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 Dover, December is the month with the lowest recorded average temperatures, measuring a high of 28.9°F (-1.7°C) and a low of 18.5°F (-7.5°C).Humidity
In Dover, the average relative humidity in December is 91%.Rainfall
In Dover, in December, during 10.7 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. Throughout the year, there are 151 rainfall days, and 23.98" (609mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 18.2 days. Throughout December, 15" (381mm) of snow is accumulated. In Dover, during the entire year, snow falls for 80.7 days and aggregates up to 61.3" (1557mm) of snow.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:17 am and sunset at 3:54 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:02 pm PST.
Sunshine
In Dover, the average sunshine in December is 3.5h.UV index
The months with the lowest UV index are February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 1 in December translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Dover?
How cold is December?
What is the average humidity in December?
How many days 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?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Dover, ID
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in December
Dover, ID
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in December
Dover, ID
- Average wind speed in December: 3.4mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity in December
Dover, ID
- Average humidity in December: 91%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (53%).
Average rainfall in December
Dover, ID
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is January (3.35").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in December
Dover, ID
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is March (18.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in December
Dover, ID
- Average snowfall in December: 15"
The month with the highest snowfall is January (17.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Dover, ID
- Average snowfall days in December: 18.2 days
The month with the highest number of snowfall days is December (18.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Dover, ID
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Dover, ID
- Average sunshine days in December: 9.9 days
The months with the most sunshine days are July and August (21.4 days).
The month with the least sunshine days is March (7.9 days).
Average UV index in December
Dover, ID
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in December
Dover, ID
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Dover, ID
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January and February (3mi).
Dover, Idaho, USA
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