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
Roy experiences its lowest average temperatures in December, reaching a peak of 42.1°F (5.6°C) and a minimum of 23.9°F (-4.5°C).Humidity
January and December, with an average relative humidity of 61%, are the most humid months.Rainfall
In Roy, during December, the rain falls for 4.3 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 76.1 rainfall days, and 9.17" (233mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Roy, in December, snow falls for 7.9 days, with typically accumulated 4.8" (122mm) of snow. Throughout the year, in Roy, there are 34.6 snowfall days, and 21.57" (548mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:49 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:53 pm MST.
Sunshine
In Roy, the average sunshine in December is 7.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
Is December cold?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
How many days 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 in Roy?
How long on average sun shines in December in Roy?
What are the months with the lowest UV index?
What is the UV index intensity in December in Roy?
Average temperature in December
Roy, NM
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is December (42.1°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in December
Roy, NM
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is April (29.87"Hg).
Average wind speed in December
Roy, NM
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in December
Roy, NM
- Average humidity in December: 61%
The months with the highest relative humidity are January and December (61%).
The months with the lowest relative humidity are April and June (37%).
Average rainfall in December
Roy, NM
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is November (0.47").
Average rainfall days in December
Roy, NM
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is July (11.5 days).
The month with the least rainy days is November (2.6 days).
Average snowfall in December
Roy, NM
- Average snowfall in December: 4.8"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Roy, NM
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is December (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roy, NM
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 7h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and February (Average sunshine: 7h and 0min).
Average sunshine days in December
Roy, NM
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is November (24.6 days).
The month with the least sunshine days is July (17.3 days).
Average UV index in December
Roy, NM
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Roy, NM
- Average cloud cover in December: 20
The months with the most cloud cover are February, July and December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 13).
Average visibility in December
Roy, NM
- 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).
Roy, New Mexico, USA
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