McCormack Slough Rainfall Forecast

Today 29 Jun
25%
Tue 30 Jun
No Rain
Wed 1 Jul
No Rain
Thu 2 Jul
No Rain
Fri 3 Jul
No Rain
Sat 4 Jul
No Rain
Sun 5 Jul
No Rain

McCormack Slough Rainfall Statistics

June Rainfall

Hermiston, Hermiston Municipal Airport (16.2 miles)

Total Rainfall 2026
4.2in
Daily Average 2026
0.02in
Wettest Day 8 February, 2026
0.7in
Wet Days 2026
33/180 (18%)
Total Rainfall May
0.1in
Daily Average May
0in
Wettest Day 13 May, 2026
0.04in
Wet Days May
4/31 (13%)
Total Rainfall June
0.1in
Daily Average June
0in
Wettest Day 26 June, 2026
0.1in
Wet Days June
3/29 (10%)

Climate (2021–2025)

Hermiston, Hermiston Municipal Airport (16.2 miles)

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Annual Average 2021–2025
9.4in
Monthly Average 2021–2026
0.8in
Daily Average 2021–2026
0.03in
Wettest Day 5 May, 2024
1.1in

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