Edgartown, Massachusetts climate: Normal weather by month, frost dates and records
Edgartown's normal year runs from 26°F January nights to 80°F July afternoons, with 47.7 inches of precipitation and 25 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.3°C, January lows of −4°C, July highs of 27°C, 1,212 mm of precipitation a year.
- NOAA stationEdgartown
- Station IDUSC00192501
- Location41.39°N 70.52°W
- Elevation30 ft (9 m)
- From the centerunder 1 mile
- Population (town)5,328
- Census place752
On October 23, the normal high in Edgartown is 62°F and the normal low 46°F, and the chance of measurable rain or snow is 37%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Edgartown.
- Jan 40° 26°
- Feb 42° 27°
- Mar 46° 32°
- Apr 55° 40°
- May 65° 49°
- Jun 74° 58°
- Jul 80° 64°
- Aug 80° 64°
- Sep 74° 58°
- Oct 64° 48°
- Nov 54° 40°
- Dec 46° 31°
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 Edgartown each month?
July is the warmest month, with normal highs of 80°F; January the coldest, with normal lows of 26°F. The most precipitation falls in December (4.84 in), the least in July (2.64 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 40°F | 26°F | 32.9°F | 4.10 | 8.8 | 12 | <1 | 24 | 9 h 30 min |
| February | 42°F | 27°F | 34.1°F | 3.57 | 8.1 | 10 | <1 | 21 | 10 h 40 min |
| March | 46°F | 32°F | 39.0°F | 4.80 | 4.7 | 11 | <1 | 18 | 11 h 50 min |
| April | 55°F | 40°F | 47.5°F | 4.18 | 0.3 | 12 | <1 | 4 | 13 h 20 min |
| May | 65°F | 49°F | 56.7°F | 3.74 | 0.0 | 12 | <1 | <1 | 14 h 30 min |
| June | 74°F | 58°F | 65.7°F | 3.39 | 0.0 | 10 | <1 | <1 | 15 h 10 min |
| July | 80°F | 64°F | 72.3°F | 2.64 | 0.0 | 8 | 1 | <1 | 14 h 50 min |
| August | 80°F | 64°F | 71.9°F | 3.72 | 0.0 | 9 | 1 | <1 | 13 h 50 min |
| September | 74°F | 58°F | 66.2°F | 3.89 | 0.0 | 9 | <1 | <1 | 12 h 30 min |
| October | 64°F | 48°F | 56.1°F | 4.63 | 0.0 | 11 | <1 | 1 | 11 h 10 min |
| November | 54°F | 40°F | 47.0°F | 4.21 | 0.0 | 11 | <1 | 8 | 9 h 50 min |
| December | 46°F | 31°F | 38.4°F | 4.84 | 3.4 | 12 | <1 | 19 | 9 h 10 min |
| Year (annual) | 60°F | 45°F | 52.3°F | 47.71 | 25.3 | 128 | 2 | 95 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | −4°C | 0.5°C | 104 mm | 22 cm |
| February | 5°C | −3°C | 1.2°C | 91 mm | 21 cm |
| March | 8°C | 0°C | 3.9°C | 122 mm | 12 cm |
| April | 13°C | 4°C | 8.6°C | 106 mm | 1 cm |
| May | 18°C | 9°C | 13.7°C | 95 mm | 0 cm |
| June | 23°C | 14°C | 18.7°C | 86 mm | 0 cm |
| July | 27°C | 18°C | 22.4°C | 67 mm | 0 cm |
| August | 27°C | 18°C | 22.2°C | 94 mm | 0 cm |
| September | 23°C | 15°C | 19.0°C | 99 mm | 0 cm |
| October | 18°C | 9°C | 13.4°C | 118 mm | 0 cm |
| November | 12°C | 4°C | 8.3°C | 107 mm | 0 cm |
| December | 8°C | 0°C | 3.6°C | 123 mm | 9 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00192501; 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 Edgartown?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, July has the fewest days with rain (8).
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 USC00192501.
When is the last frost in Edgartown?
In Edgartown, the last spring frost (32°F) comes after April 17 in half of years and after May 3 in one year in ten; the first autumn frost comes before November 3 in half of years and before October 20 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 171 year in 10 after May 3; 9 in 10 after April 4
- First autumn frost, half of years before
- November 31 year in 10 before October 20; 9 in 10 before November 18
NOAA puts the median frost-free season at 199 days, and the season without a hard freeze (28°F) at 226 days.
A hard freeze (28°F) comes after April 2 in half of springs and before November 16 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Edgartown in zone 7b in ZIP code 02539, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Edgartown's NOAA station is in zone 7b: the coldest night of a typical year reaches 5°F (29 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 USC00192501; 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 Edgartown?
In a normal year in Edgartown, 2 days a year reach 90°F, 95 nights fall to 32°F or colder and 128 days bring measurable precipitation.
- Days at 90°F or more
- 2a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 95a normal year
- Days that stay below freezing
- 14high of 32°F or less
- Days with 0.01 inch of precipitation
- 128a normal year
- Days with 1 inch of snow or more
- 8a normal year
The highest temperature in this station's record (since 1946) is 99°F, on August 27, 1948; the lowest is −9°F, on February 3, 1961.
The wettest calendar year on that record is 1972, with 65.43 in; the snowiest season is 2004–05, with 67.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00192501; records: ACIS (NOAA Regional Climate Centers), station USC00192501. Records use complete months only; a month missing more than three days is left out.
How sunny is Edgartown?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Edgartown, 3.9 kWh per square metre a day. August is the sunniest month (80%) and December the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 67% | 1.8 |
| February | 70% | 2.7 |
| March | 70% | 3.7 |
| April | 72% | 4.9 |
| May | 72% | 5.5 |
| June | 74% | 5.9 |
| July | 80% | 6.0 |
| August | 80% | 5.4 |
| September | 79% | 4.4 |
| October | 72% | 3.0 |
| November | 70% | 2.0 |
| December | 65% | 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 Edgartown need?
A normal year in Edgartown brings 5,215 heating degree days, 3% fewer than the median U.S. place (5,373), and 626 cooling degree days, 31% fewer than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,867 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 997 | 0 |
| February | 864 | 0 |
| March | 804 | 0 |
| April | 527 | 1 |
| May | 263 | 7 |
| June | 55 | 76 |
| July | 3 | 229 |
| August | 3 | 217 |
| September | 52 | 88 |
| October | 284 | 8 |
| November | 539 | 0 |
| December | 825 | 0 |
| Year (annual) | 5,215 | 626 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00192501. 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 Edgartown been warmer than normal lately?
2025 averaged 52.0°F, 0.3°F below the 1991-2020 normal of 52.3°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 53.6°F | +1.3°F | 44.69 | 14.1 |
| 2022 | 53.7°F | +1.4°F | 41.13 | 27.6 |
| 2023 | 54.2°F | +1.9°F | 46.82 | 5.0 |
| 2024 | 53.2°F | +0.9°F | 50.81 | 10.2 |
| 2025 | 52.0°F | −0.3°F | 41.06 | 21.4 |
Over 71 complete years from 1947 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 USC00192501; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Edgartown's climate compare?
Edgartown is warmer than 34 of the other 34 places with their own NOAA record in Massachusetts, and wetter than 17. Across the 7,247 U.S. stations with normals, its annual mean of 52.3°F is warmer than 51%.
In the Köppen classification computed from these normals, Edgartown is Cfa: temperate, 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 Edgartown's climate
What is the coldest month in Edgartown?
January, with a normal high of 40°F and a normal low of 26°F. The warmest is July (80°F by day, 64°F at night).
Does it snow in Edgartown?
Yes: 25 inches in a normal year, falling on 11 days with 0.1 inch or more, the most in January (8.8 inches).
What is the rainiest month in Edgartown?
December, with 4.84 in of precipitation in a normal year; the driest is July with 2.64 in.
What plant hardiness zone is Edgartown in?
The USDA's 2023 map puts Edgartown in zone 7b in ZIP code 02539, the nearest ZIP area. By the same method at Edgartown's NOAA station, the coldest night of a typical year reaches 5°F (29 years, 1991-2020): zone 7b.
How late can frost come in Edgartown?
In half of years the last 32°F night comes after April 17; in one year in ten it comes after May 3. Waiting until May 3 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Massachusetts climateThe statewide normals and every place in the state
- Vineyard Haven, MA5 miles from this station, 50.2°F a year
- Woods Hole, MA12 miles from this station, 51.7°F a year
- Barnstable, MA22 miles from this station, 50.3°F a year
- East Sandwich, MA23 miles from this station, 49.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made