December weather forecastPocatello, ID
December
Weather in December
December in Pocatello, Idaho, welcomes the true essence of winter with its frigid temperatures and beautiful snowfall. Indeed, climatological data supports this with the high temperature plunging to an average of 29.7°F (-1.3°C), lower than November's 43°F (6.1°C). Iconic Christmas celebrations imbue enthusiasm in citizens, despite the reduced daylight hours. Despite the chill, the splendor of twinkling lights and the warmth of spirits keep the city alive. By the close of the year, Pocatello holds its head high, promising a new beginning with the onset of another year.Temperature
December is Pocatello's coldest month, registering average high temperatures of 29.7°F (-1.3°C) and lows of 17.8°F (-7.9°C).Humidity
The average relative humidity in December in Pocatello is 84%.Rainfall
In Pocatello, in December, it is raining for 9.8 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, there are 116.1 rainfall days, and 11.26" (286mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 15.7 days. Throughout December, 6.77" (172mm) of snow is accumulated. Throughout the year, there are 70.2 snowfall days, and 31.61" (803mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December in Pocatello, sunrise is at 7:41 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:05 pm MST.
Sunshine
The average sunshine in December is 5.4h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 1 in December transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Pocatello, ID
- Average high temperature in December: 29.7°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in December: 17.8°F
The month with the highest average low temperature is August (57.4°F).
The coldest months (with the lowest average low temperature) are January and December (17.8°F).
Average pressure in December
Pocatello, ID
- Average pressure in December: 30.26"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Pocatello, ID
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is January (6.9mph).
Average humidity in December
Pocatello, ID
- Average humidity in December: 84%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (33%).
Average rainfall in December
Pocatello, ID
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in December
Pocatello, ID
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is July (6.3 days).
Average snowfall in December
Pocatello, ID
- Average snowfall in December: 6.77"
The month with the highest snowfall is January (8.27").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Pocatello, ID
- Average snowfall days in December: 15.7 days
The month with the highest number of snowfall days is February (15.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Pocatello, ID
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Pocatello, ID
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in December
Pocatello, ID
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Pocatello, ID
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in December
Pocatello, ID
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
