Climate and monthly weather forecast
Spokane, WA

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Rocks and cliffs around the scenic Spokane Falls in Washington, leading to the vast Spokane River and a view of the high bridge out front
Rocks and cliffs around the scenic Spokane Falls in Washington, leading to the vast Spokane River and a view of the high bridge out front

The climate of Spokane

Spokane, Washington, USA, thanks to its geolocation, experiences a Mediterranean climate with warm summers, according to the Köppen climate classification. This pattern, recognized as Csb, sees an overall mild and relatively stable environment.

Along the year, Spokane's temperature swings from seasonal lows near 22.1°F (-5.5°C) in December to summer highs around 83.7°F (28.7°C) in July and August. Variations are equally worth noting in relative humidity and rain patterns. From June to August, Spokane revels in the driest part of the year with relative humidity dropping to an annual low of 38 to 42%. Rainfall minimizes to a mere 0.35" (9mm) to 0.39" (10mm) during these months too. Other parameters, such as the wind speed, fluctuate in a narrower range, from 5.7mph (9.2km/h) to 7.3mph (11.7km/h) throughout the year.

Spokane's unique weather patterns deserve mention. December sees the highest snowfall with an impressive 8.74" (222mm), significantly more than any other month. Yet, sunshine is plentiful as well, peaking at an inspiring 12 hours per day in July and August.

The best time to visit Spokane

For the sun seekers and warmth lovers, the best time to visit Spokane is undoubtedly from June through August. During these months, not only does the city enjoy its highest temperatures with averages soaring to the early 80s°F, but it also sees its lengthiest sunshine hours between 10.2 hours to 12 hours per day. Furthermore, this period witnesses the lowest rainfall and relative humidity levels offering pleasant and comfortable climatic conditions ideal for outdoor activities.

The worst time to visit Spokane

Based strictly on weather patterns, the least advantageous time to visit Spokane would be between December to February. Winter sets in with temperatures plunging to lows around 22.1°F (-5.5°C) in December and January. The city also attains its highest annual snowfall, making travel uncertain and potentially hazardous. While January does boast lower humidity levels, visibility decreases to 4 miles due to fog and snow, making outdoor sightseeing less comfortable.

Spring weather in Spokane

Spring in Spokane heralds a gradual warming with temperatures ascending from chilly lows of 31.6°F (-0.2°C) in March to more comfortable 43.3°F (6.3°C) by May. The change in season brings a second wet spell with the city receiving a rainfall of between 1.5" (38mm) and 2.13" (54mm). Despite this, visitors can expect increased sunshine hours, steadily rising from 6.4 hours to 10.3 hours from March to May.

Summer weather in Spokane

Summer signifies the arrival of Spokane's driest and warmest phase. From June through August, average temperatures hover from 71.4°F (21.9°C) to 83.7°F (28.7°C). These months yield less than half an inch of rainfall, creating a climate suited for open-air pursuits. Daily sunshine extends from 10.6 hours to 12 hours, contributing to a sunny and vibrant summer environment.

Autumn weather in Spokane

Autumn in Spokane witnesses temperatures on a downward slope, sliding from 72.9°F (22.7°C) in September to 41.7°F (5.4°C) by November. Precipitation amounts increase gradually from 0.63" (16mm) to 1.69" (43mm) as the city transitions into its wet season. Despite the dampening weather, autumn showcases a significant amount of sunshine ranging from 10.2 to 6.4 daylight hours, providing opportunities for remarkable fall foliage viewing.

Winter weather in Spokane

Winter in Spokane unveils a snowy landscape. December and January are the coldest months with average temperatures dipping from 32.2°F (0.1°C) to 22.8°F (-5.1°C). Snowfall peaks in December with 8.74" (222mm), contributing to a picturesque, albeit colder and damper, winter environment. Despite these lower temperatures, Winter in Spokane can still offer clear, sunny skies with average daylight hours ranging from 8.5 to 9.3 hours. This period, however, sees decreased visibility due to foggy conditions.

Weather in January

January greets Spokane with low-temperature invitations, a stern prelude to the winter's peak. Heavy snow takes the stage in winter dramas, with the highest snowfall recorded this month, reaching 10.39" (264mm). The combination of high relative humidity at 89% and generally low temperatures gives the city a chilly embrace. Weather in January »

Weather in February

Spokane's February weather continues the winter storyline, albeit with a softer touch as temperatures slightly swing towards warmth. Fabulously featuring a decrease in rainfall to 1.46" (37mm), the second lowest next to August. Weather in February »

Weather in March

March sees Spokane’s weather shift towards the early signs of spring. The road from winter to spring is painted with increased rainfall to 2.13" (54mm), marking the start of the transition. The city experiences less snow, relieving landscapes from their winter shrouds. Weather in March »

Weather in April

April welcomes the spring proper to Spokane, with a bloom of transformation in weather conditions. Embodying the blossoming spirit of spring, the temperature takes a steady climb reaching a comparatively pleasant high of 54.9°F (12.7°C) on average. Weather in April »

Weather in May

May brings a warmer breath of air to Spokane as the gateway to summer beckons. The average temperature reaches a mild high of 65.8°F (18.8°C), casting off the last layers of spring chill. Rainfall maintains modest levels ensuring a balanced and welcoming environment. Weather in May »

Weather in June

June in Spokane is the herald of the summer season, a month of transition where days stretch longest. The temperature exhibits a continued upward trend, culminating in the pleasant warmth of an average high of 71.4°F (21.9°C). Rainfall dips to its lowest point at 1.34" (34mm), allowing for mostly dry conditions. Weather in June »

Weather in July

July in Spokane is the epitome of summer, boasting its highest temperatures and extended sunlight hours. Truly living up to the summer emblem, July reports the highest temperature reaching a scorching 83.7°F (28.7°C) on average. Weather in July »

Weather in August

August sustains the heat and vibrant mood in Spokane, keeping the summer spirit alive. Even matching July in terms of the highest temperature, also reaching 83.7°F (28.7°C), August does not break the summer spell. Rainfall remains low, barely interrupting the sun-drenched days. Weather in August »

Weather in September

As September steps in, Spokane transitions from scorching summer towards the bountiful harvest season. With a significant drop to an average of 72.9°F (22.7°C), the temperature cools down, hinting at summer's end. Rainfall slightly ascends once again to 0.63" (16mm), marking the start of autumn's transient tears. Weather in September »

Weather in October

October in Spokane stages a celebration of autumn's richness, and the weather obediently falls in line. Cooling temperatures and a subtle increase in rainfall to 1.61" (41mm) set the city on the autumnal path. The season's golden wonder is enhanced by an increasing cloudiness, creating dramatic skies. Weather in October »

Weather in November

November in Spokane, largely dominated by chill and cloudiness, is the transition to winter. As the temperature dips further to an average low of 30.4°F (-0.9°C), winter starts knocking on Spokane's door. The city prepares for more snowfall, reaching an initial amount of 4.06" (103mm). Weather in November »

Weather in December

December in Spokane officially welcomes winter with snow-clad landscapes and an overarching festive spirit. Weather brings extreme cold: temperatures fall to their lowest averages, with the life thermometer hitting 22.1°F (-5.5°C). Weather in December »
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month?

With an average relative humidity of 89%, January is the most humid month.

How many days does it rain?

In Spokane, during the entire year, the rain falls for 127.8 days and collects up to 16.93" (430mm) of precipitation.

When does it snow?

January through May, September through December are months with snowfall.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 14.9 days and accumulates 10.39" (264mm) of snow.

How much does it snow in Spokane?

Throughout the year, there are 62.3 snowfall days, and 37.83" (961mm) of snow is accumulated.

When is the lowest UV index?

The months with the lowest UV index are February and December, with an average maximum UV index of 1.

What is the rainiest month in Spokane?

The month with the most rainfall is March, when the rain falls for 15.9 days and typically aggregates up to 2.13" (54mm) of precipitation.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow?

In Spokane, snow does not fall in June through August.

When are the longest days?

June has the longest days of the year, with an average of 15h and 54min of daylight.

What is the warmest month?

The warmest period falls in July and August, when the average high-temperature reaches 83.7°F (28.7°C).

When is the highest UV index?

With an average maximum UV index of 7, July is the month with the highest UV index.

What is the least humid month?

With an average relative humidity of 38%, August is the least humid month.

What is the driest month?

The month with the least rainfall is August, when the rain falls for 5.8 days and typically collects 0.35" (9mm) of precipitation.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 12h of sunshine.

What time of the year is the coldest in Spokane?

In Spokane, December is known for its average lowest temperatures, reaching a high of 32.2°F (0.1°C) and a low of 22.1°F (-5.5°C).

What is the month with the shortest days?

With an average of 8h and 30min of daylight, December has the shortest days of the year in Spokane.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 3.9h of sunshine.

Average temperature
Spokane, WA

Average temperature - Spokane, WA

The warmest months (with the highest average high temperature) are July and August (83.7°F).
The month with the lowest average high temperature is December (32.2°F).

The month with the highest average low temperature is August (59°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).

Average pressure
Spokane, WA

Average pressure - Spokane, WA

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).

Average wind speed
Spokane, WA

Average wind speed - Spokane, WA

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity
Spokane, WA

Average humidity - Spokane, WA

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (38%).

Average rainfall
Spokane, WA

Average rainfall - Spokane, WA

The wettest month (with the highest rainfall) is March (2.13").
The driest month (with the least rainfall) is August (0.35").

Average rainfall days
Spokane, WA

Average rainfall days - Spokane, WA

The month with the highest number of rainy days is April (16.3 days).
The month with the least rainy days is July (4.9 days).

Average snowfall
Spokane, WA

Average snowfall - Spokane, WA

The month with the highest snowfall is January (10.39").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Spokane, WA

Average snowfall days - Spokane, WA

The month with the highest number of snowfall days is December (15.6 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Spokane, WA

Average daylight / Average sunshine - Spokane, WA

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).

Average sunshine days
Spokane, WA

Average sunshine days - Spokane, WA

The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is March (9.8 days).

Average cloud cover
Spokane, WA

Average cloud cover - Spokane, WA

The months with the most cloud cover are January and December (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility
Spokane, WA

Average visibility - Spokane, WA

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).

Spokane, Washington, USA

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