Millis, Massachusetts Climate
United States
Pop. 8,040 Elev. 58 m / 190 ft
TZ: America/New_York (UTC-4) ·
Millis has warm summers with average highs of 85°F (29°C) in July, and frigid winters averaging 21°F (-6°C) in January. Humidity pushes the summer feels-like temperature to 92°F (33°C), while wind chill can drive winter lows to 12°F (-11°C). Rain falls on about 58 days per year (35.4 in / 900 mm total), with snow on 7 days and 39 in (1001 mm) of annual accumulation. The city averages 126 sunny days per year. Ocean water temperatures reach 69°F (20°C) in summer.
| Temperature | 85°F (29°C) high | 21°F (-6°C) low |
| Feels like | 92°F (33°C) high | 12°F (-11°C) low |
| Rain | 58 days | 35.4 in (900 mm) /yr |
| Snow | 7 days | 39.4 in (1001 mm) /yr |
| Sky | 126 sunny | 19 stormy |
| Wind | 3.4 mph (1.5 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Jun, Jul, Aug, Sep
Sky & Air by Month
Cloud cover (%)
41
Jan 59
Feb 60
Mar 66
Apr 77
May 61
Jun 58
Jul 46
Aug 56
Sep 46
Oct 48
Nov 53
Dec Humidity (%)
56
Jan 61
Feb 58
Mar 56
Apr 70
May 69
Jun 70
Jul 65
Aug 75
Sep 69
Oct 65
Nov 60
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 21 mi Laurence G Hanscom Field (BED)
Ski resort 12 mi Leo Jerome Martin Memorial Golf Course
National park 65 mi Connecticut River Greenway State Park
Mountain peak
(5,089 ft) 138 mi Mount Lincoln
Hospital 6 mi Wrentham Developmental Center
Hiking trail 5 mi White Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 35°F 2°C | 21°F -6°C | 1.2 in 31 mm | 6.1 in154 mm | 14 |
| February | 37°F 3°C | 23°F -5°C | 1.6 in 40 mm | 19.4 in493 mm | 8 |
| March | 52°F 11°C | 34°F 1°C | 3.9 in 100 mm | 0.0 in1 mm | 9 |
| April | 61°F 16°C | 43°F 6°C | 3.4 in 86 mm | 4.5 in115 mm | 7 |
| May | 68°F 20°C | 52°F 11°C | 6.5 in 164 mm | — | 4 |
| June | 79°F 26°C | 62°F 16°C | 2.7 in 69 mm | — | 9 |
| July | 85°F 29°C | 67°F 20°C | 3.1 in 78 mm | — | 9 |
| August | 80°F 26°C | 60°F 16°C | 1.7 in 43 mm | — | 16 |
| September | 74°F 24°C | 56°F 14°C | 2.7 in 69 mm | — | 10 |
| October | 63°F 17°C | 47°F 8°C | 3.9 in 98 mm | — | 17 |
| November | 50°F 10°C | 35°F 2°C | 2.4 in 60 mm | 0.1 in1 mm | 13 |
| December | 38°F 3°C | 24°F -5°C | 2.4 in 61 mm | 9.3 in236 mm | 10 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 1 |
| February | 8 | 0 |
| March | 9 | 2 |
| April | 7 | 1 |
| May | 4 | 4 |
| June | 9 | 1 |
| July | 9 | 2 |
| August | 16 | 1 |
| September | 10 | 4 |
| October | 17 | 1 |
| November | 13 | 1 |
| December | 10 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 44°F 7°C | 32°F 0°C |
| February | 39°F 4°C | 32°F 0°C |
| March | 41°F 5°C | 38°F 3°C |
| April | 47°F 8°C | 46°F 8°C |
| May | 54°F 12°C | 57°F 14°C |
| June | 66°F 19°C | 67°F 19°C |
| July | 68°F 20°C | 74°F 24°C |
| August | 69°F 20°C | 70°F 21°C |
| September | 65°F 19°C | 65°F 19°C |
| October | 63°F 17°C | 55°F 13°C |
| November | 55°F 13°C | 42°F 6°C |
| December | 48°F 9°C | 33°F 0°C |