Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The advent of September brings a subtle shift in temperature, with the average high moving from a warm 77.2°F (25.1°C) in August to a pleasant 68.4°F (20.2°C). In September, Hayward experiences a temperature dip to an average of 49.1°F (9.5°C) at night.Humidity
In Hayward, the average relative humidity in September is 79%.Rainfall
In Hayward, Wisconsin, in September, during 12.4 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Hayward, during the entire year, the rain falls for 114.4 days and collects up to 20.79" (528mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Hayward is 12h and 32min.On the first day of September in Hayward, Wisconsin, sunrise is at 6:27 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:47 pm CDT.
Sunshine
In September, the average sunshine is 8h.UV index
In Hayward, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What are the temperatures in Hayward in September?
What is the average humidity in September in Hayward?
How many days does it rain in September in Hayward?
When it does not snow in Hayward?
Does it snow in Hayward in September?
How many hours of daylight does Hayward have in September?
When is the sunrise / sunset in September in Hayward?
How long on average sun shines in September in Hayward?
What is the UV index reading in September in Hayward?
Average temperature in September
Hayward, WI
- Average high temperature in September: 68.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (17.4°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure in September
Hayward, WI
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Hayward, WI
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Hayward, WI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Hayward, WI
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in September
Hayward, WI
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in September
Hayward, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hayward, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hayward, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in September
Hayward, WI
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (10.9 days).
Average UV index in September
Hayward, WI
- Average UV index in September: 4
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 in September
Hayward, WI
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Hayward, WI
- Average visibility in September: 5mi
The months with the highest visibility are May, June and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Hayward, Wisconsin, USA
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