January weather forecast
Kirby, WY

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Weather in January

January, like December, is a freezing cold winter month in Kirby, Wyoming, with an average temperature ranging between min 12.6°F (-10.8°C) and max 28.9°F (-1.7°C).

Temperature

As January takes hold, the average high-temperature is a still freezing cold 28.9°F (-1.7°C), nearly mirroring that of the previous month. In Kirby, an average nighttime temperature of 12.6°F (-10.8°C) is expected during January.

Humidity

With an average relative humidity of 81%, January is the most humid month in Kirby.

Rainfall

The month with the least rainfall in Kirby, Wyoming, is January, when the rain falls for 4.3 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Kirby, in January, snow falls for 9.3 days, with typically accumulated 3.07" (78mm) of snow. Throughout the year, there are 51.2 snowfall days, and 21.3" (541mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 22min.
On the first day of January in Kirby, sunrise is at 7:46 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:21 pm MST.

Sunshine

The average sunshine in January is 6.5h.

UV index

January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the maximum UV index of 2 suggests this advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold is January in Kirby?

The average high-temperature and low-temperature in Kirby during January are 28.9°F (-1.7°C) and 12.6°F (-10.8°C) respectively.

What is the most humid month in Kirby?

The most humid month in Kirby, Wyoming, is January, with an average relative humidity of 81%.

What is the average humidity in January in Kirby?

In Kirby, the average relative humidity in January is 81%.

What is the driest month in Kirby?

January is the month with the least rainfall. Rain falls for 4.3 days and accumulates 0.43" (11mm) of precipitation.

How much does it rain in Kirby in January?

In Kirby, in January, it is raining for 4.3 days, with typically 0.43" (11mm) of accumulated precipitation.

How much does it snow in Kirby in January?

In Kirby, in January, snow falls for 9.3 days, with typically accumulated 3.07" (78mm) of snow.

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

The average day length in January is 9h and 22min.

When are sunrise and sunset in January in Kirby?

On the first day of January, sunrise is at 7:46 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:21 pm MST.

How many hours of sunshine does Kirby have in January?

In January, the average sunshine duration in Kirby, Wyoming, is 6.5h.

When is the lowest UV index in Kirby?

January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Kirby.

How high is the UV index in January in Kirby?

In January, the average daily maximum UV index in Kirby is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
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
Kirby, WY

Average temperature in January - Kirby, WY
  • Average high temperature in January: 28.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (28.2°F).

  • Average low temperature in January: 12.6°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

Average pressure in January
Kirby, WY

Average pressure in January - Kirby, WY
  • Average pressure in January: 30.19"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in January
Kirby, WY

Average wind speed in January - Kirby, WY
  • Average wind speed in January: 5mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is January (5mph).

Average humidity in January
Kirby, WY

Average humidity in January - Kirby, WY
  • Average humidity in January: 81%

The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (35%).

Average rainfall in January
Kirby, WY

Average rainfall in January - Kirby, WY
  • Average rainfall in January: 0.43"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in January
Kirby, WY

Average rainfall days in January - Kirby, WY
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and December (4.3 days).

Average snowfall in January
Kirby, WY

Average snowfall in January - Kirby, WY
  • Average snowfall in January: 3.07"

The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July and August (0").

Average snowfall days in January
Kirby, WY

Average snowfall days in January - Kirby, WY
  • Average snowfall days in January: 9.3 days

The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

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: 6h and 3min

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 12min).

Average sunshine days in January
Kirby, WY

Average sunshine days in January - Kirby, WY
  • Average sunshine days in January: 20.2 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in January
Kirby, WY

Average UV index in January - Kirby, 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, November and December (UV index 2).

Average cloud cover in January
Kirby, WY

Average cloud cover in January - Kirby, WY
  • Average cloud cover in January: 30

The month with the most cloud cover is February (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 14).

Average visibility in January
Kirby, WY

Average visibility in January - Kirby, WY
  • Average visibility in January: 5mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Kirby, Wyoming, USA

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