Groveland, Massachusetts climate: Climate normals at a NOAA weather station
Groveland's normal year runs from 17°F January nights to 83°F July afternoons, with 49.0 inches of precipitation and 67 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.6°C, January lows of −8°C, July highs of 28°C, 1,244 mm of precipitation a year.
- NOAA stationGroveland
- Station IDUSC00193276
- Location42.75°N 71.04°W
- Elevation30 ft (9 m)
On October 22, the normal high in Groveland is 60°F and the normal low 38°F, and the chance of measurable rain or snow is 35%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Groveland.
- Jan 35° 17°
- Feb 38° 19°
- Mar 46° 26°
- Apr 58° 36°
- May 69° 46°
- Jun 78° 56°
- Jul 83° 62°
- Aug 81° 60°
- Sep 73° 52°
- Oct 62° 41°
- Nov 51° 32°
- Dec 41° 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 Groveland each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 17°F. The most precipitation falls in March (4.95 in), the least in August (3.37 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 35°F | 17°F | 26.3°F | 3.70 | 17.9 | 12 | <1 | 29 | 9 h 20 min |
| February | 38°F | 19°F | 28.5°F | 3.61 | 17.2 | 11 | <1 | 26 | 10 h 30 min |
| March | 46°F | 26°F | 35.8°F | 4.95 | 14.4 | 12 | <1 | 24 | 11 h 50 min |
| April | 58°F | 36°F | 47.0°F | 4.16 | 2.4 | 11 | <1 | 12 | 13 h 20 min |
| May | 69°F | 46°F | 57.4°F | 3.83 | 0.0 | 13 | 1 | 2 | 14 h 40 min |
| June | 78°F | 56°F | 66.6°F | 4.20 | 0.0 | 12 | 3 | <1 | 15 h 20 min |
| July | 83°F | 62°F | 72.3°F | 3.56 | 0.0 | 10 | 6 | <1 | 15 h |
| August | 81°F | 60°F | 70.5°F | 3.37 | 0.0 | 9 | 3 | <1 | 14 h |
| September | 73°F | 52°F | 62.8°F | 4.08 | 0.0 | 9 | 1 | <1 | 12 h 30 min |
| October | 62°F | 41°F | 51.1°F | 4.92 | 0.4 | 11 | <1 | 8 | 11 h 10 min |
| November | 51°F | 32°F | 41.0°F | 3.88 | 1.8 | 11 | <1 | 18 | 9 h 50 min |
| December | 41°F | 23°F | 31.8°F | 4.72 | 13.0 | 12 | <1 | 27 | 9 h |
| Year (annual) | 60°F | 39°F | 49.3°F | 48.98 | 67.1 | 130 | 13 | 147 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −8°C | −3.2°C | 94 mm | 45 cm |
| February | 3°C | −7°C | −1.9°C | 92 mm | 44 cm |
| March | 8°C | −3°C | 2.1°C | 126 mm | 37 cm |
| April | 15°C | 2°C | 8.3°C | 106 mm | 6 cm |
| May | 21°C | 8°C | 14.1°C | 97 mm | 0 cm |
| June | 25°C | 13°C | 19.2°C | 107 mm | 0 cm |
| July | 28°C | 16°C | 22.4°C | 90 mm | 0 cm |
| August | 27°C | 15°C | 21.4°C | 86 mm | 0 cm |
| September | 23°C | 11°C | 17.1°C | 104 mm | 0 cm |
| October | 17°C | 5°C | 10.6°C | 125 mm | 1 cm |
| November | 10°C | 0°C | 5.0°C | 99 mm | 5 cm |
| December | 5°C | −5°C | −0.1°C | 120 mm | 33 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00193276; 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 Groveland?
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 (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 USC00193276.
When is the last frost at Groveland?
In Groveland, the last spring frost (32°F) comes after May 3 in half of years and after May 17 in one year in ten; the first autumn frost comes before October 8 in half of years and before September 28 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
- May 31 year in 10 after May 17; 9 in 10 after April 22
- First autumn frost, half of years before
- October 81 year in 10 before September 28; 9 in 10 before October 23
NOAA puts the median frost-free season at 158 days, and the season without a hard freeze (28°F) at 182 days.
A hard freeze (28°F) comes after April 21 in half of springs and before October 20 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Groveland in zone 6a in ZIP code 01834, 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 −7°F (28 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 USC00193276; 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 Groveland?
In a normal year in Groveland, 13 days a year reach 90°F, 147 nights fall to 32°F or colder and 130 days bring measurable precipitation.
- Days at 90°F or more
- 13a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 147a normal year
- Days that stay below freezing
- 30high of 32°F or less
- Days with 0.01 inch of precipitation
- 130a normal year
- Days with 1 inch of snow or more
- 16a normal year
The highest temperature in this station's record (since 1992) is 100°F, on June 24, 2025; the lowest is −22°F, on January 27, 1994.
The wettest calendar year on that record is 2023, with 67.60 in; the snowiest season is 1995–96, with 124.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00193276; records: ACIS (NOAA Regional Climate Centers), station USC00193276. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Groveland?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds at Groveland, 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 Groveland record?
A normal year at Groveland brings 6,323 heating degree days, 18% more than the median U.S. place (5,373), and 621 cooling degree days, 32% 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 2,670 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,200 | 0 |
| February | 1,023 | 0 |
| March | 904 | 0 |
| April | 544 | 4 |
| May | 259 | 22 |
| June | 63 | 111 |
| July | 6 | 234 |
| August | 15 | 185 |
| September | 130 | 62 |
| October | 435 | 4 |
| November | 719 | 0 |
| December | 1,028 | 0 |
| Year (annual) | 6,323 | 621 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00193276. 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 Groveland been warmer than normal?
2025 averaged 49.5°F, 0.2°F above the 1991-2020 normal of 49.3°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 51.0°F | +1.7°F | 57.17 | 40.4 |
| 2022 | 50.8°F | +1.5°F | 37.55 | 48.1 |
| 2023 | 51.3°F | +2.0°F | 67.60 | 33.5 |
| 2024 | 51.1°F | +1.8°F | 43.78 | 34.3 |
| 2025 | 49.5°F | +0.2°F | 35.91 | 41.1 |
Over 31 complete years from 1993 to 2025, the station's annual mean temperature rose at a fitted 6.7°F per century (+0.37°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00193276; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Groveland's climate compare?
Groveland is warmer than 15 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 49.3°F is warmer than 37%.
In the Köppen classification computed from these normals, Groveland 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 Groveland 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.
- Hampton Beach, NH2,585 people · 16 mi NE
- Rowley, MA6,334 people · 9 mi E
- Seabrook Beach, NH909 people · 14 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 Groveland's climate
What is the coldest month at Groveland?
January, with a normal high of 35°F and a normal low of 17°F. The warmest is July (83°F by day, 62°F at night).
Does it snow at Groveland?
Yes: 67 inches in a normal year, falling on 29 days with 0.1 inch or more, the most in January (17.9 inches).
What is the rainiest month at Groveland?
March, with 4.95 in of precipitation in a normal year; the driest is August with 3.37 in.
What plant hardiness zone is Groveland in?
The USDA's 2023 map puts Groveland in zone 6a in ZIP code 01834, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −7°F (28 years, 1991-2020): zone 6a.
How late can frost come at Groveland?
In half of years the last 32°F night comes after May 3; 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
- Haverhill, MA1 miles from this station, 48.4°F a year
- Lawrence, MA4 miles from this station, 50.1°F a year
- Middleton, MA11 miles from this station, 48.3°F a year
- Beverly, MA13 miles from this station, 49.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made