Wentworth, New Hampshire climate: Climate normals at a NOAA weather station
Wentworth's normal year runs from 7°F January nights to 82°F July afternoons, with 42.9 inches of precipitation and 77 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.8°C, January lows of −14°C, July highs of 28°C, 1,090 mm of precipitation a year.
- NOAA stationWentworth
- Station IDUSC00279091
- Location43.87°N 71.92°W
- Elevation653 ft (199 m)
On October 23, the normal high in Wentworth is 56°F and the normal low 33°F, and the chance of measurable rain or snow is 50%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Wentworth.
- Jan 29° 7°
- Feb 33° 8°
- Mar 42° 17°
- Apr 56° 29°
- May 68° 40°
- Jun 77° 50°
- Jul 82° 55°
- Aug 81° 53°
- Sep 73° 46°
- Oct 59° 35°
- Nov 46° 25°
- Dec 35° 16°
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 Wentworth each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 7°F. The most precipitation falls in October (4.66 in), the least in February (2.30 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 29°F | 7°F | 18.2°F | 2.75 | 17.8 | 12 | <1 | 30 | 9 h 10 min |
| February | 33°F | 8°F | 20.6°F | 2.30 | 20.2 | 10 | <1 | 28 | 10 h 30 min |
| March | 42°F | 17°F | 29.8°F | 3.01 | 13.3 | 9 | <1 | 28 | 11 h 50 min |
| April | 56°F | 29°F | 42.3°F | 3.35 | 3.2 | 11 | <1 | 21 | 13 h 20 min |
| May | 68°F | 40°F | 54.3°F | 3.56 | 0.1 | 15 | 1 | 4 | 14 h 40 min |
| June | 77°F | 50°F | 63.3°F | 4.12 | 0.0 | 16 | 2 | <1 | 15 h 30 min |
| July | 82°F | 55°F | 68.6°F | 4.61 | 0.0 | 16 | 5 | <1 | 15 h 10 min |
| August | 81°F | 53°F | 66.9°F | 3.87 | 0.0 | 14 | 2 | <1 | 14 h |
| September | 73°F | 46°F | 59.5°F | 3.62 | 0.0 | 11 | 1 | 1 | 12 h 40 min |
| October | 59°F | 35°F | 46.9°F | 4.66 | 0.8 | 17 | <1 | 10 | 11 h 10 min |
| November | 46°F | 25°F | 35.8°F | 3.50 | 3.0 | 12 | <1 | 26 | 9 h 40 min |
| December | 35°F | 16°F | 25.4°F | 3.55 | 18.1 | 13 | <1 | 29 | 9 h |
| Year (annual) | 57°F | 32°F | 44.3°F | 42.90 | 76.5 | 157 | 10 | 178 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −1°C | −14°C | −7.7°C | 70 mm | 45 cm |
| February | 1°C | −13°C | −6.3°C | 58 mm | 51 cm |
| March | 6°C | −8°C | −1.2°C | 76 mm | 34 cm |
| April | 13°C | −2°C | 5.7°C | 85 mm | 8 cm |
| May | 20°C | 5°C | 12.4°C | 90 mm | 0 cm |
| June | 25°C | 10°C | 17.4°C | 105 mm | 0 cm |
| July | 28°C | 13°C | 20.3°C | 117 mm | 0 cm |
| August | 27°C | 12°C | 19.4°C | 98 mm | 0 cm |
| September | 23°C | 8°C | 15.3°C | 92 mm | 0 cm |
| October | 15°C | 2°C | 8.3°C | 118 mm | 2 cm |
| November | 8°C | −4°C | 2.1°C | 89 mm | 8 cm |
| December | 2°C | −9°C | −3.7°C | 90 mm | 46 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00279091; 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 Wentworth?
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 (11).
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 USC00279091.
When is the last frost at Wentworth?
In Wentworth, the last spring frost (32°F) comes after May 12 in half of years and after May 25 in one year in ten; the first autumn frost comes before October 6 in half of years and before September 23 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 121 year in 10 after May 25; 9 in 10 after April 30
- First autumn frost, half of years before
- October 61 year in 10 before September 23; 9 in 10 before October 22
NOAA puts the median frost-free season at 146 days, and the season without a hard freeze (28°F) at 172 days.
A hard freeze (28°F) comes after April 30 in half of springs and before October 20 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Wentworth in zone 5a in ZIP code 03282, the nearest ZIP area.
Frost dates for every NOAA station in New Hampshire · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00279091; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Wentworth?
In a normal year in Wentworth, 10 days a year reach 90°F, 178 nights fall to 32°F or colder and 157 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
- 178a normal year
- Days that stay below freezing
- 52high of 32°F or less
- Days with 0.01 inch of precipitation
- 157a normal year
- Days with 1 inch of snow or more
- 21a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00279091.
How sunny is it at Wentworth?
Over a year 70% of the sunlight that would reach the ground under clear skies gets through the clouds at Wentworth, 3.7 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% | 1.7 |
| February | 68% | 2.5 |
| March | 68% | 3.6 |
| April | 68% | 4.6 |
| May | 67% | 5.2 |
| June | 70% | 5.6 |
| July | 76% | 5.8 |
| August | 77% | 5.2 |
| September | 77% | 4.2 |
| October | 66% | 2.7 |
| November | 66% | 1.8 |
| December | 62% | 1.3 |
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 Wentworth record?
A normal year at Wentworth brings 7,847 heating degree days, 46% more than the median U.S. place (5,373), and 333 cooling degree days, 63% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,062 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,450 | 0 |
| February | 1,244 | 0 |
| March | 1,091 | 0 |
| April | 683 | 0 |
| May | 341 | 7 |
| June | 108 | 56 |
| July | 21 | 133 |
| August | 38 | 97 |
| September | 207 | 40 |
| October | 561 | 1 |
| November | 876 | 0 |
| December | 1,228 | 0 |
| Year (annual) | 7,847 | 333 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00279091. 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 Wentworth been warmer than normal?
2021 averaged 46.5°F, 2.2°F above the 1991-2020 normal of 44.3°F.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 46.5°F | +2.2°F | 40.05 | 44.4 |
Source: observed years: ACIS, station USC00279091. A year counts only with all twelve months complete.
How does Wentworth's climate compare?
Wentworth is warmer than 8 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 44.3°F is warmer than 17%.
In the Köppen classification computed from these normals, Wentworth 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 Wentworth share this climate record?
Fairlee 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.
- Fairlee, VT1,033 people · 12 mi W
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 Wentworth's climate
What is the coldest month at Wentworth?
January, with a normal high of 29°F and a normal low of 7°F. The warmest is July (82°F by day, 55°F at night).
Does it snow at Wentworth?
Yes: 77 inches in a normal year, falling on 38 days with 0.1 inch or more, the most in February (20.2 inches).
What is the rainiest month at Wentworth?
October, with 4.66 in of precipitation in a normal year; the driest is February with 2.30 in.
What plant hardiness zone is Wentworth in?
The USDA's 2023 map puts Wentworth in zone 5a in ZIP code 03282, the nearest ZIP area.
How late can frost come at Wentworth?
In half of years the last 32°F night comes after May 12; in one year in ten it comes after May 25. Waiting until May 25 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
- Benton (5 mi SW), NH12 miles from this station, 42.6°F a year
- Plymouth, NH14 miles from this station, 43.4°F a year
- Lincoln, NH17 miles from this station, 44.0°F a year
- Union Village Dam, VT18 miles from this station, 44.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made