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
The coldest month is December, with an average high-temperature of 42.8°F (6°C) and an average low-temperature of 32.9°F (0.5°C).Humidity
January and December, with an average relative humidity of 87%, are the most humid months in Graham.Rainfall
The month with the most rainfall in Graham is December, when the rain falls for 18.4 days and typically aggregates up to 4.92" (125mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Graham, during December, snow falls for 1.4 days and regularly aggregates up to 0.31" (8mm) of snow. In Graham, Washington, during the entire year, snow falls for 10.3 days and aggregates up to 5.94" (151mm) of snow.Daylight
With an average of 8h and 35min of daylight, December has the shortest days of the year in Graham.On the first day of the month, sunrise is at 7:34 am and sunset at 4:22 pm. On the last day of December, in Graham, Washington, sunrise is at 7:55 am and sunset at 4:29 pm PST.
Sunshine
December has the least sunshine of the year in Graham, Washington, with an average of 4.1h of sunshine.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 2 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
FAQ
What is the coldest month in Graham?
What is the temperature in December in Graham?
What is the most humid month in Graham?
What is the average humidity in December in Graham?
What is the rainiest month in Graham?
How much does it rain in Graham in December?
How much does it snow in Graham in December?
What is the month with the shortest days in Graham?
What is the average length of the day in December in Graham?
When is the sunrise / sunset in December in Graham?
What is the month with the least sunshine in Graham?
How many hours of sunshine does Graham have in December?
What are the months with the lowest UV index in Graham?
How high is the UV index in December in Graham?
Average temperature in December
Graham, WA
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is August (51.3°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in December
Graham, WA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in December
Graham, WA
- Average wind speed in December: 4.5mph
The windiest months (with the highest average wind speed) are January and March (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Graham, WA
- Average humidity in December: 87%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Graham, WA
- Average rainfall in December: 4.92"
The wettest month (with the highest rainfall) is December (4.92").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in December
Graham, WA
- Average rainfall days in December: 18.4 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in December
Graham, WA
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Graham, WA
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Graham, WA
- Average daylight in December: 8h and 35min
The month with the longest days is June (Average daylight: 15h and 50min).
The month with the shortest days is December (Average daylight: 8h and 35min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in December
Graham, WA
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is November (9.3 days).
Average UV index in December
Graham, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Graham, WA
- Average cloud cover in December: 58
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Graham, WA
- Average visibility in December: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January and February (4mi).
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