Mount Greylock Rainfall Forecast

Today 16 May
25%
Sun 17 May
20%
Mon 18 May
5%
Tue 19 May
45%
Wed 20 May
90%
Thu 21 May
25%
Fri 22 May
5%

Mount Greylock Rainfall Statistics

May Rainfall

North Adams Harriman-and-West Airport (3.7 miles)

Total Rainfall 2026
9.5in
Daily Average 2026
0.1in
Wettest Day 31 March, 2026
1.2in
Wet Days 2026
54/136 (40%)
Total Rainfall April
2.4in
Daily Average April
0.1in
Wettest Day 19 April, 2026
0.5in
Wet Days April
15/30 (50%)
Total Rainfall May
1.5in
Daily Average May
0.1in
Wettest Day 9 May, 2026
0.6in
Wet Days May
7/16 (44%)

Climate (2010–Present)

North Adams Harriman-and-West Airport (3.7 miles)

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Annual Average 2021–2025
40.9in
Monthly Average 2021–2026
3.4in
Daily Average 2021–2026
0.1in
Wettest Day 18 December, 2023
2.3in

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