Bridgewater, MA Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Bridgewater's primary NOAA station, BRIDGEWATER.
The climate verdict for Bridgewater
Water is the standout signal in Bridgewater, Massachusetts: 51.0 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 49°F. At 52/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 24% of scores.
- 49°F
- average temperature, NOAA 1991-2020 normal
- 52/100
- comfort score, above 24% of station-mapped location scores
- 51.0"
- annual precipitation
- 161 days
- growing season, frost-free days
Bridgewater: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00190840 · Bridgewater, MA 49°F mean · 51.0" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 49°F
- RANK-COOL #2,470
- PHOTO-FINISH ≈ Norris Madison…
- PRCP-WET 51.0"
- SWING-MID 44°F
- COMF-LOW 52/100
- LOAD-HEAT 6,230 HDD
- STN-1 USC00190840
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Norris Madison Pwr House, MT (+ 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.
- Bridgewater (this station) 49°F
- Hot Orovada, NV 49°F
- Near Norris Madison…, MT 49°F
- Near Manti, UT 49°F
- Near Chaco Canyon Na…, NM 49°F
Climate Living Index · Bridgewater
Bridgewater: 42/100 · grade D
Bridgewater publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Bridgewater, not an official NOAA rating. Rankings still use Comfort Score 52/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 147 calendar days | 49/100 · D |
| Precipitation balance | 51.0 in · 16.0 from 35 in | 44/100 · D |
| Annual temperature balance | 49.2°F · 18.3° from 67.5°F | 37/100 · F |
| Frost-free season | 161 days/year | 34/100 · F |
Bridgewater · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Bridgewater is a continental Köppen climate: Dfb
Coldest-month mean 27.4°F and warmest-month mean 71.4°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
- 71.4°F
- Coldest month
- 27.4°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 Bridgewater sits across the climate record
Three NOAA fields for Bridgewater's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 36th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 17% wettest
- Bridgewater's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 54th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Bridgewater compares across U.S. station-mapped locations
Bridgewater's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
52 24th percentile score exceeds 24% 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%). This entry sits in this band.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 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) | 17°F (-8°C) | 27°F (-3°C) | 4.2" | 28.5 | 0.0 |
| February | 40°F (4°C) | 18°F (-8°C) | 29°F (-2°C) | 3.4" | 25.5 | 0.0 |
| March | 47°F (8°C) | 26°F (-3°C) | 36°F (2°C) | 5.2" | 23.3 | 0.0 |
| April | 58°F (14°C) | 35°F (2°C) | 46°F (8°C) | 4.8" | 11.5 | 0.0 |
| May | 68°F (20°C) | 45°F (7°C) | 56°F (13°C) | 3.8" | 1.2 | 0.4 |
| June | 77°F (25°C) | 54°F (12°C) | 65°F (18°C) | 4.1" | 0.0 | 1.8 |
| July | 83°F (28°C) | 60°F (16°C) | 71°F (22°C) | 4.3" | 0.0 | 5.0 |
| August | 81°F (27°C) | 58°F (14°C) | 69°F (21°C) | 2.7" | 0.0 | 2.5 |
| September | 74°F (23°C) | 50°F (10°C) | 62°F (17°C) | 4.3" | 0.5 | 0.7 |
| October | 63°F (17°C) | 40°F (4°C) | 52°F (11°C) | 5.0" | 6.4 | 0.0 |
| November | 53°F (12°C) | 31°F (0°C) | 42°F (6°C) | 4.6" | 18.8 | 0.0 |
| December | 43°F (6°C) | 24°F (-4°C) | 34°F (1°C) | 4.7" | 25.8 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 83°F around July 15, short of 90°F on every date, while 147 dates carry a normal low at or below freezing, the coldest 16°F near January 24.
The freezing stretch
The normal low stays at or below 32°F into April 6, then returns to freezing around November 12, covering 147 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.
Where the wet dates fall
The likeliest wet date is April 28, when 41% of years recorded at least a hundredth of an inch. The driest is August 31 at 25%. Summed across the calendar, that is about 126 wet dates a year.
The widest day
September 1 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Bridgewater.
Where Bridgewater Stands Nationally
The normal water year runs well above the national norm at roughly 51 inches.
Bridgewater 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
9.3 days with precipitation
10.2 days with precipitation
9.7 days with precipitation
11.9 days with precipitation
11.9 days with precipitation
11.2 days with precipitation
9.3 days with precipitation
8.2 days with precipitation
8.1 days with precipitation
12.9 days with precipitation
10.6 days with precipitation
11.8 days with precipitation
Bridgewater spreads its precipitation across the year
Neither half of the year dominates here: June through August take 22% of the annual total and December through February 24%, with neither reaching the 35% that would mark a distinct wet season. Bridgewater has no dry season to plan around, though it does carry a 44°F seasonal spread.
The gap between the wettest and driest month still matters: March averages 5.2" and August 2.7". The three wettest months together take 29% 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.
When it rains in Bridgewater, it arrives in quantity
51.0" of precipitation falls across only about 125 wet days here, averaging 0.41 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 125 a year, 34% of all days
- Average depth per wet day
- 0.41 inches
- Most wet days
- October, about 13
- Fewest wet days
- September, about 8
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Frost Dates & Growing Season
First Fall Freeze
October 9
50% probability date
Last Spring Freeze
May 1
50% probability date
Growing Season
161 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,230
Higher = more heating needed
Cooling Degree Days
522
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MA closest to Bridgewater 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 (49°F here).
- Battle Creek, MI 49°F · 0.0°F off
- Beaconsfield, IA 49°F · 0.0°F off
- Black Forest, CO 49°F · 0.0°F off
- Council, ID 49°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (51.0" here), excluding temperature-peer places.
- Beattyville, KY 51.0" · 0.0" off
- Clarksville, AR 51.0" · 0.0" off
- Gassaway, WV 51.0" · 0.0" off
- Jefferson, NC 51.0" · 0.0" off
Data-derived climate profile
How Bridgewater's climate pattern fits together
heating led · wet · mid swing
Bridgewater's energy balance leans toward cold weather: 6,230 annual heating degree days against 522 for cooling. Its 44.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Bridgewater's frost-free season lasts about 161 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Bridgewater's middle-range seasonal profile. The measured spread is 44.0°F. The annual average is 49°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, Bridgewater carries 51.0 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 Bridgewater'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 Bridgewater, not an official NOAA class or a year-ahead forecast.
Questions about Bridgewater's climate
How much rain does Bridgewater get? ▼
How cold does Bridgewater get in winter? ▼
How much energy does heating and cooling require in Bridgewater? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Bridgewater's primary station: BRIDGEWATER (USC00190840). 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 Bridgewater; 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 Bridgewater 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.