Haverhill, Massachusetts climate: Normal weather by month, frost dates and records
Haverhill's normal year runs from 16°F January nights to 82°F July afternoons, with 49.6 inches of precipitation and 58 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 28°C, 1,259 mm of precipitation a year.
- NOAA stationHaverhill
- Station IDUSC00193505
- Location42.76°N 71.06°W
- Elevation20 ft (6 m)
- Population68,291
On October 23, the normal high in Haverhill is 59°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 Haverhill.
- Jan 35° 16°
- Feb 38° 17°
- Mar 45° 24°
- Apr 57° 34°
- May 68° 45°
- Jun 76° 54°
- Jul 82° 61°
- Aug 81° 59°
- Sep 74° 51°
- Oct 62° 40°
- Nov 51° 31°
- Dec 40° 22°
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 Haverhill each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 16°F. The most precipitation falls in October (5.32 in), the least in January (3.53 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 35°F | 16°F | 25.6°F | 3.53 | 16.2 | 11 | <1 | 29 | 9 h 20 min |
| February | 38°F | 17°F | 27.2°F | 3.59 | 15.6 | 10 | <1 | 26 | 10 h 30 min |
| March | 45°F | 24°F | 34.7°F | 4.80 | 11.9 | 11 | <1 | 24 | 11 h 50 min |
| April | 57°F | 34°F | 45.6°F | 4.29 | 1.8 | 12 | <1 | 12 | 13 h 20 min |
| May | 68°F | 45°F | 56.1°F | 4.08 | 0.0 | 13 | 1 | 1 | 14 h 40 min |
| June | 76°F | 54°F | 65.4°F | 4.23 | 0.0 | 11 | 3 | <1 | 15 h 20 min |
| July | 82°F | 61°F | 71.8°F | 3.55 | 0.0 | 10 | 6 | <1 | 15 h |
| August | 81°F | 59°F | 69.9°F | 3.76 | 0.0 | 9 | 4 | <1 | 14 h |
| September | 74°F | 51°F | 62.3°F | 4.01 | 0.0 | 9 | 1 | <1 | 12 h 30 min |
| October | 62°F | 40°F | 50.7°F | 5.32 | 0.1 | 12 | <1 | 6 | 11 h 10 min |
| November | 51°F | 31°F | 40.5°F | 3.90 | 1.4 | 11 | <1 | 18 | 9 h 50 min |
| December | 40°F | 22°F | 31.2°F | 4.52 | 10.8 | 12 | <1 | 27 | 9 h |
| Year (annual) | 59°F | 38°F | 48.4°F | 49.58 | 57.8 | 131 | 13 | 143 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −9°C | −3.6°C | 90 mm | 41 cm |
| February | 3°C | −8°C | −2.7°C | 91 mm | 40 cm |
| March | 7°C | −4°C | 1.5°C | 122 mm | 30 cm |
| April | 14°C | 1°C | 7.6°C | 109 mm | 5 cm |
| May | 20°C | 7°C | 13.4°C | 104 mm | 0 cm |
| June | 25°C | 12°C | 18.6°C | 107 mm | 0 cm |
| July | 28°C | 16°C | 22.1°C | 90 mm | 0 cm |
| August | 27°C | 15°C | 21.1°C | 96 mm | 0 cm |
| September | 23°C | 11°C | 16.8°C | 102 mm | 0 cm |
| October | 17°C | 4°C | 10.4°C | 135 mm | 0 cm |
| November | 10°C | −1°C | 4.7°C | 99 mm | 4 cm |
| December | 5°C | −5°C | −0.4°C | 115 mm | 27 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00193505; 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 Haverhill?
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 USC00193505.
When is the last frost in Haverhill?
In Haverhill, the last spring frost (32°F) comes after May 1 in half of years and after May 14 in one year in ten; the first autumn frost comes before October 12 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
- May 11 year in 10 after May 14; 9 in 10 after April 20
- First autumn frost, half of years before
- October 121 year in 10 before October 1; 9 in 10 before October 28
NOAA puts the median frost-free season at 163 days, and the season without a hard freeze (28°F) at 186 days.
A hard freeze (28°F) comes after April 19 in half of springs and before October 23 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Haverhill in zones 6a to 6b across its 3 ZIP code areas (6a in 01830, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Haverhill's NOAA station is in zone 6b: the coldest night of a typical year reaches −4°F (26 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 Massachusetts · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00193505; 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.
What hardiness zone is each Haverhill ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Haverhill's 3 ZIP code areas run from zone 6a to 6b: 2 in 6a and 1 in 6b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Haverhill?
In a normal year in Haverhill, 13 days a year reach 90°F, 143 nights fall to 32°F or colder and 131 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
- 143a normal year
- Days that stay below freezing
- 29high of 32°F or less
- Days with 0.01 inch of precipitation
- 131a normal year
- Days with 1 inch of snow or more
- 15a normal year
The highest temperature in this station's record (since 1899) is 105°F, on July 30, 1949; the lowest is −21°F, on January 22, 1984.
The wettest calendar year on that record is 1996, with 64.45 in; the snowiest season is 1995–96, with 123.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00193505; records: ACIS (NOAA Regional Climate Centers), station USC00193505. Records use complete months only; a month missing more than three days is left out.
How sunny is Haverhill?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Haverhill, 3.8 kWh per square metre a day. August is the sunniest month (78%) and December the cloudiest (66%). Among the 459 U.S. places of 50,000 or more, that ranks tied 385th (with 30 others) in sunshine.
| 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 much heating and cooling does Haverhill need?
A normal year in Haverhill brings 6,561 heating degree days, 22% more than the median U.S. place (5,373), and 556 cooling degree days, 39% 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 2,524 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,223 | 0 |
| February | 1,057 | 0 |
| March | 941 | 0 |
| April | 583 | 2 |
| May | 292 | 17 |
| June | 79 | 90 |
| July | 8 | 217 |
| August | 17 | 170 |
| September | 136 | 55 |
| October | 447 | 3 |
| November | 734 | 0 |
| December | 1,046 | 0 |
| Year (annual) | 6,561 | 556 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00193505. 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 Haverhill been warmer than normal lately?
2022 averaged 50.2°F, 1.8°F above the 1991-2020 normal of 48.4°F. 2 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 50.4°F | +2.0°F | 57.04 | 37.3 |
| 2022 | 50.2°F | +1.8°F | 37.59 | 36.9 |
Over 96 complete years from 1901 to 2025, the station's annual mean temperature rose at a fitted 3.2°F per century (+0.18°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00193505; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Haverhill's climate compare?
Haverhill is warmer than 10 of the other 34 places with their own NOAA record in Massachusetts, and wetter than 25. Across the 7,247 U.S. stations with normals, its annual mean of 48.4°F is warmer than 34%.
In the Köppen classification computed from these normals, Haverhill 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.
Questions about Haverhill's climate
What is the coldest month in Haverhill?
January, with a normal high of 35°F and a normal low of 16°F. The warmest is July (82°F by day, 61°F at night).
Does it snow in Haverhill?
Yes: 58 inches in a normal year, falling on 20 days with 0.1 inch or more, the most in January (16.2 inches).
What is the rainiest month in Haverhill?
October, with 5.32 in of precipitation in a normal year; the driest is January with 3.53 in.
What plant hardiness zone is Haverhill in?
The USDA's 2023 map puts Haverhill in zones 6a to 6b across its 3 ZIP code areas (6a in 01830, the largest). By the same method at Haverhill's NOAA station, the coldest night of a typical year reaches −4°F (26 years, 1991-2020): zone 6b.
How late can frost come in Haverhill?
In half of years the last 32°F night comes after May 1; 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
- Haverhill in OctoberThis month day by day, its records and recent years
- Massachusetts climateThe statewide normals and every place in the state
- Groveland, MA1 miles from this station, 49.3°F a year
- Lawrence, MA4 miles from this station, 50.1°F a year
- Middleton, MA12 miles from this station, 48.3°F a year
- West Hampstead, NH12 miles from this station, 47.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made