This is for Somerville, NJ
Baseline Type
Years Covered
Average Annual Precipitation
Recent 5-Year Baseline
2021–2025
49.38 in
Recent 10-Year Baseline
2016–2025
50.13 in
Recent 20-Year Baseline
2006–2025
49.71 in
Official 30-Year Normal
1991–2020
47.77 in
Older 30-Year Normal
1981–2010
45.49 in
Key Takeaway
Even with the extreme, record-setting dryness of 2025 dragging the numbers down, the 5-year average is still 1.61 inches higher than the official 30-year climate normal. This highlights how intensely wet the "wet years" have become to keep the overall baseline elevated.
Also, for the 1st time in recorded history the 10 year avg broke 50"
We can use some dry years here and there. My backyard is alot less swampy!!