Bremerton, Washington climate: Normal weather by month, frost dates and records

What is the weather like in Bremerton each month?

August is the warmest month, with normal highs of 77°F; December the coldest, with normal lows of 35°F. The most precipitation falls in December (9.92 in), the least in July (0.83 in).

Each month has its own page with the day-by-day normals, the month's records and its recent years:

• Jan
• Feb
• Mar
• Apr
• May
• Jun
• Jul
• Aug
• Sep
• Oct
• Nov
• Dec

When is the best weather to visit Bremerton?

Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, August has the fewest days with rain (6).

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.

When is the last frost in Bremerton?

In Bremerton, the last spring frost (32°F) comes after March 29 in half of years and after April 24 in one year in ten; the first autumn frost comes before November 14 in half of years and before October 26 in one year in ten.

Last spring frost, half of years after

March 291 year in 10 after April 24; 9 in 10 after March 5

First autumn frost, half of years before

November 141 year in 10 before October 26; 9 in 10 before December 1

NOAA puts the median frost-free season at 227 days, and the season without a hard freeze (28°F) at 273 days.

A hard freeze (28°F) comes after February 27 in half of springs and before November 30 in half of autumns.

The USDA's 2023 Plant Hardiness Zone Map puts Bremerton in zones 8b to 9a across its 3 ZIP code areas (8b in 98312, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Bremerton's NOAA station is in zone 8b: the coldest night of a typical year reaches 20°F (22 complete years).

Frost dates for every NOAA station in Washington · Frost dates by ZIP code

What hardiness zone is each Bremerton ZIP code in?

The USDA's 2023 map gives each ZIP code area one zone. Bremerton's 3 ZIP code areas run from zone 8b to 9a: 2 in 8b and 1 in 9a. Each ZIP's frost dates are in the frost tool.

How hot and how cold does it get in Bremerton?

In a normal year in Bremerton, 4 days a year reach 90°F, 42 nights fall to 32°F or colder and 167 days bring measurable precipitation.

Days at 90°F or more

4a normal year

Days at 100°F or more

fewer than 1a normal year

Nights at 32°F or colder

42a normal year

Days that stay below freezing

1high of 32°F or less

Days with 0.01 inch of precipitation

167a normal year

Days with 1 inch of snow or more

1a normal year

The highest temperature in this station's record (since 1899) is 101°F, on August 10, 1981; the lowest is 7°F, on December 21, 1990.

The wettest calendar year on that record is 1999, with 75.81 in; the snowiest season is 1949–50, with 38.5 inches.

How sunny is Bremerton?

Over a year 67% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Bremerton, 3.4 kWh per square metre a day. August is the sunniest month (78%) and December the cloudiest (51%).

How much heating and cooling does Bremerton need?

A normal year in Bremerton brings 4,825 heating degree days, 10% fewer than the median U.S. place (5,373), and 193 cooling degree days, 79% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,058 growing degree days a year above 50°F.

Has Bremerton been warmer than normal lately?

Over 47 complete years from 1953 to 2020, the station's annual mean temperature rose at a fitted 2.9°F per century (+0.16°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.

Which places near Bremerton share this climate record?

24 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.

• Bainbridge Island, WA24,618 people · 10 mi NE
• Silverdale, WA21,046 people · 7 mi N
• Port Orchard, WA19,122 people · 3 mi SE
• Poulsbo, WA12,562 people · 12 mi N
• Parkwood, WA6,976 people · 5 mi SE
• Manchester, WA6,018 people · 7 mi E
• Bangor Base, WA5,931 people · 11 mi N
• Tracyton, WA5,658 people · 3 mi NE
• East Port Orchard, WA5,581 people · 5 mi SE
• Belfair, WA4,601 people · 12 mi SW
• Suquamish, WA4,515 people · 12 mi N
• Bethel, WA4,276 people · 6 mi SE
• Chico, WA3,016 people · 4 mi NW
• Allyn, WA2,656 people · 15 mi SW
• Navy Yard City, WA2,542 people · 1 mi SE
• Burley, WA2,516 people · 11 mi S
• Enetai, WA2,135 people · 4 mi E
• Southworth, WA2,109 people · 8 mi SE
• Kitsap Lake, WA1,879 people · 2 mi NW
• Rocky Point, WA1,648 people · 2 mi NE
• Erlands Point, WA874 people · 2 mi N
• Seabeck, WA773 people · 8 mi NW
• Gorst, WA405 people · 3 mi S
• Keyport, WA272 people · 9 mi N

Nearby and next

• Bremerton in OctoberThis month day by day, its records and recent years
• Washington climateThe statewide normals and every place in the state
• Seattle Boeing Field, WA18 miles from this station, 53.8°F a year
• Seattle, WA19 miles from this station, 53.7°F a year
• Quilcene, WA20 miles from this station, 50.5°F a year
• Tacoma, WA21 miles from this station, 51.9°F a year
• Compare two placesMonth by month, side by side

Download these normals (CSV) · JSON · How these figures are made