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
The shift into December in Hillsboro brings a noticeable decrease in the average high-temperature, falling from an icy 36.5°F (2.5°C) in November to a freezing cold 19.9°F (-6.7°C). In Hillsboro, an average temperature of 8.6°F (-13°C) is noted during December nights.Humidity
In Hillsboro, North Dakota, the average relative humidity in December is 89%.Rainfall
In Hillsboro, in December, it is raining for 3.1 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 103 rainfall days, and 18.35" (466mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 14.6 days and typically aggregates up to 4.53" (115mm) of snow.Daylight
December has the shortest days of the year in Hillsboro, North Dakota, with an average of 8h and 30min of daylight.On the first day of December in Hillsboro, sunrise is at 7:55 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 8:15 am and sunset at 4:47 pm CST.
Sunshine
In Hillsboro, the average sunshine in December is 3.4h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: An average maximum UV index of 1 in December leads to these recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold is it in Hillsboro in December?
What is the average humidity in December in Hillsboro?
How many days does it rain in December in Hillsboro?
What is the snowiest month in Hillsboro?
How much does it snow in Hillsboro in December?
What is the month with the shortest days in Hillsboro?
How many hours of daylight does Hillsboro have in December?
When are sunrise and sunset in December in Hillsboro?
How long on average sun shines in December in Hillsboro?
When is the lowest UV index in Hillsboro?
What is the UV index reading in December in Hillsboro?
Average temperature in December
Hillsboro, ND
- Average high temperature in December: 19.9°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is January (15.6°F).
- Average low temperature in December: 8.6°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (1.6°F).
Average pressure in December
Hillsboro, ND
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Hillsboro, ND
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is October (10.7mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in December
Hillsboro, ND
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (61%).
Average rainfall in December
Hillsboro, ND
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is June (3.46").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in December
Hillsboro, ND
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.2 days).
Average snowfall in December
Hillsboro, ND
- Average snowfall in December: 4.53"
The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hillsboro, ND
- Average snowfall days in December: 14.6 days
The month with the highest number of snowfall days is December (14.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Hillsboro, ND
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Hillsboro, ND
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is September (20.1 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in December
Hillsboro, ND
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Hillsboro, ND
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Hillsboro, ND
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Hillsboro, North Dakota, USA
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