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Bellevue, WA Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Bellevue, WA?
Bellevue, WA gets 37.8 in of precipitation a year over about 163 rainy days, and about 3.8 in of snow a season. August is the warmest month (average high 77°F) and January the coldest (average low 37°F).
Mediterranean climate
Bellevue, WA has warm summers and chilly winters. Daytime highs range from about 47°F in December to 77°F in August. November is usually the wettest month, and snow falls in winter. The most comfortable time to visit is typically May to September, when daytime highs sit near 72°F.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 37° | 48° |
| Spring | Mar–May | 44° | 59° |
| Summer | Jun–Aug | 55° | 75° |
| Autumn | Sep–Nov | 47° | 61° |
How much rain does Bellevue get?
Bellevue gets 37.8 in of precipitation in an average year, spread over about 163 days with measurable rain. That is more rainy days than 97% of the US.
November is the wettest month, with 5.8 in. July is the driest, with 0.8 in. December has the most rainy days, about 19.
The longest dry spell in the last five years lasted 40 days, to August 5, 2025.
From September 2025 to August 2026 Bellevue got 34.8 in of rain, against a normal of 37.8 in for those months. December 2025 had the most, with 6.6 in.
See where Bellevue ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in Washington.
Does it snow in Bellevue?
Yes. Bellevue gets about 3.8 in of snow in an average season, measured at the reporting station.
The snowiest winter on record is 1996–97, with 17.9 in.
The most recent measurable snow at the station fell on March 13, 2026.
From September 2025 to August 2026 the station measured 0.2 in of snow, against a normal of 3.8 in for those months. March 2026 had the most, with 0.2 in.
See where Bellevue ranks: snowiest cities in the US.
Bellevue weather by month
Bellevue weather in January
In January, Bellevue averages a high of 47°F and a low of 37°F. It gets 5.1 in of precipitation over about 19 rainy days. Estimated sunshine is 15% of daylight hours, derived from ERA5 cloud cover. The January record high is 64°F (2018) and the record low is 16°F (2024).
Bellevue weather in February
In February, Bellevue averages a high of 50°F and a low of 37°F. It gets 3.5 in of precipitation over about 16 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The February record high is 67°F (2025) and the record low is 18°F (2019).
Bellevue weather in March
In March, Bellevue averages a high of 54°F and a low of 39°F. It gets 3.9 in of precipitation over about 18 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The March record high is 78°F (2019) and the record low is 27°F (2009).
Bellevue weather in April
In April, Bellevue averages a high of 59°F and a low of 43°F. It gets 3.0 in of precipitation over about 16 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The April record high is 89°F (2016) and the record low is 31°F (2008).
Bellevue weather in May
In May, Bellevue averages a high of 65°F and a low of 48°F. It gets 2.2 in of precipitation over about 12 rainy days. Estimated sunshine is 34% of daylight hours, derived from ERA5 cloud cover. The May record high is 90°F (2008) and the record low is 35°F (2002). May is one of the most comfortable months to visit.
Bellevue weather in June
In June, Bellevue averages a high of 70°F and a low of 53°F. It gets 1.6 in of precipitation over about 11 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The June record high is 107°F (2021) and the record low is 42°F (1991). June is one of the most comfortable months to visit.
Bellevue weather in July
In July, Bellevue averages a high of 76°F and a low of 57°F. It gets 0.8 in of precipitation over about 5 rainy days. Estimated sunshine is 64% of daylight hours, derived from ERA5 cloud cover. The July record high is 105°F (2009) and the record low is 47°F (2008). July is one of the most comfortable months to visit.
Bellevue weather in August
In August, Bellevue averages a high of 77°F and a low of 57°F. It gets 1.0 in of precipitation over about 6 rainy days. Estimated sunshine is 56% of daylight hours, derived from ERA5 cloud cover. The August record high is 97°F (2020) and the record low is 47°F (2000). August is one of the most comfortable months to visit.
Bellevue weather in September
In September, Bellevue averages a high of 71°F and a low of 53°F. It gets 1.7 in of precipitation over about 9 rainy days. Estimated sunshine is 47% of daylight hours, derived from ERA5 cloud cover. The September record high is 93°F (1988) and the record low is 40°F (2019). September is one of the most comfortable months to visit.
Bellevue weather in October
In October, Bellevue averages a high of 61°F and a low of 47°F. It gets 3.6 in of precipitation over about 15 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The October record high is 88°F (2022) and the record low is 29°F (1991).
Bellevue weather in November
In November, Bellevue averages a high of 52°F and a low of 41°F. It gets 5.8 in of precipitation over about 19 rainy days. Estimated sunshine is 25% of daylight hours, derived from ERA5 cloud cover. The November record high is 76°F (2010) and the record low is 18°F (2010).
Bellevue weather in December
In December, Bellevue averages a high of 47°F and a low of 37°F. It gets 5.5 in of precipitation over about 19 rainy days. Estimated sunshine is 18% of daylight hours, derived from ERA5 cloud cover. The December record high is 65°F (2014) and the record low is 10°F (1990).
Sunshine, humidity and wind in Bellevue
July is the sunniest month in Bellevue, with estimated sunshine of 64% of daylight hours from ERA5 cloud cover. January is the cloudiest, at 15%. The annual cloud-cover estimate is 35% of daylight hours; it is not a measurement of sunshine duration. Bellevue is cloudier than 96% of the US.
Humidity peaks in December at 85% and is lowest in July at 67%.
Bellevue has about 3 days a year above 90°F. Bellevue is cooler than 96% of the US.
Thunderstorms occur on about 4 days a year.
See where Bellevue ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.
First and last freeze in Bellevue
The first fall freeze in Bellevue typically comes around November 27, and the last spring freeze around March 8. That leaves a frost-free growing season of about 264 days.
Bellevue weather records
These records cover SEATTLE SAND PT WFO during 1986–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Bellevue station is 107°F, on June 28, 2021. The coldest is 10°F, on December 21, 1990.
The wettest day in the available station history brought 4.2 in of precipitation, on December 3, 2007.
33 all-time records have been set at the station since 1986.
The annual mean temperature has changed by +0.2°F per decade since 1987.
The best time to visit Bellevue
The most comfortable time to visit is typically May to September, when daytime highs sit near 72°F.
Winter (December–February) is chilly, with average highs around 48°F and lows near 37°F. Snow is possible.
Spring (March–May) is mild, with average highs around 59°F and lows near 44°F.
Summer (June–August) is warm, with average highs around 75°F and lows near 55°F. It can feel humid.
Autumn (September–November) is mild, with average highs around 61°F and lows near 47°F.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 37° | 47° | 5.1 in | 19 | 83% | 15% | 64° | 16° |
| February | 37° | 50° | 3.5 in | 16 | 80% | 24% | 67° | 18° |
| March | 39° | 54° | 3.9 in | 18 | 76% | 28% | 78° | 27° |
| April | 43° | 59° | 3.0 in | 16 | 70% | 35% | 89° | 31° |
| May | 48° | 65° | 2.2 in | 12 | 72% | 34% | 90° | 35° |
| June | 53° | 70° | 1.6 in | 11 | 71% | 41% | 107° | 42° |
| July | 57° | 76° | 0.78 in | 5 | 67% | 64% | 105° | 47° |
| August | 57° | 77° | 1.0 in | 6 | 70% | 56% | 97° | 47° |
| September | 53° | 71° | 1.7 in | 9 | 75% | 47% | 93° | 40° |
| October | 47° | 61° | 3.6 in | 15 | 82% | 36% | 88° | 29° |
| November | 41° | 52° | 5.8 in | 19 | 83% | 25% | 76° | 18° |
| December | 37° | 47° | 5.5 in | 19 | 85% | 18% | 65° | 10° |
Station: SEATTLE SAND PT WFO, 10 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1986–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Bellevue climate questions
How much rain does Bellevue get?
Bellevue gets 37.8 in of precipitation in an average year, over about 163 rainy days.
What is the wettest month in Bellevue?
November is the wettest month in Bellevue, with 5.8 in. July is the driest, with 0.8 in.
How many rainy days does Bellevue have a year?
Bellevue has about 163 days with measurable rain in an average year. December has the most, about 19.
Does it snow in Bellevue?
Yes. Bellevue gets about 3.8 in of snow in an average season. The snowiest winter on record is 1996–97, with 17.9 in.
What is the hottest month in Bellevue?
August is the warmest month in Bellevue, with an average high of 77°F.
What is the coldest month in Bellevue?
January is the coldest month in Bellevue, with an average low of 37°F.
What is the record high temperature in Bellevue?
Within the available 1986–2026 station history, the record high at the Bellevue station is 107°F, set on June 28, 2021. The record low is 10°F, on December 21, 1990.
What is the sunniest month in Bellevue?
July is the sunniest month in Bellevue, with estimated sunshine of 64% of daylight hours from ERA5 cloud cover. January is the cloudiest.
When is the first frost in Bellevue?
The first fall freeze in Bellevue typically comes around November 27. The last spring freeze is around March 8.
What is the best time to visit Bellevue?
The most comfortable time to visit is typically May to September, when daytime highs sit near 72°F.