December weather forecastHayden, ID
December
Weather in December
December brings back the winter season in its full glory, with the maximum temperature sliding to a winter low of 31.3°F (-0.4°C). The city grapples with a high volume of snowfall, second only to January's figures, recording 13.66" (347mm). The extreme winter weather takes over Hayden, Idaho as the year draws to a close. The combination of scaled-back daylight, an increase in cloud cover, and reduced visibility characterizes the weather conditions. Despite the rigor of winter, the city transforms into a festive wonderland, making it an enchanting time to experience the snowy holiday season.Temperature
With average temperatures fluctuating between a high of 31.3°F (-0.4°C) and a low of 21.2°F (-6°C), December stands out as the coldest month.Humidity
In Hayden, the average relative humidity in December is 90%.Rainfall
In December, in Hayden, the rain falls for 10.8 days. Throughout December, 3.15" (80mm) of precipitation is accumulated. In Hayden, during the entire year, the rain falls for 141.2 days and collects up to 22.6" (574mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Hayden, during December, snow falls for 16.9 days and regularly aggregates up to 13.66" (347mm) of snow. In Hayden, during the entire year, snow falls for 71.8 days and aggregates up to 56.54" (1436mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 30min of daylight.On the first day of December in Hayden, sunrise is at 7:15 am and sunset at 3:57 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:05 pm PST.
Sunshine
With an average of 3.4h of sunshine, December has the least sunshine of the year in Hayden.UV index
The months with the lowest UV index in Hayden are February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hayden, ID
- Average high temperature in December: 31.3°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).
Average pressure in December
Hayden, ID
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in December
Hayden, ID
- Average wind speed in December: 3.9mph
The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is December (3.9mph).
Average humidity in December
Hayden, ID
- Average humidity in December: 90%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (48%).
Average rainfall in December
Hayden, ID
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is January (3.27").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in December
Hayden, ID
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in December
Hayden, ID
- Average snowfall in December: 13.66"
The month with the highest snowfall is January (16.57").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Hayden, ID
- Average snowfall days in December: 16.9 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Hayden, ID
- Average daylight in December: 8h and 30min
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 24min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in December
Hayden, ID
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in December
Hayden, 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 February, November and December (UV index 1).
Average cloud cover in December
Hayden, ID
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Hayden, ID
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
