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
December is marked by a significant decrease, with the average high-temperature retreating from a cold 41°F (5°C) in November to a subzero cold 26.4°F (-3.1°C). An average low-temperature of 14.7°F (-9.6°C) marks the nights throughout December.Humidity
The average relative humidity in December is 82%.Rainfall
January and December are months with the least rain in Haley when the rain falls for 3.7 days and typically aggregates up to 0.55" (14mm) of rain.Snowfall
Months with snowfall are January through May, September through December. In Haley, in December, snow falls for 12.2 days, with typically accumulated 2.95" (75mm) of snow. In Haley, North Dakota, during the entire year, snow falls for 63.8 days and aggregates up to 23.62" (600mm) of snow.Daylight
December has the shortest days of the year in Haley, North Dakota, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 7:14 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:17 pm MST.
Sunshine
The average sunshine in December is 5h.UV index
February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Haley?
What is the average humidity in December in Haley?
What is the driest month in Haley?
How much does it rain in Haley in December?
How much does it snow in Haley in December?
What is the month with the shortest days in Haley?
How many hours of daylight does Haley have in December?
When are sunrise and sunset in December in Haley?
How many hours of sunshine does Haley have in December?
What is the month with the lowest UV index in Haley?
What is the UV index reading in December in Haley?
Average temperature in December
Haley, ND
- Average high temperature in December: 26.4°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 14.7°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Haley, ND
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Haley, ND
- Average wind speed in December: 11.6mph
The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.8mph).
Average humidity in December
Haley, ND
- Average humidity in December: 82%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Haley, ND
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (2.32").
The driest months (with the least rainfall) are January and December (0.55").
Average rainfall days in December
Haley, ND
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is November (2.5 days).
Average snowfall in December
Haley, ND
- Average snowfall in December: 2.95"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Haley, ND
- Average snowfall days in December: 12.2 days
The month with the highest number of snowfall days is December (12.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Haley, ND
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Haley, ND
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is April (12.2 days).
Average UV index in December
Haley, ND
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in December
Haley, ND
- Average cloud cover in December: 50
The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in December
Haley, ND
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Haley, North Dakota, USA
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