Bridgeport weather in September: Bridgeport, Connecticut: normal highs, lows, rain and records for September
Bridgeport in September has a normal high of 75°F and a normal low of 60°F, a daily mean of 68°F, falling from 80°F on the 1st to 70°F by the 30th. Measurable precipitation falls on 8 days in a normal September, 3.96 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 15°C, 101 mm of precipitation in September.
- NOAA stationIgor I Sikorsky Memorial Airport
- Station IDUSW00094702
- Location41.16°N 73.13°W
- Elevation5 ft (2 m)
- From the center4 miles
- Population151,599
- 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.
How warm is Bridgeport in September?
The normal high is 75°F and the normal low 60°F, for a daily mean of 67.6°F. September is 6.9°F cooler than August and 11.2°F warmer than October. September is the 4th warmest month of the year in Bridgeport and the 5th wettest. Across the month the normal high falls 10°F, from 80°F on September 1 to 70°F on September 30. From one year to the next September's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 66°F and 70°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 31%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 80°F | 64°F | 27% | 18% |
| September 8 | 78°F | 63°F | 26% | 18% |
| September 15 | 76°F | 60°F | 27% | 18% |
| September 22 | 73°F | 58°F | 29% | 19% |
| September 30 | 70°F | 54°F | 31% | 19% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 80°F | 64°F | 27% | 18% | 13 h 10 min |
| September 2 | 79°F | 64°F | 27% | 18% | 13 h 10 min |
| September 3 | 79°F | 64°F | 27% | 18% | 13 h |
| September 4 | 79°F | 64°F | 27% | 18% | 13 h |
| September 5 | 79°F | 63°F | 27% | 18% | 13 h |
| September 6 | 78°F | 63°F | 27% | 18% | 13 h |
| September 7 | 78°F | 63°F | 27% | 18% | 12 h 50 min |
| September 8 | 78°F | 63°F | 26% | 18% | 12 h 50 min |
| September 9 | 78°F | 62°F | 26% | 18% | 12 h 50 min |
| September 10 | 77°F | 62°F | 26% | 18% | 12 h 50 min |
| September 11 | 77°F | 62°F | 27% | 18% | 12 h 40 min |
| September 12 | 77°F | 61°F | 27% | 18% | 12 h 40 min |
| September 13 | 76°F | 61°F | 27% | 18% | 12 h 40 min |
| September 14 | 76°F | 61°F | 27% | 18% | 12 h 30 min |
| September 15 | 76°F | 60°F | 27% | 18% | 12 h 30 min |
| September 16 | 76°F | 60°F | 27% | 18% | 12 h 30 min |
| September 17 | 75°F | 60°F | 27% | 18% | 12 h 30 min |
| September 18 | 75°F | 59°F | 28% | 18% | 12 h 20 min |
| September 19 | 74°F | 59°F | 28% | 18% | 12 h 20 min |
| September 20 | 74°F | 58°F | 28% | 18% | 12 h 20 min |
| September 21 | 74°F | 58°F | 28% | 19% | 12 h 20 min |
| September 22 | 73°F | 58°F | 29% | 19% | 12 h 10 min |
| September 23 | 73°F | 57°F | 29% | 19% | 12 h 10 min |
| September 24 | 73°F | 57°F | 29% | 19% | 12 h 10 min |
| September 25 | 72°F | 56°F | 30% | 19% | 12 h 10 min |
| September 26 | 72°F | 56°F | 30% | 19% | 12 h |
| September 27 | 72°F | 56°F | 30% | 19% | 12 h |
| September 28 | 71°F | 55°F | 30% | 19% | 12 h |
| September 29 | 71°F | 55°F | 30% | 19% | 11 h 50 min |
| September 30 | 70°F | 54°F | 31% | 19% | 11 h 50 min |
- Normal high
- 75°FSeptember average
- Normal low
- 60°FSeptember average
- Precipitation
- 3.96 inmonth total
- Days with precipitation
- 80.01 inch or more
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 24
- Days at 80°F or more
- 8
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094702; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Bridgeport in September?
On a given September day the chance of 0.01 inch or more is 28% on average, highest around September 30 (31%). In all, 3.96 in falls on 8 days of a normal September, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094702.
How humid and windy is Bridgeport in September?
At 3 p.m. the normal temperature is 68°F with 56% relative humidity and a dew point of 52°F; at 6 a.m. it is 57°F with 82% humidity. The wind averages 8.7 mph, most often from the west-southwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 57°F | 52°F | 82% | 7.5 mph | 64% |
| 9 a.m. | 63°F | 52°F | 68% | 9.8 mph | 61% |
| noon | 67°F | 52°F | 59% | 11.0 mph | 60% |
| 3 p.m. | 68°F | 52°F | 56% | 10.9 mph | 60% |
| 6 p.m. | 65°F | 53°F | 65% | 8.3 mph | 66% |
| 9 p.m. | 62°F | 53°F | 74% | 7.8 mph | 66% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094702. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Bridgeport?
The warmest September temperature on Bridgeport's official record (since 1948) is 99°F, on September 2, 1953; the coldest is 36°F, on September 21, 1956. The wettest September brought 8.59 in (2018).
The September mean against the 1991-2020 normal of 67.6°F: 2021 69.8°F (+2.2), 2022 67.5°F (−0.1), 2023 67.8°F (+0.2), 2024 66.8°F (−0.8), 2025 67.9°F (+0.3), 2026 67.0°F (−0.6). 3 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.8°F | +2.2°F | 8.38 in |
| 2022 | 67.5°F | −0.1°F | 5.07 in |
| 2023 | 67.8°F | +0.2°F | 8.28 in |
| 2024 | 66.8°F | −0.8°F | 0.68 in |
| 2025 | 67.9°F | +0.3°F | 2.89 in |
| 2026 | 67.0°F | −0.6°F | 8.22 in |
Source: records: ACIS, NWS threaded record BDRthr; recent months: ACIS, station USW00094702. Records and recent months use complete months only.
How does September in Bridgeport compare across Connecticut?
Across the 13 places PlainClimate covers in Connecticut, September normal highs run from 69°F in Norfolk to 76°F in Hartford; Bridgeport's is 75°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Bridgeport in August82°F by day, 67°F at night
- Bridgeport in October64°F by day, 48°F at night
- Bridgeport through the yearEvery month, frost dates, records and recent years
- Connecticut in SeptemberThe statewide normal and the warmest and coolest places
- Hartford: Connecticut's warmest Septembernormal high 76°F