Climate and monthly weather forecastWinterset, IA

Climate and monthly weather forecast
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 »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure
Winterset, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Winterset, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7mph - Average wind speed in September:
8.1mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
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).
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%).
Average rainfall
Winterset, IA
- Average rainfall in January:
0.91" - Average rainfall in February:
1.06" - Average rainfall in March:
1.77" - Average rainfall in April:
2.76" - Average rainfall in May:
3.98" - Average rainfall in June:
3.78"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days
Winterset, IA
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
17.9 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
7.4 days - Average rainfall days in December:
5.9 days
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).
Average snowfall
Winterset, IA
- Average snowfall in January:
4.29" - Average snowfall in February:
4.53" - Average snowfall in March:
1.97" - Average snowfall in April:
0.91" - Average snowfall in May:
0.35" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Winterset, IA
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
5 days - Average snowfall days in April:
1.7 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
2.7 days - Average snowfall days in December:
7.5 days
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).
Average daylight / Average sunshine
Winterset, IA
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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).
- Average sunshine in January:
4h and 24min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 48min
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).
Average sunshine days
Winterset, IA
- Average sunshine days in January:
19.1 days - Average sunshine days in February:
16.7 days - Average sunshine days in March:
15.7 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
11 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
18.6 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (9.8 days).
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).
Average cloud cover
Winterset, IA
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and September (Cloud cover 29).
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).





