Climate and monthly weather forecastGrantsburg, WI
Climate and monthly weather forecast
Weather in January
January, the same as December, in Grantsburg, Wisconsin, is another subzero cold winter month, with an average temperature fluctuating between 18°F (-7.8°C) and 4.8°F (-15.1°C). January, with an average high of 18°F (-7.8°C) and a low of 4.8°F (-15.1°C), signifies the coldest month of the year. Weather in January »Weather in February
February, the last month of the winter in Grantsburg, is also a subzero cold month, with an average temperature varying between 8.1°F (-13.3°C) and 21.9°F (-5.6°C). As Grantsburg, Wisconsin, steps into February, the average high-temperature holds at a still freezing cold 21.9°F (-5.6°C), hinting at a minor fluctuation from the prior month. Weather in February »Weather in March
March, the first month of the spring in Grantsburg, is an icy month, with an average temperature fluctuating between 22.8°F (-5.1°C) and 36.9°F (2.7°C). The changeover to March signals a significant increase in the average high-temperature, rising from a subzero cold 21.9°F (-5.6°C) in February to a wintry 36.9°F (2.7°C). Weather in March »Weather in April
April in Grantsburg, Wisconsin, is a fresh spring month, with an average temperature fluctuating between 34.3°F (1.3°C) and 50.4°F (10.2°C). April brings an increase in the average high-temperature, progressing from a wintry 36.9°F (2.7°C) in March to a fresh 50.4°F (10.2°C). Weather in April »Weather in May
May, the last month of the spring in Grantsburg, is an enjoyable month, with temperature in the range of an average high of 64.8°F (18.2°C) and an average low of 46°F (7.8°C). May indicates a noticeable escalation in the average high-temperature, moving up from a cool 50.4°F (10.2°C) in April to an enjoyable 64.8°F (18.2°C). Weather in May »Weather in June
June, the first month of the summer in Grantsburg, is a warm month, with an average temperature ranging between max 73.6°F (23.1°C) and min 55°F (12.8°C). The commencement of June sees a minor shift in the average high-temperature, moving from a comfortable 64.8°F (18.2°C) in May to a warm 73.6°F (23.1°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Grantsburg, Wisconsin, with an average temperature ranging between max 78.8°F (26°C) and min 59.7°F (15.4°C). With average high and low temperatures of 78.8°F (26°C) and 59.7°F (15.4°C) respectively, July is Grantsburg's warmest month. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Grantsburg, Wisconsin, with an average temperature fluctuating between 76.8°F (24.9°C) and 57.7°F (14.3°C). August experiences an average high-temperature of a still warm 76.8°F (24.9°C), barely different from July's 78.8°F (26°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Grantsburg, Wisconsin, with an average temperature fluctuating between 69.3°F (20.7°C) and 50.7°F (10.4°C). September ushers in a minor alteration in Grantsburg's climate, with the average high-temperature moving from August's moderately hot 76.8°F (24.9°C) to a pleasant 69.3°F (20.7°C). Weather in September »Weather in October
October, like September, in Grantsburg, Wisconsin, is a cool autumn month, with an average temperature varying between 53.1°F (11.7°C) and 39°F (3.9°C). As Grantsburg transitions into October, the average high-temperature shows a marked reduction, decreasing from a pleasant 69.3°F (20.7°C) in September to a fresh 53.1°F (11.7°C). Weather in October »Weather in November
November, the last month of the autumn in Grantsburg, is also a wintry month, with an average temperature ranging between max 38.1°F (3.4°C) and min 26.1°F (-3.3°C). As November arrives, a noticeable drop in the average high-temperature is witnessed, moving from a fresh 53.1°F (11.7°C) in October to a wintry 38.1°F (3.4°C). Weather in November »Weather in December
December, the first month of the winter in Grantsburg, is still a freezing cold month, with an average temperature ranging between max 23.4°F (-4.8°C) and min 13.1°F (-10.5°C). The arrival of December brings a significant change in Grantsburg's weather, with average high-temperatures dropping from November's icy 38.1°F (3.4°C) to a freezing cold 23.4°F (-4.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Grantsburg, WI
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18°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 (4.8°F).
Average pressure
Grantsburg, WI
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Grantsburg, WI
- Average wind speed in January:
8.4mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.6mph - Average wind speed in April:
9.3mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.8mph - Average wind speed in October:
8.6mph - Average wind speed in November:
8.6mph - Average wind speed in December:
8.3mph
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 (6.7mph).
Average humidity
Grantsburg, WI
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (74%).
Average rainfall
Grantsburg, WI
- Average rainfall in January:
0.55" - Average rainfall in February:
0.79" - Average rainfall in March:
1.26" - Average rainfall in April:
2.17" - Average rainfall in May:
2.87" - Average rainfall in June:
3.39"
- Average rainfall in July:
2.6" - Average rainfall in August:
2.05" - Average rainfall in September:
1.73" - Average rainfall in October:
1.93" - Average rainfall in November:
1.06" - Average rainfall in December:
1.26"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Grantsburg, WI
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
3.2 days - Average rainfall days in March:
9.5 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
16.7 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12.3 days - Average rainfall days in November:
7 days - Average rainfall days in December:
4.1 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is January (2.8 days).
Average snowfall
Grantsburg, WI
- Average snowfall in January:
3.54" - Average snowfall in February:
4.37" - Average snowfall in March:
2.83" - Average snowfall in April:
2.83" - Average snowfall in May:
0.47" - Average snowfall in June:
0"
The month with the highest snowfall is December (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Grantsburg, WI
- Average snowfall days in January:
15.8 days - Average snowfall days in February:
13.3 days - Average snowfall days in March:
9.6 days - Average snowfall days in April:
5.9 days - Average snowfall days in May:
0.8 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:
2.6 days - Average snowfall days in November:
8.5 days - Average snowfall days in December:
14.1 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Grantsburg, WI
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 42min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
2h and 48min - Average sunshine in February:
3h and 6min - Average sunshine in March:
5h and 0min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 36min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 30min - Average sunshine in December:
3h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days
Grantsburg, WI
- Average sunshine days in January:
15.6 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
10.1 days
- Average sunshine days in July:
13.7 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
16.5 days - Average sunshine days in December:
15.4 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index
Grantsburg, WI
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Grantsburg, WI
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Grantsburg, WI
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





