West Wareham has chilly, snowy winters and pleasant summers, with plenty of rain
A typical July afternoon reaches 83°, a January night drops to 22°, and about 31 inches of snow falls in a normal winter.
A year in West Wareham at a glance
Each month’s typical high and low, and what it brings.
What stands out about West Wareham’s climate
Read from where West Wareham sits among Massachusetts’s towns. The page puts what stands out first.
31 inches of snow, 51 of rain and melt
March is the wettest month and July the driest. Rain or snow falls on about 123 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
What a year in West Wareham feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 180 frost-free days a year
In half of years the last 32° night comes by April 23 and the first by October 21.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with West Wareham’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
180 frost-free days. The last frost comes by Apr 23 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 21.
About 31" a winter over 8 days with an inch or more, most in January. Snow covers the ground about 28 days a year.
Months averaging under 55° run from October through April. Heating is 90% of the year’s heating-and-cooling load.
About 10 days a year reach 90°, and July afternoons average 83°.
The nicest months are May, June, July, August, September and October.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →West Wareham and its neighbors
Rochester has the coldest January nights next door (21°) and Rochester the hottest July afternoons (83°). Tap a town to see its climate.
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.
Warmer than it used to be
The last 30 years in West Wareham averaged 1.9° warmer than the 1900s. The biggest change is in December (+3.3°).
A bigger shift than in 92% of U.S. towns.
Change by month
How West Wareham compares
Against every U.S. town on TownTapestry, each counted once, with its place in Massachusetts.
West Wareham weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 39° | 22° | 4.2" | 10.7" | 11 | 10 | 21° – 37° |
| February | 40° | 23° | 3.7" | 9.0" | 9 | 9 | 19° – 38° |
| March | 47° | 28° | 5.4" | 4.5" | 11 | 5 | 32° – 45° |
| April | 57° | 37° | 4.5" | 0.6" | 11 | 0 | 43° – 52° |
| May | 68° | 47° | 3.6" | 0 | 11 | 0 | 51° – 61° |
| June | 77° | 56° | 3.8" | 0 | 10 | 0 | 63° – 69° |
| July | 83° | 63° | 3.2" | 0 | 9 | 0 | 68° – 77° |
| August | 81° | 62° | 3.7" | 0 | 9 | 0 | 68° – 75° |
| September | 74° | 54° | 4.1" | 0 | 9 | 0 | 61° – 68° |
| October | 63° | 44° | 5.0" | 0 | 10 | 0 | 50° – 59° |
| November | 53° | 35° | 4.5" | 0.1" | 10 | 0 | 39° – 48° |
| December | 44° | 27° | 4.9" | 5.9" | 12 | 4 | 29° – 46° |
| Year | 60° | 41° | 50.6" | 30.8" | 123 | 28 |
Heating and cooling a home in West Wareham
90% of the work is heating, so the furnace matters far more than the air conditioner.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 19° to 38°. June is the most reliable, staying within 6°.
Common questions about West Wareham’s climate
What is the coldest month in West Wareham?
January, with a typical high of 39° and a low of 22°.
What is the hottest month in West Wareham?
July, with a typical high of 83° and a low of 63°. About 10 days a year reach 90°.
How much snow does West Wareham get?
About 31 inches in a normal winter, most of it in January.
When is the first frost in West Wareham?
In half of years the first 32° night comes by October 21, and the last spring frost by April 23.
What is the rainiest month in West Wareham?
March, with 5.4 inches of rain and melted snow. The year totals 51 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in West Wareham.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for West Wareham itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Rochester, MA (8 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.