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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, like December, is another subzero cold winter month in Ashton, Iowa, with an average temperature varying between 9.9°F (-12.3°C) and 23.4°F (-4.8°C). January, on average, is the coldest month, registering a high temperature of 23.4°F (-4.8°C) and a low of 9.9°F (-12.3°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Ashton, Iowa, with an average temperature ranging between max 26.8°F (-2.9°C) and min 13.6°F (-10.2°C). The start of February sees the average high-temperature at a still freezing cold 26.8°F (-2.9°C), showing little difference from January's 23.4°F (-4.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Ashton, Iowa, with temperature in the range of an average high of 43.2°F (6.2°C) and an average low of 28.6°F (-1.9°C). The shift into March brings a noticeable increase in the average high-temperature, soaring from a subzero cold 26.8°F (-2.9°C) in February to a frosty 43.2°F (6.2°C). Weather in March »
Weather in April
April is a moderate spring month in Ashton, Iowa, with an average temperature fluctuating between 55.6°F (13.1°C) and 39.7°F (4.3°C). Ashton experiences a temperature shift with the start of April, with average high-temperatures moving from a frosty 43.2°F (6.2°C) in March to a refreshing 55.6°F (13.1°C). Weather in April »
Weather in May
May, the last month of the spring in Ashton, is a refreshing month, with an average temperature ranging between max 67.8°F (19.9°C) and min 51.4°F (10.8°C). Ashton's May weather shows an increase in high-temperatures, moving from April's refreshing 55.6°F (13.1°C) to an enjoyable 67.8°F (19.9°C). Weather in May »
Weather in June
June, the first month of the summer in Ashton, is a moderately hot month, with an average temperature fluctuating between 61°F (16.1°C) and 77.5°F (25.3°C). June brings a temperature change, with average high-temperatures moving from May's comfortable 67.8°F (19.9°C) to a moderately hot 77.5°F (25.3°C). Weather in June »
Weather in July
July, like June, in Ashton, Iowa, is a moderately hot summer month, with an average temperature ranging between max 81.5°F (27.5°C) and min 63.1°F (17.3°C). July, with an average high of 81.5°F (27.5°C) and a low of 63.1°F (17.3°C), signifies the warmest month of the year. Throughout July, the heat index is calculated to be a hot 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Ashton, Iowa, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 79.3°F (26.3°C). As Ashton welcomes August, the average high-temperature stabilizes at a still warm 79.3°F (26.3°C), showing little deviation from July's 81.5°F (27.5°C). Weather in August »
Weather in September
September, the first month of the autumn in Ashton, is still a warm month, with an average temperature ranging between max 73.6°F (23.1°C) and min 53.8°F (12.1°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's moderately hot 79.3°F (26.3°C) to a still warm 73.6°F (23.1°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Ashton, Iowa, with temperature in the range of an average low of 41.9°F (5.5°C) and an average high of 57.6°F (14.2°C). As Ashton, Iowa, steps into October, the average high-temperature decreases significantly from the a warm 73.6°F (23.1°C) of September to a mild 57.6°F (14.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Ashton, is another chilly month, with an average temperature ranging between max 43.3°F (6.3°C) and min 29.8°F (-1.2°C). Transition into November marks a drop in the average high-temperature, moving from a moderate 57.6°F (14.2°C) in October to a chilly 43.3°F (6.3°C). Weather in November »
Weather in December
December, the first month of the winter in Ashton, is also a subzero cold month, with temperature in the range of an average high of 27.5°F (-2.5°C) and an average low of 16.3°F (-8.7°C). As December begins, there is a noticeable decrease in the average high-temperature, falling from a frosty 43.3°F (6.3°C) in November to a freezing cold 27.5°F (-2.5°C). Weather in December »
Updated: Jul 26, 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?
The coldest period is January, when temperatures fluctuate between an average high of 23.4°F (-4.8°C) and a low of 9.9°F (-12.3°C).
What is the most humid month?
January is the most humid month, with an average relative humidity of 88%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.71" (18mm) of precipitation.
How much does it rain?
In Ashton, during the entire year, the rain falls for 128.1 days and collects up to 24.17" (614mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
How many days does it snow?
Throughout the year, there are 48.8 snowfall days, and 19.21" (488mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.1h of sunshine.
What are the months with the lowest UV index?
January and February, with an average maximum UV index of 1, are months with the lowest UV index.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 9.6 days and accumulates 4.76" (121mm) of snow.
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?
June is the month with the most rainfall in Ashton. Rain falls for 17.8 days and accumulates 3.86" (98mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days in Ashton?
With an average of 15h and 18min of daylight, June has the longest days of the year in Ashton, Iowa.
What are the months with the highest UV index?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What part of the year is the hottest?
Ashton notes the warmest temperatures in July, with a average high of 81.5°F (27.5°C) and a low of 63.1°F (17.3°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.4h of sunshine.
What is the least humid month?
October is the least humid month in Ashton, with an average relative humidity of 68%.
What is the month with the shortest days in Ashton?
December has the shortest days of the year, with an average of 9h and 0min of daylight.
Average temperature
Ashton, IA
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (23.4°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 (9.9°F).
Average pressure
Ashton, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Ashton, IA
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.9mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.8mph - Average wind speed in June:
8.9mph
- Average wind speed in July:
7.8mph - Average wind speed in August:
8mph - Average wind speed in September:
9.3mph - Average wind speed in October:
10.4mph - Average wind speed in November:
10.7mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity
Ashton, IA
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Ashton, IA
- Average rainfall in January:
0.71" - Average rainfall in February:
0.91" - Average rainfall in March:
1.61" - Average rainfall in April:
2.56" - Average rainfall in May:
3.31" - Average rainfall in June:
3.86"
- Average rainfall in July:
2.17" - Average rainfall in August:
2.32" - Average rainfall in September:
2.17" - Average rainfall in October:
2.28" - Average rainfall in November:
0.94" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days
Ashton, IA
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
2.6 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
6 days - Average rainfall days in December:
4.9 days
The months with the highest number of rainy days are May and June (17.8 days).
The month with the least rainy days is February (2.6 days).
Average snowfall
Ashton, IA
- Average snowfall in January:
3.43" - Average snowfall in February:
4.76" - Average snowfall in March:
3.74" - Average snowfall in April:
1.57" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Ashton, IA
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
9.6 days - Average snowfall days in March:
8.2 days - Average snowfall days in April:
2.8 days - Average snowfall days in May:
0.3 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:
1.8 days - Average snowfall days in November:
4.3 days - Average snowfall days in December:
10 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Ashton, IA
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - 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 2min
- Average daylight in July:
15h and 0min - 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 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Ashton, IA
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
15.9 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
12.9 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (9.6 days).
Average UV index
Ashton, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover
Ashton, IA
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Ashton, 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).
Ashton, Iowa, USA
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