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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 Andover, Iowa, with temperature in the range of an average high of 26.1°F (-3.3°C) and an average low of 13.5°F (-10.3°C). The month of January sees the lowest average temperatures, reaching 26.1°F (-3.3°C) at the peak and 13.5°F (-10.3°C) at the low. Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Andover, Iowa, with an average temperature fluctuating between 30.4°F (-0.9°C) and 16.9°F (-8.4°C). With the onset of February, Andover's average high-temperature clocks in at a still subzero cold 30.4°F (-0.9°C), showing a minor fluctuation from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Andover, Iowa, with an average temperature fluctuating between 44.6°F (7°C) and 29.8°F (-1.2°C). With the onset of March, Andover's average high-temperature experiences a rise, moving from February's subzero cold 30.4°F (-0.9°C) to a frosty 44.6°F (7°C). Weather in March »
Weather in April
April in Andover, Iowa, is a mild spring month, with an average temperature varying between 56.7°F (13.7°C) and 40.6°F (4.8°C). The start of April is characterized by an increase in the average high-temperature, transitioning from a chilly 44.6°F (7°C) in March to a moderate 56.7°F (13.7°C). Weather in April »
Weather in May
May, the last month of the spring in Andover, is an agreeable month, with an average temperature fluctuating between 51.6°F (10.9°C) and 68.5°F (20.3°C). The arrival of May sees a shift in the average high-temperature, moving from a refreshing 56.7°F (13.7°C) in April to a pleasant 68.5°F (20.3°C). Weather in May »
Weather in June
June, the first month of the summer in Andover, is a moderately hot month, with an average temperature ranging between max 77.4°F (25.2°C) and min 60.8°F (16°C). With the beginning of June, Andover's average high-temperature sees a minor increase, transitioning from an agreeable 68.5°F (20.3°C) in May to a moderately hot 77.4°F (25.2°C). Weather in June »
Weather in July
July, like June, in Andover, Iowa, is a moderately hot summer month, with an average temperature varying between 63.5°F (17.5°C) and 80.1°F (26.7°C). The highest temperatures are recorded in July, with averages reaching a high of 80.1°F (26.7°C) and a low of 63.5°F (17.5°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Andover, Iowa, with an average temperature fluctuating between 61.2°F (16.2°C) and 79.2°F (26.2°C). The commencement of August brings an average high-temperature of a still warm 79.2°F (26.2°C), marking an inconsequential divergence from July. Weather in August »
Weather in September
September, the first month of the autumn in Andover, is also a moderately hot month, with an average temperature ranging between max 73.4°F (23°C) and min 54.5°F (12.5°C). The arrival of September suggests a slight decrease in the average high-temperature, moving from 79.2°F (26.2°C) in August to a still warm 73.4°F (23°C). Weather in September »
Weather in October
October, the same as September, in Andover, Iowa, is another refreshing autumn month, with temperature in the range of an average low of 43.5°F (6.4°C) and an average high of 59.7°F (15.4°C). October's arrival comes with a decrease in the average high-temperature, moving from a warm 73.4°F (23°C) in September to a refreshing 59.7°F (15.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Andover, Iowa, with temperature in the range of an average high of 45.1°F (7.3°C) and an average low of 31.6°F (-0.2°C). As Andover steps into November, the average high-temperature decreases significantly from the a moderate 59.7°F (15.4°C) of October to a frosty 45.1°F (7.3°C). Weather in November »
Weather in December
December, the first month of the winter in Andover, is also an icy month, with an average temperature fluctuating between 32.7°F (0.4°C) and 22.5°F (-5.3°C). A shift in Andover's weather is observed as November turns into December, with the average high temperature reducing from a chilly 45.1°F (7.3°C) to an icy 32.7°F (0.4°C). Weather in December »
Updated: Feb 12, 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 in Andover?
Andover's January weather reaches an average high of 26.1°F (-3.3°C) and an average low of 13.5°F (-10.3°C), making it the coldest month.
What is the most humid month in Andover?
With an average relative humidity of 86%, January is the most humid month in Andover, Iowa.
How much does it rain in Andover?
Throughout the year, in Andover, there are 149.3 rainfall days, and 29.76" (756mm) of precipitation is accumulated.
When does it snow in Andover?
January through May, October through December are months with snowfall.
What is the snowiest month in Andover?
January is the month with the most snowfall in Andover, Iowa. Snow falls for 11.7 days and accumulates 5.12" (130mm) of snow.
How much does it snow in Andover?
Throughout the year, in Andover, there are 41.2 snowfall days, and 16.73" (425mm) of snow is accumulated.
What is the month with the least sunshine in Andover?
With an average of 3.7h of sunshine, January has the least sunshine of the year in Andover, Iowa.
When is the lowest UV index in Andover?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Andover, Iowa.
What is the driest month in Andover?
February is the month with the least rainfall in Andover. Rain falls for 4.4 days and accumulates 1.38" (35mm) of precipitation.
When is Daylight Saving Time (DST) in Andover?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Andover, Iowa, 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 in Andover?
The month with the most rainfall is May, when the rain falls for 18.5 days and typically aggregates up to 4.09" (104mm) of precipitation.
When it does not snow in Andover?
In Andover, snow does not fall in June through September.
When are the longest days in Andover?
The month with the longest days in Andover, Iowa, is June, with an average of 15h and 12min of daylight.
What time of the year is the hottest in Andover?
July, with its average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 63.5°F (17.5°C), holds the record as the warmest month in Andover.
What month has the most sunshine in Andover?
The month with the most sunshine in Andover is July, with an average of 9.8h of sunshine.
When is the highest UV index in Andover?
July is the month with the highest UV index in Andover, with an average maximum UV index of 6.
What is the least humid month in Andover?
October is the least humid month in Andover, with an average relative humidity of 74%.
What is the month with the shortest days in Andover?
December has the shortest days of the year in Andover, with an average of 9h and 12min of daylight.
Average temperature
Andover, 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 (26.1°F).
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure
Andover, IA
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Andover, IA
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Andover, IA
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Andover, IA
- Average rainfall in January:
1.42" - Average rainfall in February:
1.38" - Average rainfall in March:
1.89" - Average rainfall in April:
3.27" - Average rainfall in May:
4.09" - Average rainfall in June:
3.82"
- Average rainfall in July:
3.23" - Average rainfall in August:
2.17" - Average rainfall in September:
2.48" - Average rainfall in October:
2.68" - Average rainfall in November:
1.81" - Average rainfall in December:
1.54"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days
Andover, IA
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
4.4 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
16 days - Average rainfall days in May:
18.5 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall
Andover, IA
- Average snowfall in January:
5.12" - Average snowfall in February:
4.06" - Average snowfall in March:
2.01" - Average snowfall in April:
0.91" - Average snowfall in May:
0.04" - 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
Andover, IA
- Average snowfall days in January:
11.7 days - Average snowfall days in February:
9.4 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
1.4 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:
0.4 days - Average snowfall days in November:
3.3 days - Average snowfall days in December:
8.7 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Andover, 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 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 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 3min - 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
Andover, IA
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
16 days - Average sunshine days in October:
15.8 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (9.6 days).
Average UV index
Andover, IA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Andover, IA
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility
Andover, IA
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Andover, Iowa, USA
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