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 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
December is the coldest month, exhibiting average temperatures of 58.1°F (14.5°C) at the peak and 41.2°F (5.1°C) at the base.Humidity
The most humid month is December, with an average relative humidity of 49%.Rainfall
In December, the rain falls for 7.5 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. In Hayden, during the entire year, the rain falls for 83.1 days and collects up to 11.81" (300mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:27 pm MST.
Sunshine
December has the least sunshine of the year, with an average of 6.6h of sunshine.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In December, an average UV index of 3 transforms into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Hayden?
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December in Hayden?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Hayden, AZ
- Average high temperature in December: 58.1°F
The warmest month (with the highest average high temperature) is June (95°F).
The month with the lowest average high temperature is December (58.1°F).
- Average low temperature in December: 41.2°F
The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in December
Hayden, AZ
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Hayden, AZ
- Average wind speed in December: 5.9mph
The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Hayden, AZ
- Average humidity in December: 49%
The month with the highest relative humidity is December (49%).
The month with the lowest relative humidity is June (19%).
Average rainfall in December
Hayden, AZ
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is July (1.81").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in December
Hayden, AZ
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is May (3.2 days).
Average snowfall days in December
Hayden, AZ
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Hayden, AZ
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 4min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in December
Hayden, AZ
- Average sunshine days in December: 22.7 days
The month with the most sunshine days is May (27.2 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Hayden, AZ
- Average UV index in December: 3
The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
Hayden, AZ
- Average cloud cover in December: 24
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 8).
Average visibility in December
Hayden, AZ
- 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).
Hayden, Arizona, USA
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