W Harwich, MA Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from W Harwich's primary NOAA station, W HARWICH.
The climate verdict for W Harwich
Water is the standout signal in W Harwich, Massachusetts: 46.3 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 50°F. Its climate comfort score of 68/100 (good) lands mid-pack nationally, exceeding 56% of station-mapped location scores.
- 50°F
- average temperature, NOAA 1991-2020 normal
- 68/100
- comfort score, above 56% of station-mapped location scores
- 46.3"
- annual precipitation
- 204 days
- frost-free days per growing season
W Harwich: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00199227 · W Harwich, MA 50°F mean · 46.3" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 50°F
- RANK-MID #2,882
- PHOTO-FINISH ≈ Clines Corners
- PRCP-MID 46.3"
- SWING-MID 40°F
- COMF-MID 68/100
- LOAD-HEAT 5,761 HDD
- STN-1 USC00199227
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Clines Corners, NM (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every MA station list.
- Hot Walnut Canyon N…, AZ 51°F
- Near Stanley, NM 51°F
- W Harwich (this station) 50°F
- Cold Vineyard Haven, MA 50°F
- Near Clines Corners, NM 50°F
Climate Living Index · W Harwich
W Harwich: 59/100 · grade C
W Harwich publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for W Harwich, not an official NOAA rating. Rankings still use Comfort Score 68/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 107 calendar days | 72/100 · B |
| Frost-free season | 204 days/year | 67/100 · C |
| Precipitation balance | 46.3 in · 11.3 from 35 in | 60/100 · C |
| Annual temperature balance | 50.4°F · 17.1° from 67.5°F | 42/100 · D |
W Harwich · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
W Harwich is a continental Köppen climate: Dfb
Coldest-month mean 31.0°F and warmest-month mean 71.1°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 71.1°F
- Coldest month
- 31.0°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where W Harwich sits across the climate record
Three NOAA fields for W Harwich's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 42nd percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 29% wettest
- W Harwich's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 36th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How W Harwich compares across U.S. station-mapped locations
W Harwich's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 44% score exceeds 56% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). This entry sits in this band.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 38°F (3°C) | 25°F (-4°C) | 31°F (0°C) | 3.8" | 22.8 | 0.0 |
| February | 38°F (3°C) | 24°F (-4°C) | 31°F (-1°C) | 3.7" | 18.8 | 0.0 |
| March | 44°F (7°C) | 30°F (-1°C) | 37°F (3°C) | 4.3" | 17.8 | 0.0 |
| April | 52°F (11°C) | 39°F (4°C) | 45°F (7°C) | 4.1" | 3.8 | 0.0 |
| May | 62°F (16°C) | 48°F (9°C) | 55°F (13°C) | 3.5" | 0.0 | 0.0 |
| June | 71°F (21°C) | 58°F (14°C) | 64°F (18°C) | 3.3" | 0.0 | 0.0 |
| July | 78°F (25°C) | 65°F (18°C) | 71°F (22°C) | 2.8" | 0.0 | 0.5 |
| August | 78°F (25°C) | 64°F (18°C) | 71°F (21°C) | 3.4" | 0.0 | 0.0 |
| September | 71°F (22°C) | 57°F (14°C) | 64°F (18°C) | 3.9" | 0.0 | 0.0 |
| October | 62°F (16°C) | 47°F (8°C) | 54°F (12°C) | 4.7" | 1.0 | 0.0 |
| November | 52°F (11°C) | 37°F (3°C) | 45°F (7°C) | 4.0" | 9.0 | 0.0 |
| December | 43°F (6°C) | 30°F (-1°C) | 37°F (3°C) | 4.8" | 21.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 79°F around July 28, short of 90°F on every date, while 107 dates carry a normal low at or below freezing, the coldest 23°F near February 1.
The freezing stretch
The normal low stays at or below 32°F into March 21, then returns to freezing around December 6, covering 107 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
The widest day
November 1 carries the biggest normal gap between afternoon and dawn, 15°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for W Harwich.
Where W Harwich Stands Nationally
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 15°F.
W Harwich earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
W Harwich spreads its precipitation across the year
Neither half of the year dominates here: June through August take 20% of the annual total and December through February 27%, with neither reaching the 35% that would mark a distinct wet season. W Harwich has no dry season to plan around, though it does carry a 40.1°F seasonal spread.
The gap between the wettest and driest month still matters: December averages 4.8" and July 2.8". The three wettest months together take 30% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
Frost Dates & Growing Season
First Fall Freeze
November 3
50% probability date
Last Spring Freeze
April 13
50% probability date
Growing Season
204 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,761
Higher = more heating needed
Cooling Degree Days
466
Higher = more cooling needed
Warmest Month
July
Coldest Month
February
Nationwide similar cities
Other rankable U.S. places outside MA closest to W Harwich on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (50°F here).
- Alcalde, NM 50°F · 0.0°F off
- Beaver Falls, PA 50°F · 0.0°F off
- Brewster, KS 50°F · 0.0°F off
- Colorado Springs, CO 50°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (46.3" here), excluding temperature-peer places.
- Dobbins, CA 46.3" · 0.0" off
- Bedford, VA 46.3" · 0.0" off
- Greenwood, DE 46.3" · 0.0" off
- Bolivar, MO 46.4" · 0.0" off
Data-derived climate profile
How W Harwich's climate pattern fits together
heating led · wet · mid swing
W Harwich's energy balance leans toward cold weather: 5,761 annual heating degree days against 466 for cooling. Its 40.1°F seasonal range still makes the monthly rows more useful than the annual average alone.
W Harwich's frost-free season lasts about 204 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and February mark the typical warm and cold ends of the calendar in W Harwich's middle-range seasonal profile. The measured spread is 40.1°F. The annual average is 50°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, W Harwich carries 46.3 inches of precipitation in a normal year, inside PlainClimate's wet range. Snowfall is not added to the interpretation because its annual value is missing. That distinction matters because a wet annual total can arrive as rain, snow, or a mixture at different times.
These labels group NOAA 1991-2020 normals from W Harwich's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for W Harwich, not an official NOAA class or a year-ahead forecast.
Questions about W Harwich's climate
How much rain does W Harwich get? ▼
How cold does W Harwich get in winter? ▼
How much energy does heating and cooling require in W Harwich? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from W Harwich's primary station: W HARWICH (USC00199227). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for W Harwich; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for W Harwich comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.