Climate and monthly weather forecastSpokane, WA
Climate and monthly weather forecast
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
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With an average relative humidity of 89%, January is the most humid month.
In Spokane, during the entire year, the rain falls for 127.8 days and collects up to 16.93" (430mm) of precipitation.
January through May, September through December are months with snowfall.
January is the month with the most snowfall. Snow falls for 14.9 days and accumulates 10.39" (264mm) of snow.
Throughout the year, there are 62.3 snowfall days, and 37.83" (961mm) of snow is accumulated.
The months with the lowest UV index are February and December, with an average maximum UV index of 1.
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.
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.
In Spokane, snow does not fall in June through August.
June has the longest days of the year, with an average of 15h and 54min of daylight.
The warmest period falls in July and August, when the average high-temperature reaches 83.7°F (28.7°C).
With an average maximum UV index of 7, July is the month with the highest UV index.
With an average relative humidity of 38%, August is the least humid 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.
The month with the most sunshine is August, with an average of 12h of sunshine.
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).
With an average of 8h and 30min of daylight, December has the shortest days of the year in Spokane.
The month with the least sunshine is December, with an average of 3.9h of sunshine.
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 in January:
30.19"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.17"Hg
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 in January:
5.9mph - Average wind speed in February:
6.2mph - Average wind speed in March:
7.2mph - Average wind speed in April:
7.3mph - Average wind speed in May:
6.4mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.7mph - Average wind speed in September:
5.9mph - Average wind speed in October:
6.1mph - Average wind speed in November:
6.3mph - Average wind speed in December:
5.8mph
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
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 in January:
2.09" - Average rainfall in February:
1.46" - Average rainfall in March:
2.13" - Average rainfall in April:
1.5" - Average rainfall in May:
1.65" - Average rainfall in June:
1.34"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.35" - Average rainfall in September:
0.63" - Average rainfall in October:
1.61" - Average rainfall in November:
1.69" - Average rainfall in December:
2.09"
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 in January:
9.2 days - Average rainfall days in February:
8.4 days - Average rainfall days in March:
15.9 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
13.4 days - Average rainfall days in June:
11.7 days
- Average rainfall days in July:
4.9 days - Average rainfall days in August:
5.8 days - Average rainfall days in September:
7.5 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
12.2 days - Average rainfall days in December:
9.6 days
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 in January:
10.39" - Average snowfall in February:
7.72" - Average snowfall in March:
4.84" - Average snowfall in April:
1.42" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
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 in January:
14.9 days - Average snowfall days in February:
12.3 days - Average snowfall days in March:
7.4 days - Average snowfall days in April:
3.4 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.2 days - Average snowfall days in October:
0.9 days - Average snowfall days in November:
7.3 days - Average snowfall days in December:
15.6 days
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 in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
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).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 24min - Average sunshine in April:
9h and 12min - Average sunshine in May:
10h and 18min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 12min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 54min
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 in January:
13 days - Average sunshine days in February:
10.8 days - Average sunshine days in March:
9.8 days - Average sunshine days in April:
11.2 days - Average sunshine days in May:
14.9 days - Average sunshine days in June:
16.4 days
- Average sunshine days in July:
24.1 days - Average sunshine days in August:
22.3 days - Average sunshine days in September:
20.3 days - Average sunshine days in October:
16.6 days - Average sunshine days in November:
11.8 days - Average sunshine days in December:
12 days
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 UV index
Spokane, WA
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).
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
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).
