December weather forecastHorn, AZ
December
Weather in December
The first month of the winter, December, is also an enjoyable month in Horn, Arizona, with an average temperature fluctuating between 64.8°F (18.2°C) and 49.6°F (9.8°C).Temperature
Horn reaches its lowest average temperatures in December, measuring 64.8°F (18.2°C) at the peak and 49.6°F (9.8°C) at the lowest.Humidity
With an average relative humidity of 40%, December is the most humid month.Rainfall
In Horn, in December, it is raining for 3.8 days, with typically 0.39" (10mm) of accumulated precipitation. In Horn, Arizona, during the entire year, the rain falls for 39.5 days and collects up to 4.06" (103mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:19 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:38 pm MST.
Sunshine
The month with the least sunshine is December, with an average of 7.1h of sunshine.UV index
November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 4 translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Horn, AZ
- Average high temperature in December: 64.8°F
The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.8°F).
- Average low temperature in December: 49.6°F
The month with the highest average low temperature is August (86.2°F).
The coldest months (with the lowest average low temperature) are January and December (49.6°F).
Average pressure in December
Horn, AZ
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).
Average wind speed in December
Horn, AZ
- Average wind speed in December: 5.6mph
The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).
Average humidity in December
Horn, AZ
- Average humidity in December: 40%
The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (21%).
Average rainfall in December
Horn, AZ
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in December
Horn, AZ
- Average rainfall days in December: 3.8 days
The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is May (1 days).
Average daylight in December /
Average sunshine in December
Horn, 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: 7h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in December
Horn, AZ
- Average sunshine days in December: 27.2 days
The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in December
Horn, AZ
- Average UV index in December: 4
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 4).
Average cloud cover in December
Horn, AZ
- Average cloud cover in December: 18
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in December
Horn, 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).
