December weather forecastHereford, AZ
December
Weather in December
The first month of the winter, December, is still a mild month in Hereford, Arizona, with an average temperature fluctuating between 37.2°F (2.9°C) and 56.1°F (13.4°C).Temperature
Hereford's December weather, with an average high temperature of 56.1°F (13.4°C) and an average low temperature of 37.2°F (2.9°C), tends to be the coldest of the year.Humidity
With an average relative humidity of 49%, December is the most humid month in Hereford.Rainfall
In Hereford, in December, it is raining for 5.1 days, with typically 0.55" (14mm) of accumulated precipitation. In Hereford, during the entire year, the rain falls for 82 days and collects up to 11.85" (301mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. December is the month with the most snowfall. Snow falls for 1.2 days and accumulates 1.3" (33mm) of snow.Daylight
December has the shortest days of the year in Hereford, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 7:02 am and sunset at 5:17 pm. On the last day of December, sunrise is at 7:19 am and sunset at 5:28 pm MST.
Sunshine
December has the least sunshine of the year, with an average of 7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Hereford. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 3 in December leads to these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hereford, AZ
- Average high temperature in December: 56.1°F
The warmest month (with the highest average high temperature) is June (91°F).
The month with the lowest average high temperature is December (56.1°F).
- Average low temperature in December: 37.2°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).
Average pressure in December
Hereford, AZ
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Hereford, AZ
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Hereford, AZ
- Average humidity in December: 49%
The month with the highest relative humidity is December (49%).
The month with the lowest relative humidity is May (22%).
Average rainfall in December
Hereford, AZ
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are April and May (0.08").
Average rainfall days in December
Hereford, AZ
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is May (2 days).
Average snowfall in December
Hereford, AZ
- Average snowfall in December: 1.3"
The month with the highest snowfall is December (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Hereford, AZ
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is December (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Hereford, AZ
- Average daylight in December: 10h and 6min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Hereford, AZ
- Average sunshine days in December: 24.4 days
The month with the most sunshine days is May (28.6 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in December
Hereford, AZ
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Hereford, AZ
- Average cloud cover in December: 20
The month with the most cloud cover is July (Cloud cover 22).
The month with the least cloud cover is May (Cloud cover 7).
Average visibility in December
Hereford, 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).
