The state of Washington is located in the northwestern United States and has the largest city of Seattle. Climate of the state varies greatly from pacific coasts on west to Cascade Mountains on east. Coastal regions are having oceanic weather conditions with average annual temperature of 52 °F (+11 °C) and greater amount of precipitation. Regions on east side of the mountains are much drier and colder with average annual temperature of 39 °F (+4 °C).

Such differences of weather within one state are explained by rain shadow effects. The Cascade Mountains are interfering movement of oceanic air masses, making east slopes and further inland territories drier. In the western regions, there are contrasting weather conditions, a cooling below 32 °F (0 °C) in winter and heat above 86 °F (+30 °C) in summer.

 

Seasons

 

Contents:

• Spring
• Summer
• Autumn
• Winter

Spring in Washington

In western portion of the state spring means decreasing of rains and growing temperatures. At March there is probability of some insignificant bits of snow. Difference between eastern and western portions of the state at spring isn’t great unless first is warmer by couple of degrees. At March stars season of whale watching.

One might thought that spring in the state isn’t so rainy. Yet actual rainy season remains until middle of June. Thus travelers should pack some respective clothes. In addition oceanic breezes are making air colder than it may seem according to thermometer. In general coastal areas are rather cool and inland territories are cloudy.

Climate of the Spring Months

March Max average t°: 53 °F (+11.5 °C) Min average t°: 38 °F (+3.5 °C) Sundial in the day: 7 hours Rainy days: 13 days Precipitation: 5.7" (145 mm)

April Max average t°: 58 °F (+14.5 °C) Min average t°: 41 °F (+5 °C) Sundial in the day: 8 hours Rainy days: 12 days Precipitation: 4.8" (122 mm)

May Max average t°: 65 °F (+18 °C) Min average t°: 47 °F (+8 °C) Sundial in the day: 9 hours Rainy days: 9 days Precipitation: 3.2" (81 mm)

(Seattle)

Spring Holidays

March 1st: National Women of Color Day.
March 17: St.Patrick 's Day.

April 1: April Fools' Day.
April 22: International Earth Day.

2nd Sunday of May: Mother’s Day.
last Monday in May: Memorial Day.

Summer in Washington

At June weather of the state gradually improves. In this way by coming of July it gains perfect state for different types of outdoor activities. Average daytime temperature reaches marks of 62 to 68 °F (+17..+20 °C). Most of days of July and August are warm and sunny. Precipitation lowers to about 1.2” (33 mm) per month thus rains are out of concern.

Hiking, fishing and other kinds of entertainment in the bosom of nature are available on western side from Cascades for there is lush greenery and numerous natural sights. While dry eastern part of the state offers some extreme recreation.

 

Climate of the Summer Months

 

June Max average t°: 70 °F (+21 °C) Min average t°: 53 °F (+11.5 °C) Sundial in the day: 9 hours Rainy days: 8 days Precipitation: 2.6" (66 mm)

July Max average t°: 77 °F (+25 °C) Min average t°: 57 °F (+14 °C) Sundial in the day: 9.5 hours Rainy days: 5 days Precipitation: 1.1" (29 mm)

August Max average t°: 78 °F (+25.5 °C) Min average t°: 58 °F (+14.5 °C) Sundial in the day: 9 hours Rainy days: 4 days Precipitation: 1.5" (37 mm)

(Seattle)

Summer Holidays

June 14: Day of the American flag.
June 19: Juneteenth.
Third Sunday of June: Father’s Day.

July 4: Independence Day.
August 26: Women's Equality Day.

Autumn in Washington

Weather of September is perfect for hiking, biking and boating. This month has temperature range of summer and brings exceptional beauty to local landscapes. Skies are mostly sunny. Oddly enough at best time to visit the state there is outflow of tourists due to concerns about rain. However average level of precipitation at September is only 1.9” (49 mm).

At October temperature drops to about 50 °F (+10 °C) and amount of precipitation grows reaching 6.2” (158 mm) at November. At last month of autumn low season starts thus this is suitable time for sightseeing.

 

Climate of the Autumn Months

 

September Max average t°: 70 °F (+21 °C) Min average t°: 53 °F (+12 °C) Sundial in the day: 8 hours Rainy days: 6 days Precipitation: 2.6" (67 mm)

October Max average t°: 60 °F (+15 °C) Min average t°: 47 °F (+8 °C) Sundial in the day: 6 hours Rainy days: 12 days Precipitation: 5.6" (143 mm)

November Max average t°: 50 °F (+10 °C) Min average t°: 40 °F (+5 °C) Sundial in the day: 5 hours Rainy days: 13 days Precipitation: 8.1" (206 mm)

(Seattle)

Autumn Holidays

1st Monday in September: Labor Day.

2nd Monday in October: Columbus Day.
October 31: Halloween (All Hallows' Eve).

November 11: Veterans Day / Armistice Day.
4th Thursday in November: Thanksgiving Day.
Day after Thanksgiving Day: Native American Heritage Day

Winter in Washington

Started at October rainy season reigns in the state through whole winter. Range of average temperatures is between 41-23 °F  (+5..-5 °C). Frequent precipitation takes form of light showers or drizzle. In case of negative temperatures it snows. In general precipitation is stretched though whole season.

At late November starts skiing season. Other types of winter recreation in mountains are available too. And suitable weather conditions will last April or even late May. In this way the best time to visit the state is completely depends on planned activities for each season offers legitimately good entertainment.

Climate of the Winter Months

December Max average t°: 45 °F (+7 °C) Min average t°: 36 °F (+2 °C) Sundial in the day: 4 hours Rainy days: 13 days Precipitation: 7.2" (182 mm)

January Max average t°: 46 °F (+8 °C) Min average t°: 36 °F (+2 °C) Sundial in the day: 4.5 hours Rainy days: 13 days Precipitation: 7.1" (181 mm)

February Max average t°: 48 °F (+9 °C) Min average t°: 36 °F (+2 °C) Sundial in the day: 5.5 hours Rainy days: 11 days Precipitation: 5.0" (127 mm)

(Seattle)

Winter Holidays

December 25: Christmas Day.

January 1: New Year’s Day.
January 20 every fourth year: Inauguration Day.
3rd Monday in January: Martin Luther King Jr. Birthday.

February 14: St. Valentine's Day.
3rd Monday in February: President’s Day.