Climate and monthly weather forecastGreen Valley, WI
Climate and monthly weather forecast
Weather in January
January, the same as December, in Green Valley, Wisconsin, is another subzero cold winter month, with temperature in the range of an average high of 22.6°F (-5.2°C) and an average low of 12.6°F (-10.8°C). The month of January, characterized by an average high of 22.6°F (-5.2°C) and a low of 12.6°F (-10.8°C), is recognized as the coldest. Weather in January »Weather in February
February, the last month of the winter in Green Valley, is also a subzero cold month, with an average temperature ranging between max 25.5°F (-3.6°C) and min 14.2°F (-9.9°C). Green Valley experiences a recorded average high-temperature of a still freezing cold 25.5°F (-3.6°C) in February, closely aligned with January's 22.6°F (-5.2°C). Weather in February »Weather in March
The first month of the spring, March, is an icy month in Green Valley, Wisconsin, with an average temperature varying between 25°F (-3.9°C) and 38.1°F (3.4°C). The start of March brings a rise in the average high-temperature, moving from a subzero cold 25.5°F (-3.6°C) in February to an icy 38.1°F (3.4°C). Weather in March »Weather in April
April is a frosty spring month in Green Valley, Wisconsin, with an average temperature ranging between min 34.3°F (1.3°C) and max 49.6°F (9.8°C). April signals a shift in the average high-temperature, moving from March's cold 38.1°F (3.4°C) to a frosty 49.6°F (9.8°C). Weather in April »Weather in May
May, the last month of the spring in Green Valley, is an enjoyable month, with an average temperature fluctuating between 63.9°F (17.7°C) and 44.8°F (7.1°C). Observing a rise in May, the average high-temperature goes from April's frosty 49.6°F (9.8°C) to a refreshing 63.9°F (17.7°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Green Valley, Wisconsin, with an average temperature fluctuating between 72°F (22.2°C) and 53.4°F (11.9°C). As Green Valley transitions into June, a marginal rise in the average high-temperature is observed, moving from a comfortable 63.9°F (17.7°C) in May to a pleasant 72°F (22.2°C). Weather in June »Weather in July
July is a moderately hot summer month in Green Valley, Wisconsin, with an average temperature ranging between max 78.4°F (25.8°C) and min 59.7°F (15.4°C). July temperatures tend to peak at an average high of 78.4°F (25.8°C) and dip to a low of 59.7°F (15.4°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Green Valley, Wisconsin, with an average temperature fluctuating between 77.5°F (25.3°C) and 58.6°F (14.8°C). August's weather displays an average high-temperature of a still warm 77.5°F (25.3°C), slightly varied from July's 78.4°F (25.8°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Green Valley, Wisconsin, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 69.6°F (20.9°C). The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a warm 77.5°F (25.3°C) in August to a pleasant 69.6°F (20.9°C). Weather in September »Weather in October
October, like September, in Green Valley, Wisconsin, is a cool autumn month, with temperature in the range of an average high of 54.9°F (12.7°C) and an average low of 41.5°F (5.3°C). Green Valley's transition into October is marked by a distinct drop in the average high-temperature, reducing from an agreeable 69.6°F (20.9°C) in September to a fresh 54.9°F (12.7°C). Weather in October »Weather in November
November, the last month of the autumn in Green Valley, is another cold month, with an average temperature fluctuating between 41.2°F (5.1°C) and 30.6°F (-0.8°C). With November's onset, the average high-temperature recedes from October's cool 54.9°F (12.7°C) to a cold 41.2°F (5.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Green Valley, Wisconsin, with an average temperature fluctuating between 28.4°F (-2°C) and 19.8°F (-6.8°C). As November transitions into December, Green Valley sees a drop in the average high-temperature, transitioning from an icy 41.2°F (5.1°C) to a subzero cold 28.4°F (-2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Green Valley, WI
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.6°F).
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure
Green Valley, WI
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Green Valley, WI
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.1mph - Average wind speed in March:
8.7mph - Average wind speed in April:
9.3mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.3mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Green Valley, WI
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall
Green Valley, WI
- Average rainfall in January:
1.14" - Average rainfall in February:
1.3" - Average rainfall in March:
1.69" - Average rainfall in April:
2.52" - Average rainfall in May:
2.95" - Average rainfall in June:
2.64"
- Average rainfall in July:
2.56" - Average rainfall in August:
1.77" - Average rainfall in September:
1.61" - Average rainfall in October:
2.52" - Average rainfall in November:
1.57" - Average rainfall in December:
1.77"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days
Green Valley, WI
- Average rainfall days in January:
5.1 days - Average rainfall days in February:
4.5 days - Average rainfall days in March:
9.9 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (4.5 days).
Average snowfall
Green Valley, WI
- Average snowfall in January:
5.47" - Average snowfall in February:
6.93" - Average snowfall in March:
3.31" - Average snowfall in April:
2.95" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Green Valley, WI
- Average snowfall days in January:
16.3 days - Average snowfall days in February:
14.9 days - Average snowfall days in March:
10.6 days - Average snowfall days in April:
5.3 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:
1.2 days - Average snowfall days in November:
6.9 days - Average snowfall days in December:
13.7 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Green Valley, WI
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
3h and 36min - Average sunshine in February:
3h and 30min - Average sunshine in March:
5h and 30min - Average sunshine in April:
7h and 24min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 54min - Average sunshine in December:
3h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days
Green Valley, WI
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
11.9 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
15 days - Average sunshine days in November:
16.6 days - Average sunshine days in December:
15.3 days
The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is April (11.6 days).
Average UV index
Green Valley, WI
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and March (UV index 1).
Average cloud cover
Green Valley, WI
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Green Valley, WI
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





