in a row with the gauge at zero, May 26 to Jun 6.
- 2025 by the same date: 36.10 inches at the same gauge (it missed 20 days). On the 254 days both years reported, 2026 had 5.20 inches less than 2025.
- On 19 reports the observer read the gauge after more than one day. That rain counts on the day it was read, so it is in the totals but not split by day.
The station, and what usual means
The numbers come from NOAA’s daily record for the volunteer rain gauge 2.2 miles south-southwest of Hermitage (gauge ID US1PAMR0012), 12 miles from the middle of Mercer County. It reported 269 of the 286 days from Jan 1 to Oct 13; the 17 days with no report count as unknown, not as dry. Rain here means everything the gauge caught: rain, and snow melted down to water. A trace counts as zero. It is read once a day, usually in the morning, and each reading is filed under the day it was read, so an evening storm can show up on the next day.
This gauge has no NOAA normal, so this page gives no usual year or percent for it.
Why this gauge: it is the only one inside Mercer County that reported at least 90% of the days in 2026. Your own rain gauge can read differently a few miles away.
Questions
How much rain has Mercer County, Pennsylvania, had in 2026?
34.24 inches of rain have fallen so far in 2026 at the volunteer rain gauge 2.2 miles south-southwest of Hermitage, Mercer County, through Oct 13. This gauge has no NOAA normal, so there is no usual year to compare it with.
What was the wettest month in Mercer County in 2026?
April, with 7.36 inches at the volunteer rain gauge 2.2 miles south-southwest of Hermitage, counting Jan 1 through Oct 13.
What was the biggest rain in Mercer County in 2026?
1.68 inches on Sep 3, 2026, the biggest one-day reading this year through Oct 13. A reading that covers more than one day is not counted as a one-day rain.
How does 2026 compare with 2025 in Mercer County?
From Jan 1 to Oct 13, the volunteer rain gauge 2.2 miles south-southwest of Hermitage had 36.10 inches in 2025 (2025 missed 20 days) and 34.24 inches in 2026 (2026 missed 17 days). On the 254 days both years reported, 2026 had 5.20 inches less than 2025.
Next door
- Butler County 40.69 in, 120%
- Crawford County 38.78 in, 103%
- Venango County 35.32 in, 95%
- Mahoning County, OH 40.01 in, 119%
Rain in Pennsylvania, county by county · PRF insurance in Mercer County · Farmland Atlas: Mercer County