January weather forecast
Lower Allen, PA

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Weather in January

January, like December, in Lower Allen, Pennsylvania, is another cold winter month, with an average temperature ranging between max 35.2°F (1.8°C) and min 22.3°F (-5.4°C).

Temperature

Lower Allen experiences its lowest average temperatures in January, reaching a peak of 35.2°F (1.8°C) and a minimum of 22.3°F (-5.4°C).

Humidity

In Lower Allen, Pennsylvania, the average relative humidity in January is 77%.

Rainfall

The months with the least rainfall in Lower Allen are January and September Rain falls for 7.3 days and accumulates 1.3" (33mm) of rain.

Snowfall

January through April, November and December are months with snowfall in Lower Allen. January is the month with the most snowfall. Snow falls for 7.1 days and accumulates 2.4" (61mm) of snow.

Daylight

In January, the average length of the day in Lower Allen is 9h and 42min.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:52 pm. On the last day of January, in Lower Allen, sunrise is at 7:17 am and sunset at 5:24 pm EST.

Sunshine

In January, the average sunshine in Lower Allen is 4.7h.

UV index

The months with the lowest UV index in Lower Allen are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 2 in January leads to these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

What time of the year is the coldest in Lower Allen?

The coldest period tends to be January, when average temperatures fluctuate between a high of 35.2°F (1.8°C) and a low of 22.3°F (-5.4°C).

How cold is January in Lower Allen?

An average high-temperature, in January, in Lower Allen, is 35.2°F (1.8°C) and the average low-temperature is 22.3°F (-5.4°C).

What is the average humidity in January in Lower Allen?

The average relative humidity in January in Lower Allen, Pennsylvania, is 77%.

What is the driest month in Lower Allen?

January and September are months with the least rain in Lower Allen, Pennsylvania, when the rain falls for 7.3 days and typically aggregates up to 1.3" (33mm) of rain.

How much does it rain in Lower Allen in January?

In Lower Allen, during January, the rain falls for 7.3 days and regularly aggregates up to 1.3" (33mm) of precipitation.

What is the snowiest month in Lower Allen?

January is the month with the most snowfall. Snow falls for 7.1 days and accumulates 2.4" (61mm) of snow.

How many days does it snow in January in Lower Allen?

In Lower Allen, Pennsylvania, in January, snow falls for 7.1 days, with typically accumulated 2.4" (61mm) of snow.

How many hours of daylight does Lower Allen have in January?

In Lower Allen, Pennsylvania, the average day length in January is 9h and 42min.

When are sunrise and sunset in January in Lower Allen?

In January, on the first day of the month, sunrise is at 7:30 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:24 pm EST.

How long on average sun shines in January in Lower Allen?

In Lower Allen, Pennsylvania, the average sunshine duration in January is 4.7h.

When is the lowest UV index in Lower Allen?

January through March, November and 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 Lower Allen?

The average daily maximum UV index in January in Lower Allen, Pennsylvania, is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
41.2°F 5.1°C
35.2°F 1.8°C
38.7°F 3.7°C
Average low temperature
29.8°F -1.2°C
22.3°F -5.4°C
24.3°F -4.3°C
Average pressure
30.1" 765mmHg
30.1" 765mmHg
30.07" 764mmHg
Average wind speed
7.8mph 12.6km/h
8.2mph 13.2km/h
8.3mph 13.4km/h
Average max. wind speed
8.4mph 13.5km/h
8.9mph 14.3km/h
9mph 14.5km/h
Average wind speed gusts
12.5mph 20.1km/h
13.2mph 21.2km/h
13.4mph 21.6km/h
Average humidity
79%
77%
80%
Average rainfall
1.38" 35mm
1.3" 33mm
1.38" 35mm
Average rainfall days
10.5
7.3
8.7
Average snowfall
1.06" 27mm
2.4" 61mm
2.24" 57mm
Average snowfall days
4.5
7.1
6.2
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 4min
4h 4min
4h 3min
Average sunshine days
17.5
18
14.8
Average UV index
2
2
2
Average cloud cover
49%
49%
50%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Lower Allen, PA

Average temperature in January - Lower Allen, PA
  • Average high temperature in January: 35.2°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in January: 22.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure in January
Lower Allen, PA

Average pressure in January - Lower Allen, PA
  • Average pressure in January: 30.1"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
Lower Allen, PA

Average wind speed in January - Lower Allen, PA
  • Average wind speed in January: 8.2mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in January
Lower Allen, PA

Average humidity in January - Lower Allen, PA
  • Average humidity in January: 77%

The months with the highest relative humidity are February and May (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in January
Lower Allen, PA

Average rainfall in January - Lower Allen, PA
  • Average rainfall in January: 1.3"

The wettest months (with the highest rainfall) are May and August (2.09").
The driest months (with the least rainfall) are January and September (1.3").

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Average rainfall days in January
Lower Allen, PA

Average rainfall days in January - Lower Allen, PA
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in January
Lower Allen, PA

Average snowfall in January - Lower Allen, PA
  • Average snowfall in January: 2.4"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Lower Allen, PA

Average snowfall days in January - Lower Allen, PA
  • Average snowfall days in January: 7.1 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Lower Allen, PA

Average daylight in January / Average sunshine in January - Lower Allen, 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 4min

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 30min).

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Average sunshine days in January
Lower Allen, PA

Average sunshine days in January - Lower Allen, PA
  • Average sunshine days in January: 18 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12 days).

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Average UV index in January
Lower Allen, PA

Average UV index in January - Lower Allen, PA
  • Average UV index in January: 2

The months with the highest UV index are May, June and July (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
Lower Allen, PA

Average cloud cover in January - Lower Allen, PA
  • Average cloud cover in January: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in January
Lower Allen, PA

Average visibility in January - Lower Allen, 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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Lower Allen, Pennsylvania, USA

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