Photo: Pmeleski at English Wikipedia · Public domainSpencer has cooler summers than 90% of U.S. towns
Nights in January average 16°. A year here swings 65° from midwinter lows to midsummer highs. It is a wet place: more rain and snow fall here than on 85% of U.S. towns. Radiators earn their keep from October to April, the months that average under 50°.
A year in Spencer at a glance
Each month’s typical high and low, and what it brings.
What stands out about Spencer’s climate
Compared with towns across the U.S., with Spencer’s place in Massachusetts beside it.
What a year in Spencer feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 181 frost-free days a year
In half of years the last 32° night comes by April 23 and the first by October 21. Frost and day counts come from NOAA’s station at Worcester Rgnl Airport, 6 miles from the town’s center, 140 ft higher.
The 2023 USDA map puts Spencer’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −6°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 73 inches of snow a winter
Snow, measured at Worcester Rgnl Airport, falls mostly in February. Precipitation (rain plus melted snow) adds up to 51 inches a year; October is the wettest month and February the driest. Rain or snow falls on about 138 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Spencer
93% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Worcester Rgnl Airport.
Living with Spencer’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
181 frost-free days in zone 6a. 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.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 48 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Spencer from natural hazards, river flooding is the largest share (56%); heat waves, cold waves, winter storms and ice storms together are 11%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Spencer and its neighbors
Oakham has the coldest January nights next door (15°, 1° colder). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Spencer’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.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Spencer, MA | 16° | 80° | 51" | 73" |
| Walton, NY | 13° | 80° | 47" | 71" |
| Topsham, ME | 13° | 79° | 48" | 67" |
| Meadville, PA | 18° | 81° | 45" | 64" |
| Elkins, WV | 21° | 82° | 50" | 69" |
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 Spencer averaged 1.7° warmer than the 1900s. The biggest change is in December (+3.6°).
A bigger shift than in 75% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Spencer compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Spencer’s place among Massachusetts’.
Spencer weather by month
Highs, lows and precipitation from NOAA’s grid at Spencer’s center; snow, wet days and snow on the ground from Worcester Rgnl Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 33° | 16° | 3.8" | 18.2" | 12 | 15° – 31° |
| February | 36° | 18° | 3.4" | 21.2" | 11 | 13° – 34° |
| March | 44° | 25° | 4.3" | 13.7" | 12 | 27° – 44° |
| April | 57° | 34° | 4.4" | 1.9" | 13 | 41° – 50° |
| May | 68° | 45° | 3.8" | 0.0" | 13 | 51° – 61° |
| June | 75° | 54° | 4.5" | 0.0" | 12 | 61° – 67° |
| July | 80° | 60° | 4.1" | 0.0" | 11 | 66° – 74° |
| August | 79° | 58° | 4.5" | 0.0" | 10 | 65° – 72° |
| September | 72° | 50° | 4.3" | 0.0" | 10 | 58° – 65° |
| October | 60° | 39° | 5.0" | 1.1" | 12 | 46° – 57° |
| November | 49° | 31° | 4.0" | 1.9" | 11 | 35° – 45° |
| December | 38° | 22° | 4.5" | 14.9" | 12 | 24° – 41° |
| Year | 58° | 38° | 50.5" | 72.9" | 138 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 13° to 34°. June is the most reliable, staying within 6°.
Where Spencer’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 Spencer’s center.
- Snow: Worcester Rgnl Airport.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Worcester Rgnl Airport, 6 miles from the town’s center, 140 ft higher; 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 Spencer’s climate
What is the weather like in Spencer?
A typical July afternoon reaches 80°, a January night drops to 16°, and about 73 inches of snow falls in a normal winter. Colder January nights than 81% of U.S. towns; cooler July afternoons than 90% of U.S. towns.
How cold does it get in Spencer in winter?
January nights average 16°. About 130 nights a year reach 32° or below and 4 reach 0° or below. In the coldest January of the last 30 years the month averaged 15°.
How much snow does Spencer get?
About 73 inches in a normal winter at Worcester Rgnl Airport, most of it in February.
How hot does it get in Spencer?
July, with a typical high of 80° and a low of 60°. About 3 days a year reach 90° (Worcester Rgnl Airport).
When is the first and last frost in Spencer?
In half of years the last spring frost (32°) comes by April 23 and the first fall frost by October 21, about 181 frost-free days, at Worcester Rgnl Airport.
What growing zone is Spencer in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −6°.
What is the best time of year to visit Spencer?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Spencer getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 75% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Spencer.
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.