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
New Plymouth's coldest month, December, generally records average temperatures ranging from a high of 35.8°F (2.1°C) to a low of 23.4°F (-4.8°C).Humidity
In New Plymouth, the average relative humidity in December is 78%.Rainfall
In New Plymouth, in December, during 9.1 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In New Plymouth, during the entire year, the rain falls for 95.4 days and collects up to 10.2" (259mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in New Plymouth, Idaho. December is the month with the most snowfall in New Plymouth. Snow falls for 7.5 days and accumulates 4.8" (122mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 8:02 am and sunset at 5:10 pm. On the last day of December, sunrise is at 8:21 am and sunset at 5:19 pm MST.
Sunshine
December has the least sunshine of the year, with an average of 5.3h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What time of the year is the coldest in New Plymouth?
How cold is December in New Plymouth?
What is the average humidity in December in New Plymouth?
How much does it rain in New Plymouth in December?
When does it snow the most in New Plymouth?
How many days does it snow in December in New Plymouth?
What is the month with the shortest days in New Plymouth?
What is the average length of the day in December in New Plymouth?
When are sunrise and sunset in December in New Plymouth?
What is the month with the least sunshine in New Plymouth?
How many hours of sunshine does New Plymouth have in December?
What are the months with the lowest UV index in New Plymouth?
What is the UV index reading in December in New Plymouth?
Average temperature in December
New Plymouth, ID
- Average high temperature in December: 35.8°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in December: 23.4°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).
Average pressure in December
New Plymouth, ID
- Average pressure in December: 30.21"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in December
New Plymouth, ID
- Average wind speed in December: 4.3mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity in December
New Plymouth, ID
- Average humidity in December: 78%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (30%).
Average rainfall in December
New Plymouth, ID
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is March (1.61").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in December
New Plymouth, ID
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in December
New Plymouth, ID
- Average snowfall in December: 4.8"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
New Plymouth, ID
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
New Plymouth, ID
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
New Plymouth, ID
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (13.8 days).
Average UV index in December
New Plymouth, ID
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
New Plymouth, ID
- Average cloud cover in December: 43
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in December
New Plymouth, ID
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
New Plymouth, Idaho, USA
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