Derby Rainfall Forecast

Today 30 Jul
5%
Fri 31 Jul
No Rain
Sat 1 Aug
25%
Sun 2 Aug
60%
Mon 3 Aug
20%
Tue 4 Aug
10%
Wed 5 Aug
35%

Derby Rainfall Statistics

July Rainfall

Dunkirk, Chautauqua County / Dunkirk Airport (19.9 miles)

Total Rainfall 2026
23.9in
Daily Average 2026
0.1in
Wettest Day 31 March, 2026
1.5in
Wet Days 2026
91/211 (43%)
Total Rainfall June
4.9in
Daily Average June
0.2in
Wettest Day 11 June, 2026
1in
Wet Days June
13/30 (43%)
Total Rainfall July
0.6in
Daily Average July
0.02in
Wettest Day 21 July, 2026
0.3in
Wet Days July
7/30 (23%)

Climate (2021–2025)

Dunkirk, Chautauqua County / Dunkirk Airport (19.9 miles)

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Annual Average 2021–2025
30.1in
Monthly Average 2021–2026
2.8in
Daily Average 2021–2026
0.1in
Wettest Day 22 October, 2025
2in

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