Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The decrease of average high-temperatures is mild in December, with a decline from a wintry 36.7°F (2.6°C) in November to a subzero cold 23.4°F (-4.8°C). Hayward's temperature lowers to a mean of 12.6°F (-10.8°C) during the nights in December.Humidity
The average relative humidity in December in Hayward, Wisconsin, is 90%.Rainfall
In December, the rain falls for 4 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. Throughout the year, there are 114.4 rainfall days, and 20.79" (528mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Hayward. December is the month with the most snowfall in Hayward. Snow falls for 16.6 days and accumulates 7.17" (182mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:22 pm. On the last day of December, in Hayward, sunrise is at 7:47 am and sunset at 4:30 pm CST.
Sunshine
In December, the average sunshine in Hayward is 2.4h.UV index
The months with the lowest UV index in Hayward are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
How cold is December in Hayward?
What is the average humidity in December in Hayward?
How many days does it rain in December in Hayward?
What is the snowiest month in Hayward?
How many days does it snow in December in Hayward?
What is the month with the shortest days in Hayward?
What is the average length of the day in December in Hayward?
When is the sunrise / sunset in December in Hayward?
How many hours of sunshine does Hayward have in December?
When is the lowest UV index in Hayward?
How high is the UV index in December in Hayward?
Average temperature in December
Hayward, WI
- Average high temperature in December: 23.4°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 December: 12.6°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 December
Hayward, WI
- Average pressure in December: 30.09"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 December
Hayward, WI
- Average wind speed in December: 7.8mph
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 December
Hayward, WI
- Average humidity in December: 90%
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 December
Hayward, WI
- Average rainfall in December: 1.22"
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 December
Hayward, WI
- Average rainfall days in December: 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 December
Hayward, WI
- Average snowfall in December: 7.17"
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 December
Hayward, WI
- Average snowfall days in December: 16.6 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 December /
Average sunshine in December
Hayward, WI
- Average daylight in December: 8h and 4min
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 December: 2h and 2min
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 December
Hayward, WI
- Average sunshine days in December: 13.6 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 December
Hayward, WI
- Average UV index in December: 1
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 December
Hayward, WI
- Average cloud cover in December: 75
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 December
Hayward, WI
- Average visibility in December: 4mi
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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