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
December, known for its average high temperature of 37.9°F (3.3°C) and an average low temperature of 27.1°F (-2.7°C), is the coldest month.Humidity
In December, the average relative humidity in Ione, Oregon, is 78%.Rainfall
In Ione, in December, it is raining for 12.8 days, with typically 1.65" (42mm) of accumulated precipitation. In Ione, during the entire year, the rain falls for 131.9 days and collects up to 13.54" (344mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Ione. In Ione, during December, snow falls for 9.2 days and regularly aggregates up to 3.66" (93mm) of snow. In Ione, during the entire year, snow falls for 31.3 days and aggregates up to 18.54" (471mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 4:17 pm. On the last day of December, in Ione, sunrise is at 7:39 am and sunset at 4:26 pm PST.
Sunshine
The average sunshine in December is 5.4h.UV index
The months with the lowest UV index in Ione 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 rays for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What are the coldest months in Ione?
Is December cold in Ione?
What is the average humidity in December in Ione?
How much does it rain in Ione in December?
How many days does it snow in December in Ione?
What is the month with the shortest days in Ione?
How many hours of daylight does Ione have in December?
What time are sunrise and sunset in December in Ione?
How many hours of sunshine does Ione have in December?
What is the month with the lowest UV index in Ione?
What is the UV index intensity in December in Ione?
Average temperature in December
Ione, OR
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in December: 27.1°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in December
Ione, OR
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
Ione, OR
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).
Average humidity in December
Ione, OR
- Average humidity in December: 78%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in December
Ione, OR
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Ione, OR
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is March (17 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in December
Ione, OR
- Average snowfall in December: 3.66"
The month with the highest snowfall is February (6.61").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Ione, OR
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is December (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Ione, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 5h and 2min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 18min).
Average sunshine days in December
Ione, OR
- Average sunshine days in December: 12.8 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (9.5 days).
Average UV index in December
Ione, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Ione, OR
- Average cloud cover in December: 45
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in December
Ione, OR
- 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).
Ione, Oregon, USA
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