Massabesic Lake, New Hampshire climate: Climate normals at a NOAA weather station
Massabesic Lake's normal year runs from 13°F January nights to 81°F July afternoons, with 42.5 inches of precipitation and 53 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.6°C, January lows of −11°C, July highs of 27°C, 1,080 mm of precipitation a year.
- NOAA stationMassabesic Lake
- Station IDUSC00275211
- Location42.99°N 71.39°W
- Elevation253 ft (77 m)
On October 23, the normal high in Massabesic Lake is 57°F and the normal low 37°F, and the chance of measurable rain or snow is 32%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Massabesic Lake.
- Jan 32° 13°
- Feb 35° 15°
- Mar 43° 24°
- Apr 56° 35°
- May 67° 46°
- Jun 76° 56°
- Jul 81° 61°
- Aug 80° 59°
- Sep 73° 52°
- Oct 60° 40°
- Nov 48° 30°
- Dec 38° 21°
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 Massabesic Lake each month?
July is the warmest month, with normal highs of 81°F; January the coldest, with normal lows of 13°F. The most precipitation falls in October (4.36 in), the least in January (2.67 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 32°F | 13°F | 22.3°F | 2.67 | 15.9 | 9 | <1 | 30 | 9 h 20 min |
| February | 35°F | 15°F | 24.9°F | 2.70 | 17.6 | 7 | <1 | 28 | 10 h 30 min |
| March | 43°F | 24°F | 33.2°F | 3.19 | 6.7 | 8 | <1 | 27 | 11 h 50 min |
| April | 56°F | 35°F | 45.5°F | 3.49 | 0.9 | 10 | <1 | 15 | 13 h 20 min |
| May | 67°F | 46°F | 56.5°F | 3.37 | 0.0 | 11 | 1 | 2 | 14 h 40 min |
| June | 76°F | 56°F | 65.8°F | 4.27 | 0.0 | 11 | 2 | <1 | 15 h 20 min |
| July | 81°F | 61°F | 71.0°F | 3.65 | 0.0 | 10 | 4 | <1 | 15 h |
| August | 80°F | 59°F | 69.4°F | 3.68 | 0.0 | 9 | 3 | <1 | 14 h |
| September | 73°F | 52°F | 62.3°F | 3.87 | 0.0 | 9 | 1 | 1 | 12 h 30 min |
| October | 60°F | 40°F | 49.6°F | 4.36 | 0.0 | 10 | <1 | 9 | 11 h 10 min |
| November | 48°F | 30°F | 39.4°F | 3.49 | 1.1 | 9 | <1 | 21 | 9 h 50 min |
| December | 38°F | 21°F | 29.1°F | 3.77 | 10.6 | 9 | <1 | 29 | 9 h |
| Year (annual) | 57°F | 38°F | 47.4°F | 42.51 | 52.8 | 111 | 10 | 161 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 0°C | −11°C | −5.4°C | 68 mm | 40 cm |
| February | 2°C | −9°C | −3.9°C | 69 mm | 45 cm |
| March | 6°C | −5°C | 0.7°C | 81 mm | 17 cm |
| April | 13°C | 2°C | 7.5°C | 89 mm | 2 cm |
| May | 19°C | 8°C | 13.6°C | 86 mm | 0 cm |
| June | 24°C | 13°C | 18.8°C | 108 mm | 0 cm |
| July | 27°C | 16°C | 21.7°C | 93 mm | 0 cm |
| August | 27°C | 15°C | 20.8°C | 93 mm | 0 cm |
| September | 23°C | 11°C | 16.8°C | 98 mm | 0 cm |
| October | 15°C | 4°C | 9.8°C | 111 mm | 0 cm |
| November | 9°C | −1°C | 4.1°C | 89 mm | 3 cm |
| December | 3°C | −6°C | −1.6°C | 96 mm | 27 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00275211; 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 Massabesic 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 (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 USC00275211.
When is the last frost at Massabesic Lake?
In Massabesic Lake, the last spring frost (32°F) comes after April 30 in half of years and after May 14 in one year in ten; the first autumn frost comes before October 11 in half of years and before September 30 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 301 year in 10 after May 14; 9 in 10 after April 19
- First autumn frost, half of years before
- October 111 year in 10 before September 30; 9 in 10 before October 27
NOAA puts the median frost-free season at 164 days, and the season without a hard freeze (28°F) at 188 days.
A hard freeze (28°F) comes after April 17 in half of springs and before October 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Massabesic Lake in zone 6a in ZIP code 03109, 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 5b: the coldest night of a typical year reaches −12°F (22 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in New Hampshire · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00275211; 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 Massabesic Lake?
In a normal year in Massabesic Lake, 10 days a year reach 90°F, 161 nights fall to 32°F or colder and 111 days bring measurable precipitation.
- Days at 90°F or more
- 10a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 161a normal year
- Days that stay below freezing
- 39high of 32°F or less
- Days with 0.01 inch of precipitation
- 111a normal year
- Days with 1 inch of snow or more
- 12a normal year
The highest temperature in this station's record (since 1942) is 105°F, on August 3, 1988; the lowest is −43°F, on February 16, 1943.
The wettest calendar year on that record is 2008, with 61.50 in; the snowiest season is 1971–72, with 101.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00275211; records: ACIS (NOAA Regional Climate Centers), station USC00275211. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Massabesic Lake?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds at Massabesic Lake, 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 Massabesic Lake record?
A normal year at Massabesic Lake brings 6,907 heating degree days, 29% more than the median U.S. place (5,373), and 538 cooling degree days, 41% 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 2,496 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,322 | 0 |
| February | 1,123 | 0 |
| March | 985 | 0 |
| April | 587 | 2 |
| May | 282 | 18 |
| June | 72 | 96 |
| July | 15 | 201 |
| August | 21 | 159 |
| September | 139 | 58 |
| October | 480 | 3 |
| November | 770 | 0 |
| December | 1,111 | 0 |
| Year (annual) | 6,907 | 538 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00275211. 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 Massabesic Lake been warmer than normal?
2024 averaged 49.5°F, 2.1°F above the 1991-2020 normal of 47.4°F. 2 of the 2 complete years since 2023 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2023 | 48.8°F | +1.4°F | 59.34 | 52.5 |
| 2024 | 49.5°F | +2.1°F | 44.73 | 45.0 |
Over 52 complete years from 1942 to 2024, the station's annual mean temperature rose at a fitted 3.0°F per century (+0.16°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00275211; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Massabesic Lake's climate compare?
Massabesic Lake is warmer than 21 of the 28 places with their own NOAA record in New Hampshire, and wetter than 11. Across the 7,247 U.S. stations with normals, its annual mean of 47.4°F is warmer than 29%.
In the Köppen classification computed from these normals, Massabesic 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 Massabesic Lake share this climate record?
South Hooksett has no NOAA station with 1991-2020 normals of its 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.
- South Hooksett, NH5,806 people · 3 mi NW
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 Massabesic Lake's climate
What is the coldest month at Massabesic Lake?
January, with a normal high of 32°F and a normal low of 13°F. The warmest is July (81°F by day, 61°F at night).
Does it snow at Massabesic Lake?
Yes: 53 inches in a normal year, falling on 16 days with 0.1 inch or more, the most in February (17.6 inches).
What is the rainiest month at Massabesic Lake?
October, with 4.36 in of precipitation in a normal year; the driest is January with 2.67 in.
What plant hardiness zone is Massabesic Lake in?
The USDA's 2023 map puts Massabesic Lake in zone 6a in ZIP code 03109, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −12°F (22 years, 1991-2020): zone 5b.
How late can frost come at Massabesic Lake?
In half of years the last 32°F night comes after April 30; in one year in ten it comes after May 14. Waiting until May 14 leaves about a one-in-ten chance of a later frost.
Nearby and next
- New Hampshire climateThe statewide normals and every place in the state
- Manchester, NH4 miles from this station, 50.1°F a year
- West Hampstead, NH11 miles from this station, 47.8°F a year
- Hudson, NH14 miles from this station, 47.9°F a year
- Concord, NH16 miles from this station, 47.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made