West Medway, Massachusetts climate: Climate normals at a NOAA weather station
West Medway's normal year runs from 17°F January nights to 85°F July afternoons, with 50.4 inches of precipitation and 52 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.1°C, January lows of −9°C, July highs of 29°C, 1,279 mm of precipitation a year.
- NOAA stationWest Medway
- Station IDUSC00199316
- Location42.13°N 71.43°W
- Elevation210 ft (64 m)
On October 22, the normal high in West Medway is 63°F and the normal low 37°F, and the chance of measurable rain or snow is 30%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for West Medway.
- Jan 38° 17°
- Feb 41° 18°
- Mar 48° 25°
- Apr 60° 35°
- May 71° 46°
- Jun 79° 55°
- Jul 85° 61°
- Aug 83° 59°
- Sep 76° 51°
- Oct 65° 39°
- Nov 53° 31°
- Dec 43° 23°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at West Medway each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 17°F. The most precipitation falls in October (5.06 in), the least in February (3.34 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 38°F | 17°F | 27.3°F | 4.11 | 13.5 | 10 | <1 | 29 | 9 h 30 min |
| February | 41°F | 18°F | 29.4°F | 3.34 | 11.9 | 8 | <1 | 26 | 10 h 30 min |
| March | 48°F | 25°F | 36.9°F | 4.64 | 11.0 | 11 | <1 | 25 | 11 h 50 min |
| April | 60°F | 35°F | 47.7°F | 4.80 | 3.2 | 10 | <1 | 12 | 13 h 20 min |
| May | 71°F | 46°F | 58.2°F | 3.94 | 0.0 | 11 | 1 | 2 | 14 h 30 min |
| June | 79°F | 55°F | 67.3°F | 4.47 | 0.0 | 9 | 4 | <1 | 15 h 10 min |
| July | 85°F | 61°F | 72.7°F | 3.47 | 0.0 | 9 | 6 | <1 | 15 h |
| August | 83°F | 59°F | 71.2°F | 3.94 | 0.0 | 9 | 5 | <1 | 14 h |
| September | 76°F | 51°F | 63.5°F | 4.18 | 0.0 | 9 | 1 | 1 | 12 h 30 min |
| October | 65°F | 39°F | 51.9°F | 5.06 | 0.1 | 9 | <1 | 11 | 11 h 10 min |
| November | 53°F | 31°F | 42.0°F | 3.77 | 1.6 | 9 | <1 | 19 | 9 h 50 min |
| December | 43°F | 23°F | 33.1°F | 4.65 | 10.2 | 9 | <1 | 27 | 9 h 10 min |
| Year (annual) | 62°F | 38°F | 50.1°F | 50.37 | 51.5 | 113 | 17 | 152 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −9°C | −2.6°C | 104 mm | 34 cm |
| February | 5°C | −8°C | −1.4°C | 85 mm | 30 cm |
| March | 9°C | −4°C | 2.7°C | 118 mm | 28 cm |
| April | 16°C | 2°C | 8.7°C | 122 mm | 8 cm |
| May | 22°C | 8°C | 14.6°C | 100 mm | 0 cm |
| June | 26°C | 13°C | 19.6°C | 114 mm | 0 cm |
| July | 29°C | 16°C | 22.6°C | 88 mm | 0 cm |
| August | 28°C | 15°C | 21.8°C | 100 mm | 0 cm |
| September | 25°C | 10°C | 17.5°C | 106 mm | 0 cm |
| October | 18°C | 4°C | 11.1°C | 129 mm | 0 cm |
| November | 12°C | −1°C | 5.6°C | 96 mm | 4 cm |
| December | 6°C | −5°C | 0.6°C | 118 mm | 26 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00199316; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at West Medway?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, July has the fewest days with rain (9).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00199316.
When is the last frost at West Medway?
In West Medway, the last spring frost (32°F) comes after April 30 in half of years and after May 14 in one year in ten; the first autumn frost comes before October 9 in half of years and before September 29 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 301 year in 10 after May 14; 9 in 10 after April 17
- First autumn frost, half of years before
- October 91 year in 10 before September 29; 9 in 10 before October 23
NOAA puts the median frost-free season at 162 days, and the season without a hard freeze (28°F) at 187 days.
A hard freeze (28°F) comes after April 16 in half of springs and before October 22 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts West Medway in zone 6b in ZIP code 02053, the nearest ZIP area.
Frost dates for every NOAA station in Massachusetts · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00199316; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at West Medway?
In a normal year in West Medway, 17 days a year reach 90°F, 152 nights fall to 32°F or colder and 113 days bring measurable precipitation.
- Days at 90°F or more
- 17a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 152a normal year
- Days that stay below freezing
- 19high of 32°F or less
- Days with 0.01 inch of precipitation
- 113a normal year
- Days with 1 inch of snow or more
- 13a normal year
The highest temperature in this station's record (since 1957) is 104°F, on August 3, 1975; the lowest is −25°F, on January 18, 1957.
The wettest calendar year on that record is 1983, with 64.04 in; the snowiest season is 1995–96, with 111.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00199316; records: ACIS (NOAA Regional Climate Centers), station USC00199316. Records use complete months only; a month missing more than three days is left out.
How sunny is it at West Medway?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds at West Medway, 3.8 kWh per square metre a day. August is the sunniest month (78%) and December the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 1.8 |
| February | 70% | 2.7 |
| March | 69% | 3.7 |
| April | 69% | 4.7 |
| May | 68% | 5.3 |
| June | 71% | 5.7 |
| July | 78% | 6.0 |
| August | 78% | 5.3 |
| September | 77% | 4.3 |
| October | 68% | 2.8 |
| November | 70% | 2.0 |
| December | 66% | 1.5 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does West Medway record?
A normal year at West Medway brings 6,066 heating degree days, 13% more than the median U.S. place (5,373), and 665 cooling degree days, 27% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,782 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,167 | 0 |
| February | 997 | 0 |
| March | 871 | 0 |
| April | 521 | 2 |
| May | 235 | 26 |
| June | 55 | 122 |
| July | 5 | 242 |
| August | 11 | 201 |
| September | 113 | 68 |
| October | 411 | 4 |
| November | 690 | 0 |
| December | 990 | 0 |
| Year (annual) | 6,066 | 665 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00199316. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does West Medway's climate compare?
West Medway is warmer than 20 of the 35 places with their own NOAA record in Massachusetts, and wetter than 30. Across the 7,247 U.S. stations with normals, its annual mean of 50.1°F is warmer than 40%.
In the Köppen classification computed from these normals, West Medway is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near West Medway share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Cumberland Hill, RI8,638 people · 11 mi S
- Millis-Clicquot, MA4,479 people · 5 mi NE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about West Medway's climate
What is the coldest month at West Medway?
January, with a normal high of 38°F and a normal low of 17°F. The warmest is July (85°F by day, 61°F at night).
Does it snow at West Medway?
Yes: 52 inches in a normal year, falling on 19 days with 0.1 inch or more, the most in January (13.5 inches).
What is the rainiest month at West Medway?
October, with 5.06 in of precipitation in a normal year; the driest is February with 3.34 in.
What plant hardiness zone is West Medway in?
The USDA's 2023 map puts West Medway in zone 6b in ZIP code 02053, the nearest ZIP area.
How late can frost come at West Medway?
In half of years the last 32°F night comes after April 30; in one year in ten it comes after May 14. Waiting until May 14 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Massachusetts climateThe statewide normals and every place in the state
- Walpole, MA10 miles from this station, 50.8°F a year
- Woonsocket, RI11 miles from this station, 51.1°F a year
- Natick, MA11 miles from this station, 48.9°F a year
- Norwood, MA14 miles from this station, 52.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made