Climate and monthly weather forecastVinton, IA
Climate and monthly weather forecast
The climate of Vinton
Providing a comprehensive understanding of the weather conditions experienced in Vinton, Iowa, USA requires a deep analysis of the climatological data provided. Situated within the Koppen climate classification Dfa, this location experiences the characteristically humid continental climate, without a dry season and with hot summers. This classification and geographical position usually equate to stark variations in temperature throughout the year, coupled with consistent humidity levels.Throughout Vinton, most of the year undergoes significant changes in temperature, from the heart of winter when lows can fall to 13.1°F (-10.5°C), to the peak of summer with highs reaching up to 80.1°F (26.7°C). These temperature fluctuations are accompanied by an average relative humidity ranging from 72% to 86% during the year, indicating a generally moist atmosphere. Rainfall, meanwhile, shows a pattern of variation throughout the year, with the highest precipitation occurring from April till July, peaking at 1.85" (47mm) in May. The driest month is February with 0.39" (10mm) of rainfall.
Noticeably, the second half of the year tends to have the sunniest conditions, with sunshine hours ranging from 9.6 hours in June to 10 hours in July. Conversely, shortest daylight hours are observed in December at 9.2 hours per day.
Wind velocity tends to be regular throughout the year, averaging around 10.5mph (16.9km/h), peaking at 10.8mph (17.4km/h) in April and at its lowest, 7mph (11.3km/h), in both July and August. On extreme days, gusts can reach up to 16.8mph (27km/h), notably intense in January.
The best time to visit Vinton
Given its continental climate, the most comfortable time to visit Vinton would arguably be in late spring to early summer, between May and June. During this period, average temperatures range from 57.4°F (14.1°C) to 77.7°F (25.4°C), totaling among the most moderate and enjoyable weather conditions of the year. Coupled with pleasant temperatures, these months present close to the highest amount of sunshine at 8.5 hours to 9.6 hours per day. Rainfall hovers around 1.85" (47mm) to 1.34" (34mm) respectively, indicating relatively wet conditions compared to the rest of the year.The worst time to visit Vinton
For those averse to the cold conditions, the winter months, December to February, might prove to be the most challenging to navigate. During these months, temperatures routinely drop below freezing, spanning from 13.1°F (-10.5°C) to 29.7°F (-1.3°C), creating a biting chill in the air. In addition to the frigid temperatures, these months also see the highest frequency of snowfall, especially in January and February with 1.73" (44mm) and 1.34" (34mm) of snowfall respectively.Spring weather in Vinton
Spring in Vinton, encompassing the months of March through May, is marked by significant warming with temperatures escalating from 44.4°F (6.9°C) to 68.5°F (20.3°C). Relative humidity during these months remains mid-range, oscillating between 74% to 78%. This period sees the onset of a higher rainfall with precipitation increasing from 0.63" (16mm) in March to 1.85" (47mm) in May. The longer daylight hours, from 12 hours in March to 14.6 hours in May, may offer a bracing relief to the chilling winter months.Summer weather in Vinton
A notable feature of the meteorological pattern in Vinton is the hot summer months spanning from June to August. The temperature, reaching up to 80.1°F (26.7°C) in July, contrasts the low winter temperatures sharply. However, high humidity levels ranging from 81% to 84% may contribute to discomfort during hotter days. Despite the heat, rainfall is quite substantial during these months with precipitation ranging from 1.34" (34mm) to 1.38" (35mm), albeit lower than spring levels.Autumn weather in Vinton
The autumn season in Vinton, taking place from September to November, sees a gradual drop in temperatures. The ambient temperature decreases from 73.2°F (22.9°C) in September to 45°F (7.2°C) in November. Although the drop is significant, autumn proves to be fairly moderate with a relative humidity of between 72% and 78%. Rainfall decreases over these months, starting at 1.06" (27mm) in September and tapering to 0.59" (15mm) by November.Winter weather in Vinton
Vinton sees a particularly cold winter from December to February, with temperatures dropping to low levels that range from 13.1°F (-10.5°C) in January to 29.7°F (-1.3°C) in February. These three months also witness the highest frequency of snowfall, with the highest amount of 1.73" (44mm) falling in December. Additionally, winter is characterized by minimal sunshine hours, ranging from 4.3 hours in December to 4 hours in February, along with the shortest daylight duration of 9.2 hours in December and 9.5 hours in February.Weather in January
January in Vinton, Iowa is the coldest month where temperatures are from 13.1°F (-10.5°C) to 25.3°F (-3.7°C). The frequent snowfall turns the landscape into a winter wonderland. Days are considerably shorter, making this the perfect time for indoor activities. Weather in January »Weather in February
Heading into February, Vinton's weather begins to show slight improvements in temperature, though still remaining within the winter spectrum. The number of snowfall days decreases from January, morphing the city into a serene winter landscape. Weather in February »Weather in March
The arrival of March in Vinton hints at the advent of spring. Temperatures start rising from this month, marking a transition from the chilling winters. There's an observable increase in daylight hours, signalling extended outdoor activity times. Weather in March »Weather in April
Vinton welcomes the month of April with temperatures in the moderately warm range. The shift from cold is quite noticeable and offers pleasant days outdoors. Compared to March, April shows a significant increase in rainfall. The city enjoys longer daylight hours, paving the way for more outdoor pursuits. Weather in April »Weather in May
May in Vinton is the onset of warmer and lengthier days as summer approaches. There is a substantial increase in temperatures and rainfall compared to April. This can be a good time for outdoor activities including picnics and walks in the park. Weather in May »Weather in June
June is the start of the summer season in Vinton, offering sun-filled days. The city sees a remarkable surge in temperatures with clear skies for most parts of the month. This is an enjoyable time of the year for all outdoor enthusiasts as conditions turn favorable. Weather in June »Weather in July
July is the hottest month in Vinton with temperatures fluctuating between 64.4°F (18°C) to a roaring 80.1°F (26.7°C). The prolonged daylight hours during this month accommodate extended outdoor activities. However, the hot weather can be unforgiving during peak hours, with sun protection a must. Weather in July »Weather in August
In August, Vinton observes a slight dip in temperatures compared to July, but remains on the hot side. Generally, this month sees less rainfall and lower humidity levels. August is often sun-kissed with a fair share of clear sky days. Weather in August »Weather in September
September sees the transition from summer to fall in Vinton. The temperatures start to decrease and the days get shorter. Autumn lovers can start witnessing the transformation of foliage, offering picturesque views. Yet, the temperatures range from 54.7°F (12.6°C) to 73.2°F (22.9°C), suggesting summer has not quite left the stage. Weather in September »Weather in October
October in Vinton brings more noticeable changes in the weather. With it comes a fall in temperatures, shorter days, and transformation of deciduous trees. Determining factors for the wardrobe and plans become potential morning frosts and increased cloud cover. Weather in October »Weather in November
November often signals the start of winter season in Vinton with temperatures further dropping. The city heads towards the cold, often experiencing mild snowfall towards the end of the month. The daylight hours are considerably reduced, and outdoor activities become limited. Weather in November »Weather in December
December in Vinton is characterized by a festive weather pattern, as the city is plunged into winter's depths. The temperatures fall drastically, swiftly switching the vibrant autumn foliage to a blanket of snow. The majority of the days are short and cold, perfect to enjoy a white Christmas. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Vinton, IA
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.3°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure
Vinton, IA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Vinton, IA
- Average wind speed in January:
10.5mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.8mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
8.1mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Vinton, IA
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Vinton, IA
- Average rainfall in January:
0.43" - Average rainfall in February:
0.39" - Average rainfall in March:
0.63" - Average rainfall in April:
1.06" - Average rainfall in May:
1.85" - Average rainfall in June:
1.34"
- Average rainfall in July:
1.38" - Average rainfall in August:
0.75" - Average rainfall in September:
1.06" - Average rainfall in October:
0.71" - Average rainfall in November:
0.59" - Average rainfall in December:
0.43"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days
Vinton, IA
- Average rainfall days in January:
3.5 days - Average rainfall days in February:
3.4 days - Average rainfall days in March:
8.6 days - Average rainfall days in April:
11 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
13.9 days
- Average rainfall days in July:
12 days - Average rainfall days in August:
10.1 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
3.8 days
The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (3.4 days).
Average snowfall
Vinton, IA
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Vinton, IA
- Average snowfall days in January:
7.4 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
4.2 days - Average snowfall days in April:
1.2 days - Average snowfall days in May:
0 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:
0.7 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
5.5 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Vinton, IA
- Average daylight in January:
9h and 30min - 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 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - 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 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 36min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Vinton, IA
- Average sunshine days in January:
21.8 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
19.3 days - Average sunshine days in April:
16.7 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
15.3 days - Average sunshine days in August:
18.2 days - Average sunshine days in September:
18.9 days - Average sunshine days in October:
20.8 days - Average sunshine days in November:
21.8 days - Average sunshine days in December:
21.9 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (13.4 days).
Average UV index
Vinton, IA
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Vinton, IA
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
Vinton, IA
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





