Photo: Carol M. Highsmith · Public domainHardly any U.S. towns collect less precipitation than Bridgeport: 11 inches a year
Deep winter brings January lows near 14°. In January, nights here are colder than in 87% of U.S. towns. Since 1901–2000, the year has warmed by 1.2°, most of all in January. Keep the boiler serviced for the months from October to April, which average under 50°.
A year in Bridgeport at a glance
Each month’s typical high and low, and what it brings.
What stands out about Bridgeport’s climate
Compared with towns across the U.S., with Bridgeport’s place in California beside it.
What a year in Bridgeport feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
A freeze is possible in every month
About 243 nights a year fall to 32° or below, and 18 to 0° or below. Frost and day counts come from NOAA’s station at Bridgeport, CA, 1.0 miles from the town’s center, 220 ft lower.
The 2023 USDA map puts Bridgeport’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −9°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 32 inches of snow a winter
Snow, measured at Bridgeport, CA, is heaviest from January through February, about 8 inches a month. Precipitation (rain plus melted snow) adds up to 11 inches a year; January is the wettest month and September the driest. Rain or snow falls on about 40 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Bridgeport
99% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Bridgeport, CA.
Living with Bridgeport’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 6a, and frost can come in any month. The longest frost-free stretch in half of years is about 69 days.
Months with highs of 62–84° and lows of 40° or more: June. 39 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Bridgeport from natural hazards, river flooding is the largest share (38%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Bridgeport and similar climates
TownRatings has no climate map of the towns around Bridgeport yet.
Climates most like Bridgeport’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Bridgeport, CA | 14° | 86° | 11" | 32" |
| Helena Valley West Central, MT | 15° | 85° | 11" | 37" |
| Cody, WY | 14° | 85° | 11" | 45" |
| Taos, NM | 11° | 84° | 13" | 28" |
| Salida, CO | 10° | 85° | 8" | 37" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Bridgeport averaged 1.2° warmer than the 1900s. The biggest change is in January (+2.3°).
A smaller shift than in 64% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Bridgeport compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Bridgeport’s place among California’s.
Bridgeport weather by month
Highs, lows and precipitation from NOAA’s grid at Bridgeport’s center; snow, wet days and snow on the ground from Bridgeport, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 43° | 14° | 1.8" | 7.4" | 5 | 23° – 35° |
| February | 47° | 17° | 1.7" | 8.2" | 5 | 23° – 40° |
| March | 53° | 23° | 1.2" | 3.9" | 5 | 32° – 45° |
| April | 59° | 28° | 0.6" | 2.4" | 3 | 38° – 50° |
| May | 68° | 34° | 0.6" | 0.8" | 4 | 44° – 57° |
| June | 77° | 41° | 0.4" | 0.1" | 2 | 53° – 63° |
| July | 86° | 46° | 0.5" | 0.0" | 3 | 61° – 70° |
| August | 85° | 45° | 0.4" | 0.0" | 3 | 61° – 68° |
| September | 77° | 37° | 0.3" | 0.0" | 2 | 53° – 61° |
| October | 66° | 29° | 0.6" | 0.3" | 2 | 43° – 54° |
| November | 54° | 21° | 0.9" | 1.5" | 3 | 28° – 43° |
| December | 44° | 15° | 1.7" | 7.3" | 5 | 23° – 36° |
| Year | 63° | 29° | 10.6" | 31.9" | 40 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 23° to 40°. August is the most reliable, staying within 7°.
Where Bridgeport’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Bridgeport’s center.
- Snow: Bridgeport, CA (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Bridgeport, CA, 1.0 miles from the town’s center, 220 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Bridgeport’s climate
What is the weather like in Bridgeport?
A typical July afternoon reaches 86°, a January night drops to 14°, and about 32 inches of snow falls in a normal winter. Colder January nights than 87% of U.S. towns; hotter July afternoons than 53% of U.S. towns.
How cold does it get in Bridgeport in winter?
January nights average 14°. About 243 nights a year reach 32° or below and 18 reach 0° or below. In the coldest January of the last 30 years the month averaged 23°.
How much snow does Bridgeport get?
About 32 inches in a normal winter at Bridgeport, CA, heaviest from January through February, about 8 inches a month.
How hot does it get in Bridgeport?
July, with a typical high of 86° and a low of 46°. About 8 days a year reach 90° (Bridgeport, CA).
When is the first and last frost in Bridgeport?
There is no reliable frost-free season: at Bridgeport, CA, every month has nights at 32° or below, about 243 a year. In half of years the longest stretch without a freeze is about 69 days.
What growing zone is Bridgeport in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −9°.
What is the best time of year to visit Bridgeport?
By one simple rule (highs of 62–84° and lows of 40° or more), June. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Bridgeport getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 64% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Bridgeport.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.