January weather forecast
Banner, WY

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Weather in January

January, the same as December, in Banner, Wyoming, is another subzero cold winter month, with an average temperature ranging between max 30.4°F (-0.9°C) and min 15.6°F (-9.1°C).

Temperature

January begins with an average high-temperature of a still freezing cold 30.4°F (-0.9°C), reflecting close similarity to the preceding month. In Banner, in January, the average low-temperature is a still freezing cold 15.6°F (-9.1°C).

Humidity

The average relative humidity in January is 77%.

Rainfall

In Banner, Wyoming, in January, it is raining for 9 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, in Banner, there are 165.2 rainfall days, and 21.22" (539mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. In Banner, in January, during 13.2 snowfall days, 5.75" (146mm) of snow is typically accumulated. In Banner, during the entire year, snow falls for 78.9 days and aggregates up to 46.3" (1176mm) of snow.

Daylight

The average length of the day in January is 9h and 17min.
On the first day of the month, sunrise is at 7:44 am and sunset at 4:37 pm. On the last day of January, in Banner, sunrise is at 7:27 am and sunset at 5:14 pm MST.

Sunshine

In Banner, the average sunshine in January is 6.3h.

UV index

The months with the lowest UV index in Banner are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 2 in January translates into this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is January in Banner?

In Banner, in January, the average high-temperature is 30.4°F (-0.9°C), and the average low-temperature is 15.6°F (-9.1°C).

What is the average humidity in January in Banner?

In January, the average relative humidity in Banner, Wyoming, is 77%.

How many days does it rain in January in Banner?

In Banner, in January, it is raining for 9 days, with typically 0.94" (24mm) of accumulated precipitation.

How many days does it snow in January in Banner?

In Banner, Wyoming, in January, during 13.2 snowfall days, 5.75" (146mm) of snow is typically accumulated.

What is the average length of the day in January in Banner?

In Banner, Wyoming, the average day length in January is 9h and 17min.

When are sunrise and sunset in January in Banner?

In January, on the first day of the month, sunrise is at 7:44 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:14 pm MST.

How many hours of sunshine does Banner have in January?

In January, the average sunshine duration is 6.3h.

When is the lowest UV index in Banner?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in January in Banner?

In January, the average daily maximum UV index in Banner is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Banner, WY

Average temperature in January - Banner, WY
  • Average high temperature in January: 30.4°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).

  • Average low temperature in January: 15.6°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

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Average pressure in January
Banner, WY

Average pressure in January - Banner, WY
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in January
Banner, WY

Average wind speed in January - Banner, WY
  • Average wind speed in January: 7mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in January
Banner, WY

Average humidity in January - Banner, WY
  • Average humidity in January: 77%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).

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Average rainfall in January
Banner, WY

Average rainfall in January - Banner, WY
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").

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Average rainfall days in January
Banner, WY

Average rainfall days in January - Banner, WY
  • Average rainfall days in January: 9 days

The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in January
Banner, WY

Average snowfall in January - Banner, WY
  • Average snowfall in January: 5.75"

The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Banner, WY

Average snowfall days in January - Banner, WY
  • Average snowfall days in January: 13.2 days

The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in January /
Average sunshine in January
Banner, WY

Average daylight in January / Average sunshine in January - Banner, WY
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 6h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).

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Average sunshine days in January
Banner, WY

Average sunshine days in January - Banner, WY
  • Average sunshine days in January: 13.6 days

The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).

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Average UV index in January
Banner, WY

Average UV index in January - Banner, WY
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in January
Banner, WY

Average cloud cover in January - Banner, WY
  • Average cloud cover in January: 33

The months with the most cloud cover are February and April (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in January
Banner, WY

Average visibility in January - Banner, WY
  • Average visibility in January: 6mi

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

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Banner, Wyoming, USA

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