January weather forecast
Castle Valley, PA

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Weather in January

January, like December, in Castle Valley, Pennsylvania, is another cold winter month, with an average temperature varying between 35.6°F (2°C) and 23.4°F (-4.8°C).

Temperature

In Castle Valley, the lowest average temperatures are observed in January, with a high of 35.6°F (2°C) and a low of 23.4°F (-4.8°C).

Humidity

In January, the average relative humidity is 76%.

Rainfall

In January, the rain falls for 8.7 days. Throughout January, 1.85" (47mm) of precipitation is accumulated. Throughout the year, there are 158.6 rainfall days, and 28.31" (719mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Castle Valley are January through May, October through December. In Castle Valley, Pennsylvania, during January, snow falls for 7.9 days and regularly aggregates up to 2.13" (54mm) of snow. In Castle Valley, during the entire year, snow falls for 24.6 days and aggregates up to 10.24" (260mm) of snow.

Daylight

In Castle Valley, the average length of the day in January is 9h and 41min.
On the first day of the month, sunrise is at 7:23 am and sunset at 4:44 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:17 pm EST.

Sunshine

The average sunshine in January is 4.9h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 2 during January translates into the following directions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. To cut down UV radiation exposure by about half, sport a wide-brim hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What part of the year is the coldest in Castle Valley?

In Castle Valley, January is the coldest month, with temperatures averaging a high of 35.6°F (2°C) and a low of 23.4°F (-4.8°C).

How cold is it in Castle Valley in January?

In January, in Castle Valley, the average high-temperature is 35.6°F (2°C), and the average low-temperature is 23.4°F (-4.8°C).

What is the average humidity in January in Castle Valley?

The average relative humidity in January in Castle Valley, Pennsylvania, is 76%.

How many days does it rain in January in Castle Valley?

In Castle Valley, Pennsylvania, during January, the rain falls for 8.7 days and regularly aggregates up to 1.85" (47mm) of precipitation.

How much does it snow in Castle Valley in January?

In January, it is snowing for 7.9 days. Throughout January, 2.13" (54mm) of snow is accumulated.

How many hours of daylight does Castle Valley have in January?

The average day length in January is 9h and 41min.

When is the sunrise / sunset in January in Castle Valley?

In January, on the first day of the month, sunrise is at 7:23 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:17 pm EST.

How many hours of sunshine does Castle Valley have in January?

The average sunshine duration in January is 4.9h.

What is the month with the lowest UV index in Castle Valley?

The months with the lowest UV index in Castle Valley are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Castle Valley?

In Castle Valley, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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
Castle Valley, PA

Average temperature in January - Castle Valley, PA
  • Average high temperature in January: 35.6°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in January: 23.4°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in January
Castle Valley, PA

Average pressure in January - Castle Valley, PA
  • Average pressure in January: 30.08"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Castle Valley, PA

Average wind speed in January - Castle Valley, PA
  • Average wind speed in January: 8.1mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in January
Castle Valley, PA

Average humidity in January - Castle Valley, PA
  • Average humidity in January: 76%

The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in January
Castle Valley, PA

Average rainfall in January - Castle Valley, PA
  • Average rainfall in January: 1.85"

The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in January
Castle Valley, PA

Average rainfall days in January - Castle Valley, PA
  • Average rainfall days in January: 8.7 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).

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Average snowfall in January
Castle Valley, PA

Average snowfall in January - Castle Valley, PA
  • Average snowfall in January: 2.13"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Castle Valley, PA

Average snowfall days in January - Castle Valley, PA
  • Average snowfall days in January: 7.9 days

The month with the highest number of snowfall days is January (7.9 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
Castle Valley, PA

Average daylight in January / Average sunshine in January - Castle Valley, PA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in January
Castle Valley, PA

Average sunshine days in January - Castle Valley, PA
  • Average sunshine days in January: 17.8 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (11 days).

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Average UV index in January
Castle Valley, PA

Average UV index in January - Castle Valley, PA
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in January
Castle Valley, PA

Average cloud cover in January - Castle Valley, PA
  • Average cloud cover in January: 46

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in January
Castle Valley, PA

Average visibility in January - Castle Valley, PA
  • Average visibility in January: 6mi

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

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Castle Valley, Pennsylvania, USA

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