West Greenwich, RI climate
West Greenwich has chilly, snowy winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 82°, a January night drops to 20°, and about 35 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in West Greenwich feels like
Winter
Spring
Summer
Fall
West Greenwich 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 | 37° | 20° | 4.1" | 10.0" | 11 | 10 | 20° – 35° |
| February | 40° | 21° | 3.6" | 9.9" | 9 | 9 | 17° – 37° |
| March | 47° | 28° | 5.0" | 6.2" | 10 | 5 | 32° – 45° |
| April | 58° | 37° | 4.5" | 1.1" | 12 | 0 | 44° – 52° |
| May | 68° | 46° | 3.6" | 0 | 13 | 0 | 52° – 62° |
| June | 76° | 56° | 4.1" | 0 | 11 | 0 | 63° – 69° |
| July | 82° | 62° | 3.5" | 0 | 10 | 0 | 68° – 76° |
| August | 80° | 60° | 4.0" | 0 | 10 | 0 | 67° – 75° |
| September | 74° | 53° | 4.2" | 0 | 9 | 0 | 60° – 67° |
| October | 63° | 42° | 4.9" | 0.1" | 12 | 0 | 49° – 59° |
| November | 52° | 34° | 4.3" | 0.6" | 10 | 0 | 38° – 47° |
| December | 42° | 25° | 5.0" | 6.6" | 11 | 5 | 27° – 45° |
| Year | 60° | 40° | 50.5" | 34.5" | 128 | 30 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in West Greenwich
West Greenwich gets 50 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 128 days a year. Snow covers the ground about 30 days of the year.
About 159 frost-free days a year
In half of years the last 32° night comes by May 3 and the first one by October 8. That leaves about 159 frost-free days for gardens, shorter than 72% of U.S. towns.
Heating and cooling a home in West Greenwich
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In West Greenwich, 89% of that work is heating and 11% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
West Greenwich and its neighbors
West Greenwich borders 4 towns with climate data. January nights across them vary by 1.7°. Coventry has both the coldest January nights (19°) and the hottest July afternoons (82°). West Greenwich’s January low is 20° and its July high 82°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How West Greenwich compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in West Greenwich averaged 2.2° warmer than the 1900s. The biggest change is in December (+3.6°). The shift is larger than in 97% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at West Greenwich’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 17° to 37°. June is the most reliable, staying within 6°.
Common questions about West Greenwich’s climate
What is the coldest month in West Greenwich?
January, with a typical high of 37° and a low of 20°.
What is the hottest month in West Greenwich?
July, with a typical high of 82° and a low of 62°. About 9 days a year reach 90°.
How much snow does West Greenwich get?
About 35 inches in a normal winter, most of it in January.
When is the first frost in West Greenwich?
In half of years the first 32° night comes by October 8, and the last spring frost by May 3.
What is the rainiest month in West Greenwich?
December, with 5.0 inches of rain and melted snow. The year totals 50 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for West Greenwich itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Kingston, RI (11 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.