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
Supai's temperature records reveal December as the coldest month, marked by average highs of 43°F (6.1°C) and lows of 26.2°F (-3.2°C).Humidity
In Supai, the average relative humidity in December is 62%.Rainfall
In December, the rain falls for 3.1 days. Throughout December, 0.39" (10mm) of precipitation is accumulated. Throughout the year, there are 46.7 rainfall days, and 4.29" (109mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Supai, in December, snow falls for 5.3 days, with typically accumulated 2.44" (62mm) of snow. In Supai, during the entire year, snow falls for 23 days and aggregates up to 10.24" (260mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 5:16 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:26 pm MST.
Sunshine
The average sunshine in December in Supai is 6.9h.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 threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is it in December?
What is the average humidity in December in Supai?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Supai have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Supai have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Supai, AZ
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).
Average pressure in December
Supai, AZ
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Supai, AZ
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is January (6.6mph).
Average humidity in December
Supai, AZ
- Average humidity in December: 62%
The month with the highest relative humidity is January (64%).
The month with the lowest relative humidity is June (21%).
Average rainfall in December
Supai, AZ
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is March (0.51").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Supai, AZ
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is July (6 days).
The month with the least rainy days is June (1.9 days).
Average snowfall in December
Supai, AZ
- Average snowfall in December: 2.44"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Supai, AZ
- Average snowfall days in December: 5.3 days
The months with the highest number of snowfall days are February and December (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Supai, AZ
- Average daylight in December: 9h and 4min
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 42min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in December
Supai, AZ
- Average sunshine days in December: 23.8 days
The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is February (21.4 days).
Average UV index in December
Supai, AZ
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Supai, 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 7).
Average visibility in December
Supai, 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).
Supai, Arizona, USA
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