Spokane, Washington – Climate and Average Weather Year Round: A Comprehensive Overview

Nestled in eastern Washington, Spokane offers a diverse climate with distinct seasons that appeal to many.

In the summer, temperatures often reach a high of 86°F in July, while the colder months can drop to lows around 22°F in December.

This variation provides a range of activities and experiences for residents and tourists alike, including winter sports and summer festivals.

Rainfall in Spokane is relatively low, averaging about 17 inches annually, which is less than the United States average of 38 inches.

The city also sees an impressive 44 inches of snow each year, which provides ample opportunities for skiing and snowboarding.

Despite these wet and snowy conditions, Spokane enjoys clear skies and sunshine for many days throughout the year.

Monthly weather patterns in Spokane show that spring, summer, fall, and winter each have their own unique characteristics.

For example, during the colder months from November to February, daily high temperatures stay below 45°F.

In contrast, the warm season from June to September brings daily highs above 78°F, making it perfect for outdoor adventures.

Average Temperature in Spokane, Washington

Spokane experiences a wide range of temperatures throughout the year. The climate changes significantly from month to month, with a mix of hot summers and cold winters.

Summer: The hot season in Spokane lasts from mid-June to early September. July is the hottest month, with average high temperatures around 86°F and lows near 58°F.

Winter: The cold season stretches from mid-November to late February. During this time, temperatures often stay below 45°F, with the coldest month being January. Average low temperatures in January can reach down to 22°F.

Spring and Fall: Spring and fall see milder temperatures.

May has average highs around 70°F, and October sees highs around 60°F. These seasons are often marked by clear skies and comfortable weather.

Monthly Average Temperatures

This combination of seasonal variations makes Spokane a city with diverse weather patterns. The temperatures can shift quickly between months, offering a unique climate experience each season.

For detailed articles on temperature variations, one can refer to sources like this.

Winter months tend to have more precipitation, while summer is relatively dry. This affects the average temperatures experienced throughout the year, shaping the distinct climate of Spokane.

Average Precipitation in Spokane, Washington

Spokane sees varied precipitation patterns throughout the year, with rain being more common during certain months, while other periods are characterized by snowfall. This section will give you essential details about the rain and snow you can expect in Spokane.

Average Rainfall in Spokane, Washington

Rain in Spokane is typically spread throughout the year, but it does vary by season. The city receives an average of around 17 inches of rainfall annually.

The wettest month tends to be November, with about 2.2 inches of rain.

Months like July and August experience lower rainfall, usually around 0.6 inches each.

October also sees significant precip, with almost 1.6 inches.

In spring months, such as April, rainfall is moderate, averaging around 1.2 inches.

These patterns help make Spokane’s climate balanced in terms of moisture.

Average Snow in Spokane, Washington

Snowfall in Spokane varies widely depending on the time of year.

The snowiest month is typically December, with an average of 13.4 inches of snow.

February and January are also snowy, seeing about 11.2 and 13 inches of snow respectively.

Snow starts to taper off by March, where the city usually gets around 4.7 inches.

The total annual snowfall in Spokane averages around 44 inches.

Winter months bring higher amounts of snow, making the city a hub for snow-related activities and events.

Sites like Snow and Ice provide articles on dealing with winter weather conditions.

Spokane’s snowfall gives it a distinct seasonal charm that residents have come to expect.

Average Sun in Spokane, Washington

Spokane experiences various daylight hours and sunshine throughout the year. This section provides detailed information on the average sunlight Spokane receives, with an emphasis on solar energy measurements.

Average Daily Shortwave Solar Energy in Spokane, Washington

In Spokane, the amount of daily shortwave solar energy varies throughout the year. This measure helps understand how much sunlight is available for solar panels and similar uses.

During July and June, Spokane experiences the most sunshine, with longer daylight hours.

On average, Spokane gets about 7.4 kWh/m² of solar energy per day in July. This is important for residents using solar panels, as the energy output is highest in these months.

Winter months, particularly December and January, see the fewest hours of sunshine.

December averages 1.7 kWh/m² per day. This lower solar energy indicates fewer daylight hours and more overcast days.

Annual solar energy affects various activities, from gardening to energy production. Knowing the average solar energy helps Spokane residents plan their activities and manage resources effectively.

Average Humidity in Spokane, Washington

Spokane experiences varying levels of humidity throughout the year. Relative humidity measures how full the air is with moisture compared to the maximum it could hold at that temperature.

Monthly Relative Humidity:

• January: High levels of humidity, but specific data not listed.
• July: The least humid month with an average of 44% relative humidity.
• December: The most humid month with an average of 86% relative humidity.

Annual Average:

• The average annual relative humidity is around 66%.

Dew Point

The dew point is a measure of how much moisture is in the air. More specifically, it indicates the temperature at which air becomes saturated with moisture:

• Annual Average Dew Point: 36°F.

Impact of Humidity:

In Spokane, humidity levels can impact comfort:

• High Humidity: Often feels warmer because sweat evaporates more slowly.
• Low Humidity: Usually feels cooler and can cause dry skin or irritation.

Understanding Spokane’s humidity patterns can help you plan for comfort, from heating in winter to cooling in summer.

Average Wind in Spokane, Washington

Spokane, Washington experiences varying wind speeds throughout the year. The wind is a crucial aspect of its weather.

Wind Speed
Average wind speeds in Spokane are around 7 mph. These speeds can be felt relatively calm compared to other areas.

Windiest Month
April tends to be the windiest month. During this time, wind speeds can reach up to 10 mph on average.

Hourly Variation
Wind speeds typically increase in the afternoon. Morning hours usually have milder winds around 5 mph. By the afternoon, wind speeds often reach their peak.

Wind Patterns
Predominantly, winds come from the west, especially in spring. This pattern remains relatively consistent year-round.

Average Air Quality in Spokane, Washington

Spokane’s air quality varies throughout the year. The main pollutants monitored include PM2.5, PM10, and ozone. PM2.5 are fine particles, while PM10 includes both coarse and fine particles. Ozone levels are measured from May to October during the ozone season.

Main Pollutants

• PM2.5: Fine particles that can enter the respiratory system.
• PM10: Combined coarse and fine particles present in the air.
• Ozone: Measured during warmer months and can affect respiratory health.

Monitoring Sites

Several monitoring sites in Spokane County keep track of air quality. Residents can view current trends and historical data through various online platforms.

• Spokane Regional Clean Air Agency: Provides real-time monitoring.
• AccuWeather: Offers localized air quality forecasts.
• IQAir: Shares real-time, historical, and forecast air quality data.

Real-Time Data

The air quality index (AQI) ranges from good to hazardous. In Spokane, AQI data often falls within the “Good” category but can change depending on weather patterns, wildfires, and other factors.

| Date       | AQI      | PM2.5 Levels (µg/m³) | PM10 Levels (µg/m³) | Ozone (ppb) |
|------------|----------|----------------------|---------------------|-------------|
| June 23    | Good 31  | 10                   | 15                  | 25          |
| July 15    | Moderate | 40                   | 30                  | 40          |
| August 05  | Unhealthy| 70                   | 50                  | 55          |

Visibility can be affected by pollutants, causing it to drop during poorer air quality days.

Pressure changes can influence the dispersion of particles, impacting air quality levels.

Residents are encouraged to stay updated on air quality conditions, especially during wildfire season. This helps in planning outdoor activities and maintaining their health.

Topography of Spokane, Washington

Spokane, located in eastern Washington, sits as a city marked by diverse topographical features. Its coordinates are approximately 47.6588° N latitude and 117.4260° W longitude.

The city rests on the Spokane River, contributing to its varied terrain.

The average elevation of Spokane is around 2,149 feet.

Minimum elevation here is noted at 1,542 feet while the maximum elevation can reach up to 3,661 feet.

Residents and visitors alike will notice the city’s landscape varies greatly, with river valleys and upland areas presenting different elevations. The city’s diverse terrain creates an array of beautiful scenic views.

Key Elevation Facts:

• Average Elevation: 2,149 feet
• Minimum Elevation: 1,542 feet
• Maximum Elevation: 3,661 feet

Due to its varied elevation, Spokane experiences different microclimates and a range of weather patterns. Many hills and valleys create unique pockets of environmental conditions within a relatively small area.

Extreme Weather Events that Occur in Spokane, Washington

Spokane experiences a variety of extreme weather events throughout the year.

Heatwaves are common during the summer months, with temperatures frequently exceeding 100 degrees Fahrenheit. For example, recent heatwaves have seen temperatures rise to 104 degrees.

Wildfires are another significant concern during the hot, dry summers. The combination of high temperatures and low humidity can create perfect conditions for wildfires to ignite and spread quickly.

In the winter, snowstorms and freezing rain events can cause hazardous travel conditions. Spokane typically receives around 44 inches of snowfall each winter. Occasionally, heavy snowstorms can lead to significant snow accumulation in a short period.

Windstorms can occur at various times of the year. These can result in downed trees and power lines, causing power outages and property damage. Wind gusts can sometimes exceed 50 mph during these events.

Flooding is also a risk, particularly in the spring when snowmelt increases, leading to rising river levels. Heavy rainfall can exacerbate this issue, leading to localized flooding in low-lying areas.

Recent records indicate that Spokane experienced some of the hottest temperatures on record, highlighting the city’s vulnerability to extreme heat events. Maintaining awareness and preparedness for these various extreme weather conditions is essential for residents and visitors alike.

Best Time of the Year to Visit Spokane, Washington

Spokane experiences diverse weather throughout the year, offering unique experiences depending on the season. Each season has its charm, from pleasant spring days to cold winter nights.

What is Spokane, Washington Like in Spring

Spring in Spokane is from March to May. The temperatures range from 40°F in early spring to 66°F in late spring.

This season is marked by blooming flowers and green landscapes, making it an excellent time for outdoor activities like hiking and visiting parks. Rainfall can be moderate, so carrying a light jacket is advisable.

Spring attracts tourists due to its comfortable weather. It is a great time for those who enjoy mild temperatures and blossoming nature. March and April may still be a bit chilly, but May starts to warm up, making it very pleasant.

What is Spokane, Washington Like in Summer

Summer in Spokane spans from June to August. The average temperatures range from 55°F to 91°F. July is the warmest month with temperatures around 84°F.

The city enjoys long days of sunshine, making it ideal for swimming, boating, and other water-related activities.

The dry weather and clear skies also make it perfect for festivals and outdoor events. It rarely rains, allowing visitors to plan their trips without worrying about weather disruptions. Due to the comfortable warmth, summer is typically the peak tourist season in Spokane.

What is Spokane, Washington Like in Fall

Fall in Spokane lasts from September to November. Temperatures begin to cool, ranging from 68°F in early September to 39°F by November.

The fall foliage is stunning, offering a picturesque view of orange, red, and yellow leaves.

This season is also a good time for visiting vineyards and taking scenic drives. October provides a mix of mild and cool days, making it comfortable to explore the city’s outdoor attractions. As the temperature drops, it becomes less crowded, offering a quieter visit.

What is Spokane, Washington Like in Winter

Winter in Spokane covers December to February. The temperatures range from 22°F to 40°F, with January being the coldest month.

The city receives an average of 45 inches of snow annually, making it a winter wonderland for snow enthusiasts.

Winter activities like skiing, snowboarding, and ice skating are popular. Despite the cold weather, Spokane offers indoor attractions and holiday events during this time.

The snowy landscape creates a unique and magical experience for visitors who enjoy winter sports and cozy indoor settings.