Climate and monthly weather forecast
La Crosse, WI

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A scenic shot from above of La Crosse City in Wisconsin, with the view of the iconic Mississippi River and bridge
A scenic shot from above of La Crosse City in Wisconsin, with the view of the iconic Mississippi River and bridge

The climate of La Crosse

Situated in the midwestern region of the United States, La Crosse, Wisconsin, falls under the Köppen climate classification Dfa, signifying a humid continental climate with no dry season and hot summers. The geographical position of La Crosse bestows upon it a substantial variation in seasonal weather patterns.

Aside from the distinct seasonal changes, La Crosse witnesses notable fluctuations in most weather parameters throughout the year. One of the more evident modifications is the swing in temperature values from a low of 8.2°F (-13.2°C) in winter months to a toasty high of 79.3°F (26.3°C) during the summer. Humidity levels tend to remain relatively high throughout the year with minute drop-off, ranging from 76% in autumn to 90% in the colder months.

Precipitation in La Crosse takes various forms and volumes over the year. It ranges from light snowfall in winter months hitting a peak of 4.72" (120mm) in January to substantial rainfall in summer, peaking in June with 4.61" (117mm). Sunshine duration alters notably with the shift in seasons, from lows of 3.3 hours per day in winter to an ample 9.7 hours in the height of summer.

The best time to visit La Crosse

Taking into account the climate dynamics and variability, the ideal time to visit La Crosse falls between May and September. In these months, the weather maximizes comfort level with average high temperatures fluctuating between 65.3°F (18.5°C) and 79.3°F (26.3°C), coupled with significant sunshine hours, ranging from 8.3 to 9.7 hours per day. Despite being the wettest phase with rainfall topping at 4.61" (117mm), the warm temperatures and plentiful sunshine make for enjoyable outdoor activities and sightseeing, without the surroundings being marred by heavy snowfall.

The worst time to visit La Crosse

Considering weather hardships, the least favorable period to plan a visit to La Crosse is between January and February. These months bring with them severe cold wave with average low temperatures dipping to 8.2°F (-13.2°C), coupled with considerable snowfall levels of up to 4.72" (120mm). The short daylight hours, as low as 9.4 hours in January, and decreased sunshine duration down to 3.3 hours makes the overall atmosphere cold and dark, deterring outdoor exploration and activities.

Spring weather in La Crosse

Spring in La Crosse, from March to May, heralds the arrival of longer daylight hours, from 12 hours to 14.8 hours, and the departure of the winter chill. Temperatures start to rise from 25.9°F (-3.4°C) and 53.2°F (11.8°C), making the atmosphere increasingly congenial. Rainfall commences to overshoot the snowfall, seeing a surge from 1.46" (37mm) to 3.43" (87mm). Although spring is relatively wet with rains pouring over half of the month, the season offers a beautiful window to visit before the peak summer heat.

Summer weather in La Crosse

Summer, between June to August, is the time of the year when La Crosse experiences its warmest weather. Average high temperatures oscillate between 74.7°F (23.7°C) and 79.3°F (26.3°C). Rainfall during this season is generally the highest, with June receiving 4.61" (117mm) on average. The longer daylight hours, bearing a peak sunlight of 15.4 hours a day in June, and high UV index make this period desirable for those longing for outdoor summer activities and adventures.

Autumn weather in La Crosse

Fall, extending from September to November, witnesses a drastic drop in temperature from 71.1°F (21.7°C) to 41.9°F (5.5°C). The daylight hours and sunshine duration start to shorten, giving way to earlier nights and latter mornings. This season, however, is somewhat drier than spring and summer, with rainfall dwindling to 2.13" (54mm) per month.

Winter weather in La Crosse

Winter in La Crosse stretches from December to February, characterized by cold temperatures and snowfall. The mercury level fluctuates between a low of 8.2°F (-13.2°C) and a high of 27.5°F (-2.5°C). Snowfall is copious, peaking at 4.72" (120mm) in January. The atmosphere morphs into a stark winter landscape with daylight hours dwindling to as low as 9 hours and sunshine duration receding to the year's lowest of 3.3 hours.

Weather in January

Beginning the year, La Crosse, Wisconsin experiences frosty and snowy conditions in January. The weather is the coldest with the lowest high temperatures of 21.6°F (-5.8°C) and plunging well below the freezing point to lows of 8.2°F (-13.2°C). Weather in January »

Weather in February

The spell of cold weather continues in February in La Crosse, though the temperatures rise slightly compared to January. The thermometer sees a gradual shift towards higher temperatures, although still below freezing, hinting at the future spring transition. Weather in February »

Weather in March

March ushers in a period of transition in the city's weather. The temperatures begin to ascend, lifting from the freezing lows of winter to a more palatable range, indicating the arrival of spring. March is the month with the most significant temperature shift throughout the year. Weather in March »

Weather in April

April provides a noticeable warmth in the air, with temperatures displaying a drastic increase from March. Embracing spring fully, the city's weather becomes more unpredictable with alternating sunny and rainy days. Signaling the end of winter, the snowfall reduces significantly in April, making way for an increase in rainfall with a high of 2.52" (64mm). Weather in April »

Weather in May

The month of May in La Crosse bears the full bloom of spring weather. A pronounced warmth sets in with temperatures rising significantly higher than in previous months. With the increase in temperature comes a surge in humidity levels, thereby increasing chances of rainfall and making May the year's wettest month with 3.43" (87mm) of rain. Weather in May »

Weather in June

Arrival of June marks the beginning of summer in La Crosse, with temperatures starting to peak. June offers the longest days of the year with up to 15.4 hours of daylight, allowing plenty of time for outdoor pursuits. Despite the discomfort, the high humidity plays a role in increasing the rainfall, a departure from the typical dry summer months seen in other regions. Weather in June »

Weather in July

July is typically the warmest month of the year in La Crosse, featuring peak summer temperatures where highs average around 79.3°F (26.3°C). While the increased heat can be intense, it's balanced by slightly reduced rainfall as compared to the spring months. Weather in July »

Weather in August

The heat of summer begins to wane slightly in August, with a small dip in temperature from July highs. However, it remains the second-warmest month with the majority of days experiencing predominantly clear skies. The rainfall also tapers off, replicating the trends of a typical summer month. Weather in August »

Weather in September

September sees a marked decline in temperature, signaling the onset of fall in La Crosse. Although the temperatures remain relatively warm, there's a palpable chill in the air, especially during late evenings and early mornings. Weather in September »

Weather in October

The transition to colder weather becomes more noticeable in October in La Crosse. The cool temperatures become a staple of the weather, thereby reducing the city's average temperature significantly. The first hints of impending winter are felt with the presence of occasional snowfall, despite rainfall being the predominant form of precipitation. Weather in October »

Weather in November

By November, the grip of winter starts to tighten, with temperatures dipping substantially from the previous month. La Crosse experiences cold temperatures, with highs averaging just 41.9°F (5.5°C) and the onset of more frequent snowfall with 1.81" (46mm) accumulating throughout the month. Weather in November »

Weather in December

December in La Crosse sees a full return of winter, characterized by low temperatures and frequent snowfall. The average high of 27.5°F (-2.5°C) and low of 17.1°F (-8.3°C) establishes this month as one of the coldest of the year. Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in La Crosse?

With average high temperatures of 21.6°F (-5.8°C) and lows of 8.2°F (-13.2°C), January is the coldest month.

What is the most humid month in La Crosse?

January is the most humid month in La Crosse, with an average relative humidity of 90%.

What is the driest month in La Crosse?

The month with the least rainfall in La Crosse is January, when the rain falls for 3.4 days and typically collects 0.91" (23mm) of precipitation.

How much does it rain in La Crosse?

In La Crosse, Wisconsin, during the entire year, the rain falls for 129.3 days and collects up to 26.42" (671mm) of precipitation.

When does it snow in La Crosse?

January through May, October through December are months with snowfall.

How much does it snow in La Crosse?

Throughout the year, in La Crosse, Wisconsin, there are 48.3 snowfall days, and 20.2" (513mm) of snow is accumulated.

What is the month with the least sunshine in La Crosse?

January has the least sunshine of the year in La Crosse, with an average of 3.3h of sunshine.

What is the month with the lowest UV index in La Crosse?

The months with the lowest UV index in La Crosse, Wisconsin, are January, February, November and December, with an average maximum UV index of 1.

What is the snowiest month in La Crosse?

The month with the most snowfall in La Crosse is February, when snow falls for 11 days and typically aggregates up to 4.8" (122mm) of snow.

When is Daylight Saving Time (DST) in La Crosse?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in La Crosse, 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 are the months with the highest UV index in La Crosse?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the wettest month in La Crosse?

The month with the most rainfall is June, when the rain falls for 16.8 days and typically aggregates up to 4.61" (117mm) of precipitation.

When it does not snow in La Crosse?

In La Crosse, snow does not fall in June through September.

When are the longest days in La Crosse?

With an average of 15h and 24min of daylight, June has the longest days of the year.

What are the warmest months in La Crosse?

In La Crosse, the average highest temperatures are observed in July, with a high of 79.3°F (26.3°C) and a low of 61°F (16.1°C).

What is the month with the most sunshine in La Crosse?

The months with the most sunshine are July and August, with an average of 9.7h of sunshine.

What is the least humid month in La Crosse?

October is the least humid month, with an average relative humidity of 76%.

What is the month with the shortest days in La Crosse?

The month with the shortest days in La Crosse, Wisconsin, is December, with an average of 9h and 0min of daylight.

Average temperature
La Crosse, WI

Average temperature - La Crosse, WI

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (21.6°F).

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure
La Crosse, WI

Average pressure - La Crosse, WI

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed
La Crosse, WI

Average wind speed - La Crosse, WI

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity
La Crosse, WI

Average humidity - La Crosse, WI

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).

Average rainfall
La Crosse, WI

Average rainfall - La Crosse, WI

The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (0.91").

Average rainfall days
La Crosse, WI

Average rainfall days - La Crosse, WI

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (3.2 days).

Average snowfall
La Crosse, WI

Average snowfall - La Crosse, WI

The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
La Crosse, WI

Average snowfall days - La Crosse, WI

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
La Crosse, WI

Average daylight / Average sunshine - La Crosse, WI

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days
La Crosse, WI

Average sunshine days - La Crosse, WI

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (10.5 days).

Average UV index
La Crosse, WI

Average UV index - La Crosse, WI

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average visibility
La Crosse, WI

Average visibility - La Crosse, WI

The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).

La Crosse, Wisconsin, USA

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