Bridgeport, Connecticut climate: Normal weather by month, frost dates and records
Bridgeport's normal year runs from 24°F January nights to 83°F July afternoons, with 44.1 inches of precipitation and 34 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.9°C, January lows of −4°C, July highs of 29°C, 1,120 mm of precipitation a year.
- NOAA stationIgor I Sikorsky Memorial Airport
- Station IDUSW00094702
- Location41.16°N 73.13°W
- Elevation5 ft (2 m)
- From the center4 miles
- Population151,599
On October 14, the normal high in Bridgeport is 65°F and the normal low 49°F, and the chance of measurable rain or snow is 32%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Bridgeport.
- Jan 38° 24°
- Feb 41° 26°
- Mar 47° 32°
- Apr 58° 42°
- May 68° 52°
- Jun 78° 62°
- Jul 83° 68°
- Aug 82° 67°
- Sep 75° 60°
- Oct 64° 48°
- Nov 54° 38°
- Dec 44° 30°
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 Bridgeport each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 24°F. The most precipitation falls in April (4.16 in), the least in November (3.11 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 | 38°F | 24°F | 31.4°F | 3.18 | 8.5 | 11 | <1 | 25 | 9 h 30 min |
| February | 41°F | 26°F | 33.1°F | 3.12 | 10.7 | 10 | <1 | 22 | 10 h 40 min |
| March | 47°F | 32°F | 39.9°F | 4.09 | 7.0 | 11 | <1 | 16 | 11 h 50 min |
| April | 58°F | 42°F | 50.0°F | 4.16 | 0.9 | 11 | <1 | 2 | 13 h 20 min |
| May | 68°F | 52°F | 60.0°F | 3.58 | 0.0 | 12 | <1 | <1 | 14 h 30 min |
| June | 78°F | 62°F | 69.6°F | 3.77 | 0.0 | 11 | 2 | <1 | 15 h 10 min |
| July | 83°F | 68°F | 75.7°F | 3.32 | 0.0 | 9 | 5 | <1 | 14 h 50 min |
| August | 82°F | 67°F | 74.5°F | 3.98 | 0.0 | 9 | 2 | <1 | 13 h 50 min |
| September | 75°F | 60°F | 67.6°F | 3.96 | 0.0 | 8 | <1 | <1 | 12 h 30 min |
| October | 64°F | 48°F | 56.4°F | 3.84 | 0.1 | 10 | <1 | <1 | 11 h 10 min |
| November | 54°F | 38°F | 46.0°F | 3.11 | 0.9 | 9 | <1 | 7 | 10 h |
| December | 44°F | 30°F | 37.0°F | 3.98 | 5.5 | 12 | <1 | 20 | 9 h 10 min |
| Year (annual) | 61°F | 46°F | 53.4°F | 44.09 | 33.6 | 125 | 9 | 92 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | −4°C | −0.3°C | 81 mm | 22 cm |
| February | 5°C | −4°C | 0.6°C | 79 mm | 27 cm |
| March | 9°C | 0°C | 4.4°C | 104 mm | 18 cm |
| April | 15°C | 5°C | 10.0°C | 106 mm | 2 cm |
| May | 20°C | 11°C | 15.6°C | 91 mm | 0 cm |
| June | 25°C | 16°C | 20.9°C | 96 mm | 0 cm |
| July | 29°C | 20°C | 24.3°C | 84 mm | 0 cm |
| August | 28°C | 19°C | 23.6°C | 101 mm | 0 cm |
| September | 24°C | 15°C | 19.8°C | 101 mm | 0 cm |
| October | 18°C | 9°C | 13.6°C | 98 mm | 0 cm |
| November | 12°C | 4°C | 7.8°C | 79 mm | 2 cm |
| December | 7°C | −1°C | 2.8°C | 101 mm | 14 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00094702; 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 Bridgeport?
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 (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 USW00094702.
When is the last frost in Bridgeport?
In Bridgeport, the last spring frost (32°F) comes after April 5 in half of years and after April 17 in one year in ten; the first autumn frost comes before November 6 in half of years and before October 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
- April 51 year in 10 after April 17; 9 in 10 after March 25
- First autumn frost, half of years before
- November 61 year in 10 before October 25; 9 in 10 before November 20
NOAA puts the median frost-free season at 216 days, and the season without a hard freeze (28°F) at 238 days.
A hard freeze (28°F) comes after March 26 in half of springs and before November 19 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Bridgeport in zone 7a across its 6 ZIP code areas (7a in 06606, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Bridgeport's NOAA station is in zone 7a: the coldest night of a typical year reaches 5°F (30 complete years).
Frost dates for every NOAA station in Connecticut · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00094702; 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 Bridgeport ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Bridgeport's 6 ZIP code areas are all in zone 7a. 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 Bridgeport?
In a normal year in Bridgeport, 9 days a year reach 90°F, 92 nights fall to 32°F or colder and 125 days bring measurable precipitation.
- Days at 90°F or more
- 9a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 92a normal year
- Days that stay below freezing
- 18high of 32°F or less
- Days with 0.01 inch of precipitation
- 125a normal year
- Days with 1 inch of snow or more
- 9a normal year
The highest temperature in Bridgeport's official record (kept by the National Weather Service since 1948) is 103°F, on July 22, 1957; the lowest is −7°F, on January 22, 1984.
The wettest calendar year on that record is 1972, with 73.93 in; the snowiest season is 1995–96, with 75.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00094702; records: ACIS (NOAA Regional Climate Centers), NWS threaded record BDRthr. Records use complete months only; a month missing more than three days is left out.
How humid and windy is Bridgeport, and how clear are its skies?
The summer (June-August) dew point averages 63°F. The muggiest month is July, with an average dew point of 65°F; the driest air comes in January (19°F). February is the windiest month (10.0 mph on average), and August has the most clear or nearly clear hours (69%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 19°F | 61% | 52% | 9.4 mph | 58% | 29% |
| February | 23°F | 61% | 52% | 10.0 mph | 52% | 35% |
| March | 31°F | 58% | 47% | 9.8 mph | 54% | 34% |
| April | 41°F | 63% | 49% | 9.2 mph | 56% | 29% |
| May | 54°F | 69% | 55% | 8.3 mph | 59% | 25% |
| June | 62°F | 69% | 55% | 7.4 mph | 68% | 15% |
| July | 65°F | 71% | 57% | 7.4 mph | 68% | 15% |
| August | 61°F | 69% | 55% | 8.0 mph | 69% | 17% |
| September | 53°F | 70% | 56% | 8.7 mph | 61% | 24% |
| October | 40°F | 66% | 54% | 9.1 mph | 60% | 27% |
| November | 31°F | 66% | 56% | 9.2 mph | 56% | 31% |
| December | 23°F | 64% | 55% | 9.4 mph | 57% | 31% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094702. Monthly averages of all hours; afternoon humidity at 3 p.m. local standard time; sky as the share of hours NOAA's observations rate clear or few clouds (a dash where NOAA publishes no sky value).
How sunny is Bridgeport?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Bridgeport, 3.9 kWh per square metre a day. July is the sunniest month (79%) and December the cloudiest (65%). 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 | 68% | 1.8 |
| February | 70% | 2.7 |
| March | 68% | 3.7 |
| April | 69% | 4.8 |
| May | 69% | 5.4 |
| June | 74% | 5.9 |
| July | 79% | 6.0 |
| August | 78% | 5.3 |
| September | 77% | 4.3 |
| October | 70% | 2.9 |
| 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 Bridgeport need?
A normal year in Bridgeport brings 5,140 heating degree days, 4% fewer than the median U.S. place (5,373), and 955 cooling degree days, 5% more 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 3,347 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,042 | 0 |
| February | 893 | 0 |
| March | 780 | 0 |
| April | 452 | 2 |
| May | 182 | 29 |
| June | 25 | 163 |
| July | 0 | 330 |
| August | 1 | 294 |
| September | 45 | 123 |
| October | 282 | 14 |
| November | 570 | 0 |
| December | 868 | 0 |
| Year (annual) | 5,140 | 955 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00094702. 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 Bridgeport been warmer than normal lately?
2025 averaged 53.5°F, 0.1°F above the 1991-2020 normal of 53.4°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 54.8°F | +1.4°F | 45.19 | 34.0 |
| 2022 | 53.7°F | +0.3°F | 36.89 | 28.3 |
| 2023 | 54.7°F | +1.3°F | 52.74 | 4.1 |
| 2024 | 55.2°F | +1.8°F | 48.01 | 16.9 |
| 2025 | 53.5°F | +0.1°F | 30.16 | 28.5 |
Over 74 complete years from 1949 to 2025, the station's annual mean temperature rose at a fitted 5.0°F per century (+0.28°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00094702; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Bridgeport's climate compare?
Bridgeport is warmer than 12 of the other 12 places with their own NOAA record in Connecticut, and wetter than 3. Across the 7,247 U.S. stations with normals, its annual mean of 53.4°F is warmer than 55%.
In the Köppen classification computed from these normals, Bridgeport 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 Bridgeport share this climate record?
8 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.
- Milford, CTalso near: Ansonia (9 mi, 50.1°F a year); New Haven (10 mi, 52.0°F a year)51,004 people · 6 mi NE
- Trumbull Center, CT10,137 people · 6 mi NW
- Long Hill, CT8,597 people · 9 mi NW
- Lordship, CT3,613 people · 1 mi SE
- Stratford Downtown, CT1,758 people · 3 mi N
- Sacred Heart University, CT1,085 people · 7 mi NW
- Plattsville, CT742 people · 8 mi NW
- Murray, CT688 people · 9 mi W
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 Bridgeport's climate
What is the coldest month in Bridgeport?
January, with a normal high of 38°F and a normal low of 24°F. The warmest is July (83°F by day, 68°F at night).
Does it snow in Bridgeport?
Yes: 34 inches in a normal year, falling on 15 days with 0.1 inch or more, the most in February (10.7 inches).
What is the rainiest month in Bridgeport?
April, with 4.16 in of precipitation in a normal year; the driest is November with 3.11 in.
What plant hardiness zone is Bridgeport in?
The USDA's 2023 map puts Bridgeport in zone 7a across its 6 ZIP code areas (7a in 06606, the largest). By the same method at Bridgeport's NOAA station, the coldest night of a typical year reaches 5°F (30 years, 1991-2020): zone 7a.
How late can frost come in Bridgeport?
In half of years the last 32°F night comes after April 5; in one year in ten it comes after April 17. Waiting until April 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Bridgeport in OctoberThis month day by day, its records and recent years
- Connecticut climateThe statewide normals and every place in the state
- Ansonia, CT13 miles from this station, 50.1°F a year
- Setauket, NY14 miles from this station, 53.4°F a year
- New Haven, CT14 miles from this station, 52.0°F a year
- Mount Sinai, NY17 miles from this station, 54.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made