December weather forecastRigby, ID
December
Weather in December
December in Rigby welcomes the onset of winter, enveloping the city in a chilly embrace. The weather is markedly different from November, with the city being the most shrouded in clouds this month. The average high temperature dips to 27.1°F (-2.7°C), with lows at 14.9°F (-9.5°C), emphasizing the stark contrast from the earlier fall months. Snowfall increases significantly highlighting the deep winter season. As the coldest month approaches, Rigby transforms into a winter wonderland once again, bringing the year to a close.Temperature
With average high temperatures of 27.1°F (-2.7°C) and lows of 14.9°F (-9.5°C), December is the coldest month.Humidity
The average relative humidity in December is 87%.Rainfall
In Rigby, during December, the rain falls for 9.5 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Rigby, during the entire year, the rain falls for 112.3 days and collects up to 10.94" (278mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Rigby, Idaho, in December, during 17.1 snowfall days, 6.22" (158mm) of snow is typically accumulated. Throughout the year, in Rigby, Idaho, there are 79 snowfall days, and 31.54" (801mm) of snow is accumulated.Daylight
The month with the shortest days in Rigby is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:42 am and sunset at 4:51 pm. On the last day of December, sunrise is at 8:01 am and sunset at 5:00 pm MST.
Sunshine
In Rigby, the average sunshine in December is 5.1h.UV index
January 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 unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 1 in December translates into this advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rigby, ID
- Average high temperature in December: 27.1°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in December: 14.9°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in December
Rigby, ID
- Average pressure in December: 30.26"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Rigby, ID
- Average wind speed in December: 5.1mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in December
Rigby, ID
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (37%).
Average rainfall in December
Rigby, ID
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in December
Rigby, ID
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is April (14.2 days).
The month with the least rainy days is July (5.8 days).
Average snowfall in December
Rigby, ID
- Average snowfall in December: 6.22"
The month with the highest snowfall is January (8.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Rigby, ID
- Average snowfall days in December: 17.1 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Rigby, ID
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Rigby, ID
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in December
Rigby, 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 January and December (UV index 1).
Average cloud cover in December
Rigby, ID
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in December
Rigby, ID
- Average visibility in December: 4mi
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 and December (4mi).
