Mercer County rain reports, New Jersey
Mercer County, New Jersey has 9 reports of rain for 2026, the heaviest storm total 2.85 inches at 1 NNE Hamilton Square on September 13, 2026, reported to the National Weather Service.
as of
County standing in New Jersey
During 2026, Mercer County places 4 among 16 counties in New Jersey by number of reports filed. Mercer County accounts for 9% of the 103 reports recorded in New Jersey for this period. New Jersey's largest figure for the 2026 period came from Burlington County, at 5.24 inches. The Mercer County reports trace back to 3 storms.
| Rank among counties | 4 / 16 |
|---|---|
| Share of state reports | 9% |
| State's largest this period | 5.24 inches, Burlington |
| Distinct storms | 3 |
Each figure here comes from Local Storm Reports, and the numbers cover only the stated period. A county with more spotters can rank high on reporting volume, whatever the weather did.
Rain reports in 2026
| Amount | Place | Reported by | Time |
|---|---|---|---|
| 2.00 inches | 1 NNE Mercerville | Mesonet | , October 11, 2026 |
| 2.04 inches | 1 SE Ewing | Mesonet | , October 11, 2026 |
| 2.03 inches | 1 NNE Hamilton Square | Mesonet | , October 11, 2026 |
| 1.87 inches | Trenton Mercer Airport | ASOS | , September 28, 2026 |
| 2.34 inches | Robbinsville Twp. | Mesonet | , September 13, 2026 |
| 2.23 inches | 1 E Mercerville | Mesonet | , September 13, 2026 |
| 2.17 inches | 1 S Robbinsville Twp. | Mesonet | , September 13, 2026 |
| 2.85 inches | 1 NNE Hamilton Square | Mesonet | , September 13, 2026 |
| 2.15 inches | Mercerville | Trained Spotter | , September 13, 2026 |
An observer's name and the total they measured come with every National Weather Service Local Storm Report that lists Mercer County in the county field.
Storms behind the totals
- Rain totals for October 11, 2026 3.03 inches 1 SW Jim Thorpe, PA
- Rain totals for September 28, 2026 5.24 inches McGuire Air Force Base, NJ
- Rain totals for September 13, 2026 4.32 inches 1 NW Florham Park, NJ
Days with rain reports
National Weather Service offices file Local Storm Reports; the Iowa Environmental Mesonet of Iowa State University relays them to this page, where they appear as live spotter reports. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.