January weather forecast
Castleford, ID

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Weather in January

January, like December, in Castleford, Idaho, is another cold winter month, with an average temperature fluctuating between 35.2°F (1.8°C) and 24.3°F (-4.3°C).

Temperature

The average high-temperature during January is a still icy 35.2°F (1.8°C), almost matching the conditions of the preceding month. Castleford experiences an average low-temperature of 24.3°F (-4.3°C) in the month of January.

Humidity

The most humid month in Castleford, Idaho, is January, with an average relative humidity of 78%.

Rainfall

The month with the most rainfall is January, when the rain falls for 7.6 days and typically aggregates up to 1.18" (30mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall in Castleford, Idaho, is January, when snow falls for 8.6 days and typically aggregates up to 5" (127mm) of snow.

Daylight

The average length of the day in January in Castleford is 9h and 29min.
On the first day of the month, sunrise is at 8:09 am and sunset at 5:16 pm. On the last day of January, in Castleford, sunrise is at 7:54 am and sunset at 5:51 pm MST.

Sunshine

The average sunshine in January is 6.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Castleford, Idaho. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 2 in January suggests the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

How cold is January in Castleford?

During January, Castleford experiences an average high-temperature of 35.2°F (1.8°C) and a low-temperature of 24.3°F (-4.3°C).

What is the most humid month in Castleford?

January is the most humid month in Castleford, with an average relative humidity of 78%.

What is the average humidity in January in Castleford?

In January, the average relative humidity in Castleford is 78%.

What is the rainiest month in Castleford?

The month with the most rainfall is January, when the rain falls for 7.6 days and typically aggregates up to 1.18" (30mm) of precipitation.

How much does it rain in Castleford in January?

In Castleford, Idaho, during January, the rain falls for 7.6 days and regularly aggregates up to 1.18" (30mm) of precipitation.

When does it snow the most in Castleford?

The month with the most snowfall is January, when snow falls for 8.6 days and typically aggregates up to 5" (127mm) of snow.

How many days does it snow in January in Castleford?

In Castleford, Idaho, in January, during 8.6 snowfall days, 5" (127mm) of snow is typically accumulated.

How many hours of daylight does Castleford have in January?

In January, the average day length is 9h and 29min.

When are sunrise and sunset in January in Castleford?

In January, on the first day of the month, sunrise is at 8:09 am and sunset at 5:16 pm. On the last day of the month, in Castleford, sunrise is at 7:54 am and sunset at 5:51 pm MST.

How long on average sun shines in January in Castleford?

The average sunshine duration in January in Castleford is 6.1h.

What is the month with the lowest UV index in Castleford?

The months with the lowest UV index in Castleford, Idaho, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January in Castleford?

In January, the average daily maximum UV index in Castleford, Idaho, is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Castleford, ID

Average temperature in January - Castleford, ID
  • Average high temperature in January: 35.2°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is December (34.2°F).

  • Average low temperature in January: 24.3°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).

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Average pressure in January
Castleford, ID

Average pressure in January - Castleford, ID
  • Average pressure in January: 30.28"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in January
Castleford, ID

Average wind speed in January - Castleford, ID
  • Average wind speed in January: 7.4mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).

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Average humidity in January
Castleford, ID

Average humidity in January - Castleford, ID
  • Average humidity in January: 78%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is July (27%).

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Average rainfall in January
Castleford, ID

Average rainfall in January - Castleford, ID
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is January (1.18").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in January
Castleford, ID

Average rainfall days in January - Castleford, ID
  • Average rainfall days in January: 7.6 days

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is October (5.2 days).

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Average snowfall in January
Castleford, ID

Average snowfall in January - Castleford, ID
  • Average snowfall in January: 5"

The month with the highest snowfall is January (5").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Castleford, ID

Average snowfall days in January - Castleford, ID
  • Average snowfall days in January: 8.6 days

The month with the highest number of snowfall days is January (8.6 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
Castleford, ID

Average daylight in January / Average sunshine in January - Castleford, ID
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 6h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in January
Castleford, ID

Average sunshine days in January - Castleford, ID
  • Average sunshine days in January: 18.8 days

The month with the most sunshine days is October (24.5 days).
The month with the least sunshine days is February (16.1 days).

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Average UV index in January
Castleford, ID

Average UV index in January - Castleford, ID
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in January
Castleford, ID

Average cloud cover in January - Castleford, ID
  • Average cloud cover in January: 36

The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are July and August (Cloud cover 10).

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Average visibility in January
Castleford, ID

Average visibility in January - Castleford, ID
  • 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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Castleford, Idaho, USA

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