December weather forecast
Landisville, PA

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Weather in December

The first month of the winter, December, is still a cold month in Landisville, Pennsylvania, with an average temperature ranging between max 41.9°F (5.5°C) and min 30°F (-1.1°C).

Temperature

December shows a mild decline in the average high-temperature, falling from November's fresh 51.1°F (10.6°C) to an icy 41.9°F (5.5°C). Landisville experiences an average low-temperature reading of 30°F (-1.1°C) throughout December.

Humidity

The average relative humidity in December in Landisville is 79%.

Rainfall

In Landisville, Pennsylvania, in December, it is raining for 8.2 days, with typically 1.1" (28mm) of accumulated precipitation. In Landisville, Pennsylvania, during the entire year, the rain falls for 125.9 days and collects up to 15.08" (383mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, in Landisville, it is snowing for 2.6 days. Throughout December, 0.79" (20mm) of snow is accumulated. In Landisville, Pennsylvania, during the entire year, snow falls for 16.4 days and aggregates up to 5.04" (128mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Landisville.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:40 pm. On the last day of December, in Landisville, sunrise is at 7:27 am and sunset at 4:50 pm EST.

Sunshine

In Landisville, the average sunshine in December is 4.8h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Landisville, Pennsylvania. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 2 in December transforms into this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. During bright days, sunglasses that offer UVA and UVB defense are recommended. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

Is it cold in Landisville during December?

The high-temperature, in December, in Landisville, records 41.9°F (5.5°C), while the low-temperature is 30°F (-1.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 86°F (30°C).

What is the average humidity in December in Landisville?

In December, the average relative humidity in Landisville is 79%.

How much does it rain in Landisville in December?

In Landisville, in December, it is raining for 8.2 days, with typically 1.1" (28mm) of accumulated precipitation.

How much does it snow in Landisville in December?

In Landisville, in December, during 2.6 snowfall days, 0.79" (20mm) of snow is typically accumulated.

What is the month with the shortest days in Landisville?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Landisville?

In December, the average day length in Landisville is 9h and 23min.

When are sunrise and sunset in December in Landisville?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:40 pm. On the last day of the month, in Landisville, Pennsylvania, sunrise is at 7:27 am and sunset at 4:50 pm EST.

How long on average sun shines in December in Landisville?

In December, the average sunshine duration in Landisville, Pennsylvania, is 4.8h.

What are the months with the lowest UV index in Landisville?

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

How high is the UV index in December in Landisville?

The average daily maximum UV index in December in Landisville, Pennsylvania, is 2. A UV Index reading of 2, and below, represents a low health risk 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 December
Landisville, PA

Average temperature in December - Landisville, PA
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure in December
Landisville, PA

Average pressure in December - Landisville, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in December
Landisville, PA

Average wind speed in December - Landisville, PA
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in December
Landisville, PA

Average humidity in December - Landisville, PA
  • Average humidity in December: 79%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Landisville, PA

Average rainfall in December - Landisville, PA
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is February (0.83").

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Average rainfall days in December
Landisville, PA

Average rainfall days in December - Landisville, PA
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is February (5.7 days).

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Average snowfall in December
Landisville, PA

Average snowfall in December - Landisville, PA
  • Average snowfall in December: 0.79"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Landisville, PA

Average snowfall days in December - Landisville, PA
  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Landisville, PA

Average daylight in December / Average sunshine in December - Landisville, PA
  • Average daylight in December: 9h and 2min

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 December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in December
Landisville, PA

Average sunshine days in December - Landisville, PA
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in December
Landisville, PA

Average UV index in December - Landisville, PA
  • Average UV index in December: 2

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

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Average cloud cover in December
Landisville, PA

Average cloud cover in December - Landisville, PA
  • Average cloud cover in December: 49

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in December
Landisville, PA

Average visibility in December - Landisville, PA
  • Average visibility in December: 6mi

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

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Landisville, Pennsylvania, USA

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