Maynard, Massachusetts climate: Normal weather by month, frost dates and records
Maynard's normal year runs from 15°F January nights to 87°F July afternoons, with 49.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.9°C, January lows of −10°C, July highs of 31°C, 1,262 mm of precipitation a year.
- NOAA stationMaynard 2
- Station IDUSC00194580
- Location42.43°N 71.44°W
- Elevation205 ft (63 m)
- From the centerunder 1 mile
- Population (town)10,820
- Census place10,663
On October 23, the normal high in Maynard is 63°F and the normal low 36°F, and the chance of measurable rain or snow is 34%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Maynard.
- Jan 37° 15°
- Feb 41° 16°
- Mar 49° 24°
- Apr 62° 34°
- May 73° 45°
- Jun 81° 55°
- Jul 87° 60°
- Aug 85° 58°
- Sep 78° 49°
- Oct 66° 38°
- Nov 54° 29°
- Dec 43° 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 Maynard each month?
July is the warmest month, with normal highs of 87°F; January the coldest, with normal lows of 15°F. The most precipitation falls in October (5.07 in), the least in February (3.30 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 37°F | 15°F | 26.0°F | 3.58 | 11 | <1 | 29 | 9 h 20 min |
| February | 41°F | 16°F | 28.2°F | 3.30 | 9 | <1 | 26 | 10 h 30 min |
| March | 49°F | 24°F | 36.2°F | 4.59 | 12 | <1 | 25 | 11 h 50 min |
| April | 62°F | 34°F | 47.7°F | 4.36 | 12 | <1 | 11 | 13 h 20 min |
| May | 73°F | 45°F | 59.2°F | 3.67 | 13 | 1 | 1 | 14 h 30 min |
| June | 81°F | 55°F | 67.9°F | 4.16 | 11 | 4 | <1 | 15 h 20 min |
| July | 87°F | 60°F | 73.5°F | 4.04 | 10 | 8 | <1 | 15 h |
| August | 85°F | 58°F | 71.5°F | 4.43 | 10 | 6 | <1 | 14 h |
| September | 78°F | 49°F | 63.5°F | 3.89 | 10 | 2 | <1 | 12 h 30 min |
| October | 66°F | 38°F | 51.7°F | 5.07 | 10 | <1 | 8 | 11 h 10 min |
| November | 54°F | 29°F | 41.2°F | 3.76 | 11 | <1 | 19 | 9 h 50 min |
| December | 43°F | 21°F | 31.7°F | 4.85 | 11 | <1 | 27 | 9 h 10 min |
| Year (annual) | 63°F | 37°F | 49.8°F | 49.70 | 129 | 22 | 147 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 3°C | −10°C | −3.3°C | 91 mm |
| February | 5°C | −9°C | −2.1°C | 84 mm |
| March | 9°C | −5°C | 2.3°C | 117 mm |
| April | 16°C | 1°C | 8.7°C | 111 mm |
| May | 23°C | 7°C | 15.1°C | 93 mm |
| June | 27°C | 13°C | 19.9°C | 106 mm |
| July | 31°C | 16°C | 23.1°C | 103 mm |
| August | 29°C | 14°C | 21.9°C | 113 mm |
| September | 25°C | 10°C | 17.5°C | 99 mm |
| October | 19°C | 3°C | 10.9°C | 129 mm |
| November | 12°C | −2°C | 5.1°C | 96 mm |
| December | 6°C | −6°C | −0.2°C | 123 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Bedford (9 miles away), gets 59 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00194580; 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 Maynard?
Normal highs sit between 65°F and 85°F in May, June, August, September and October. Of those, September has the fewest days with rain (10).
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 USC00194580.
When is the last frost in Maynard?
In Maynard, the last spring frost (32°F) comes after May 2 in half of years and after May 16 in one year in ten; the first autumn frost comes before October 6 in half of years and before September 25 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 21 year in 10 after May 16; 9 in 10 after April 22
- First autumn frost, half of years before
- October 61 year in 10 before September 25; 9 in 10 before October 22
NOAA puts the median frost-free season at 156 days, and the season without a hard freeze (28°F) at 178 days.
A hard freeze (28°F) comes after April 21 in half of springs and before October 18 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Maynard in zone 6b in ZIP code 01754. By the map's own method, the average of each year's coldest night over 1991-2020, Maynard's NOAA station is in zone 6b: the coldest night of a typical year reaches −5°F (18 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 USC00194580; 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 Maynard?
In a normal year in Maynard, 22 days a year reach 90°F (1 of them 100°F or more), 147 nights fall to 32°F or colder and 129 days bring measurable precipitation.
- Days at 90°F or more
- 22a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 147a normal year
- Days that stay below freezing
- 28high of 32°F or less
- Days with 0.01 inch of precipitation
- 129a normal year
The highest temperature in this station's record (since 1963) is 103°F, on July 7, 2010; the lowest is −22°F, on January 22, 1984.
The wettest calendar year on that record is 2008, with 72.75 in; the snowiest season is 2007–08, with 70.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00194580; records: ACIS (NOAA Regional Climate Centers), station USC00194580. Records use complete months only; a month missing more than three days is left out.
How sunny is Maynard?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Maynard, 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 much heating and cooling does Maynard need?
A normal year in Maynard brings 6,216 heating degree days, 16% more than the median U.S. place (5,373), and 729 cooling degree days, 20% 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 2,872 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,209 | 0 |
| February | 1,029 | 0 |
| March | 895 | 0 |
| April | 523 | 4 |
| May | 217 | 36 |
| June | 50 | 136 |
| July | 4 | 269 |
| August | 12 | 212 |
| September | 113 | 67 |
| October | 416 | 5 |
| November | 716 | 0 |
| December | 1,032 | 0 |
| Year (annual) | 6,216 | 729 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00194580. 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.
How does Maynard's climate compare?
Maynard is warmer than 17 of the other 34 places with their own NOAA record in Massachusetts, and wetter than 27. Across the 7,247 U.S. stations with normals, its annual mean of 49.8°F is warmer than 39%.
In the Köppen classification computed from these normals, Maynard 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.
Which places near Maynard share this climate record?
3 places have no NOAA station with 1991-2020 normals of their 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.
- Marlborough, MA42,169 people · 8 mi SW
- Hudson, MA20,364 people · 7 mi W
- West Concord, MA5,997 people · 3 mi NE
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 Maynard's climate
What is the coldest month in Maynard?
January, with a normal high of 37°F and a normal low of 15°F. The warmest is July (87°F by day, 60°F at night).
Does it snow in Maynard?
Yes. NOAA publishes no 1991-2020 snowfall normal for Maynard's NOAA station; the nearest record that keeps one, Bedford (9 miles away), records 59 inches of snow in a normal year.
What is the rainiest month in Maynard?
October, with 5.07 in of precipitation in a normal year; the driest is February with 3.30 in.
What plant hardiness zone is Maynard in?
The USDA's 2023 map puts Maynard in zone 6b in ZIP code 01754. By the same method at Maynard's NOAA station, the coldest night of a typical year reaches −5°F (18 years, 1991-2020): zone 6b.
How late can frost come in Maynard?
In half of years the last 32°F night comes after May 2; in one year in ten it comes after May 16. Waiting until May 16 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Massachusetts climateThe statewide normals and every place in the state
- Bedford Hanscom Field, MA8 miles from this station, 50.5°F a year
- Bedford, MA9 miles from this station, 49.6°F a year
- Natick, MA11 miles from this station, 48.9°F a year
- Lowell, MA15 miles from this station, 49.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made