Climate and monthly weather forecastPortage, WI
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Portage, Wisconsin, with an average temperature ranging between min 10.6°F (-11.9°C) and max 22.8°F (-5.1°C). The month of January, characterized by an average high of 22.8°F (-5.1°C) and a low of 10.6°F (-11.9°C), is recognized as the coldest. Weather in January »Weather in February
February, the last month of the winter in Portage, is also a subzero cold month, with an average temperature ranging between max 26.2°F (-3.2°C) and min 13.1°F (-10.5°C). Welcoming February, Portage notes an average high-temperature of a still subzero cold 26.2°F (-3.2°C), nearly consistent with January's 22.8°F (-5.1°C). Weather in February »Weather in March
The first month of the spring, March, is a cold month in Portage, Wisconsin, with temperature in the range of an average high of 41.2°F (5.1°C) and an average low of 26.1°F (-3.3°C). With the onset of March, Portage's weather experiences a distinct temperature rise, moving from a freezing cold 26.2°F (-3.2°C) in February to an icy 41.2°F (5.1°C). Weather in March »Weather in April
April is a cool spring month in Portage, Wisconsin, with an average temperature ranging between max 53.2°F (11.8°C) and min 36.7°F (2.6°C). Portage's weather in April presents a rise in the average high-temperature, moving from an icy 41.2°F (5.1°C) in March to a fresh 53.2°F (11.8°C). Weather in April »Weather in May
May, the last month of the spring in Portage, is a refreshing month, with an average temperature fluctuating between 65.8°F (18.8°C) and 47.8°F (8.8°C). As April transitions into May, a change in temperatures is observed, with average highs moving from a fresh 53.2°F (11.8°C) to a comfortable 65.8°F (18.8°C). Weather in May »Weather in June
June, the first month of the summer in Portage, is a moderately hot month, with an average temperature ranging between min 56.8°F (13.8°C) and max 74.7°F (23.7°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's refreshing 65.8°F (18.8°C) to a warm 74.7°F (23.7°C). Weather in June »Weather in July
July, like June, in Portage, Wisconsin, is another warm summer month, with an average temperature varying between 61°F (16.1°C) and 79°F (26.1°C). July brings the highest temperatures, with an average high of 79°F (26.1°C) and an average low of 61°F (16.1°C). Weather in July »Weather in August
August, the last month of the summer in Portage, is also a moderately hot month, with an average temperature fluctuating between 77.7°F (25.4°C) and 59.2°F (15.1°C). August welcomes an average high-temperature of a still moderately hot 77.7°F (25.4°C), not much different from the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Portage, is also an agreeable month, with an average temperature varying between 51.3°F (10.7°C) and 71.1°F (21.7°C). Portage's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 77.7°F (25.4°C) to an agreeable 71.1°F (21.7°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Portage, Wisconsin, with temperature in the range of an average low of 41.4°F (5.2°C) and an average high of 56.8°F (13.8°C). A change in temperatures is noted as September gives way to October, with average highs reducing from a pleasant 71.1°F (21.7°C) to a refreshing 56.8°F (13.8°C). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Portage, Wisconsin, with an average temperature fluctuating between 42.1°F (5.6°C) and 29.8°F (-1.2°C). In November, the average high-temperature decreases considerably from a mild 56.8°F (13.8°C) in October to a wintry 42.1°F (5.6°C). Weather in November »Weather in December
December, the first month of the winter in Portage, is also a subzero cold month, with an average temperature fluctuating between 19°F (-7.2°C) and 29.1°F (-1.6°C). December's arrival coincides with a drop in the average high-temperature, decreasing from November's wintry 42.1°F (5.6°C) to a subzero cold 29.1°F (-1.6°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 is the month when Portage experiences its coldest temperatures, averaging a high of 22.8°F (-5.1°C) and a low of 10.6°F (-11.9°C).
With an average relative humidity of 89%, January is the most humid month.
January is the month with the least rainfall. Rain falls for 3.5 days and accumulates 1.06" (27mm) of precipitation.
Throughout the year, in Portage, Wisconsin, there are 128.9 rainfall days, and 27.68" (703mm) of precipitation is accumulated.
Months with snowfall in Portage are January through May, October through December.
Throughout the year, in Portage, there are 48.4 snowfall days, and 20.28" (515mm) of snow is accumulated.
The month with the least sunshine in Portage, Wisconsin, is January, with an average of 3.1h of sunshine.
The months with the lowest UV index in Portage, Wisconsin, are January, November and December, with an average maximum UV index of 1.
The month with the most snowfall is February, when snow falls for 10.2 days and typically aggregates up to 4.8" (122mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Portage, 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.
The least humid month is April, with an average relative humidity of 76%.
The month with the most rainfall in Portage is June, when the rain falls for 16.8 days and typically aggregates up to 3.82" (97mm) of precipitation.
In Portage, Wisconsin, snow does not fall in June through September.
With an average of 15h and 24min of daylight, June has the longest days of the year in Portage, Wisconsin.
The month of July sees the average highest temperatures in Portage, Wisconsin, reaching 79°F (26.1°C) at the peak and 61°F (16.1°C) at the low.
With an average of 9.7h of sunshine, July has the most sunshine of the year.
The month with the highest UV index in Portage is July, with an average maximum UV index of 6.
With an average of 9h and 0min of daylight, December has the shortest days of the year.
Average temperature
Portage, WI
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.8°F).
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure
Portage, WI
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.11"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:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Portage, WI
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.5mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Portage, WI
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Portage, WI
- Average rainfall in January:
1.06" - Average rainfall in February:
1.14" - Average rainfall in March:
1.65" - Average rainfall in April:
2.95" - Average rainfall in May:
3.39" - Average rainfall in June:
3.82"
The wettest month (with the highest rainfall) is June (3.82").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days
Portage, WI
- Average rainfall days in January:
3.5 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12.1 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
4.8 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall
Portage, WI
- Average snowfall in January:
4.41" - Average snowfall in February:
4.8" - Average snowfall in March:
2.32" - Average snowfall in April:
2.64" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Portage, WI
- Average snowfall days in January:
12 days - Average snowfall days in February:
10.2 days - Average snowfall days in March:
6.7 days - Average snowfall days in April:
3.2 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 days - Average snowfall days in November:
4.8 days - Average snowfall days in December:
10.2 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Portage, WI
- Average daylight in January:
9h and 24min - 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 42min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- 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:
6h and 54min - Average sunshine in May:
8h and 12min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 30min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 36min - Average sunshine in December:
3h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days
Portage, WI
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
17.1 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (10.9 days).
Average UV index
Portage, WI
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Portage, WI
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility
Portage, WI
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
