Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Winthrop, Iowa, is a freezing cold winter month, with an average temperature ranging between max 24.3°F (-4.3°C) and min 12.2°F (-11°C). January tends to be the coldest month, with temperatures averaging a daily high of 24.3°F (-4.3°C) and a low of 12.2°F (-11°C). Weather in January »
Weather in February
February, the last month of the winter in Winthrop, is another freezing cold month, with temperature in the range of an average low of 15.4°F (-9.2°C) and an average high of 28.2°F (-2.1°C). The ushering in of February brings an average high-temperature of a still freezing cold 28.2°F (-2.1°C), closely mirroring the 24.3°F (-4.3°C) of January. Weather in February »
Weather in March
March, the first month of the spring in Winthrop, is a chilly month, with an average temperature varying between 43.5°F (6.4°C) and 29.1°F (-1.6°C). March witnesses a clear temperature increase, soaring from a subzero cold 28.2°F (-2.1°C) in February to a frosty 43.5°F (6.4°C). Weather in March »
Weather in April
April is a mild spring month in Winthrop, Iowa, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 56.1°F (13.4°C). In Winthrop, the onset of April comes with an increased average high-temperature, moving from March's frosty 43.5°F (6.4°C) to a moderate 56.1°F (13.4°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Winthrop, Iowa, with an average temperature varying between 51.3°F (10.7°C) and 68°F (20°C). May brings a rise in Winthrop's average high-temperature, moving from a mild 56.1°F (13.4°C) in April to a pleasant 68°F (20°C). Weather in May »
Weather in June
June, the first month of the summer in Winthrop, is a warm month, with an average temperature varying between 60.8°F (16°C) and 77°F (25°C). As May transitions into June, a change in temperatures is observed, with average highs moving from an agreeable 68°F (20°C) to a warm 77°F (25°C). Weather in June »
Weather in July
July, like June, in Winthrop, Iowa, is a moderately hot summer month, with an average temperature fluctuating between 63.1°F (17.3°C) and 79.5°F (26.4°C). July is the warmest month, exhibiting average temperatures of 79.5°F (26.4°C) at the peak and 63.1°F (17.3°C) at the base. Weather in July »
Weather in August
August, the last month of the summer in Winthrop, is also a moderately hot month, with temperature in the range of an average low of 60.6°F (15.9°C) and an average high of 78.3°F (25.7°C). With the advent of August, Winthrop's high-temperatures adjust to a still warm 78.3°F (25.7°C), closely aligning with the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Winthrop, is also an agreeable month, with an average temperature ranging between max 72.5°F (22.5°C) and min 54°F (12.2°C). Winthrop's transition into September involves a gentle shift in temperature, receding from a warm 78.3°F (25.7°C) in August to a pleasant 72.5°F (22.5°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in Winthrop, Iowa, with an average temperature ranging between max 58.5°F (14.7°C) and min 43.2°F (6.2°C). Welcoming October, Winthrop observes a shift in the average high-temperature, falling from September's agreeable 72.5°F (22.5°C) to a mild 58.5°F (14.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Winthrop, is also a frosty month, with temperature in the range of an average low of 30.9°F (-0.6°C) and an average high of 44.1°F (6.7°C). Stepping into November, Winthrop observes a temperature decline, with the average high falling from October's refreshing 58.5°F (14.7°C) to a chilly 44.1°F (6.7°C). Weather in November »
Weather in December
December, the first month of the winter in Winthrop, is also a subzero cold month, with an average temperature fluctuating between 20.8°F (-6.2°C) and 31.1°F (-0.5°C). Observing a mild shift, the average high-temperature during December reduces from November's chilly 44.1°F (6.7°C) to a freezing cold 31.1°F (-0.5°C). Weather in December »
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
January brings the lowest temperatures, with an average high of 24.3°F (-4.3°C) and an average low of 12.2°F (-11°C).
What is the most humid month?
The most humid month is January, with an average relative humidity of 87%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 3.6 days and accumulates 1.14" (29mm) of precipitation.
How many days does it rain?
Throughout the year, there are 140.6 rainfall days, and 30" (762mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
When does it snow the most in Winthrop?
The month with the most snowfall is January, when snow falls for 11.3 days and typically aggregates up to 5.12" (130mm) of snow.
How much does it snow?
Throughout the year, there are 43.9 snowfall days, and 18.43" (468mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 3.7h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST)?
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 wettest month?
The months with the most rainfall are May and June, with an average 4.37" (111mm) of precipitation.
When is the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 5.
When it does not snow?
June through September are months without snowfall in Winthrop.
When are the longest days?
With an average of 15h and 12min of daylight, June has the longest days of the year.
What month is the hottest in Winthrop?
July, noted for its average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 63.1°F (17.3°C), is considered the warmest month.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 9.8h of sunshine.
What is the least humid month?
With an average relative humidity of 73%, October is the least humid month.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Winthrop, IA
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure
Winthrop, 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:
29.96"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.08"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
Winthrop, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.4mph - 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:
8.2mph - Average wind speed in October:
9.8mph - Average wind speed in November:
10.5mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity
Winthrop, IA
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Winthrop, IA
- Average rainfall in January:
1.14" - Average rainfall in February:
1.22" - Average rainfall in March:
1.81" - Average rainfall in April:
3.35" - Average rainfall in May:
4.37" - Average rainfall in June:
4.37"
The wettest months (with the highest rainfall) are May and June (4.37").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days
Winthrop, IA
- Average rainfall days in January:
3.6 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
6.6 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall
Winthrop, IA
- Average snowfall in January:
5.12" - Average snowfall in February:
4.88" - Average snowfall in March:
2.13" - Average snowfall in April:
0.83" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Winthrop, IA
- Average snowfall days in January:
11.3 days - Average snowfall days in February:
9.7 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.1 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:
0.8 days - Average snowfall days in November:
3.9 days - Average snowfall days in December:
10 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Winthrop, IA
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 6min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Winthrop, IA
- Average sunshine days in January:
17.5 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
8.2 days
- Average sunshine days in July:
10.4 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
17.2 days
The months with the most sunshine days are January, October and November (17.5 days).
The month with the least sunshine days is June (8.2 days).
Average UV index
Winthrop, IA
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 and December (UV index 1).
Average cloud cover
Winthrop, IA
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility
Winthrop, IA
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Winthrop, Iowa, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location