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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 another subzero cold winter month in Sussex, Wisconsin, with an average temperature fluctuating between 25.2°F (-3.8°C) and 13.6°F (-10.2°C). Sussex, Wisconsin, witnesses the coldest weather in January, with temperatures averaging a high of 25.2°F (-3.8°C) and a low of 13.6°F (-10.2°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Sussex, Wisconsin, with an average temperature ranging between min 16.5°F (-8.6°C) and max 28.2°F (-2.1°C). The commencement of February brings an average high-temperature of a still freezing cold 28.2°F (-2.1°C), marking an inconsequential divergence from January. Weather in February »
Weather in March
The first month of the spring, March, is an icy month in Sussex, Wisconsin, with temperature in the range of an average high of 40.6°F (4.8°C) and an average low of 27.9°F (-2.3°C). Sussex's March weather brings a rise in high-temperatures, moving from a subzero cold 28.2°F (-2.1°C) in February to an icy 40.6°F (4.8°C). Weather in March »
Weather in April
April is a fresh spring month in Sussex, Wisconsin, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 51.4°F (10.8°C). The average high-temperature increases in April, moving from an icy 40.6°F (4.8°C) in March to a cool 51.4°F (10.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Sussex, Wisconsin, with an average temperature ranging between min 47.3°F (8.5°C) and max 63.5°F (17.5°C). The shift from April to May brings an increase in the average high-temperature, moving from a fresh 51.4°F (10.8°C) to a refreshing 63.5°F (17.5°C). Weather in May »
Weather in June
June, the first month of the summer in Sussex, is an agreeable month, with an average temperature varying between 56.5°F (13.6°C) and 72.5°F (22.5°C). June's onset is marked by a temperature increase, moving from a refreshing 63.5°F (17.5°C) in May to an agreeable 72.5°F (22.5°C). Weather in June »
Weather in July
July is a moderately hot summer month in Sussex, Wisconsin, with an average temperature fluctuating between 78.1°F (25.6°C) and 62.4°F (16.9°C). July, with its high-temperature average of 78.1°F (25.6°C) and a low-temperature average of 62.4°F (16.9°C), is the warmest month. Weather in July »
Weather in August
August, the last month of the summer in Sussex, is another warm month, with an average temperature varying between 61.2°F (16.2°C) and 76.6°F (24.8°C). The commencement of August records an average high-temperature of a still warm 76.6°F (24.8°C), barely varying from July's 78.1°F (25.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Sussex, Wisconsin, with an average temperature ranging between min 54.5°F (12.5°C) and max 70.5°F (21.4°C). Sussex experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 76.6°F (24.8°C) in August to an agreeable 70.5°F (21.4°C). Weather in September »
Weather in October
October, the same as September, in Sussex, Wisconsin, is another refreshing autumn month, with an average temperature varying between 57.2°F (14°C) and 43.3°F (6.3°C). October suggests a modest reduction in the average high-temperature, shifting from a pleasant 70.5°F (21.4°C) in September to a mild 57.2°F (14°C). Weather in October »
Weather in November
November, the last month of the autumn in Sussex, is also a frosty month, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 31.1°F (-0.5°C). In Sussex, the average high-temperature in November decreases from a moderate 57.2°F (14°C) in October to a chilly 43.3°F (6.3°C). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Sussex, Wisconsin, with an average temperature varying between 31.3°F (-0.4°C) and 21.7°F (-5.7°C). Sussex's weather in December involves a decrease in the average high-temperature, moving down from November's frosty 43.3°F (6.3°C) to a freezing cold 31.3°F (-0.4°C). Weather in December »
Updated: Jun 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
What month is the coldest?
January is the month when Sussex experiences its coldest temperatures, averaging a high of 25.2°F (-3.8°C) and a low of 13.6°F (-10.2°C).
What is the most humid month?
January is the most humid month, with an average relative humidity of 87%.
How much does it rain?
Throughout the year, there are 149.2 rainfall days, and 28.54" (725mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
What is the snowiest month in Sussex?
January is the month with the most snowfall in Sussex. Snow falls for 15.4 days and accumulates 5.43" (138mm) of snow.
How much does it snow?
Throughout the year, there are 58.7 snowfall days, and 20.47" (520mm) of snow is accumulated.
What is the month with the least sunshine in Sussex?
With an average of 3.5h of sunshine, January has the least sunshine of the year in Sussex.
What is the month with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
What is the driest month?
The month with the least rainfall is February, when the rain falls for 5.3 days and typically collects 1.46" (37mm) of precipitation.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Sussex, 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.
What is the least humid month?
April and October, with an average relative humidity of 77%, are the least humid months.
What is the wettest month?
June is the month with the most rainfall. Rain falls for 16.9 days and accumulates 3.43" (87mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 18min of daylight, June has the longest days of the year.
When is the highest UV index?
With an average maximum UV index of 6, June is the month with the highest UV index.
What time of the year is the hottest?
Sussex's warmest weather arrives in July, when temperatures average a high of 78.1°F (25.6°C) and a low of 62.4°F (16.9°C).
What month has the most sunshine?
The month with the most sunshine is August, with an average of 10.2h of sunshine.
What is the month with the shortest days in Sussex?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Sussex, WI
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure
Sussex, WI
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Sussex, WI
- Average wind speed in January:
10.5mph - Average wind speed in February:
10.4mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.6mph - 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:
9.3mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity
Sussex, WI
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall
Sussex, WI
- Average rainfall in January:
1.54" - Average rainfall in February:
1.46" - Average rainfall in March:
1.81" - Average rainfall in April:
3.15" - Average rainfall in May:
3.11" - Average rainfall in June:
3.43"
- Average rainfall in July:
3.39" - Average rainfall in August:
2.76" - Average rainfall in September:
1.97" - Average rainfall in October:
2.83" - Average rainfall in November:
1.54" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days
Sussex, WI
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
16.2 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall
Sussex, WI
- Average snowfall in January:
5.43" - Average snowfall in February:
4.65" - Average snowfall in March:
2.24" - Average snowfall in April:
1.61" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Sussex, WI
- Average snowfall days in January:
15.4 days - Average snowfall days in February:
13 days - Average snowfall days in March:
7.7 days - Average snowfall days in April:
3.1 days - Average snowfall days in May:
0.2 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:
0.9 days - Average snowfall days in November:
5.8 days - Average snowfall days in December:
12.6 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Sussex, WI
- Average daylight in January:
9h and 2min - 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 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Sussex, WI
- Average sunshine days in January:
12.1 days - Average sunshine days in February:
10.5 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
11.5 days - Average sunshine days in September:
15 days - Average sunshine days in October:
14.1 days - Average sunshine days in November:
15.9 days - Average sunshine days in December:
13.6 days
The month with the most sunshine days is November (15.9 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index
Sussex, WI
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Sussex, WI
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
Sussex, 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).
Sussex, Wisconsin, USA
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