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Sanford Mills, Medway MAPhoto: John Phelan · CC BY-SA 4.0
Climate in Medway · NOAA 1991–2020 normals

Medway’s winters are colder and snowier than most of the U.S.

A typical July afternoon reaches 84°, a January night drops to 18°, and about 48 inches of snow falls in a normal winter.

More snow than 81% of U.S. towns#163Snowiest  of 321 in MA
Colder January nights than 72% of U.S. towns#156 coldest of 324 in MA
All MA rankings →

A year in Medway at a glance

Each month’s typical high and low, and what it brings.

Jan36°18° 13" snow
Feb39°19° 14" snow
Mar47°26° 9" snow
Apr59°36° Last frost ~Apr 30
May70°46° 1 day 90°+
Jun78°56° 4 days 90°+
Jul84°62° 6 days 90°+
Aug82°60° 5 days 90°+
Sep75°52° 1 day 90°+
Oct63°40° First frost ~Oct 9Wettest
Nov now52°32°
Dec42°24° 10" snow

What stands out about Medway’s climate

Compared with towns across the U.S., with Medway’s place in Massachusetts beside it.

A normal year

What a year in Medway feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
39° / 20°
12 days with 1"+ of snow
Spring
59° / 36°
Last frost around Apr 30
Summer
81° / 59°
17 days reach 90°
Fall
63° / 41°
First frost around Oct 9
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 162 frost-free days a year

In half of years the last 32° night comes by April 30 and the first by October 9. Frost and day counts come from NOAA’s station at West Medway, MA, 1.6 miles from the town’s center, at about the same height.

152
nights at or below 32° in a normal year
51st most of 323 in Massachusetts
More freezing nights than 86% of U.S. towns
7
nights at or below 0°
70th most of 323 in Massachusetts
More nights at or below 0° than 76% of U.S. towns
17
days that reach 90°
275th fewest of 323 in Massachusetts
Fewer 90° days than 55% of U.S. towns
<1
days that reach 100°
17th most of 323 in Massachusetts
More 100° days than 57% of U.S. towns
6bUSDA zone
Plant hardiness zone 6b

The 2023 USDA map puts Medway’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −4°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

29
JFMAMJJASOND

90° days by month

Average days at 90° or more

6.2
JFMAMJJASOND
Rain & snow

About 48 inches of snow a winter

Snow, measured at Milford, MA, is heaviest from January through February, about 13 inches a month. Precipitation (rain plus melted snow) adds up to 49 inches a year; October is the wettest month and February the driest. Rain or snow falls on about 130 days a year.

49"
Rain + melted snow a year
130th wettest of 324 in Massachusetts
Wetter than 80% of U.S. towns
48"
Snow in a normal winter
163rd snowiest of 321 in Massachusetts
More snow than 81% of U.S. towns

Rain + melted snow by month

Inches of water

4.9"
JFMAMJJASOND

Snowfall by month

Inches of snow

14"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Medway

90% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.

6,066 heating degree daysMore heating than 68% of U.S. towns
665 cooling degree daysLess cooling than 71% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at West Medway, MA.

Living here

Living with Medway’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

162 frost-free days in zone 6b. The last frost comes by Apr 30 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 9.

Get outside

Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October. 10 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Medway from natural hazards, river flooding is the largest share (77%); heat waves, cold waves, winter storms and ice storms together are 6%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Medway and its neighbors

Every town next door is within a degree of Medway in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

Wrentham: January low 19°, July high 83°Mendon: January low 18°, July high 83°Hopedale: January low 18°, July high 84°Blackstone: January low 18°, July high 84°Woonsocket: January low 18°, July high 83°Walpole: January low 18°, July high 84°Millis-Clicquot: January low 18°, July high 84°Medfield: January low 18°, July high 84°Sherborn: January low 18°, July high 84°Hopkinton: January low 17°, July high 83°Upton: January low 17°, July high 83°Franklin Town: January low 18°, July high 84°Bellingham: January low 18°, July high 83°Norfolk: January low 18°, July high 84°Holliston: January low 18°, July high 84°Millis: January low 18°, July high 84°Milford: January low 17°, July high 83°Medway: January low 18°, July high 84°MedwayFranklin TownBellinghamNorfolkHollistonMillisMilford
ColderMilder17° to 19°
Milford17.3° about the same
Holliston17.5° about the same
Medway17.6°
Millis17.8° about the same
Franklin Town18.1° about the same
Bellingham18.1° about the same
Norfolk18.3° about the same

Climates most like Medway’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Medway, MA18°84°49"48"
Hamptonburgh, NY18°84°47"44"
Stroudsburg, PA18°84°50"42"
Newton, NJ18°83°47"39"
Buckhannon, WV23°83°50"39"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

Warmer than it used to be

The last 30 years in Medway averaged 1.9° warmer than the 1900s. The biggest change is in December (+3.4°).

+1.9°1991–2020 vs. 1901–2000

A bigger shift than in 83% of U.S. towns.

Winter+2.6°now 30°, was 27°
Spring+1.4°now 48°, was 46°
Summer+1.9°now 70°, was 68°
Fall+1.5°now 52°, was 51°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Medway compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Medway’s place among Massachusetts’.

Summer heat84° July high
Cooler July afternoons than 63% of U.S. towns245th coolest of 324 in Massachusetts
Winter cold18° January low
Colder January nights than 72% of U.S. towns156th coldest of 324 in Massachusetts
Precipitation49" a year
Wetter than 80% of U.S. towns130th wettest of 324 in Massachusetts
Snow48" a winter
More snow than 81% of U.S. towns163rd snowiest of 321 in Massachusetts
Hot days17 days at 90°+
Fewer 90° days than 55% of U.S. towns275th fewest of 323 in Massachusetts
Freezing nights152 a year
More freezing nights than 86% of U.S. towns51st most of 323 in Massachusetts
Growing season162 frost-free days
A shorter frost-free season than 82% of U.S. towns56th shortest of 323 in Massachusetts
Month by month

Medway weather by month

Highs, lows and precipitation from NOAA’s grid at Medway’s center; snow, wet days and snow on the ground from Milford, MA. 1991–2020 normals.

MonthHighLowRain + meltSnowWet days30-yr range
January36°18°3.8"12.8"1118° – 34°
February39°19°3.4"13.6"1016° – 36°
March47°26°4.5"8.6"1131° – 45°
April59°36°4.3"2.3"1244° – 52°
May70°46°3.7"0.0"1352° – 63°
June78°56°4.2"0.0"1163° – 70°
July84°62°3.6"0.0"1168° – 77°
August82°60°3.9"0.0"1068° – 75°
September75°52°4.0"0.0"960° – 67°
October63°40°4.9"0.1"1248° – 59°
November52°32°4.0"0.7"1037° – 46°
December42°24°4.7"10.2"1126° – 43°
Year61°39°48.9"48.3"130
Year to year

How much a month can swing

A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 16° to 36°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Medway’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Medway’s center.
  • Snow: Milford, MA.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: West Medway, MA, 1.6 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Medway’s climate

What is the weather like in Medway?

A typical July afternoon reaches 84°, a January night drops to 18°, and about 48 inches of snow falls in a normal winter. Colder January nights than 72% of U.S. towns; cooler July afternoons than 63% of U.S. towns.

How cold does it get in Medway in winter?

January nights average 18°. About 152 nights a year reach 32° or below and 7 reach 0° or below. In the coldest January of the last 30 years the month averaged 18°.

How much snow does Medway get?

About 48 inches in a normal winter at Milford, MA, heaviest from January through February, about 13 inches a month.

How hot does it get in Medway?

July, with a typical high of 84° and a low of 62°. About 17 days a year reach 90° (West Medway, MA).

When is the first and last frost in Medway?

In half of years the last spring frost (32°) comes by April 30 and the first fall frost by October 9, about 162 frost-free days, at West Medway, MA.

What growing zone is Medway in?

Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −4°.

What is the best time of year to visit Medway?

By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Medway getting warmer?

Yes: 1991–2020 averaged 1.9° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 83% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Medway.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.