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
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
What part of the year is the coldest in Hayden?
How cold is it in Hayden in December?
What is the average humidity in December in Hayden?
How many days does it rain in December in Hayden?
How much does it snow in Hayden in December?
What is the month with the shortest days in Hayden?
How many hours of daylight does Hayden have in December?
When is the sunrise / sunset in December in Hayden?
What is the month with the least sunshine in Hayden?
How long on average sun shines in December in Hayden?
What are the months with the lowest UV index in Hayden?
What is the UV index reading in December in Hayden?
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 3min
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 2min
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).
Hayden, Idaho, USA
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