Climate and monthly weather forecast
Bettendorf, IA

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Modern homes in an estate in Bettendorf, Iowa, set in a luxurious and serene environment overlooking the calm sea out front
Modern homes in an estate in Bettendorf, Iowa, set in a luxurious and serene environment overlooking the calm sea out front

The climate of Bettendorf

In the heart of the Midwest, Bettendorf, Iowa, presents a vibrant climate deeply rooted in its geographical position, delineated by the Humid-continental, no dry season, hot summer per Köppen climate classification - coded Dfa. This classification underlines the prominence of four distinctive seasons, each having a unique weather pattern.

The annual temperature regime fluctuates widely, with an average high temperature ranging from 28°F (-2.2°C) in January to 81.7°F (27.6°C) in July, and an average low, swaying between 15.6°F (-9.1°C), in winter months, up to 64.9°F (18.3°C) during the summer. Summers in Bettendorf bring high humidity, peaking at 83% in January and July, and a substantial rainfall count with the highest precipitation observed in May at 4.49" (114mm).

Throughout the year, rainfall varies, with Bettendorf experiencing an annual range from 1.26" (32mm) in December to a peak of 4.49" (114mm) in May. Consequently, this weather pattern affects the number of rainfall days, which increases from 4.3 days in January to a maximum of 17.5 days in May. Similarly, the frequency of snowy days oscillates from zero in summer to 10.9 times in the winter month of January, with resulting snowfall amounts extending from zero to 3.98" (101mm).

The wind speed in Bettendorf changes depending on the season, reaching the fastest pace of 10.6mph (17.1km/h) in April while slowing down to the yearly lowest of 6.7mph (10.8km/h) in August. Wind gusts also vary seasonally, with the highest peaks seen in January and November at 16.5mph (26.6km/h).

The best time to visit Bettendorf

Given the city's rich cultural and outdoor activities, the timing of a visit to Bettendorf could be optimized depending on the type of weather sought by visitors. The best time weather-wise might be between late spring and early fall, when temperatures are typically warmer and rainfall isn't as frequent. During this period, daytime temperatures stay comfortably within the range of 70.3°F (21.3°C) to 80.8°F (27.1°C) from May to September, and the humidity slightly less oppressive, ranging from 77% to 79%.

The worst time to visit Bettendorf

Tourists may want to avoid visiting Bettendorf during the colder months. Primarily, January stands out as the coldest month, registering the lowest average temperature of 28°F (-2.2°C), and the highest average relative humidity at 83%. Additionally, this period experiences a higher frequency of snowfall days, reaching an average of 10.9 days with an accumulation of 3.98" (101mm) of snow.

Spring weather in Bettendorf

Spring months in Bettendorf are marked by rising temperatures and increased rainfall. From March to May, average high temperatures scale from 46.8°F (8.2°C) to 70.3°F (21.3°C), with lows mounting from 32°F (0°C) to 53.2°F (11.8°C). During this period, the average number of rainfall days expands from 11 to 17.5 per month, and the rainfall volume grows from 1.85" (47mm) to 4.49" (114mm), making May the wettest month.

Summer weather in Bettendorf

Summer in Bettendorf is generally warm and humid, with temperatures reaching their peak in July at an average high of 81.7°F (27.6°C) and a low of 64.9°F (18.3°C). The number of rainfall days is fairly stable, hovering between 15.3 and 16.6 days. Rainfall volume decreases after its peak in May, with amounts varying from 2.8" (71mm) to 3.39" (86mm) consistently throughout the summer months.

Autumn weather in Bettendorf

Autumn in Bettendorf sees a decrease in temperature, with November having an average high of 46.8°F (8.2°C) and an average low of 33.3°F (0.7°C). Rainfall days also reduce, starting from 11.5 in September down to 8.6 in November, while rainfall volume oscillates between 1.77" (45mm) and 2.4" (61mm).

Winter weather in Bettendorf

The winter in Bettendorf ushers in cold conditions, January being the coldest month, reporting an average high temperature of 28°F (-2.2°C) and a low of 15.6°F (-9.1°C). Snowfall becomes a significant factor now, particularly in January, which witnesses an average of 10.9 snowfall days leading to an accumulation of 3.98" (101mm) of snow.

Weather in January

Being the coldest month in Bettendorf, Iowa, January introduces the new year with chill, daily high temperatures hovering at 28°F (-2.2°C) and the lows at around 15.6°F (-9.1°C). Due to this, this month is characterized by heavy woolen garments, frosty breaths, and huddles around heat sources. Weather in January »

Weather in February

February is slightly milder, with temperatures rising to about 32.7°F (0.4°C) but still clinging to its wintry demeanor. The snow from the previous month starts to recede, with the snowfall days halved compared to January. It is also observed that the cloud cover reduces, allowing more sunlight to filter through during the day. Weather in February »

Weather in March

Moving towards spring, the weather pattern in March in Bettendorf exhibits more significant changes. The highest temperature takes a jump to 46.8°F (8.2°C), and snowfall reduces to about 1.73 in. Much of the snow starts to melt away, and the gray world starts to regain its color. Weather in March »

Weather in April

April marks the onset of spring in full swing in Bettendorf, Iowa. The temperatures hover around 59°F (15°C), and the city observes the highest rainfall in the year, amounting to roughly 3.03 in. Consequently, the city sees a flourish of spring blooms, making the cityscape a delightful sight to behold. Weather in April »

Weather in May

As May settles in, we can see a clear shift from the cool weather to milder, more enjoyable temperatures around 70.3°F (21.3°C). Rainfall is at its annual peak this month, with an average accumulation of approximately 4.49 in, leading to lush green expanses and blooming flower beds. Weather in May »

Weather in June

In June, Bettendorf embraces the warmth of the summer season, as temperatures reach a comfortable peak of 79°F (26.1°C). The increasing warmth also means heightened humidity levels that could make the hot days feel hotter. Despite the rainfall decreasing from the previous month to about 3.39 in, the city continues to remain bright and sun-kissed throughout. Weather in June »

Weather in July

July brings the heat in Bettendorf, Iowa, with the highest temperatures shooting to around 81.7°F (27.6°C). The summer provides bountiful sunlight, with sunshine hours spanning an average of 10.2 hours per day. Despite the temperatures, rain provides a refreshing break from the heat, with rainfall days averaging around 15.3 days. Weather in July »

Weather in August

August experiences similar weather to July, with temperatures averaging out at around 80.8°F (27.1°C). The daylight hours start to decrease slowly as the summer begins to wane. However, the decrease does not significantly affect the amount of sunlight Bettendorf gets. Weather in August »

Weather in September

As September rolls around in Bettendorf, noticeable changes in the weather become apparent. The temperatures drop to around 75.4°F (24.1°C), and shadows start falling earlier. The diminishing sunlight hours make for the appearance of beautiful sunsets, painting the Iowa sky with hues of red, orange, and pink. Weather in September »

Weather in October

October can clearly be marked as the start of the fall season in Bettendorf, with temperatures dropping significantly to about 61.3°F (16.3°C). The number of rainfall days reduces to around 12 days per month. The city finds itself preparing for the colder months, shedding its summer vivacity. Weather in October »

Weather in November

November is when the chill begins to set in again in Bettendorf, with temperatures falling to around 46.8°F (8.2°C). The weather cooperates with the holiday season's mellow mood, creating a classic November feel. Drops in rainfall and a decrease in sunshine hours further amplify this ambiance. Weather in November »

Weather in December

Bettendorf, Iowa, welcomes December with temperatures around 34.3°F (1.3°C), marking the onset of the winter season. A marked increase in snowfall with a recorded 1.89 in confirms the arrival of winter. The increasing chill can be felt in the air, heralding the approach of Christmas. Weather in December »
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Frequently asked questions

What part of the year is the coldest in Bettendorf?

January, known for its average high temperature of 28°F (-2.2°C) and an average low temperature of 15.6°F (-9.1°C), is the coldest month in Bettendorf, Iowa.

What are the most humid months in Bettendorf?

January and July, with an average relative humidity of 83%, are most humid months in Bettendorf, Iowa.

How much does it rain in Bettendorf?

In Bettendorf, Iowa, during the entire year, the rain falls for 138.1 days and collects up to 27.32" (694mm) of precipitation.

When does it snow in Bettendorf?

January through April, October through December are months with snowfall in Bettendorf, Iowa.

When does it snow the most in Bettendorf?

January is the month with the most snowfall in Bettendorf, Iowa. Snow falls for 10.9 days and accumulates 3.98" (101mm) of snow.

How many days does it snow in Bettendorf?

In Bettendorf, Iowa, during the entire year, snow falls for 35.5 days and aggregates up to 12.8" (325mm) of snow.

What is the month with the least sunshine in Bettendorf?

January has the least sunshine of the year in Bettendorf, with an average of 3.9h of sunshine.

What is the month with the lowest UV index in Bettendorf?

The month with the lowest UV index is January, with an average maximum UV index of 1.

What is the driest month in Bettendorf?

The month with the least rainfall in Bettendorf, Iowa, is February, when the rain falls for 4.8 days and typically collects 1.1" (28mm) of precipitation.

When is Daylight Saving Time (DST) in Bettendorf?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Bettendorf, 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 rainiest month in Bettendorf?

The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 4.49" (114mm) of precipitation.

When it does not snow in Bettendorf?

May through September are months without snowfall in Bettendorf.

When are the longest days in Bettendorf?

The month with the longest days in Bettendorf, Iowa, is June, with an average of 15h and 6min of daylight.

What are the warmest months in Bettendorf?

In Bettendorf, July is the month with the highest recorded average temperatures, measuring a high of 81.7°F (27.6°C) and a low of 64.9°F (18.3°C).

What month has the most sunshine in Bettendorf?

With an average of 10.2h of sunshine, July has the most sunshine of the year.

What is the month with the highest UV index in Bettendorf?

The months with the highest UV index in Bettendorf, Iowa, are July and August, with an average maximum UV index of 6.

What is the least humid month in Bettendorf?

October is the least humid month in Bettendorf, with an average relative humidity of 71%.

What is the month with the shortest days in Bettendorf?

December has the shortest days of the year in Bettendorf, with an average of 9h and 12min of daylight.

Average pressure
Bettendorf, IA

Average pressure - Bettendorf, IA

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed
Bettendorf, IA

Average wind speed - Bettendorf, IA

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

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Average humidity
Bettendorf, IA

Average humidity - Bettendorf, IA

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall
Bettendorf, IA

Average rainfall - Bettendorf, IA

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is February (1.1").

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Average rainfall days
Bettendorf, IA

Average rainfall days - Bettendorf, IA

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall
Bettendorf, IA

Average snowfall - Bettendorf, IA

The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Bettendorf, IA

Average snowfall days - Bettendorf, IA

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Bettendorf, IA

Average daylight / Average sunshine - Bettendorf, IA

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days
Bettendorf, IA

Average sunshine days - Bettendorf, IA

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.4 days).

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Average visibility
Bettendorf, IA

Average visibility - Bettendorf, IA

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Bettendorf, Iowa, USA

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