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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 a freezing cold winter month in Dexter, Iowa, with an average temperature ranging between max 28°F (-2.2°C) and min 14.5°F (-9.7°C). Dexter, Iowa, experiences its lowest temperatures in January, with an average peak of 28°F (-2.2°C) and a low of 14.5°F (-9.7°C). Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Dexter, Iowa, with an average temperature fluctuating between 17.8°F (-7.9°C) and 32°F (0°C). Dexter's entry into February measures an average high-temperature of a wintry 32°F (0°C), closely parallel to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Dexter, Iowa, with an average temperature fluctuating between 31.8°F (-0.1°C) and 46.9°F (8.3°C). March witnesses a clear temperature increase, soaring from a wintry 32°F (0°C) in February to a chilly 46.9°F (8.3°C). Weather in March »
Weather in April
April in Dexter, Iowa, is a refreshing spring month, with an average temperature fluctuating between 41.9°F (5.5°C) and 59.2°F (15.1°C). In Dexter, the average high-temperature in April rises, from a chilly 46.9°F (8.3°C) in March, to a mild 59.2°F (15.1°C). Weather in April »
Weather in May
May, the last month of the spring in Dexter, is a pleasant month, with an average temperature ranging between max 69.3°F (20.7°C) and min 52.3°F (11.3°C). Dexter's transition into May is marked by a rise in the average high-temperature, advancing from a moderate 59.2°F (15.1°C) in April to a pleasant 69.3°F (20.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Dexter, Iowa, with an average temperature varying between 62.8°F (17.1°C) and 79.2°F (26.2°C). June brings a rise in Dexter's average high-temperature, moving from a pleasant 69.3°F (20.7°C) in May to a warm 79.2°F (26.2°C). Weather in June »
Weather in July
July, like June, in Dexter, Iowa, is a moderately hot summer month, with an average temperature ranging between min 64.9°F (18.3°C) and max 82.2°F (27.9°C). July is the warmest month of the year, registering average temperatures as high as 82.2°F (27.9°C) and as low as 64.9°F (18.3°C). In July, the heat index is estimated at a hot 89.6°F (32°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Dexter, Iowa, with an average temperature varying between 81°F (27.2°C) and 62.2°F (16.8°C). The initiation of August records an average high-temperature of a still warm 81°F (27.2°C), displaying a near consistency with the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Dexter, is still a warm month, with an average temperature fluctuating between 55.9°F (13.3°C) and 74.8°F (23.8°C). September signifies a gentle decline in Dexter's average high-temperature, easing from a warm 81°F (27.2°C) in August to a still moderately hot 74.8°F (23.8°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Dexter, Iowa, with an average temperature ranging between max 60.3°F (15.7°C) and min 43.9°F (6.6°C). Dexter, Iowa, experiences a clear temperature downturn in October, with average high-temperatures moving from a warm 74.8°F (23.8°C) in September to a moderate 60.3°F (15.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Dexter, Iowa, with an average temperature ranging between max 46.8°F (8.2°C) and min 32.5°F (0.3°C). During the transition into November, Dexter observes a decrease in the average high-temperature, falling from a refreshing 60.3°F (15.7°C) in October to a frosty 46.8°F (8.2°C). Weather in November »
Weather in December
December, the first month of the winter in Dexter, is also an icy month, with an average temperature varying between 33.3°F (0.7°C) and 21.7°F (-5.7°C). The decrease of average high-temperatures is mild in December, with a decline from a chilly 46.8°F (8.2°C) in November to a wintry 33.3°F (0.7°C). Weather in December »
Updated: Jul 10, 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 is the coldest time of year?
The coldest month is January, with an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 14.5°F (-9.7°C).
What are the most humid months in Dexter?
The months with the highest humidity are January and February, with an average relative humidity of 82%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 3.3 days and accumulates 0.55" (14mm) of precipitation.
How much does it rain?
In Dexter, during the entire year, the rain falls for 117.3 days and collects up to 19.09" (485mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall.
How much does it snow?
Throughout the year, there are 31.7 snowfall days, and 9.29" (236mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.3h of sunshine.
When is the lowest UV index?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 7.8 days and typically aggregates up to 2.76" (70mm) 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 rainiest month?
June is the month with the most rainfall. Rain falls for 15.4 days and accumulates 3.11" (79mm) of precipitation.
When it does not snow?
In Dexter, snow does not fall in June through September.
When are the longest days?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest?
The warmest period tends to be July, when average temperatures fluctuate between a high of 82.2°F (27.9°C) and a low of 64.9°F (18.3°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.2h of sunshine.
What is the least humid month?
October is the least humid month, with an average relative humidity of 70%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Dexter, IA
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure
Dexter, 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
Dexter, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.9mph - Average wind speed in June:
8.3mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.2mph - Average wind speed in September:
8.3mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.3mph
The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity
Dexter, IA
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Dexter, IA
- Average rainfall in January:
0.55" - Average rainfall in February:
0.63" - Average rainfall in March:
1.22" - Average rainfall in April:
1.89" - Average rainfall in May:
3.07" - Average rainfall in June:
3.11"
- Average rainfall in July:
1.97" - Average rainfall in August:
2.09" - Average rainfall in September:
1.89" - Average rainfall in October:
1.26" - Average rainfall in November:
0.75" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Dexter, IA
- Average rainfall days in January:
3.3 days - Average rainfall days in February:
2.9 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
15.4 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
8 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
4.1 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall
Dexter, IA
- Average snowfall in January:
2.32" - Average snowfall in February:
2.76" - Average snowfall in March:
1.18" - Average snowfall in April:
0.43" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Dexter, IA
- Average snowfall days in January:
8.8 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
0.7 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:
0.9 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
6 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Dexter, IA
- Average daylight in January:
9h and 4min - 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 3min - 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 1min - 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 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Dexter, IA
- Average sunshine days in January:
19.9 days - Average sunshine days in February:
18 days - Average sunshine days in March:
17.2 days - Average sunshine days in April:
15.3 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
13.7 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
21.7 days - Average sunshine days in December:
22 days
The month with the most sunshine days is December (22 days).
The month with the least sunshine days is May (12.1 days).
Average UV index
Dexter, 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 and December (UV index 1).
Average cloud cover
Dexter, IA
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility
Dexter, IA
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Dexter, Iowa, USA
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