Climate and monthly weather forecastSister Bay, WI
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Sister Bay, Wisconsin, with an average temperature varying between 18.1°F (-7.7°C) and 25.2°F (-3.8°C). January is the month that records the lowest temperatures, with averages ranging from a high of 25.2°F (-3.8°C) to a low of 18.1°F (-7.7°C). Weather in January »Weather in February
February, the last month of the winter in Sister Bay, is also a subzero cold month, with an average temperature varying between 19°F (-7.2°C) and 25.9°F (-3.4°C). A minor adjustment in Sister Bay's average high-temperature is noted with the start of February, touching a still subzero cold 25.9°F (-3.4°C) from January's 25.2°F (-3.8°C). Weather in February »Weather in March
The first month of the spring, March, is a cold month in Sister Bay, Wisconsin, with an average temperature ranging between max 34°F (1.1°C) and min 27°F (-2.8°C). March's onset brings a minor rise in the average high-temperature, moving from a subzero cold 25.9°F (-3.4°C) in February to a cold 34°F (1.1°C). Weather in March »Weather in April
April, like March, in Sister Bay, Wisconsin, is a wintry spring month, with an average temperature varying between 35.1°F (1.7°C) and 41.7°F (5.4°C). April comes with a subtle rise, with the average high-temperature adjusting from 34°F (1.1°C) in March to a still icy 41.7°F (5.4°C). Weather in April »Weather in May
The last month of the spring, May, is a cool month in Sister Bay, Wisconsin, with an average temperature varying between 42.6°F (5.9°C) and 50°F (10°C). May's arrival coincides with a marginal rise in the average high-temperature, moving from April's cold 41.7°F (5.4°C) to a cool 50°F (10°C). Weather in May »Weather in June
June, the first month of the summer in Sister Bay, is a moderate month, with an average temperature varying between 50.9°F (10.5°C) and 57.7°F (14.3°C). The coming of June brings a minor shift in Sister Bay's weather, with average high-temperatures adjusting from May's cool 50°F (10°C) to a refreshing 57.7°F (14.3°C). Weather in June »Weather in July
July in Sister Bay, Wisconsin, is an agreeable summer month, with temperature in the range of an average high of 68°F (20°C) and an average low of 60.6°F (15.9°C). The beginning of July signals a rise in the average high-temperature, moving from a mild 57.7°F (14.3°C) in June to a pleasant 68°F (20°C). Weather in July »Weather in August
The last month of the summer, August, is also an agreeable month in Sister Bay, Wisconsin, with an average temperature varying between 69.6°F (20.9°C) and 63°F (17.2°C). Sister Bay's August weather, with an average high temperature of 69.6°F (20.9°C) and an average low temperature of 63°F (17.2°C), tends to be the warmest of the year. Weather in August »Weather in September
September, the first month of the autumn in Sister Bay, is also an enjoyable month, with an average temperature varying between 57.6°F (14.2°C) and 64.4°F (18°C). The arrival of September coincides with an average high-temperature of an enjoyable 64.4°F (18°C), indicating a minimal shift from August's 69.6°F (20.9°C). Weather in September »Weather in October
October, like September, in Sister Bay, Wisconsin, is another fresh autumn month, with an average temperature ranging between min 47.3°F (8.5°C) and max 52.9°F (11.6°C). In October, the average high-temperature decreases from an enjoyable 64.4°F (18°C) in September to a cool 52.9°F (11.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also an icy month in Sister Bay, Wisconsin, with an average temperature varying between 35.4°F (1.9°C) and 41.7°F (5.4°C). In the transition to November, Sister Bay observes a drop in the average high-temperature, moving from a fresh 52.9°F (11.6°C) in October to a wintry 41.7°F (5.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Sister Bay, Wisconsin, with temperature in the range of an average low of 25.5°F (-3.6°C) and an average high of 31.1°F (-0.5°C). As Sister Bay enters December, the average high-temperature decreases from the a wintry 41.7°F (5.4°C) of November to a subzero cold 31.1°F (-0.5°C). Weather in December »Updated: Feb 14, 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
January tends to be the coldest month, with temperatures averaging a daily high of 25.2°F (-3.8°C) and a low of 18.1°F (-7.7°C).
January and June, with an average relative humidity of 84%, are most humid months in Sister Bay, Wisconsin.
January and February are months with the least rain when the rain falls for 5.6 days and typically aggregates up to 1.38" (35mm) of rain.
Throughout the year, in Sister Bay, Wisconsin, there are 141.7 rainfall days, and 26.93" (684mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
In Sister Bay, during the entire year, snow falls for 62.3 days and aggregates up to 15.83" (402mm) of snow.
January has the least sunshine of the year, with an average of 3.1h of sunshine.
The months with the lowest UV index in Sister Bay, Wisconsin, are January, March and December, with an average maximum UV index of 1.
The month with the most snowfall is February, when snow falls for 13.6 days and typically aggregates up to 4.49" (114mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Sister Bay, Wisconsin, 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.
June through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 36min of daylight.
July has the most sunshine of the year, with an average of 10.6h of sunshine.
July and August, with an average maximum UV index of 5, are months with the highest UV index in Sister Bay.
August tends to be the warmest month in Sister Bay, Wisconsin, with temperatures averaging a daily high of 69.6°F (20.9°C) and a low of 63°F (17.2°C).
October is the month with the most rainfall. Rain falls for 15.2 days and accumulates 3.07" (78mm) of precipitation.
With an average relative humidity of 76%, November is the least humid month.
The month with the shortest days is December, with an average of 8h and 48min of daylight.
Average temperature
Sister Bay, WI
The warmest month (with the highest average high temperature) is August (69.6°F).
The month with the lowest average high temperature is January (25.2°F).
The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure
Sister Bay, WI
- Average pressure in January:
30.04"Hg - Average pressure in February:
30.06"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:
29.94"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.04"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
Sister Bay, WI
- Average wind speed in January:
15.1mph - Average wind speed in February:
14.2mph - Average wind speed in March:
12.9mph - Average wind speed in April:
13.2mph - Average wind speed in May:
11mph - Average wind speed in June:
9.6mph
- Average wind speed in July:
9.6mph - Average wind speed in August:
10.3mph - Average wind speed in September:
12mph - Average wind speed in October:
14.4mph - Average wind speed in November:
15.3mph - Average wind speed in December:
15.5mph
The windiest month (with the highest average wind speed) is December (15.5mph).
The calmest months (with the lowest average wind speed) are June and July (9.6mph).
Average humidity
Sister Bay, WI
The months with the highest relative humidity are January and June (84%).
The month with the lowest relative humidity is November (76%).
Average rainfall
Sister Bay, WI
- Average rainfall in January:
1.38" - Average rainfall in February:
1.38" - Average rainfall in March:
1.89" - Average rainfall in April:
2.56" - Average rainfall in May:
2.8" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.24" - Average rainfall in September:
2.24" - Average rainfall in October:
3.07" - Average rainfall in November:
1.73" - Average rainfall in December:
2.09"
The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are January and February (1.38").
Average rainfall days
Sister Bay, WI
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
11 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
14.5 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
15.2 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is February (4.8 days).
Average snowfall
Sister Bay, WI
- Average snowfall in January:
3.19" - Average snowfall in February:
4.49" - Average snowfall in March:
2.48" - Average snowfall in April:
1.1" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Sister Bay, WI
- Average snowfall days in January:
14.6 days - Average snowfall days in February:
13.6 days - Average snowfall days in March:
10.2 days - Average snowfall days in April:
4.3 days - Average snowfall days in May:
0.5 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:
0.5 days - Average snowfall days in November:
6.2 days - Average snowfall days in December:
12.4 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Sister Bay, 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 30min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- 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:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
3h and 6min - Average sunshine in February:
3h and 24min - Average sunshine in March:
5h and 24min - Average sunshine in April:
7h and 48min - Average sunshine in May:
9h and 18min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 24min - Average sunshine in November:
4h and 30min - Average sunshine in December:
3h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days
Sister Bay, WI
- Average sunshine days in January:
8.3 days - Average sunshine days in February:
9.4 days - Average sunshine days in March:
12.1 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
12.1 days - Average sunshine days in November:
12.3 days - Average sunshine days in December:
10.3 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is January (8.3 days).
Average UV index
Sister Bay, WI
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover
Sister Bay, WI
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility
Sister Bay, WI
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
