January weather forecast
Graytown, WI

Weather in January

January, the same as December, in Graytown, Wisconsin, is another subzero cold winter month, with an average temperature ranging between min 5°F (-15°C) and max 18°F (-7.8°C).

Temperature

January is the coldest month, with an average high-temperature of 18°F (-7.8°C) and an average low-temperature of 5°F (-15°C).

Humidity

The most humid month in Graytown is January, with an average relative humidity of 92%.

Rainfall

The month with the least rainfall is January, when the rain falls for 2.7 days and typically collects 0.67" (17mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Graytown, during January, snow falls for 16.4 days and regularly aggregates up to 3.94" (100mm) of snow. Throughout the year, in Graytown, Wisconsin, there are 74.5 snowfall days, and 24.06" (611mm) of snow is accumulated.

Daylight

The average length of the day in January in Graytown is 9h and 13min.
On the first day of the month, sunrise is at 7:47 am and sunset at 4:37 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:14 pm CST.

Sunshine

January has the least sunshine of the year in Graytown, with an average of 2.7h of sunshine.

UV index

The months with the lowest UV index in Graytown are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In January, the average maximum UV index of 1 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Graytown?

January is the coldest month in Graytown, with an average high-temperature of 18°F (-7.8°C) and an average low-temperature of 5°F (-15°C).

What is the temperature in January in Graytown?

In January, the average high-temperature is 18°F (-7.8°C), and the average low-temperature is 5°F (-15°C).

What is the most humid month in Graytown?

The most humid month in Graytown, Wisconsin, is January, with an average relative humidity of 92%.

What is the average humidity in January in Graytown?

The average relative humidity in January in Graytown is 92%.

What is the driest month in Graytown?

January is the month with the least rainfall. Rain falls for 2.7 days and accumulates 0.67" (17mm) of precipitation.

How many days does it rain in January in Graytown?

In January, the rain falls for 2.7 days. Throughout January, 0.67" (17mm) of precipitation is accumulated.

How many days does it snow in January in Graytown?

In Graytown, during January, snow falls for 16.4 days and regularly aggregates up to 3.94" (100mm) of snow.

How many hours of daylight does Graytown have in January?

The average day length in January in Graytown, Wisconsin, is 9h and 13min.

What time are sunrise and sunset in January in Graytown?

On the first day of January, sunrise is at 7:47 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:14 pm CST.

What is the month with the least sunshine in Graytown?

The month with the least sunshine in Graytown is January, with an average of 2.7h of sunshine.

How long on average sun shines in January in Graytown?

In January, the average sunshine duration in Graytown, Wisconsin, is 2.7h.

What are the months with the lowest UV index in Graytown?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Graytown, Wisconsin.

What is the UV index intensity in January in Graytown?

In Graytown, the average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Graytown, WI

Average temperature in January - Graytown, WI
  • Average high temperature in January: 18°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (18°F).

  • Average low temperature in January: 5°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (5°F).

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Average pressure in January
Graytown, WI

Average pressure in January - Graytown, WI
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in January
Graytown, WI

Average wind speed in January - Graytown, WI
  • Average wind speed in January: 9mph

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in January
Graytown, WI

Average humidity in January - Graytown, WI
  • Average humidity in January: 92%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in January
Graytown, WI

Average rainfall in January - Graytown, WI
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in January
Graytown, WI

Average rainfall days in January - Graytown, WI
  • Average rainfall days in January: 2.7 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is January (2.7 days).

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Average snowfall in January
Graytown, WI

Average snowfall in January - Graytown, WI
  • Average snowfall in January: 3.94"

The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Graytown, WI

Average snowfall days in January - Graytown, WI
  • Average snowfall days in January: 16.4 days

The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Graytown, WI

Average daylight in January / Average sunshine in January - Graytown, WI
  • Average daylight in January: 9h and 13min

The month with the longest days is June (Average daylight: 15h and 35min).
The month with the shortest days is December (Average daylight: 8h and 49min).

  • Average sunshine in January: 2h 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: 2h and 42min).

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Average sunshine days in January
Graytown, WI

Average sunshine days in January - Graytown, WI
  • Average sunshine days in January: 14.1 days

The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (9.3 days).

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Average UV index in January
Graytown, WI

Average UV index in January - Graytown, WI
  • Average UV index in January: 1

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).

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Average cloud cover in January
Graytown, WI

Average cloud cover in January - Graytown, WI
  • Average cloud cover in January: 72

The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in January
Graytown, WI

Average visibility in January - Graytown, WI
  • Average visibility in January: 4mi

The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

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