Idaho Falls
Idaho, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Idaho Falls, ID

An eye-catching shot of the Snake River, Idaho Falls, with a clear view of the iconic Idaho Falls Temple in the back, through the trees
An eye-catching shot of the Snake River, Idaho Falls, with a clear view of the iconic Idaho Falls Temple in the back, through the trees
January, like December, is another subzero cold winter month in Idaho Falls, Idaho, with average temperature varying between 29.7°F (-1.3°C) and 12.6°F (-10.8°C). With an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 12.6°F (-10.8°C), January is the coldest month. Weather in January »
The last month of the winter, February, is a wintry month in Idaho Falls, Idaho, with average temperature fluctuating between 16.9°F (-8.4°C) and 36.7°F (2.6°C). In February, the average high-temperature slightly increases, from a freezing cold 29.7°F (-1.3°C) in January, to a wintry 36.7°F (2.6°C). Weather in February »

The first month of the spring, March, is a frosty month in Idaho Falls, Idaho, with average temperature fluctuating between 24.8°F (-4°C) and 47.7°F (8.7°C). In March, the average high-temperature rises, from a wintry 36.7°F (2.6°C) in February, to a frosty 47.7°F (8.7°C). Weather in March »

April in Idaho Falls, Idaho, is a mild spring month, with average temperature fluctuating between 31.3°F (-0.4°C) and 58.6°F (14.8°C). In Idaho Falls, the average high-temperature in April rises, from a chilly 47.7°F (8.7°C) in March, to a mild 58.6°F (14.8°C). Weather in April »

May, the last month of the spring, in Idaho Falls, is an enjoyable month, with average temperature ranging between min 38.7°F (3.7°C) and max 67.8°F (19.9°C). In May, the average high-temperature increases, from a moderate 58.6°F (14.8°C) in April, to an enjoyable 67.8°F (19.9°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Idaho Falls, Idaho, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 77.7°F (25.4°C). In June, the average high-temperature rises, from a comfortable 67.8°F (19.9°C) in May, to a moderately hot 77.7°F (25.4°C). Weather in June »

July in Idaho Falls, Idaho, is a tropical summer month, with average temperature varying between 86°F (30°C) and 51.4°F (10.8°C). The warmest month is July, with an average high-temperature of 86°F (30°C) and an average low-temperature of 51.4°F (10.8°C). Weather in July »

The last month of the summer, August, is another warm month in Idaho Falls, Idaho, with average temperature fluctuating between 85.8°F (29.9°C) and 49.8°F (9.9°C). In Idaho Falls, the average high-temperature in August is relatively the same as in July - a warm 85.8°F (29.9°C). Weather in August »

The first month of the autumn, September, is also a moderately hot month in Idaho Falls, Idaho, with average temperature varying between 75°F (23.9°C) and 41.4°F (5.2°C). In September, the average high-temperature decreases, from 85.8°F (29.9°C) in August, to a still moderately hot 75°F (23.9°C). Weather in September »

October, like September, in Idaho Falls, Idaho, is another enjoyable autumn month, with average temperature ranging between min 32.2°F (0.1°C) and max 61.3°F (16.3°C). In Idaho Falls, the average high-temperature in October decreases, from a warm 75°F (23.9°C) in September, to an enjoyable 61.3°F (16.3°C). Weather in October »

The last month of the autumn, November, is another chilly month in Idaho Falls, Idaho, with temperature in the range of an average high of 43°F (6.1°C) and an average low of 23.2°F (-4.9°C). In Idaho Falls, the average high-temperature significantly decreases, from an enjoyable 61.3°F (16.3°C) in October, to a chilly 43°F (6.1°C). Weather in November »

December, the first month of the winter, in Idaho Falls, is still a freezing cold month, with temperature in the range of an average low of 13.5°F (-10.3°C) and an average high of 31.3°F (-0.4°C). In Idaho Falls, the average high-temperature decreases, from a chilly 43°F (6.1°C) in November, to a subzero cold 31.3°F (-0.4°C). Weather in December »

What is the coldest month in Idaho Falls?

With an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 12.6°F (-10.8°C), January is the coldest month in Idaho Falls.

How many days does it rain in Idaho Falls?

In Idaho Falls, during the entire year, the rain falls for 100 days and collects up to 14.2" (361.1mm) of precipitation.

What is the month with the least sunshine in Idaho Falls?

January, November and December, with an average of 4h of sunshine, are months with the least sunshine in Idaho Falls, Idaho.

What is the month with the lowest UV index in Idaho Falls?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Idaho Falls.

What is the wettest month in Idaho Falls?

May is the month with the most rainfall. Rain falls for 10 days and accumulates 2" (51.1mm) of precipitation.

When are the longest days in Idaho Falls?

With an average of 15.4h of daylight, June has the longest days of the year in Idaho Falls.

What is the warmest month in Idaho Falls?

July is the warmest month in Idaho Falls, with an average high-temperature of 86°F (30°C) and an average low-temperature of 51.4°F (10.8°C).

What is the driest month in Idaho Falls?

July is the month with the least rainfall in Idaho Falls. Rain falls for 5 days and accumulates 0.7" (18.8mm) of precipitation.

What month has the most sunshine in Idaho Falls?

With an average of 12h of sunshine, July has the most sunshine of the year.

What is the month with the highest UV index in Idaho Falls?

The month with the highest UV index is July, with an average maximum UV index of 10.

What is the month with the shortest days in Idaho Falls?

With an average of 9h of daylight, December has the shortest days of the year in Idaho Falls.
Average temperature - Idaho Falls, ID
Average rainfall - Idaho Falls, ID
Average rainfall days - Idaho Falls, ID

Months with the highest number of rainy days are January and December (11 days).
Months with the lowest number of rainy days are July and October (5 days).

Average daylight / Average sunshine - Idaho Falls, ID