Spokane Climate & Monthly Temperature Overview – United States

Spring and Summer

Spring in Spokane arrives in late March, bringing with it mild temperatures and sporadic rainfall. April and May typically see a mix of sunshine and clouds, with temperatures ranging from the mid-50s to mid-70s Fahrenheit (13-24 degrees Celsius). By June, summer has officially commenced, characterized by warm and sunny weather. July and August are the warmest months, with average high temperatures in the low to mid-80s Fahrenheit (29-30 degrees Celsius). The humidity levels during summer are generally low, making for comfortable outdoor activities.

Autumn and Winter

Autumn in Spokane begins in September, bringing with it cooler temperatures and a gradual increase in precipitation. The leaves of deciduous trees transform into vibrant hues of red, orange, and gold, creating a picturesque backdrop. October and November experience a wide range of weather conditions, from sunny days to overcast skies and occasional showers. By December, winter has arrived, bringing with it cold and snowy conditions. January and February are the coldest months, with average low temperatures in the mid-20s Fahrenheit (-4 degrees Celsius). The snowfall in Spokane can vary significantly from year to year, with an average of 50 inches (127 centimeters) annually.

Seasonal Variation

Spokane’s average temperature varies significantly throughout the year, reflecting the region’s continental climate. During the summer months (June to August), the average high temperature rises to around 80°F (27°C), while the average low remains around 55°F (13°C). This period is characterized by warm, dry days and clear nights. In contrast, the winter months (December to February) are cold and snowy, with average high temperatures hovering around 35°F (2°C) and average lows dipping to 20°F (-7°C).

Influencing Factors

The average temperature in Spokane is influenced by several factors, including its geographic location, altitude, and prevailing weather patterns. Situated in the inland Pacific Northwest, Spokane is far from any large bodies of water that would moderate its temperatures. Its relatively high altitude (2,326 feet above sea level) also contributes to the city’s colder winter temperatures. Additionally, Spokane’s location within the rain shadow of the Cascade Mountains means that it receives less precipitation than other areas in the region, resulting in colder winters and warmer summers.

Cloud Cover and Types

Spokane’s cloud cover varies throughout the year, with summer months experiencing less cloudiness due to warmer temperatures and more stable atmospheric conditions. However, during fall and winter, the city sees an increase in cloud cover as cold fronts and moisture from the Pacific Ocean move into the region. In spring, the cloud cover is generally moderate, with a mix of sunny and cloudy days.

The most common cloud types in Spokane are cirrus, cumulus, and stratus. Cirrus clouds are thin, wispy clouds that appear high in the atmosphere and are composed of ice crystals. Cumulus clouds are puffy, white clouds that form at low to middle levels of the atmosphere. Stratus clouds are flat, gray clouds that cover the entire sky and can produce drizzle or light rain.

Impact of Cloud Cover

Cloud cover has a significant impact on Spokane’s weather patterns. Heavy cloud cover can block sunlight, leading to cooler temperatures and reduced visibility. It can also trap moisture in the atmosphere, contributing to precipitation. Low-lying cloud cover can cause fog or mist, which can affect visibility and transportation. On the other hand, clear skies allow more sunlight to reach the surface, resulting in warmer temperatures and better visibility. Cloud cover can also affect precipitation patterns, with heavy cloud cover increasing the likelihood of rain or snow.

Average Precipitation

Spokane has a semi-arid climate, with an average annual precipitation of around 18 inches (457 mm). Precipitation is fairly evenly distributed throughout the year, with slightly drier conditions in the summer months. However, the city can experience occasional heavy rainstorms during the spring and fall.

Seasonal Precipitation Patterns

The driest months in Spokane are July and August, with average monthly precipitation of less than an inch (25 mm). The wettest months are November and December, with average monthly precipitation of over 2 inches (50 mm). Snowfall is common during the winter months, with an average of 30 inches (76 cm) falling each year.

Monthly Distribution

Spokane, located in the Pacific Northwest, experiences a relatively dry climate with distinct seasonal variations in rainfall. During the winter months (November to February), rainfall tends to be higher, with an average of 10 to 15 inches. The wettest month is typically December, with an average rainfall of over 3 inches. In contrast, the summer months (June to August) are noticeably drier, with an average rainfall of less than 1 inch per month. The driest month is usually July, with an average rainfall of around 0.5 inches.

Variability

Rainfall in Spokane exhibits significant variability from year to year. In wet years, the annual rainfall can exceed 25 inches, while in dry years, it may fall below 15 inches. The average annual rainfall for Spokane is approximately 18 inches, which is considerably lower than other cities in the Pacific Northwest, such as Seattle (37 inches) or Portland (42 inches). This variability is attributed to various factors, including the city’s inland location, elevation, and proximity to the Cascade Mountains, which act as a rain shadow.

Seasonal Snowfall Patterns in Spokane

Spokane, Washington experiences seasonal snowfall during the winter months. The city typically receives around 45 inches of snow annually, with the majority falling between November and March. The snowfall tends to be heaviest in January and February, when average monthly snowfall can exceed 12 inches. During these months, snow accumulation can often reach several feet, creating challenging driving conditions and disrupting daily life. While Spokane’s snowfall can be significant, it is generally less than that received by other cities in the nearby Cascade Mountains.

Factors Influencing Snowfall

The amount of snowfall Spokane receives is influenced by several factors, including its elevation, proximity to mountain ranges, and prevailing wind patterns. Situated at an elevation of approximately 1,850 feet, Spokane is relatively high in elevation compared to other cities in the region. This higher elevation increases the likelihood of snowfall, as cold air tends to settle in higher areas. Additionally, Spokane’s proximity to the Cascade Mountains plays a significant role in its snowfall patterns. The mountains act as a barrier, blocking moist air from the Pacific Ocean from reaching the city. As a result, Spokane’s snowfall tends to be less than that received by cities located on the west side of the mountains. The prevailing wind patterns in Spokane also contribute to its snowfall. During the winter months, the region typically experiences easterly winds, which bring cold, dry air from the interior of the continent. These winds can help reduce the moisture available for precipitation, leading to less snowfall.

Average Sunshine Hours

Spokane, United States, boasts an impressive amount of sunshine throughout the year, making it an ideal destination for outdoor enthusiasts. With an average of 228 sunny days annually, the city enjoys a year-round abundance of sunshine. The sunniest months fall between May and September, with July being the peak month, averaging over 310 hours of sunshine. During this period, the days are long, and the skies are predominantly clear, providing ample opportunities for outdoor activities, from hiking and biking to swimming and boating.

Seasonal Variations

Spokane’s sunshine hours vary significantly throughout the year, reflecting the changing seasons. In the winter months, from November to February, the city receives the least amount of sunshine, with an average of around 80-120 hours per month. During this time, the days are shorter, and the sky is often overcast due to the influence of Pacific storms and high-pressure systems. However, the winter season also brings occasional clear days, particularly in December and January, offering a glimpse of the abundant sunshine that the city experiences during the warmer months. Spring and fall months offer a gradual transition, with increasing sunshine hours as the days lengthen and Pacific storms become less frequent.

Moon’s Visibility in Spokane

Spokane, located in the northwestern United States, experiences a diverse range of moon phases and positions throughout the year. During the new moon phase, the moon is not visible from Spokane as it lies between the Earth and Sun, casting no light towards our planet. As the moon progresses through its phases, it gradually becomes more visible, with the first quarter moon appearing as a half-circle. The full moon, when the moon is opposite the Sun, is the most prominent and easily observable phase, casting a bright glow across the night sky.

Moon’s Cultural Significance in Spokane

The moon has a significant cultural and spiritual meaning for many Native American tribes in the Spokane area. The Spokane tribe, for example, traditionally used lunar cycles to guide their seasonal activities, such as hunting and fishing. The full moon was often a time for gatherings, celebrations, and storytelling. Today, the moon continues to hold cultural importance for the Spokane community, with events such as the annual Full Moon Ceremony held to honor its significance and connection to the land.

General Humidity Patterns

Spokane, Washington, experiences relatively low humidity throughout the year due to its inland location and distance from large bodies of water. During the winter months, humidity levels typically fluctuate between 55-70%, making for dry conditions. However, during the spring and summer months, especially July and August, humidity can rise substantially, reaching peaks of 80-95%. This increase in humidity is primarily attributed to warm southerly winds bringing moisture from the Pacific Ocean.

Seasonal Variations

The most significant variations in humidity occur during the summer and winter months. Summer humidity is often accompanied by thunderstorms and occasional rainfall, resulting in higher average moisture levels. In contrast, winter humidity remains consistently low due to the cold, dry air originating from the north. The transition between seasons, particularly during spring and fall, can also bring sudden changes in humidity as weather patterns shift.

Prevailing Winds

The prevailing wind direction in Spokane, United States, is generally from the west-southwest, as indicated by data from the National Weather Service. This means that the majority of winds in Spokane come from this direction. The city’s location in eastern Washington, near the Cascade Mountains, influences this prevailing wind pattern. The mountains act as a barrier to winds from the Pacific Ocean, resulting in winds predominantly from the west-southwest.

Seasonal Wind Variations

While the prevailing wind direction in Spokane remains consistent throughout the year, the wind speed and intensity vary seasonally. During the winter months, winds tend to be stronger and more frequent, particularly during storms and cold fronts. The presence of high-pressure systems over the Pacific Ocean and low-pressure systems over the interior of the continent creates a pressure gradient that drives strong winds into the region. In contrast, during the summer months, winds are typically lighter and less frequent. The influence of the Pacific Ocean and the presence of high-pressure systems result in weaker wind speeds and a more stable atmospheric pattern.

Spring (April-May)

Spring in Spokane is a time of renewal and rebirth. The city comes alive with vibrant colors as the trees and flowers bloom. Temperatures are mild, ranging from the mid-40s to the low 70s Fahrenheit. This makes it an ideal time for outdoor activities, such as hiking, biking, and kayaking. The Lilac Festival, held in late April and early May, is a popular springtime event, showcasing over 25,000 lilac bushes in full bloom.

Summer (June-August)

Summer in Spokane is warm and sunny, with average temperatures in the mid-70s to low 80s Fahrenheit. This makes it a great time to enjoy the city’s numerous parks and beaches. The Spokane Riverfront Park is a popular destination, offering a variety of activities, including boat rentals, walking trails, and a carousel. The Bloomsday Road Race, held in early May, is one of the largest running events in the United States, attracting over 50,000 participants.

Solar Potential

Spokane, located in the Pacific Northwest, has a moderate amount of solar potential. It experiences an average of 2,400 sunshine hours per year, with the summer months offering the most sunlight. However, the region’s winters are typically cloudy and receive less solar radiation. Despite this, the increasing affordability and efficiency of solar panels make it a viable option for homeowners and businesses.

Solar Installations and Incentives

The number of solar installations in Spokane has been steadily increasing in recent years. In 2020, the city had over 600 solar projects, providing a combined capacity of approximately 15 megawatts. This growth is driven by a combination of federal and state incentives, such as the federal solar investment tax credit and Washington’s net metering program. Additionally, Spokane Utilities, the local utility, offers rebates and incentives for solar installations, making it more affordable for residents and businesses to go solar.

Terrain and Vegetation

Spokane, Washington, is situated in the eastern part of the state, nestled between the Rocky Mountains and the Cascade Range. The city’s terrain is characterized by rolling hills, river valleys, and plateaus. The Spokane Valley, which runs through the city’s center, is a broad, flat lowland formed by the Spokane River. The hills surrounding the valley gradually rise to the south and west, with elevations reaching over 3,000 feet in some areas. Spokane is known for its abundant green spaces, with numerous parks and natural areas scattered throughout the city. The largest of these is Riverfront Park, which stretches for over 100 acres along the Spokane River. The park features walking trails, picnic areas, and a variety of entertainment venues.

Climate

Spokane has a humid continental climate, with hot, dry summers and cold, wet winters. Summers typically see average temperatures in the mid-80s, while winters average in the low 30s. The city receives around 18 inches of rain per year, with most falling during the winter months. Snowfall is also common, with an average of over 50 inches per year. Spokane is known for its sunny weather, with an average of over 300 days of sunshine per year. The city’s mild climate and abundance of natural beauty make it a popular destination for outdoor recreation, including hiking, biking, and fishing.

Spokane International Airport (GEG)

Spokane International Airport (GEG) is the primary airport serving Spokane, Washington, and surrounding areas. Located just 5 miles (8 kilometers) from downtown Spokane, GEG is the largest airport in the inland Northwest region of the United States. It offers a wide range of nonstop flights to major cities across the country, including Seattle, Los Angeles, San Francisco, Denver, and Minneapolis. Regional carriers provide service to destinations in Washington, Idaho, Montana, and Oregon. GEG also handles international flights to Vancouver, Canada.

Other Nearby Airports

In addition to Spokane International Airport, there are several smaller airports located within a short driving distance of Spokane. Spokane Felts Field (SFF) is a former military airfield that now serves as a general aviation airport. It is located approximately 3 miles (5 kilometers) from downtown Spokane and has a single runway for smaller aircraft. Pangborn Memorial Airport (EAT) is located in East Wenatchee, Washington, about 75 miles (120 kilometers) southwest of Spokane. It offers commercial service to Seattle, Spokane, and Portland, Oregon. However, the flight options are more limited compared to Spokane International Airport.

Spokane: A City of Natural Beauty and Urban Attractions

Spokane, Washington, is a vibrant city that gracefully blends natural splendor with urban sophistication. Nestled amidst the pristine waters of the Spokane River and surrounded by the rugged Cascade Mountains, Spokane offers an idyllic setting for outdoor enthusiasts and nature lovers alike. The city’s iconic Spokane Falls, a breathtaking waterfall that cascades through the heart of downtown, is a testament to Spokane’s close connection with its natural surroundings. Along the river’s waterfront, scenic parks and trails provide ample opportunities for leisurely strolls, cycling, and kayaking.

Spokane: A Thriving Cultural and Artistic Hub

Beyond its natural beauty, Spokane boasts a rich cultural and artistic heritage. The city is home to several highly acclaimed museums, including the Northwest Museum of Arts and Culture, which houses a vast collection of fine art, history, and indigenous artifacts. The Spokane Symphony, one of the oldest and most respected orchestras in the Northwest, delights audiences with its exceptional performances. Spokane’s vibrant downtown scene features a diverse array of boutiques, galleries, and restaurants, showcasing local artists, makers, and culinary talents. The city’s annual First Fridays Artwalk, a bustling monthly event, offers a unique opportunity to explore the city’s thriving art community and discover hidden gems. Spokane’s thriving arts and culture scene make it an ideal destination for those seeking a stimulating and enriching experience.