Climate and monthly weather forecastBoulder Junction, WI
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Boulder Junction, Wisconsin, with temperature in the range of an average high of 18.5°F (-7.5°C) and an average low of 7.9°F (-13.4°C). In Boulder Junction, the lowest average temperatures are observed in January, with a high of 18.5°F (-7.5°C) and a low of 7.9°F (-13.4°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Boulder Junction, Wisconsin, with temperature in the range of an average high of 21.7°F (-5.7°C) and an average low of 9.7°F (-12.4°C). As Boulder Junction welcomes February, the average high-temperature stabilizes at a still freezing cold 21.7°F (-5.7°C), showing little deviation from January's 18.5°F (-7.5°C). Weather in February »Weather in March
March, the first month of the spring in Boulder Junction, is a cold month, with an average temperature ranging between min 20.7°F (-6.3°C) and max 34.2°F (1.2°C). With the onset of March, Boulder Junction sees a temperature rise, with the average high-temperature moving from February's subzero cold 21.7°F (-5.7°C) to an icy 34.2°F (1.2°C). Weather in March »Weather in April
April in Boulder Junction, Wisconsin, is a frosty spring month, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 30.6°F (-0.8°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a cold 34.2°F (1.2°C) to a frosty 46°F (7.8°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Boulder Junction, Wisconsin, with an average temperature fluctuating between 42.4°F (5.8°C) and 63.3°F (17.4°C). May's arrival is marked by a significant increase in the average high-temperature, moving from a chilly 46°F (7.8°C) in April to a refreshing 63.3°F (17.4°C). Weather in May »Weather in June
June, the first month of the summer in Boulder Junction, is a pleasant month, with an average temperature varying between 72.1°F (22.3°C) and 51.4°F (10.8°C). The start of June signals a slight increase in the average high-temperature, moving from a comfortable 63.3°F (17.4°C) in May to an agreeable 72.1°F (22.3°C). Weather in June »Weather in July
July in Boulder Junction, Wisconsin, is a moderately hot summer month, with temperature in the range of an average high of 77°F (25°C) and an average low of 56.3°F (13.5°C). With average temperatures fluctuating between a high of 77°F (25°C) and a low of 56.3°F (13.5°C), July stands out as the warmest month. Weather in July »Weather in August
The last month of the summer, August, is another warm month in Boulder Junction, Wisconsin, with an average temperature ranging between max 74.7°F (23.7°C) and min 55°F (12.8°C). Transitioning from July to August, Boulder Junction observes an average high-temperature of a still warm 74.7°F (23.7°C), differing subtly from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Boulder Junction, is still a comfortable month, with temperature in the range of an average high of 66.9°F (19.4°C) and an average low of 48.6°F (9.2°C). With the arrival of September, Boulder Junction notices a mild change in the average high-temperature, sliding from August's moderately hot 74.7°F (23.7°C) to a comfortable 66.9°F (19.4°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Boulder Junction, Wisconsin, with an average temperature ranging between max 50.2°F (10.1°C) and min 38.3°F (3.5°C). Boulder Junction's transition into October is marked by a distinct drop in the average high-temperature, reducing from a refreshing 66.9°F (19.4°C) in September to a fresh 50.2°F (10.1°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Boulder Junction, Wisconsin, with an average temperature varying between 36°F (2.2°C) and 26.1°F (-3.3°C). Boulder Junction's November weather comes with a decrease in average high-temperatures, moving from a cool 50.2°F (10.1°C) in October to an icy 36°F (2.2°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Boulder Junction, Wisconsin, with an average temperature varying between 15.1°F (-9.4°C) and 24.1°F (-4.4°C). Boulder Junction's progression into December includes a drop in the average high-temperature, from a cold 36°F (2.2°C) in November to a freezing cold 24.1°F (-4.4°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Boulder Junction, WI
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (18.5°F).
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure
Boulder Junction, WI
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.06"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Boulder Junction, WI
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8mph - Average wind speed in April:
8.4mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.5mph - Average wind speed in October:
8.3mph - Average wind speed in November:
8.7mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is November (8.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity
Boulder Junction, WI
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (71%).
Average rainfall
Boulder Junction, WI
- Average rainfall in January:
1.38" - Average rainfall in February:
1.42" - Average rainfall in March:
1.61" - Average rainfall in April:
2.64" - Average rainfall in May:
2.95" - Average rainfall in June:
2.64"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days
Boulder Junction, WI
- Average rainfall days in January:
3.2 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
7.8 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
15.7 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
15.4 days - Average rainfall days in September:
14.2 days - Average rainfall days in October:
13.2 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
5.3 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (2.7 days).
Average snowfall
Boulder Junction, WI
- Average snowfall in January:
10.2" - Average snowfall in February:
9.84" - Average snowfall in March:
8.03" - Average snowfall in April:
8.5" - Average snowfall in May:
0.94" - Average snowfall in June:
0"
The month with the highest snowfall is December (11.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Boulder Junction, WI
- Average snowfall days in January:
26.7 days - Average snowfall days in February:
22.6 days - Average snowfall days in March:
18 days - Average snowfall days in April:
11.5 days - Average snowfall days in May:
1.8 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:
0.1 days - Average snowfall days in October:
6.1 days - Average snowfall days in November:
16.9 days - Average snowfall days in December:
23.8 days
The month with the highest number of snowfall days is January (26.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Boulder Junction, WI
- Average daylight in January:
9h and 6min - 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:
1h and 54min - Average sunshine in February:
2h and 0min - Average sunshine in March:
4h and 12min - Average sunshine in April:
6h and 30min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 6min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 6min - Average sunshine in September:
7h and 54min - Average sunshine in October:
4h and 24min - Average sunshine in November:
3h and 24min - Average sunshine in December:
2h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days
Boulder Junction, WI
- Average sunshine days in January:
5 days - Average sunshine days in February:
5.8 days - Average sunshine days in March:
8.5 days - Average sunshine days in April:
10.1 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
12.1 days - Average sunshine days in September:
13.4 days - Average sunshine days in October:
12.1 days - Average sunshine days in November:
8.7 days - Average sunshine days in December:
6.5 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is January (5 days).
Average UV index
Boulder Junction, 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, March, November and December (UV index 1).
Average cloud cover
Boulder Junction, WI
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility
Boulder Junction, WI
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January, February, March and December (4mi).





