Idaho Falls Climate & Monthly Temperature Overview – United States

Summer

Idaho Falls experiences warm and dry summers with average temperatures ranging from 65°F (18°C) to 85°F (29°C). The warmest months are July and August, with average highs exceeding 90°F (32°C). Precipitation is minimal during this season, with an average monthly rainfall of around 0.5 inches (13 mm). The long days and clear skies make summer an ideal time for outdoor activities, such as hiking, fishing, and camping.

Winter

Winters in Idaho Falls are cold and snowy, with average temperatures plummeting to 20°F (-7°C). The coldest months are December and January, when average lows can dip below 10°F (-12°C). Snowfall is abundant, averaging around 44 inches (112 cm) annually. Frequent snowstorms can lead to slick driving conditions and limited visibility. Despite the low temperatures, winter offers opportunities for snow-related activities, including skiing, snowboarding, and snowshoeing.

Average Temperature and Seasonal Variations

Idaho Falls, located in eastern Idaho, experiences a continental climate with significant seasonal variations. The average annual temperature in Idaho Falls is 48.5°F (9.2°C). Winters are cold, with average temperatures in January dropping to 22°F (-6°C). During the colder months, temperatures can plummet to below freezing, with occasional snowfall. In contrast, summers are warm, with average temperatures in July reaching up to 75°F (24°C). The warm season is characterized by dry and sunny conditions, providing ample opportunities for outdoor activities.

Temperature Extremes and Climate Trends

Idaho Falls has recorded both extremely high and low temperatures. The highest temperature ever recorded in the city was 108°F (42°C) in July 1934, while the coldest temperature was -38°F (-39°C) in January 1950. These extreme temperatures are indicative of the city’s continental climate, which can experience drastic fluctuations in temperatures during different seasons. In recent years, Idaho Falls has also experienced a gradual increase in average temperatures, consistent with the broader trend of global climate change. This warming trend is expected to continue in the coming decades, potentially leading to changes in local climate patterns and ecosystems.

Clouds and Weather in Idaho Falls

Idaho Falls experiences a variety of cloud formations due to its location in the northwest United States, where air masses from the Pacific Ocean and the Rocky Mountains converge. During the summer months, the area sees clear, sunny skies with occasional cumulus clouds, promising pleasant outdoor conditions. In contrast, winter brings overcast conditions, with frequent stratus clouds bringing periods of rain or snow.

Types of Clouds

Idaho Falls’ cloud cover is predominantly composed of low to mid-level clouds such as stratus, altostratus, and altocumulus. Stratus clouds are flat and gray, indicating stable weather conditions. Altostratus clouds are similar in appearance but have a higher altitude, often covering the entire sky before giving way to precipitation. Altocumulus clouds are characterized by their rounded, puffy shapes and appear at intermediate heights, indicating fair weather or a transition to more unstable conditions.

Precipitation Patterns

Idaho Falls receives average annual precipitation of around 25 inches, which is relatively low compared to many other parts of the United States. The precipitation pattern in Idaho Falls is bimodal, with two distinct peaks in spring (April-May) and fall (September-October). During these periods, the area experiences frequent rainfall and occasional thunderstorms, influenced by the movement of Pacific storm systems and moist air from the Gulf of Mexico. Summers (June-August) are typically dry with sporadic thunderstorms, while winters (November-March) are cold and snowy.

Seasonal Variability

The amount and type of precipitation in Idaho Falls vary significantly throughout the year. Spring and fall are the wettest seasons, each receiving approximately 6-7 inches of precipitation. Summer is relatively dry, with an average of 2-3 inches of precipitation, primarily in the form of thunderstorms. Winters are the driest season, receiving only around 2-3 inches of precipitation, mostly in the form of snow. The average annual snowfall is about 40 inches, with the heaviest snowfall occurring in December and January.

Annual Rainfall and Distribution

Idaho Falls, Idaho, experiences a semi-arid climate with an average annual rainfall of approximately 13.8 inches (351 mm). The precipitation distribution is highly skewed, with the majority of rainfall occurring from March to June and during the months of October and November. The wettest month is May, which sees an average of 2.5 inches (64 mm) of rainfall. In contrast, January and February are the driest months, receiving less than 0.5 inches (13 mm) of rainfall.

Seasonal Variability and Potential Impacts

Rainfall in Idaho Falls exhibits significant seasonal variability, reflecting the region’s distinct climate patterns. During the winter months, precipitation tends to be low and primarily falls in the form of snow, with the average snowfall amounting to 57 inches (145 cm). The spring season brings increasing rainfall, with occasional thunderstorms and a potential for flash flooding. Summer months are characterized by warm and dry conditions, although brief thunderstorms can provide occasional bursts of precipitation. Autumn brings a resurgence of precipitation, with the potential for heavy rains and occasional snowstorms as temperatures cool. This variability in rainfall has implications for both agricultural and water resource management in the region.

Average Snowfall and Historical Extremes

Idaho Falls receives an average annual snowfall of 41 inches (104 cm), with significant year-to-year variability. The snow season typically runs from November to April, with the heaviest snowfall occurring in January and February. While snowfall is generally consistent, extreme events can occur. In the winter of 2007-2008, Idaho Falls recorded a record-breaking 105.5 inches (268 cm) of snowfall, while the following winter brought just 17.5 inches (44 cm).

Impact on Local Life and Economy

Snowfall in Idaho Falls has a significant impact on local life and the economy. Heavy snowfalls can lead to school closures, traffic disruptions, and increased energy consumption for heating. However, snow also attracts winter sports enthusiasts, boosting tourism and providing recreational opportunities. The city’s snowplowing operations are well-organized, ensuring that roads are generally kept clear and passable. Snow removal services also play a vital role in maintaining homes and businesses. Overall, while snowfall can create challenges, it is an integral part of Idaho Falls’ identity and has a substantial influence on the community’s lifestyle and economic activities.

Sunrise and Sunset Times

The sun follows a predictable pattern in Idaho Falls, United States. Sunrise and sunset times vary throughout the year due to the Earth’s tilt and its orbit around the sun. During the summer months (June to August), the sun rises around 5:30 AM and sets around 9:00 PM. These long daylight hours provide ample time for outdoor activities and exploration. In the winter months (December to February), the sun rises around 8:00 AM and sets around 5:00 PM. These shorter daylight hours can make it challenging for early morning or evening commutes and outdoor activities.

Sunlight Hours

Idaho Falls enjoys an average of 248 sunny days per year. This makes it one of the sunniest cities in the United States. The city receives an average of 3,100 hours of sunshine annually. During the summer months, Idaho Falls experiences long days with high levels of solar radiation, providing ample opportunities for solar energy generation and outdoor recreation. In the winter months, the city still receives significant sunlight, but the days are shorter and the sun’s intensity is lower.

Moonrise and Moonset Times

The times of moonrise and moonset in Idaho Falls vary throughout the month and year due to the Earth’s rotation and the Moon’s orbit around the Earth. Typically, the Moon rises in the east and sets in the west, following a roughly parabolic path across the sky. The exact times of moonrise and moonset can be calculated using astronomical software or found in almanacs or online resources.

Moon Phases

As the Moon orbits the Earth, the amount of sunlight it reflects varies, resulting in different moon phases. The four main phases are:

  • New Moon: When the Moon is directly between the Earth and the Sun, its dark side faces the Earth, making it invisible.
  • Waxing Crescent: As the Moon moves away from the Sun, a small sliver of its illuminated side becomes visible.
  • First Quarter: When the Moon is at a right angle to the Earth and the Sun, exactly half of its illuminated side faces the Earth.
  • Waxing Gibbous: The illuminated side of the Moon continues to grow as it moves further around the Earth.
  • Full Moon: When the Moon is opposite the Sun, its entire illuminated side faces the Earth, making it appear as a full circle.
  • Waning Gibbous: After the Full Moon, the illuminated side of the Moon gradually decreases.
  • Third Quarter: When the Moon is again at a right angle to the Earth and the Sun, but on the opposite side of the Sun, half of its illuminated side faces the Earth.
  • Waning Crescent: Only a small sliver of the Moon’s illuminated side remains visible as it moves closer to the Sun.

Humidity Levels in Idaho Falls

Idaho Falls, located in the Snake River Plain of eastern Idaho, typically experiences low to moderate humidity levels throughout the year. The average annual humidity in the city is approximately 50%, which is significantly lower than the national average. During the summer months, humidity levels tend to be slightly higher, ranging from 40% to 60%, due to increased evaporation from the Snake River and surrounding wetlands. However, even during the warmest months, humidity rarely exceeds 70%.

Seasonal Variations in Humidity

Humidity levels in Idaho Falls exhibit seasonal variations. During the winter months, the cold temperatures result in low humidity levels, typically below 30%. This is because the air can hold less moisture at lower temperatures. As spring approaches, humidity levels gradually increase as the temperature rises and melting snow and runoff contribute to increased evaporation. By summer, humidity levels reach their peak, with average values around 50%. In the fall, humidity levels decline as temperatures cool and evaporation decreases. However, even during the driest months, Idaho Falls rarely experiences excessively dry conditions, making it a comfortable place to live and visit throughout the year.

Average Wind Speed and Direction

Idaho Falls experiences moderate wind speeds throughout the year, with an average annual wind speed of 7.6 mph (12.2 km/h). The prevailing wind direction is from the west-southwest, with the strongest winds typically occurring during the spring season. In general, wind speeds are higher during the daytime and weaker at night.

Seasonal Wind Patterns

The seasonal distribution of wind speed in Idaho Falls varies significantly. During the winter months (December to February), wind speeds are relatively low, averaging around 6 mph (9.7 km/h). As spring approaches, wind speeds gradually increase, reaching their peak in April and May, with average speeds of 9 mph (14.5 km/h). Summer winds are generally lighter, with average speeds around 7 mph (11.3 km/h). In the fall, wind speeds begin to pick up again, reaching a moderate level in October and November, with average speeds of 8 mph (12.9 km/h).

Summer (June-August)

Idaho Falls experiences warm, sunny summers with average temperatures ranging from the mid-60s to high 80s Fahrenheit. The long daylight hours provide ample opportunities for outdoor recreation, such as hiking, biking, boating, and fishing. Visitors can also witness the spectacular Snake River Greenbelt Waterfall during the summer months. The Museum of Idaho and the Idaho Falls Art Museum offer a respite from the heat and provide cultural enrichment.

Spring (April-May) and Fall (September-October)

Spring and fall in Idaho Falls offer milder temperatures, making them ideal for exploring the city’s natural beauty. The average temperatures during spring range from the low 40s to mid-60s, while fall temperatures vary from the mid-30s to mid-50s. During these seasons, the landscape transforms into a vibrant tapestry of colors as wildflowers bloom and the leaves turn golden. Outdoor enthusiasts can enjoy scenic walks along the Bonneville Shoreline Trail, or visit the Idaho Falls Zoo to observe a diverse collection of animals.

Solar Energy Production

Idaho Falls, located in eastern Idaho, experiences ample sunshine throughout the year, making it a suitable region for solar energy production. According to data from the National Renewable Energy Laboratory (NREL), Idaho Falls receives an average of 5.7 peak sunlight hours per day, which is higher than the national average. The city has also invested in solar photovoltaic (PV) systems, with an installed capacity of over 25 megawatts. These systems generate electricity by converting sunlight into electricity, contributing to the city’s renewable energy portfolio.

Community Initiatives

The City of Idaho Falls has implemented several initiatives to promote solar energy adoption within the community. The city provides financial incentives and assistance to residents and businesses installing solar PV systems, including rebates, tax credits, and low-interest loans. Additionally, the city has established a community solar garden, where residents can purchase shares in a solar PV system and receive electricity credits on their utility bills. These initiatives have helped increase the uptake of solar energy in Idaho Falls, reducing the city’s reliance on fossil fuels and promoting environmental sustainability.

Ranges and Peaks

The topography of Idaho Falls is characterized by the towering Teton Range, which lies to the west of the city. These rugged mountains, part of the Rocky Mountain system, feature dramatic peaks such as the Grand Teton, the highest point in the state of Wyoming. The Tetons offer breathtaking views and provide opportunities for hiking, skiing, and wildlife viewing.

Valleys and Rivers

Nestled within the embrace of the Teton Range is the Snake River Valley, which stretches north and south of Idaho Falls. This fertile valley is home to the Snake River, a major waterway that flows through the region. The river’s presence has played a significant role in shaping the landscape, creating rich farmlands and supporting a diverse ecosystem. The Snake River also provides recreational opportunities such as fishing, boating, and tubing.

Idaho Falls Regional Airport (IDA)

Idaho Falls Regional Airport (IDA) is the primary airport serving the city of Idaho Falls and the surrounding region in eastern Idaho. The airport is located approximately 3 miles (4.8 kilometers) northwest of the city center. IDA handles a mix of passenger and cargo flights, with scheduled service to several major airports in the western United States. The airport is also home to several general aviation and charter operators.

Closest Airports to Idaho Falls

The closest airport to Idaho Falls Regional Airport (IDA) is Jackson Hole Airport (JAC), located approximately 80 miles (129 kilometers) to the north in Jackson, Wyoming. JAC is a regional airport with scheduled service to major hubs in the western United States. Other nearby airports include Pocatello Regional Airport (PIH), located approximately 50 miles (80 kilometers) to the south in Pocatello, Idaho, and Boise Airport (BOI), located approximately 150 miles (241 kilometers) to the west in Boise, Idaho.

History and Culture

Idaho Falls is steeped in a rich history that dates back to the early 19th century. The city was founded in 1864 as a trading post and quickly grew into a thriving agricultural and transportation hub. The construction of the Snake River Irrigation Project in the early 20th century transformed the region, bringing water to the arid lands and creating fertile croplands. Idaho Falls played a significant role in the nuclear age as the site of the Idaho National Laboratory, a research and development facility dedicated to nuclear science. The city is home to several museums, including the Idaho Museum of Natural History and the Museum of Idaho, which showcase the region’s natural and cultural heritage.

Recreation and Outdoor Activities

Idaho Falls offers an abundance of recreational opportunities for both residents and visitors. The city is situated along the Snake River, providing access to fishing, boating, and water sports. The River Walk Trail is a popular destination for walking, running, and biking, offering scenic views of the river and the surrounding mountains. Idaho Falls is also a gateway to the surrounding wilderness areas, including the Palisades Reservoir, the Snake River Canyon, and the Targhee National Forest. The area is renowned for its hiking, biking, camping, and wildlife viewing, making it a haven for nature enthusiasts.