Climate and monthly weather forecastNorwalk, WI
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Norwalk, Wisconsin, with an average temperature fluctuating between 8.2°F (-13.2°C) and 21.4°F (-5.9°C). The coldest month is January, with an average high-temperature of 21.4°F (-5.9°C) and an average low-temperature of 8.2°F (-13.2°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Norwalk, Wisconsin, with temperature in the range of an average high of 25.3°F (-3.7°C) and an average low of 12°F (-11.1°C). An average high-temperature of a still subzero cold 25.3°F (-3.7°C) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »Weather in March
The first month of the spring, March, is an icy month in Norwalk, Wisconsin, with an average temperature ranging between min 25.2°F (-3.8°C) and max 40.1°F (4.5°C). Norwalk witnesses a significant increase in the average high-temperature with the arrival of March, rising from February's freezing cold 25.3°F (-3.7°C) to a wintry 40.1°F (4.5°C). Weather in March »Weather in April
April in Norwalk, Wisconsin, is a fresh spring month, with an average temperature fluctuating between 52.3°F (11.3°C) and 35.2°F (1.8°C). The arrival of April signals an increase in the average high-temperature, moving from a wintry 40.1°F (4.5°C) in March to a fresh 52.3°F (11.3°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Norwalk, Wisconsin, with temperature in the range of an average low of 47.5°F (8.6°C) and an average high of 65.7°F (18.7°C). Norwalk in May sees a temperature change, with average high-temperatures moving from a cool 52.3°F (11.3°C) in April to a refreshing 65.7°F (18.7°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Norwalk, Wisconsin, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 56.7°F (13.7°C). The onset of June brings a temperature shift, with the average high-temperature moving from an enjoyable 65.7°F (18.7°C) in May to a warm 75°F (23.9°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Norwalk, Wisconsin, with an average temperature ranging between min 60.6°F (15.9°C) and max 79.5°F (26.4°C). In Norwalk, the highest average temperatures are observed in July, with a high of 79.5°F (26.4°C) and a low of 60.6°F (15.9°C). Weather in July »Weather in August
August, the last month of the summer in Norwalk, is also a moderately hot month, with an average temperature fluctuating between 58.3°F (14.6°C) and 77.5°F (25.3°C). August brings an average high-temperature of a still warm 77.5°F (25.3°C), showing a slight difference from July's 79.5°F (26.4°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Norwalk, Wisconsin, with an average temperature fluctuating between 70.7°F (21.5°C) and 50.9°F (10.5°C). With the onset of September, Norwalk experiences a modest temperature adjustment, with the average high-temperature gently receding from a moderately hot 77.5°F (25.3°C) in August to a pleasant 70.7°F (21.5°C). Weather in September »Weather in October
October, the same as September, in Norwalk, Wisconsin, is another refreshing autumn month, with an average temperature fluctuating between 39.7°F (4.3°C) and 55.6°F (13.1°C). The start of October signals a considerable reduction in the average high-temperature, receding from a pleasant 70.7°F (21.5°C) in September to a moderate 55.6°F (13.1°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Norwalk, Wisconsin, with temperature in the range of an average low of 28.8°F (-1.8°C) and an average high of 41°F (5°C). The beginning of November signals a clear reduction in the average high-temperature, falling from a moderate 55.6°F (13.1°C) in October to an icy 41°F (5°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Norwalk, Wisconsin, with an average temperature fluctuating between 16.7°F (-8.5°C) and 27.3°F (-2.6°C). With December's arrival, Norwalk's weather changes as the average high-temperature falls from a cold 41°F (5°C) in November to a subzero cold 27.3°F (-2.6°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Norwalk, WI
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (21.4°F).
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure
Norwalk, WI
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.1"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Norwalk, WI
- Average wind speed in January:
9mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.7mph - Average wind speed in April:
9.3mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.5mph - Average wind speed in November:
8.9mph - Average wind speed in December:
8.8mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity
Norwalk, WI
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall
Norwalk, WI
- Average rainfall in January:
0.67" - Average rainfall in February:
0.67" - Average rainfall in March:
1.1" - Average rainfall in April:
1.57" - Average rainfall in May:
2.24" - Average rainfall in June:
2.91"
- Average rainfall in July:
2.13" - Average rainfall in August:
1.85" - Average rainfall in September:
1.65" - Average rainfall in October:
1.46" - Average rainfall in November:
0.91" - Average rainfall in December:
0.94"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.67").
Average rainfall days
Norwalk, WI
- Average rainfall days in January:
3.5 days - Average rainfall days in February:
2.1 days - Average rainfall days in March:
7.8 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
15 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
14.2 days - Average rainfall days in August:
11.6 days - Average rainfall days in September:
10.4 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
5.9 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2.1 days).
Average snowfall
Norwalk, WI
- Average snowfall in January:
3.07" - Average snowfall in February:
3.98" - Average snowfall in March:
1.69" - Average snowfall in April:
2.05" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Norwalk, WI
- Average snowfall days in January:
14.6 days - Average snowfall days in February:
12.3 days - Average snowfall days in March:
8.4 days - Average snowfall days in April:
3 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:
1.5 days - Average snowfall days in November:
6 days - Average snowfall days in December:
12.2 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
Norwalk, 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 48min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - 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:
2h and 48min - Average sunshine in February:
3h and 0min - Average sunshine in March:
5h and 12min - Average sunshine in April:
6h and 48min - 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:
4h and 48min - Average sunshine in November:
4h and 30min - Average sunshine in December:
3h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days
Norwalk, WI
- Average sunshine days in January:
16.7 days - Average sunshine days in February:
15.4 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
14 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
17.1 days - Average sunshine days in September:
17.3 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
17.7 days - Average sunshine days in December:
17.6 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (11.6 days).
Average UV index
Norwalk, WI
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Norwalk, WI
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility
Norwalk, WI
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).





