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New Hampshire County Rainfall Frequency Data

County or Area Rainfall Amounts in Inches by Frequency
County or Area 1 Year Inches 2 Years Inches 5 Years Inches 10 Years Inches 25 Years Inches 50 Years Inches 100 Years Inches
Belknap 2.4 2.8 3.7 4.1 5.0 5.5 6.1
Carroll - South 2.5 2.9 3.8 4.3 5.2 5.5 6.2
Carroll - North 3.0 3.3 4.3 5.0 5.7 6.2 6.6
Cheshire 2.4 2.8 3.7 4.2 5.0 5.6 6.3
Coos - South 3.0 3.5 4.1 4.8 5.6 6.2 6.8
Coos - North 2.4 3.0 3.5 4.2 4.9 5.3 6.1
Grafton 2.4 2.7 3.6 4.2 4.9 5.2 5.9
Hillsborough 2.5 2.9 3.8 4.3 5.1 5.7 6.3
Merrimack 2.4 2.8 3.7 4.2 5.0 5.6 6.2
Rockingham 2.5 3.0 3.8 4.3 5.2 5.7 6.4
Strafford 2.5 3.0 3.8 4.3 5.1 5.6 6.3
Sullivan 2.3 2.7 3.6 4.1 4.8 5.3 6.0