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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 Green Island, Iowa, with an average temperature ranging between min 13.1°F (-10.5°C) and max 25.7°F (-3.5°C). Green Island reaches its lowest average temperatures in January, measuring 25.7°F (-3.5°C) at the peak and 13.1°F (-10.5°C) at the lowest. Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Green Island, Iowa, with an average temperature ranging between min 16.2°F (-8.8°C) and max 29.3°F (-1.5°C). Green Island ushers in February with an average high-temperature of a still subzero cold 29.3°F (-1.5°C), showing a close resemblance to the previous month. Weather in February »
Weather in March
March, the first month of the spring in Green Island, is a frosty month, with an average temperature fluctuating between 44.2°F (6.8°C) and 29.5°F (-1.4°C). The beginning of March marks a clear shift in the average high-temperature, advancing from February's subzero cold 29.3°F (-1.5°C) to a frosty 44.2°F (6.8°C). Weather in March »
Weather in April
April is a moderate spring month in Green Island, Iowa, with an average temperature varying between 39.7°F (4.3°C) and 56.1°F (13.4°C). Noticing a change, the average high-temperature during April moves from March's chilly 44.2°F (6.8°C) to a refreshing 56.1°F (13.4°C). Weather in April »
Weather in May
May, the last month of the spring in Green Island, is an agreeable month, with an average temperature fluctuating between 50.7°F (10.4°C) and 68.2°F (20.1°C). An escalation in the average high-temperature is seen with the onset of May, moving from a mild 56.1°F (13.4°C) in April to an agreeable 68.2°F (20.1°C). Weather in May »
Weather in June
June, the first month of the summer in Green Island, is a warm month, with an average temperature fluctuating between 60.1°F (15.6°C) and 77°F (25°C). Observing a slight rise in June, the average high-temperature shifts from May's agreeable 68.2°F (20.1°C) to a warm 77°F (25°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Green Island, Iowa, with an average temperature ranging between min 63.5°F (17.5°C) and max 79.9°F (26.6°C). Green Island's temperatures tend to reach their peak averages in July, with a high of 79.9°F (26.6°C) and a low of 63.5°F (17.5°C). Weather in July »
Weather in August
August, the last month of the summer in Green Island, is another warm month, with an average temperature varying between 61°F (16.1°C) and 79°F (26.1°C). Green Island experiences a recorded average high-temperature of a still warm 79°F (26.1°C) in August, closely aligned with July's 79.9°F (26.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Green Island, Iowa, with an average temperature ranging between min 54°F (12.2°C) and max 73°F (22.8°C). During the shift to September, Green Island records a mild decrease in average high-temperature, moving from a warm 79°F (26.1°C) in August to a pleasant 73°F (22.8°C). Weather in September »
Weather in October
October, the same as September, in Green Island, Iowa, is another refreshing autumn month, with temperature in the range of an average low of 43°F (6.1°C) and an average high of 59.2°F (15.1°C). October shows a mild decline in the average high-temperature, falling from September's pleasant 73°F (22.8°C) to a refreshing 59.2°F (15.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Green Island, is another chilly month, with an average temperature varying between 31.1°F (-0.5°C) and 44.8°F (7.1°C). November's arrival sees a clear drop in the average high-temperature, decreasing from October's moderate 59.2°F (15.1°C) to a frosty 44.8°F (7.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Green Island, Iowa, with temperature in the range of an average high of 32°F (0°C) and an average low of 21.6°F (-5.8°C). With December's onset, the average high-temperature recedes from November's frosty 44.8°F (7.1°C) to an icy 32°F (0°C). Weather in December »
Updated: Jul 29, 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?
In Green Island, January is known for its average lowest temperatures, reaching a high of 25.7°F (-3.5°C) and a low of 13.1°F (-10.5°C).
What is the most humid month?
January is the most humid month, with an average relative humidity of 87%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 5.4 days and accumulates 1.22" (31mm) of precipitation.
How much does it rain?
Throughout the year, there are 145.6 rainfall days, and 28.9" (734mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 10.6 days and typically aggregates up to 4.61" (117mm) of snow.
How much does it snow?
In Green Island, during the entire year, snow falls for 40.1 days and aggregates up to 16.61" (422mm) of snow.
What is the month with the least sunshine in Green Island?
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?
May is the month with the most rainfall in Green Island. Rain falls for 19.8 days and accumulates 4.13" (105mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days in Green Island?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What are the warmest months?
In Green Island, July is the month with the highest recorded average temperatures, measuring a high of 79.9°F (26.6°C) and a low of 63.5°F (17.5°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 9.9h of sunshine.
When is the highest UV index?
With an average maximum UV index of 6, July is the month with the highest UV index.
What is the least humid month?
With an average relative humidity of 75%, October is the least humid month in Green Island.
What is the month with the shortest days?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Green Island, IA
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.7°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 (13.1°F).
Average pressure
Green Island, IA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.12"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:
29.9"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:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Green Island, IA
- Average wind speed in January:
9.9mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Green Island, IA
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall
Green Island, IA
- Average rainfall in January:
1.22" - Average rainfall in February:
1.34" - Average rainfall in March:
1.81" - Average rainfall in April:
3.39" - Average rainfall in May:
4.13" - Average rainfall in June:
3.62"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days
Green Island, IA
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
4.5 days - Average rainfall days in March:
12 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
19.8 days - Average rainfall days in June:
17.9 days
- Average rainfall days in July:
17.5 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
12 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (4.5 days).
Average snowfall
Green Island, IA
The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Green Island, IA
- Average snowfall days in January:
10.6 days - Average snowfall days in February:
9.3 days - Average snowfall days in March:
5.7 days - Average snowfall days in April:
1.6 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:
3.5 days - Average snowfall days in December:
8.7 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Green Island, 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 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - 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 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Green Island, IA
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
14 days - Average sunshine days in April:
10.6 days - Average sunshine days in May:
9.5 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
16.9 days - Average sunshine days in November:
19 days - Average sunshine days in December:
17.1 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (9.5 days).
Average UV index
Green Island, 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
Green Island, 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
Green Island, 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).
Green Island, Iowa, USA
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