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
In Mexico, the average high-temperature in December decreases from a frosty 49.5°F (9.7°C) in November to a wintry 39.7°F (4.3°C). Throughout December, the nighttime temperature averages to a freezing cold 28.6°F (-1.9°C).Humidity
The average relative humidity in December is 80%.Rainfall
In Mexico, in December, it is raining for 10.6 days, with typically 2.13" (54mm) of accumulated precipitation. In Mexico, during the entire year, the rain falls for 157.4 days and collects up to 28.46" (723mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Mexico, in December, snow falls for 6 days, with typically accumulated 1.73" (44mm) of snow. In Mexico, during the entire year, snow falls for 32.9 days and aggregates up to 13.94" (354mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December in Mexico, sunrise is at 7:14 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:52 pm EST.
Sunshine
In December, the average sunshine is 4.3h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December in Mexico?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Mexico, PA
- Average high temperature in December: 39.7°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Mexico, 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 (29.95"Hg).
Average wind speed in December
Mexico, PA
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Mexico, PA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Mexico, PA
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in December
Mexico, PA
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Mexico, PA
- Average snowfall in December: 1.73"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mexico, PA
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mexico, 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 18min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).
Average sunshine days in December
Mexico, PA
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Mexico, PA
- Average UV index in December: 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).
Average cloud cover in December
Mexico, PA
- Average cloud cover in December: 54
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Mexico, PA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, May, August, September and October (5mi).
Mexico, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location