Climate and monthly weather forecast
International Falls, MN

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The Rainy River draining into the Rainy Lake, dense road network, and a townscape of International Falls City in Minnesota
The Rainy River draining into the Rainy Lake, dense road network, and a townscape of International Falls City in Minnesota

The climate of International Falls

International Falls, Minnesota boasts a Dfb Köppen climate classification, recognized primarily for its humid continental climate without a dry season but warm summer. It is nestled far into the Northern Hemisphere in Minnesota, United States.

Weather in International Falls shows a wide range of conditions throughout the year, reflecting its temperate to cold climate. The average monthly temperature ranges from a chilly 13.8°F (-10.1°C) in January to a comfortable 78.6°F (25.9°C) in July. Winter brings severe cold, while in summer, the weather tends to be warm but not overly hot.

Precipitation is evenly distributed throughout the year; though the volume is higher in summer months from May to August resulting in rainfall from 2.09in to 2.32in. Months with minimal rainfall include January and February with 0.91in and 0.94in respectively. Humidity levels show slight fluctuation, remaining highest in winter months, with the peak in January and February at 94% and dropping to the lowest in May at 67%.

Snowfall is a notable feature of the International Falls weather. Maximum snowfall is observed during the winter months from December to February with observed measures from 6.97in in February to 7.95in in December. The number of daylight hours varies significantly, from a brief 8.8 hours in December to a generous 16.1 hours in June.

The Best Time to Visit International Falls

The optimal time for visiting International Falls tends to be from June to September. During these months, the weather is congenially warm, with average temperatures soaring to the high 60s in°F and maintaining moderately low relative humidity. The increased hours of daylight, reaching up to 16.1 hours in June, provide ample opportunity for outdoor activities. The uv index marks a high of 6 in July, suggesting a need for sun protection during outdoor adventures.

The Worst Time to Visit International Falls

The months of December to February represent the most challenging weather conditions in International Falls. Extremely low temperatures, hovering between 13.8°F (-10.1°C) to 18.5°F (-7.5°C), combined with maximum snowfall from 6.97in to 7.95in and lowest daylight hours make these months less desirable for outdoor activities or tourism.

Spring Weather in International Falls

The transition into Spring is marked by a steady escalation in temperatures in International Falls. The average highs in March, April, and May range from 32.5°F (0.3°C), 46°F (7.8°C), to 62.4°F (16.9°C) respectively. Humidity levels begin descending this season, decreasing from 89% in March to 67% by May. A steady increase in daylight hours coupled with dwindling snowfall, makes spring a pleasant and welcoming season.

Summer Weather in International Falls

Summers in International Falls are typically warm and comfortable. The average highs hover around the 70s in°F between June and August. Relative humidity mildly oscillates in these months, but generally remains around 70%. The most prolonged daylight hours of the year are in June with 16.1 hours. Meanwhile, summer displays the highest level of sunshine seen throughout the year, peaking at 10.1 hours in July.

Autumn Weather in International Falls

Autumn showcases a gradual cooling down of temperatures, dropping from 65.8°F (18.8°C) in September to 33.3°F (0.7°C) in November. There is a noted increase in rainfall from 1.81in in September to 1.89in in October. Simultaneously, as the fall progresses, daylight hours diminish from 12.6 hours to 9.2 hours.

Winter Weather in International Falls

Winter in International Falls is marked by low temperatures, abundant snowfall, and limited daylight. During December to February, the average temperatures range between 13.8°F (-10.1°C) to 18.5°F (-7.5°C). Snowfall is significant this season, with the highest measure being 7.95in in December. The daylight hours are the shortest in a year, diminishing to 8.4 hours in December. Even with the frigid external conditions, the relative humidity remains relatively high, approaching 94% in January.

Weather in January

The new year begins in International Falls with a steady hum of frigid temperatures, characteristic for Minnesota winters. The thermometer dips well below freezing, reaching temperature lows nearing -0.6°F (-18.1°C) and highs only around 13.8°F (-10.1°C). Weather in January »

Weather in February

In February, the intensely cold conditions persist. Despite the slight rise in temperature, February remains noticeably colder than March. A glance at the weather charts reveals a decrease in snowfall in relation to January. However, those fond of winter sports will still find the city enveloped in snow. Weather in February »

Weather in March

March, the first month of the spring in International Falls, is an icy month, with an average temperature fluctuating between 32.5°F (0.3°C) and 17.8°F (-7.9°C). International Falls experiences a noticeable temperature shift with the start of March, with average high-temperatures moving from a freezing cold 17.6°F (-8°C) in February to an icy 32.5°F (0.3°C). Weather in March »

Weather in April

By the time April rolls around, International Falls starts to shake off its wintry coat. April weather shows a marked improvement, notably warmer than March but not as warm as May. The city is treated to an increased amount of rainfall, preparing the ground for the greening of landscapes. Weather in April »

Weather in May

In May, the weather warms appreciably, paving the way for a more mild climate. The temperatures during this time are a far cry from the bitterly cold winter months and not as hot as June's peak summer weather. As the winter snow completely melts away, May sees the highest rainfall, with an approximate measure of 2.32" (59mm). Weather in May »

Weather in June

June marks the arrival of summer in International Falls, bringing relatively higher temperatures. Despite the heat, June presents less extreme conditions than the forthcoming July. Residents experience longer daylight hours, making it a popular month for sightseeing and visiting local landmarks. Weather in June »

Weather in July

The heat reaches its zenith in July, with the city experiencing the warmest temperatures of the year. The peak temperature is considerably higher than in June or August, at around 78.6°F (25.9°C). With heat at its highest, rainfall shows a subtle decrease as compared to the relatively wetter June. Weather in July »

Weather in August

In August, the weather starts to evolve again in International Falls. Despite the heat loosening its grip slightly, August remains warmer than September. August marks the renewal of cooler evenings as the days gradually start to become shorter. Weather in August »

Weather in September

September ushers in the much-awaited fall season in International Falls. The city experiences a notable transition in its weather, being cooler than August and becoming even cooler in October. The lush landscapes of Minnesota begin to display a riot of fall colors, inviting nature-lovers to take a stroll. Weather in September »

Weather in October

October paints International Falls in autumn hues, transforming landscapes to brilliant shades of orange and gold. Even though the days become cooler compared to September, October is relatively less chilling than November. As fall deepens, the city continues its descent towards a drier climate, even as the snow starts to reappear towards the month's end. Weather in October »

Weather in November

November brings back the chill in the air as winter starts setting in over International Falls. The month is considerably cooler than October and gets even colder in December. November introduces heavier jackets to ward off the coldness. Weather in November »

Weather in December

By December, the winter in International Falls is in full swing, with the city transformed into a winter landscape. Colder than November, December continues to bring down the average temperatures, reaching near freezing point. Weather in December »

Frequently asked questions

What is the coldest month?

In International Falls, the average lowest temperatures are observed in January, with a high of 13.8°F (-10.1°C) and a low of -0.6°F (-18.1°C).

What are the most humid months?

The months with the highest humidity are January and February, with an average relative humidity of 94%.

How many days does it rain?

Throughout the year, there are 110.5 rainfall days, and 19.29" (490mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall in International Falls.

How many days does it snow?

Throughout the year, there are 117.9 snowfall days, and 44.33" (1126mm) of snow is accumulated.

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

January has the least sunshine of the year in International Falls, with an average of 1.5h of sunshine.

When is the lowest UV index?

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 1.

What is the driest month?

February is the month with the least rainfall. Rain falls for 1.3 days and accumulates 0.91" (23mm) of precipitation.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in International Falls, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the least humid month?

With an average relative humidity of 67%, May is the least humid month.

What is the wettest month?

June is the month with the most rainfall. Rain falls for 15.7 days and accumulates 2.32" (59mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

With an average of 16h and 6min of daylight, June has the longest days of the year.

What is the warmest month?

International Falls's July weather, marked by an average high temperature of 78.6°F (25.9°C) and an average low temperature of 56.8°F (13.8°C), is the warmest in the year.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.1h of sunshine.

What is the month with the highest UV index?

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 21.5 days and accumulates 7.95" (202mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year in International Falls, with an average of 8h and 24min of daylight.

Average temperature
International Falls, MN

Average temperature - International Falls, MN

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (13.8°F).

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (-0.6°F).

Average pressure
International Falls, MN

Average pressure - International Falls, MN

The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed
International Falls, MN

Average wind speed - International Falls, MN

The windiest month (with the highest average wind speed) is October (7.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity
International Falls, MN

Average humidity - International Falls, MN

The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is May (67%).

Average rainfall
International Falls, MN

Average rainfall - International Falls, MN

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is February (0.91").

Average rainfall days
International Falls, MN

Average rainfall days - International Falls, MN

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (1.3 days).

Average snowfall
International Falls, MN

Average snowfall - International Falls, MN

The month with the highest snowfall is December (7.95").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
International Falls, MN

Average snowfall days - International Falls, MN

The month with the highest number of snowfall days is January (23.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
International Falls, MN

Average daylight / Average sunshine - International Falls, MN

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).

Average sunshine days
International Falls, MN

Average sunshine days - International Falls, MN

The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is January (8.3 days).

Average UV index
International Falls, MN

Average UV index - International Falls, MN

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

Average visibility
International Falls, MN

Average visibility - International Falls, MN

The months with the highest visibility are May, June, July and August (6mi).
The months with the lowest visibility are January and February (3mi).

International Falls, Minnesota, USA

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