Thunder Bay Rainfall Forecast

Today 19 May
15%
Tue 20 May
5%
Wed 21 May
25%
Thu 22 May
50%
Fri 23 May
45%
Sat 24 May
25%
Sun 25 May
10%

Thunder Bay Rainfall Statistics

May Rainfall

Alpena, Alpena County Regional Airport (13 miles)

Total Rainfall 2025
9.5in
Daily Average 2025
0.1in
Wettest Day 29 March, 2025
1.1in
Wet Days 2025
64/139 (46%)
Total Rainfall April
1.4in
Daily Average April
0.1in
Wettest Day 18 April, 2025
0.6in
Wet Days April
11/30 (37%)
Total Rainfall May
1.3in
Daily Average May
0.1in
Wettest Day 1 May, 2025
0.7in
Wet Days May
4/19 (21%)

Climate (2010–Present)

Alpena, Alpena County Regional Airport (13 miles)

Take a look at our website widgetsAvailable free! Find Out More

Annual Average 2020–2024
30.8in
Monthly Average 2020–2025
2.5in
Daily Average 2020–2025
0.1in
Wettest Day 26 July, 2020
3.6in

Get WillyWeather+ to remove ads