December weather forecastMcCook, NE
December
Weather in December
As the year culminates in December, winter makes its grand arrival in McCook. The onset of frosty weather with the return of snowfall at an average of 1.57" (40mm) signifies the commencement of the festive holiday season. Residents kick off their holiday festivities by decorating their homes, sipping on festive warm beverages, and embracing the spirit of the winter wonderland. Despite the cold, the jovial atmosphere makes the season a special time to be in the city.Temperature
December is the month when McCook experiences its coldest temperatures, averaging a high of 39.4°F (4.1°C) and a low of 23.9°F (-4.5°C).Humidity
The average relative humidity in December is 67%.Rainfall
In McCook, in December, during 2.9 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, in McCook, Nebraska, there are 103 rainfall days, and 15.94" (405mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in McCook. In McCook, during December, snow falls for 5 days and regularly aggregates up to 1.57" (40mm) of snow. In McCook, during the entire year, snow falls for 23.9 days and aggregates up to 9.88" (251mm) of snow.Daylight
The month with the shortest days in McCook is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:46 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:26 pm CST.
Sunshine
In December, the average sunshine in McCook is 6.3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
McCook, NE
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
McCook, NE
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
McCook, NE
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in December
McCook, NE
- Average humidity in December: 67%
The month with the highest relative humidity is January (68%).
The months with the lowest relative humidity are July and October (54%).
Average rainfall in December
McCook, NE
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
McCook, NE
- Average rainfall days in December: 2.9 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in December
McCook, NE
- Average snowfall in December: 1.57"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
McCook, NE
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
McCook, NE
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 6h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in December
McCook, NE
- Average sunshine days in December: 23.7 days
The months with the most sunshine days are January and November (24.3 days).
The month with the least sunshine days is August (13.1 days).
Average UV index in December
McCook, NE
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
McCook, NE
- Average cloud cover in December: 32
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is June (Cloud cover 20).
Average visibility in December
McCook, NE
- 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).
