East Brimfield Lake, Massachusetts climate: Climate normals at a NOAA weather station
East Brimfield Lake's normal year runs from 16°F January nights to 81°F July afternoons, with 48.6 inches of precipitation and 64 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.1°C, January lows of −9°C, July highs of 27°C, 1,235 mm of precipitation a year.
- NOAA stationEast Brimfield Lake
- Station IDUSC00192107
- Location42.11°N 72.13°W
- Elevation700 ft (213 m)
On October 23, the normal high in East Brimfield Lake is 58°F and the normal low 37°F, and the chance of measurable rain or snow is 36%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for East Brimfield Lake.
- Jan 34° 16°
- Feb 37° 17°
- Mar 44° 25°
- Apr 57° 36°
- May 68° 46°
- Jun 75° 56°
- Jul 81° 62°
- Aug 79° 60°
- Sep 72° 52°
- Oct 61° 40°
- Nov 50° 31°
- Dec 39° 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 East Brimfield Lake each month?
July is the warmest month, with normal highs of 81°F; January the coldest, with normal lows of 16°F. The most precipitation falls in October (4.85 in), the least in February (3.19 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 34°F | 16°F | 25.1°F | 3.67 | 13.4 | 13 | <1 | 29 | 9 h 30 min |
| February | 37°F | 17°F | 26.7°F | 3.19 | 16.8 | 11 | <1 | 27 | 10 h 30 min |
| March | 44°F | 25°F | 34.5°F | 4.26 | 13.6 | 12 | <1 | 26 | 11 h 50 min |
| April | 57°F | 36°F | 46.2°F | 4.32 | 3.8 | 12 | <1 | 13 | 13 h 20 min |
| May | 68°F | 46°F | 56.9°F | 3.48 | 0.0 | 14 | <1 | 1 | 14 h 30 min |
| June | 75°F | 56°F | 65.6°F | 3.86 | 0.0 | 11 | 1 | <1 | 15 h 10 min |
| July | 81°F | 62°F | 71.0°F | 4.04 | 0.0 | 11 | 2 | <1 | 15 h |
| August | 79°F | 60°F | 69.4°F | 4.41 | 0.0 | 12 | 1 | <1 | 14 h |
| September | 72°F | 52°F | 62.2°F | 4.07 | 0.0 | 10 | <1 | <1 | 12 h 30 min |
| October | 61°F | 40°F | 50.4°F | 4.85 | 0.1 | 11 | <1 | 8 | 11 h 10 min |
| November | 50°F | 31°F | 40.7°F | 3.91 | 2.0 | 11 | <1 | 19 | 9 h 50 min |
| December | 39°F | 23°F | 31.1°F | 4.56 | 13.8 | 12 | <1 | 27 | 9 h 10 min |
| Year (annual) | 58°F | 39°F | 48.3°F | 48.62 | 63.5 | 139 | 5 | 150 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −9°C | −3.8°C | 93 mm | 34 cm |
| February | 3°C | −8°C | −2.9°C | 81 mm | 43 cm |
| March | 7°C | −4°C | 1.4°C | 108 mm | 35 cm |
| April | 14°C | 2°C | 7.9°C | 110 mm | 10 cm |
| May | 20°C | 8°C | 13.8°C | 88 mm | 0 cm |
| June | 24°C | 13°C | 18.7°C | 98 mm | 0 cm |
| July | 27°C | 16°C | 21.7°C | 103 mm | 0 cm |
| August | 26°C | 15°C | 20.8°C | 112 mm | 0 cm |
| September | 22°C | 11°C | 16.8°C | 103 mm | 0 cm |
| October | 16°C | 4°C | 10.2°C | 123 mm | 0 cm |
| November | 10°C | 0°C | 4.8°C | 99 mm | 5 cm |
| December | 4°C | −5°C | −0.5°C | 116 mm | 35 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00192107; 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 East Brimfield Lake?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (10).
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 USC00192107.
When is the last frost at East Brimfield Lake?
In East Brimfield Lake, the last spring frost (32°F) comes after April 28 in half of years and after May 17 in one year in ten; the first autumn frost comes before October 15 in half of years and before October 1 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 281 year in 10 after May 17; 9 in 10 after April 14
- First autumn frost, half of years before
- October 151 year in 10 before October 1; 9 in 10 before November 1
NOAA puts the median frost-free season at 169 days, and the season without a hard freeze (28°F) at 194 days.
A hard freeze (28°F) comes after April 13 in half of springs and before October 27 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts East Brimfield Lake in zone 6a in ZIP code 01518, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 6a: the coldest night of a typical year reaches −8°F (23 complete years).
Frost dates for every NOAA station in Massachusetts · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00192107; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 East Brimfield Lake?
In a normal year in East Brimfield Lake, 5 days a year reach 90°F, 150 nights fall to 32°F or colder and 139 days bring measurable precipitation.
- Days at 90°F or more
- 5a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 150a normal year
- Days that stay below freezing
- 35high of 32°F or less
- Days with 0.01 inch of precipitation
- 139a normal year
- Days with 1 inch of snow or more
- 18a normal year
The highest temperature in this station's record (since 1962) is 101°F, on July 2, 2018; the lowest is −27°F, on January 22, 1984.
The wettest calendar year on that record is 2011, with 72.84 in; the snowiest season is 1995–96, with 135.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00192107; records: ACIS (NOAA Regional Climate Centers), station USC00192107. Records use complete months only; a month missing more than three days is left out.
How sunny is it at East Brimfield Lake?
Over a year 71% of the sunlight that would reach the ground under clear skies gets through the clouds at East Brimfield Lake, 3.8 kWh per square metre a day. August is the sunniest month (77%) and December the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 66% | 1.8 |
| February | 67% | 2.6 |
| March | 68% | 3.7 |
| April | 68% | 4.7 |
| May | 68% | 5.3 |
| June | 71% | 5.7 |
| July | 77% | 6.0 |
| August | 77% | 5.3 |
| September | 76% | 4.3 |
| October | 67% | 2.7 |
| November | 68% | 1.9 |
| December | 62% | 1.4 |
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 East Brimfield Lake record?
A normal year at East Brimfield Lake brings 6,566 heating degree days, 22% more than the median U.S. place (5,373), and 523 cooling degree days, 42% 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 2,517 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,235 | 0 |
| February | 1,071 | 0 |
| March | 946 | 0 |
| April | 566 | 2 |
| May | 272 | 19 |
| June | 73 | 93 |
| July | 10 | 196 |
| August | 19 | 155 |
| September | 136 | 53 |
| October | 458 | 4 |
| November | 729 | 0 |
| December | 1,051 | 0 |
| Year (annual) | 6,566 | 523 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00192107. 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.
Have recent years at East Brimfield Lake been warmer than normal?
2025 averaged 48.9°F, 0.6°F above the 1991-2020 normal of 48.3°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 50.4°F | +2.1°F | 55.55 | 36.3 |
| 2022 | 49.8°F | +1.5°F | 50.07 | 44.5 |
| 2023 | 51.0°F | +2.7°F | 63.92 | 22.4 |
| 2024 | 50.9°F | +2.6°F | 49.17 | – |
| 2025 | 48.9°F | +0.6°F | 44.43 | 28.5 |
Over 49 complete years from 1963 to 2025, the station's annual mean temperature rose at a fitted 4.5°F per century (+0.25°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00192107; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does East Brimfield Lake's climate compare?
East Brimfield Lake is warmer than 9 of the 35 places with their own NOAA record in Massachusetts, and wetter than 23. Across the 7,247 U.S. stations with normals, its annual mean of 48.3°F is warmer than 33%.
In the Köppen classification computed from these normals, East Brimfield Lake is Dfb: continental, no dry season, warm 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 East Brimfield Lake share this climate record?
3 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.
- Fiskdale, MA2,564 people · 1 mi NE
- East Brookfield, MA2,237 people · 9 mi NE
- Brookfield, MA3,500 people · 7 mi N
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 East Brimfield Lake's climate
What is the coldest month at East Brimfield Lake?
January, with a normal high of 34°F and a normal low of 16°F. The warmest is July (81°F by day, 62°F at night).
Does it snow at East Brimfield Lake?
Yes: 64 inches in a normal year, falling on 25 days with 0.1 inch or more, the most in February (16.8 inches).
What is the rainiest month at East Brimfield Lake?
October, with 4.85 in of precipitation in a normal year; the driest is February with 3.19 in.
What plant hardiness zone is East Brimfield Lake in?
The USDA's 2023 map puts East Brimfield Lake in zone 6a in ZIP code 01518, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −8°F (23 years, 1991-2020): zone 6a.
How late can frost come at East Brimfield Lake?
In half of years the last 32°F night comes after April 28; in one year in ten it comes after May 17. Waiting until May 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Massachusetts climateThe statewide normals and every place in the state
- Southbridge, MA4 miles from this station, 48.2°F a year
- Staffordville, CT11 miles from this station, 47.1°F a year
- Buffumville Lake, MA11 miles from this station, 48.0°F a year
- West Thompson Lake, CT16 miles from this station, 48.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made