Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December brings a decrease in the average high-temperature, falling from November's frosty 46.4°F (8°C) to an icy 36.9°F (2.7°C). In the month of December, an average of 25.9°F (-3.4°C) marks the low-temperature.Humidity
In Lattimer, the average relative humidity in December is 83%.Rainfall
In Lattimer, in December, during 11 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Lattimer, during the entire year, the rain falls for 163.3 days and collects up to 34.37" (873mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Lattimer, in December, during 10.7 snowfall days, 4.57" (116mm) of snow is typically accumulated. In Lattimer, during the entire year, snow falls for 53.8 days and aggregates up to 33.66" (855mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:45 pm EST.
Sunshine
In Lattimer, the average sunshine in December is 3.9h.UV index
The month with the lowest UV index in Lattimer is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 1 during December translates into the following directions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December in Lattimer?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Lattimer have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Lattimer have in December?
When is the lowest UV index in Lattimer?
How high is the UV index in December?
Average temperature in December
Lattimer, PA
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Lattimer, PA
- Average pressure in December: 30.09"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).
Average wind speed in December
Lattimer, PA
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Lattimer, PA
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (78%).
Average rainfall in December
Lattimer, PA
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Lattimer, PA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Lattimer, PA
- Average snowfall in December: 4.57"
The months with the highest snowfall are January and February (7.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lattimer, PA
- Average snowfall days in December: 10.7 days
The month with the highest number of snowfall days is February (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lattimer, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Lattimer, PA
- Average sunshine days in December: 12.8 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (8.7 days).
Average UV index in December
Lattimer, PA
- Average UV index in December: 1
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).
Average cloud cover in December
Lattimer, PA
- Average cloud cover in December: 60
The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Lattimer, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Lattimer, Pennsylvania, USA
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