Climate and monthly weather forecast
Winterset, IA

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A historic Hogback Covered Bridge in Winterset in Madison County, within Iowa
A historic Hogback Covered Bridge in Winterset in Madison County, within Iowa

The climate of Winterset

Winterset experiences a humid continental climate, marked by no dry season and hot summers, according to the Köppen climate classification. Geographically nestled in the state of Iowa, USA, the city grapples with significant variations in weather patterns throughout the year.

Upon sifting through the climate data, a crucial observation reveals a fluctuation in temperatures. The citizens of Winterset experience warmer weather from May to September with temperatures soaring between 69.4°F (20.8°C) and 83.3°F (28.5°C). In contrast, a distinct plummet in the mercury levels is noticed from October to April, presenting a cooler climate with temperatures ranging from 28.8°F (-1.8°C) to 59.7°F (15.4°C).

Rainfall in Winterset follows a typical pattern with the maximum precipitation occurring between April and August, measuring from 2.76" (70mm) to 3.98" (101mm). Outside these wet months, rainfall tends to be on the lower side. However, snowfall is encountered primarily during the colder months, from November to March with the maximum snowfall of 4.53" (115mm) occurring in February.

The city experiences considerable daylight hours throughout the year, hovering between 9.6 and 15.1 daylight hours per month; a radiant sunshine period that varies from 4.4 hours to 10.3 hours further adds to the variation in climate. Wind speed in Winterset tends to be quite consistent year-round, with maximum speeds of 16.9mph (27.2km/h) during the colder months but mostly remaining below 11.5mph (18.5km/h).

The best time to visit Winterset

Drawing from the climate data, the advisable time to visit Winterset would be between May and September. These months promise warmer weather with high temperatures settling between 69.4°F (20.8°C) and 83.3°F (28.5°C) coupled with the highest levels of sunshine ranging from 8.6 to 10.3 hours per day. Although rainfall is relatively high, the pleasant temperature and abundant sunlight make it an enticing period for visitors to explore Winterset’s attractions.

The worst time to visit Winterset

Months from November to March constitute the least favorable period to visit Winterset. During this time, tourists may find the bitterly cold temperatures with lows dropping to 15.3°F (-9.3°C), less appealing. December seems to be the coldest with a low temperature of 15.3°F (-9.3°C). In addition to this, the city encounters significant snowfall in this period, making travel and outdoor activities potentially challenging.

Spring weather in Winterset

Spring in Winterset from March to May reflects a gradual rise in temperature from 47.8°F (8.8°C) to 69.4°F (20.8°C). A rapid increase in rainfall transitioning from 1.77" (45mm) to 3.98" (101mm) can also be tracked during this season. Daylight hours extend significantly from 11.1 hours to 15.1 hours across these months. Hence, while early spring poses cooler temperatures and modest rainfall, late spring brings warmer weather and increased precipitation.

Summer weather in Winterset

Summer spans from June to August in Winterset, presenting citizens with the warmest temperatures of the year, between 79.7°F (26.5°C) to 83.3°F (28.5°C). Despite the relatively high rainfall during this season, Winterset enjoys the maximum daylight throughout the year, with an average of 14.5 hours to 15.1 hours per day.

Autumn weather in Winterset

Autumn temperatures in Winterset from September to November decline from 75.4°F (24.1°C) to 47.3°F (8.5°C). Correspondingly, the city sees a reduction in rainfall from 2.44" (62mm) to 1.26" (32mm), and the daylight hours start decreasing from 11.1 hours to 9.9 hours. This season typically marks the transition from the warm summer weather to the colder winter climate.

Winter weather in Winterset

Winter in Winterset, lasting from December till February, is characterized by the coldest temperatures of the year, ranging from 15.3°F (-9.3°C) to 32.5°F (0.3°C). Snowfall is most frequent and intense during these months, with maximal snowfall of 4.5" (114mm) in February. Despite the cold and snowy conditions, Winterset continues to receive an average of 9 hours of daylight during this season.

Weather in January

Winterset, Iowa greets the new year with a chilly embrace, as winter deepens. The average low temperature in January dips to 15.3°F (-9.3°C), while the high hovers around 28.8°F (-1.8°C). The city witnesses longer nights, a high relative humidity of 82%, and increased snowfall, enhancing the beauty of its icy landscape. Weather in January »

Weather in February

As the calendar flips to February, Winterset experiences a slight uptick in temperatures, marking the first hint of spring on the horizon. Temperatures range between 18.3°F (-7.6°C) and a maximum of 32.5°F (0.3°C). February's weather continues to be dominated by wintry conditions, similar to January, with frequent snowfall and relative humidity level of 82%. Weather in February »

Weather in March

March brings a palpable change in Winterset's weather as clear signs of spring start to emerge. Compared to February, increased daylight hours grace the city, complemented by an average high temperature of 47.8°F (8.8°C) and a low of 32.5°F (0.3°C). Weather in March »

Weather in April

The heart of spring sets foot in Winterset during April, leading to a significant hike in temperature, from 42.3°F (5.7°C) to a pleasant 59.7°F (15.4°C). Simultaneously, rainfall sees an uptick, reaching a whopping 2.76" (70mm). Weather in April »

Weather in May

May showcases quintessential spring weather in Winterset, marked by warmer temperatures, vibrant greenery, and blooming flowers. As the monthly high temperature climbs to 69.4°F (20.8°C) from the lower end of 52.7°F (11.5°C), May becomes the wettest month of Winterset with rainfall amounting to 3.98" (101mm). Weather in May »

Weather in June

June in Winterset heralds the beginning of summer with its warm sunny days and pleasant evenings. The city basks under an average temperature that flits between 63°F (17.2°C) and 79.7°F (26.5°C), marking a perceptible change from May's weather. Weather in June »

Weather in July

Heat peaks in Winterset during July, making it the hottest month with temperatures swaying from 65.1°F (18.4°C) to an average high of 83.3°F (28.5°C). The sun dominates the landscape, ensuring bright daytime and unforgettable colorful sunsets. Weather in July »

Weather in August

August presents itself as a second helping of July’s weather with temperatures fluctuating between 62.6°F (17°C) and 81.5°F (27.5°C). A slight increase in rainfall up to 2.6" (66mm) is observed, though the city continues to bask in the glory of lengthy daylight hours. Weather in August »

Weather in September

September announces the arrival of fall in Winterset as the summer's warmth begins to ebb. Temperatures range from 55.9°F (13.3°C) to 75.4°F (24.1°C), replacing the summer heat with cooler, more relieving weather. Rainfall preserves its trend from August, with little change experienced. Weather in September »

Weather in October

October in Winterset witnesses a clear shift towards colder weather as fall deepens and winter approaches. A sharp decrease in temperatures from a high of 60.8°F (16°C) to lows of 44.2°F (6.8°C) sets the tone for the coming months. Weather in October »

Weather in November

November in Winterset signals the serious onset of winter with temperatures dropping from 47.3°F (8.5°C) to overnight lows of 32.7°F (0.4°C). As the rainfall dips to 1.26" (32mm), the likelihood of snowfall marginally increases over October, adding a hint of early winter charm. Weather in November »

Weather in December

December marks the return of winter's reign in Winterset, Iowa, with temperatures scaling down from 34.3°F (1.3°C) to as low as 22.5°F (-5.3°C). An increase in snowfall marks the beginning of the festive season, with rainfall leveling down to 1.1" (28mm). Weather in December »
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Frequently asked questions

What are the coldest months in Winterset?

The coldest temperatures in Winterset occur during January, when averages reach a peak of 28.8°F (-1.8°C) and a low of 15.3°F (-9.3°C).

What are the most humid months in Winterset?

The months with the highest humidity in Winterset are January, February and June, with an average relative humidity of 82%.

What is the driest month in Winterset?

The month with the least rainfall is January, when the rain falls for 3.8 days and typically collects 0.91" (23mm) of precipitation.

How many days does it rain in Winterset?

In Winterset, during the entire year, the rain falls for 133 days and collects up to 26.14" (664mm) of precipitation.

When does it snow in Winterset?

Months with snowfall in Winterset are January through May, October through December.

How much does it snow in Winterset?

Throughout the year, in Winterset, there are 35 snowfall days, and 15.04" (382mm) of snow is accumulated.

What is the month with the least sunshine in Winterset?

The month with the least sunshine in Winterset, Iowa, is January, with an average of 4.4h of sunshine.

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

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Winterset.

What is the snowiest month in Winterset?

February is the month with the most snowfall in Winterset, Iowa. Snow falls for 8.3 days and accumulates 4.53" (115mm) of snow.

When is Daylight Saving Time (DST) in Winterset?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 Winterset?

May is the month with the most rainfall in Winterset. Rain falls for 17.5 days and accumulates 3.98" (101mm) of precipitation.

When it does not snow in Winterset?

In Winterset, snow does not fall in June through September.

When are the longest days in Winterset?

With an average of 15h and 6min of daylight, June has the longest days of the year in Winterset, Iowa.

What are the months with the highest UV index in Winterset?

The months with the highest UV index in Winterset, Iowa, are June through August, with an average maximum UV index of 6.

What is the warmest month in Winterset?

Winterset's warmest month, July, registers temperatures that range from a high of 83.3°F (28.5°C) to a low of 65.1°F (18.4°C).

What month has the most sunshine in Winterset?

The month with the most sunshine in Winterset, Iowa, is July, with an average of 10.3h of sunshine.

What is the least humid month in Winterset?

The least humid month in Winterset, Iowa, is October, with an average relative humidity of 71%.

What is the month with the shortest days in Winterset?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

Average temperature
Winterset, IA

Average temperature - Winterset, IA

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (28.8°F).

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

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Average pressure
Winterset, IA

Average pressure - Winterset, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed
Winterset, IA

Average wind speed - Winterset, IA

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity
Winterset, IA

Average humidity - Winterset, IA

The months with the highest relative humidity are January, February and June (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall
Winterset, IA

Average rainfall - Winterset, IA

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.91").

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Average rainfall days
Winterset, IA

Average rainfall days - Winterset, IA

The month with the highest number of rainy days is June (17.9 days).
The months with the least rainy days are January and February (3.8 days).

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Average snowfall
Winterset, IA

Average snowfall - Winterset, IA

The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Winterset, IA

Average snowfall days - Winterset, IA

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Winterset, IA

Average daylight / Average sunshine - Winterset, 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 18min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days
Winterset, IA

Average sunshine days - Winterset, IA

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (9.8 days).

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Average UV index
Winterset, IA

Average UV index - Winterset, IA

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average visibility
Winterset, IA

Average visibility - Winterset, IA

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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Winterset, Iowa, USA

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