Climate and monthly weather forecastPort Arthur, WI
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Port Arthur, Wisconsin, with an average temperature fluctuating between 5.4°F (-14.8°C) and 18.1°F (-7.7°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 18.1°F (-7.7°C) and a low of 5.4°F (-14.8°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Port Arthur, Wisconsin, with an average temperature varying between 22.5°F (-5.3°C) and 8.4°F (-13.1°C). In Port Arthur, February's average high-temperature stands at a still subzero cold 22.5°F (-5.3°C), closely related to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Port Arthur, is a wintry month, with an average temperature fluctuating between 36.9°F (2.7°C) and 21.7°F (-5.7°C). Witnessing a clear upsurge, the average high-temperature during March escalates from February's freezing cold 22.5°F (-5.3°C) to a wintry 36.9°F (2.7°C). Weather in March »Weather in April
April is a chilly spring month in Port Arthur, Wisconsin, with an average temperature fluctuating between 32.5°F (0.3°C) and 49.6°F (9.8°C). April's onset brings a temperature rise, moving from a wintry 36.9°F (2.7°C) in March to a chilly 49.6°F (9.8°C). Weather in April »Weather in May
May, the last month of the spring in Port Arthur, is a comfortable month, with an average temperature varying between 64.4°F (18°C) and 44.2°F (6.8°C). May brings with it a considerable temperature increase, with average high-temperatures rising from April's chilly 49.6°F (9.8°C) to an enjoyable 64.4°F (18°C). Weather in May »Weather in June
June, the first month of the summer in Port Arthur, is a warm month, with an average temperature fluctuating between 74.3°F (23.5°C) and 53.4°F (11.9°C). June's arrival coincides with a temperature rise, moving from May's comfortable 64.4°F (18°C) to a warm 74.3°F (23.5°C). Weather in June »Weather in July
July, like June, in Port Arthur, Wisconsin, is another warm summer month, with an average temperature fluctuating between 78.8°F (26°C) and 58.5°F (14.7°C). July is Port Arthur's warmest month, registering average high temperatures of 78.8°F (26°C) and lows of 58.5°F (14.7°C). Weather in July »Weather in August
August, the last month of the summer in Port Arthur, is also a moderately hot month, with an average temperature varying between 76.8°F (24.9°C) and 56.3°F (13.5°C). The transition into August shows a subtle variation to a still warm 76.8°F (24.9°C) from July's 78.8°F (26°C) in the average high-temperature. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Port Arthur, Wisconsin, with an average temperature varying between 49.1°F (9.5°C) and 68.9°F (20.5°C). September reveals a small adjustment in temperature, transitioning from an average high of a warm 76.8°F (24.9°C) in August to an agreeable 68.9°F (20.5°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Port Arthur, Wisconsin, with an average temperature ranging between min 38.3°F (3.5°C) and max 52.7°F (11.5°C). Port Arthur's October weather is marked by a distinct drop in high-temperatures, declining from a pleasant 68.9°F (20.5°C) in September to a cool 52.7°F (11.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Port Arthur, Wisconsin, with temperature in the range of an average high of 37.6°F (3.1°C) and an average low of 25.9°F (-3.4°C). Port Arthur's transition into November is marked by a clear drop in the average high-temperature, receding from a cool 52.7°F (11.5°C) in October to a wintry 37.6°F (3.1°C). Weather in November »Weather in December
December, the first month of the winter in Port Arthur, is also a subzero cold month, with an average temperature ranging between max 23.9°F (-4.5°C) and min 13.1°F (-10.5°C). Setting in of December comes with a decrease in the average high-temperature, moving from an icy 37.6°F (3.1°C) in November to a subzero cold 23.9°F (-4.5°C). Weather in December »Updated: Jul 15, 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
The coldest period tends to be January, when average temperatures fluctuate between a high of 18.1°F (-7.7°C) and a low of 5.4°F (-14.8°C).
January and February, with an average relative humidity of 92%, are most humid months.
The month with the least rainfall is January, when the rain falls for 3.3 days and typically collects 0.98" (25mm) of precipitation.
In Port Arthur, during the entire year, the rain falls for 128.5 days and collects up to 23.94" (608mm) of precipitation.
January through May, October through December are months with snowfall.
In Port Arthur, during the entire year, snow falls for 88.7 days and aggregates up to 35.87" (911mm) of snow.
The months with the least sunshine are January and February, with an average of 2.6h of sunshine.
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 May, with an average relative humidity of 75%.
May through August, with an average maximum UV index of 5, are months with the highest UV index.
The month with the most rainfall is June, when the rain falls for 16.5 days and typically aggregates up to 3.43" (87mm) of precipitation.
June through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 36min of daylight.
In Port Arthur, July records the average highest temperatures, peaking at 78.8°F (26°C) and reaching a low of 58.5°F (14.7°C).
With an average of 9.6h of sunshine, July has the most sunshine of the year.
December is the month with the most snowfall. Snow falls for 16.8 days and accumulates 7.28" (185mm) of snow.
The month with the shortest days in Port Arthur is December, with an average of 8h and 48min of daylight.
Average temperature
Port Arthur, 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 (18.1°F).
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure
Port Arthur, 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:
29.97"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.05"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 (29.89"Hg).
Average wind speed
Port Arthur, WI
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.8mph - Average wind speed in May:
8mph - Average wind speed in June:
7.3mph
- 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:
8.3mph - Average wind speed in November:
8.7mph - Average wind speed in December:
8.4mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Port Arthur, WI
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (75%).
Average rainfall
Port Arthur, WI
- Average rainfall in January:
0.98" - Average rainfall in February:
1.14" - Average rainfall in March:
1.38" - Average rainfall in April:
2.8" - Average rainfall in May:
2.83" - Average rainfall in June:
3.43"
- Average rainfall in July:
2.24" - Average rainfall in August:
2.36" - Average rainfall in September:
1.61" - Average rainfall in October:
2.32" - Average rainfall in November:
1.26" - 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 January (0.98").
Average rainfall days
Port Arthur, WI
- Average rainfall days in January:
3.3 days - Average rainfall days in February:
2.9 days - Average rainfall days in March:
9.2 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
16.5 days
- Average rainfall days in July:
15.5 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
4.3 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.9 days).
Average snowfall
Port Arthur, WI
- Average snowfall in January:
5.91" - Average snowfall in February:
7.09" - Average snowfall in March:
4.25" - Average snowfall in April:
4.84" - Average snowfall in May:
1.02" - Average snowfall in June:
0"
The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Port Arthur, WI
- Average snowfall days in January:
19.4 days - Average snowfall days in February:
18.3 days - Average snowfall days in March:
12.5 days - Average snowfall days in April:
7.6 days - Average snowfall days in May:
0.7 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:
3.1 days - Average snowfall days in November:
10.3 days - Average snowfall days in December:
16.8 days
The month with the highest number of snowfall days is January (19.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Port Arthur, 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:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 18min - 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:
2h and 36min - Average sunshine in February:
2h and 36min - Average sunshine in March:
4h and 42min - Average sunshine in April:
6h and 36min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 36min - Average sunshine in August:
9h and 6min - Average sunshine in September:
8h and 6min - Average sunshine in October:
4h and 42min - Average sunshine in November:
4h and 12min - Average sunshine in December:
2h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days
Port Arthur, WI
- Average sunshine days in January:
12.2 days - Average sunshine days in February:
10 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
10 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
16 days - Average sunshine days in November:
14.1 days - Average sunshine days in December:
12.6 days
The month with the most sunshine days is October (16 days).
The months with the least sunshine days are February and April (10 days).
Average UV index
Port Arthur, WI
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Port Arthur, WI
The months with the most cloud cover are January and February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility
Port Arthur, WI
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).
