Epping, New Hampshire climate: Normal weather by month, frost dates and records
Epping's normal year runs from 14°F January nights to 82°F July afternoons, with 46.3 inches of precipitation and 57 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.6°C, January lows of −10°C, July highs of 28°C, 1,176 mm of precipitation a year.
- NOAA stationEpping
- Station IDUSC00272800
- Location43.03°N 71.08°W
- Elevation160 ft (49 m)
- From the centerunder 1 mile
- Population (town)7,797
- Census place2,808
On October 22, the normal high in Epping is 58°F and the normal low 36°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 Epping.
- Jan 33° 14°
- Feb 36° 16°
- Mar 44° 24°
- Apr 57° 34°
- May 68° 44°
- Jun 76° 54°
- Jul 82° 59°
- Aug 81° 57°
- Sep 73° 50°
- Oct 61° 38°
- Nov 49° 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 in Epping each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 14°F. The most precipitation falls in October (4.68 in), the least in January (3.15 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 33°F | 14°F | 23.5°F | 3.15 | 15.2 | 10 | <1 | 30 | 9 h 20 min |
| February | 36°F | 16°F | 25.6°F | 3.27 | 13.9 | 8 | <1 | 27 | 10 h 30 min |
| March | 44°F | 24°F | 33.9°F | 4.23 | 9.9 | 10 | <1 | 25 | 11 h 50 min |
| April | 57°F | 34°F | 45.4°F | 4.24 | 2.8 | 11 | <1 | 14 | 13 h 20 min |
| May | 68°F | 44°F | 56.0°F | 3.76 | 0.0 | 11 | 1 | 2 | 14 h 40 min |
| June | 76°F | 54°F | 65.1°F | 4.00 | 0.0 | 12 | 2 | <1 | 15 h 20 min |
| July | 82°F | 59°F | 70.7°F | 3.46 | 0.0 | 10 | 4 | <1 | 15 h |
| August | 81°F | 57°F | 69.1°F | 3.53 | 0.0 | 9 | 3 | <1 | 14 h |
| September | 73°F | 50°F | 61.5°F | 3.96 | 0.0 | 9 | 1 | 1 | 12 h 30 min |
| October | 61°F | 38°F | 49.5°F | 4.68 | 0.1 | 10 | <1 | 9 | 11 h 10 min |
| November | 49°F | 30°F | 39.4°F | 3.74 | 1.6 | 10 | <1 | 19 | 9 h 50 min |
| December | 38°F | 21°F | 29.4°F | 4.28 | 13.1 | 11 | <1 | 28 | 9 h |
| Year (annual) | 58°F | 37°F | 47.4°F | 46.30 | 56.6 | 120 | 11 | 154 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 0°C | −10°C | −4.7°C | 80 mm | 39 cm |
| February | 2°C | −9°C | −3.6°C | 83 mm | 35 cm |
| March | 7°C | −4°C | 1.1°C | 107 mm | 25 cm |
| April | 14°C | 1°C | 7.4°C | 108 mm | 7 cm |
| May | 20°C | 7°C | 13.3°C | 96 mm | 0 cm |
| June | 25°C | 12°C | 18.4°C | 102 mm | 0 cm |
| July | 28°C | 15°C | 21.5°C | 88 mm | 0 cm |
| August | 27°C | 14°C | 20.6°C | 90 mm | 0 cm |
| September | 23°C | 10°C | 16.4°C | 101 mm | 0 cm |
| October | 16°C | 4°C | 9.7°C | 119 mm | 0 cm |
| November | 9°C | −1°C | 4.1°C | 95 mm | 4 cm |
| December | 3°C | −6°C | −1.4°C | 109 mm | 33 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00272800; 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.
When is the best weather to visit Epping?
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 USC00272800.
When is the last frost in Epping?
In Epping, the last spring frost (32°F) comes after May 7 in half of years and after May 21 in one year in ten; the first autumn frost comes before October 4 in half of years and before September 22 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 71 year in 10 after May 21; 9 in 10 after April 25
- First autumn frost, half of years before
- October 41 year in 10 before September 22; 9 in 10 before October 17
NOAA puts the median frost-free season at 148 days, and the season without a hard freeze (28°F) at 172 days.
A hard freeze (28°F) comes after April 24 in half of springs and before October 15 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Epping in zone 6a in ZIP code 03042. By the map's own method, the average of each year's coldest night over 1991-2020, Epping's NOAA station is in zone 6a: the coldest night of a typical year reaches −9°F (27 complete years).
Frost dates for every NOAA station in New Hampshire · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00272800; 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 in Epping?
In a normal year in Epping, 11 days a year reach 90°F, 154 nights fall to 32°F or colder and 120 days bring measurable precipitation.
- Days at 90°F or more
- 11a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 154a normal year
- Days that stay below freezing
- 39high of 32°F or less
- Days with 0.01 inch of precipitation
- 120a normal year
- Days with 1 inch of snow or more
- 17a normal year
The highest temperature in this station's record (since 1963) is 100°F, on August 2, 1975; the lowest is −29°F, on February 3, 1971.
The wettest calendar year on that record is 2006, with 66.13 in; the snowiest season is 1992–93, with 129.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00272800; records: ACIS (NOAA Regional Climate Centers), station USC00272800. Records use complete months only; a month missing more than three days is left out.
How sunny is Epping?
Over a year 70% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Epping, 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 much heating and cooling does Epping need?
A normal year in Epping brings 6,865 heating degree days, 28% more than the median U.S. place (5,373), and 499 cooling degree days, 45% 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 2,417 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,286 | 0 |
| February | 1,102 | 0 |
| March | 963 | 0 |
| April | 590 | 2 |
| May | 296 | 18 |
| June | 84 | 87 |
| July | 12 | 189 |
| August | 23 | 150 |
| September | 156 | 50 |
| October | 481 | 2 |
| November | 768 | 0 |
| December | 1,104 | 0 |
| Year (annual) | 6,865 | 499 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00272800. 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.
Has Epping been warmer than normal lately?
2025 averaged 47.2°F, 0.2°F below the 1991-2020 normal of 47.4°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 49.8°F | +2.4°F | 46.84 | 29.9 |
| 2022 | 48.5°F | +1.1°F | 43.27 | 33.8 |
| 2023 | 49.8°F | +2.4°F | 54.25 | 45.6 |
| 2024 | 49.5°F | +2.1°F | 38.83 | 34.9 |
| 2025 | 47.2°F | −0.2°F | 34.77 | 53.4 |
Over 49 complete years from 1964 to 2025, the station's annual mean temperature rose at a fitted 6.1°F per century (+0.34°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00272800; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Epping's climate compare?
Epping is warmer than 21 of the other 27 places with their own NOAA record in New Hampshire, and wetter than 19. 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, Epping 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 Epping share this climate record?
Raymond 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.
- Raymond, NH11,012 people · 5 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 Epping's climate
What is the coldest month in Epping?
January, with a normal high of 33°F and a normal low of 14°F. The warmest is July (82°F by day, 59°F at night).
Does it snow in Epping?
Yes: 57 inches in a normal year, falling on 19 days with 0.1 inch or more, the most in January (15.2 inches).
What is the rainiest month in Epping?
October, with 4.68 in of precipitation in a normal year; the driest is January with 3.15 in.
What plant hardiness zone is Epping in?
The USDA's 2023 map puts Epping in zone 6a in ZIP code 03042. By the same method at Epping's NOAA station, the coldest night of a typical year reaches −9°F (27 years, 1991-2020): zone 6a.
How late can frost come in Epping?
In half of years the last 32°F night comes after May 7; in one year in ten it comes after May 21. Waiting until May 21 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
- West Hampstead, NH10 miles from this station, 47.8°F a year
- Durham, NH12 miles from this station, 47.1°F a year
- Greenland, NH13 miles from this station, 47.6°F a year
- Massabesic Lake, NH16 miles from this station, 47.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made