January weather forecast
Armagh, PA

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Weather in January

January, like December, is another subzero cold winter month in Armagh, Pennsylvania, with an average temperature varying between 18.9°F (-7.3°C) and 30.7°F (-0.7°C).

Temperature

With average high temperatures of 30.7°F (-0.7°C) and lows of 18.9°F (-7.3°C), January is the coldest month.

Humidity

The average relative humidity in January is 85%.

Rainfall

In January, the rain falls for 9.6 days. Throughout January, 2.6" (66mm) of precipitation is accumulated. Throughout the year, in Armagh, there are 176.9 rainfall days, and 32.87" (835mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall in Armagh. Snow falls for 17.1 days and accumulates 7.8" (198mm) of snow.

Daylight

In Armagh, the average length of the day in January is 9h and 41min.
On the first day of January, sunrise is at 7:39 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:32 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 3h of sunshine.

UV index

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: In January, a regular UV index of 2 translates into these guidelines:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. 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. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What is the coldest month in Armagh?

January, noted for its average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 18.9°F (-7.3°C), is considered the coldest month in Armagh, Pennsylvania.

How cold is it in Armagh in January?

An average high-temperature, in January, in Armagh, is 30.7°F (-0.7°C) and the average low-temperature is 18.9°F (-7.3°C).

What is the average humidity in January in Armagh?

In January, the average relative humidity in Armagh is 85%.

How many days does it rain in January in Armagh?

In January, the rain falls for 9.6 days. Throughout January, 2.6" (66mm) of precipitation is accumulated.

When does it snow the most in Armagh?

January is the month with the most snowfall. Snow falls for 17.1 days and accumulates 7.8" (198mm) of snow.

How many days does it snow in January in Armagh?

In January, in Armagh, Pennsylvania, it is snowing for 17.1 days. Throughout January, 7.8" (198mm) of snow is accumulated.

How many hours of daylight does Armagh have in January?

In Armagh, the average day length in January is 9h and 41min.

When are sunrise and sunset in January in Armagh?

On the first day of January, sunrise is at 7:39 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:32 pm EST.

What is the month with the least sunshine in Armagh?

With an average of 3h of sunshine, January has the least sunshine of the year in Armagh.

How long on average sun shines in January in Armagh?

The average sunshine duration in January is 3h.

How high is the UV index in January in Armagh?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat 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
Armagh, PA

Average temperature in January - Armagh, PA
  • Average high temperature in January: 30.7°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in January: 18.9°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in January
Armagh, PA

Average pressure in January - Armagh, PA
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in January
Armagh, PA

Average wind speed in January - Armagh, PA
  • Average wind speed in January: 10.1mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in January
Armagh, PA

Average humidity in January - Armagh, PA
  • Average humidity in January: 85%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and July (78%).

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Average rainfall in January
Armagh, PA

Average rainfall in January - Armagh, PA
  • Average rainfall in January: 2.6"

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is November (1.97").

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Average rainfall days in January
Armagh, PA

Average rainfall days in January - Armagh, PA
  • Average rainfall days in January: 9.6 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9.5 days).

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Average snowfall in January
Armagh, PA

Average snowfall in January - Armagh, PA
  • Average snowfall in January: 7.8"

The month with the highest snowfall is January (7.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Armagh, PA

Average snowfall days in January - Armagh, PA
  • Average snowfall days in January: 17.1 days

The month with the highest number of snowfall days is January (17.1 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
Armagh, PA

Average daylight in January / Average sunshine in January - Armagh, 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 18min).

  • Average sunshine in January: 3h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in January
Armagh, PA

Average sunshine days in January - Armagh, PA
  • Average sunshine days in January: 7 days

The month with the most sunshine days is November (13.6 days).
The month with the least sunshine days is January (7 days).

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Average UV index in January
Armagh, PA

Average UV index in January - Armagh, PA
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in January
Armagh, PA

Average cloud cover in January - Armagh, PA
  • Average cloud cover in January: 71

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 38).

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Average visibility in January
Armagh, PA

Average visibility in January - Armagh, PA
  • Average visibility in January: 4mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

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Armagh, Pennsylvania, USA

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