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
Morris's December weather shows a moderate shift in high-temperatures, falling from November's frosty 44.1°F (6.7°C) to an icy 34.7°F (1.5°C). Morris temperatures generally rest at a low of 25.2°F (-3.8°C) during the December nights.Humidity
In Morris, the average relative humidity in December is 85%.Rainfall
In Morris, during December, the rain falls for 11.9 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Morris, during the entire year, the rain falls for 161.9 days and collects up to 20.04" (509mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Morris. In December, it is snowing for 14.3 days. Throughout December, 3.5" (89mm) of snow is accumulated. Throughout the year, there are 71.4 snowfall days, and 16.54" (420mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Morris.On the first day of December in Morris, sunrise is at 7:17 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:49 pm EST.
Sunshine
With an average of 3.1h of sunshine, December has the least sunshine of the year in Morris.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
How cold is December in Morris?
What is the average humidity in December in Morris?
How much does it rain in Morris in December?
How many days does it snow in December in Morris?
What is the month with the shortest days in Morris?
What is the average length of the day in December in Morris?
When are sunrise and sunset in December in Morris?
What is the month with the least sunshine in Morris?
How long on average sun shines in December in Morris?
What is the month with the lowest UV index in Morris?
What is the UV index reading in December in Morris?
Average temperature in December
Morris, PA
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Morris, 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
Morris, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Morris, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in December
Morris, PA
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in December
Morris, PA
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in December
Morris, PA
- Average snowfall in December: 3.5"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Morris, PA
- Average snowfall days in December: 14.3 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Morris, PA
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in December
Morris, PA
- Average sunshine days in December: 9.2 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in December
Morris, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Morris, PA
- Average cloud cover in December: 68
The months with the most cloud cover are January and December (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Morris, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
Morris, Pennsylvania, USA
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