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, on average, is the coldest month, registering a high temperature of 32.5°F (0.3°C) and a low of 20.5°F (-6.4°C).Humidity
In La Grande, the average relative humidity in December is 84%.Rainfall
December is the month with the most rainfall. Rain falls for 12.5 days and accumulates 2.48" (63mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In La Grande, in December, snow falls for 13.2 days, with typically accumulated 8.62" (219mm) of snow. In La Grande, during the entire year, snow falls for 56.6 days and aggregates up to 36.85" (936mm) of snow.Daylight
The month with the shortest days in La Grande is December, with an average of 8h and 48min of daylight.On the first day of December in La Grande, sunrise is at 7:12 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:19 pm PST.
Sunshine
The average sunshine in December in La Grande, Oregon, is 5.3h.UV index
January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in La Grande. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the coldest month in La Grande?
How cold is December in La Grande?
What is the average humidity in December in La Grande?
What is the rainiest month in La Grande?
How many days does it rain in December in La Grande?
How much does it snow in La Grande in December?
What is the month with the shortest days in La Grande?
How many hours of daylight does La Grande have in December?
When is the sunrise / sunset in December in La Grande?
How long on average sun shines in December in La Grande?
What is the month with the lowest UV index in La Grande?
How high is the UV index in December in La Grande?
Average temperature in December
La Grande, OR
- Average high temperature in December: 32.5°F
The warmest month (with the highest average high temperature) is August (81.3°F).
The month with the lowest average high temperature is December (32.5°F).
- Average low temperature in December: 20.5°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (20.5°F).
Average pressure in December
La Grande, OR
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
La Grande, OR
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
La Grande, OR
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is August (45%).
Average rainfall in December
La Grande, OR
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is December (2.48").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
La Grande, OR
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in December
La Grande, OR
- Average snowfall in December: 8.62"
The month with the highest snowfall is February (10.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
La Grande, OR
- Average snowfall days in December: 13.2 days
The month with the highest number of snowfall days is December (13.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
La Grande, 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 6min).
Average sunshine days in December
La Grande, OR
- Average sunshine days in December: 11.9 days
The month with the most sunshine days is July (23.4 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in December
La Grande, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in December
La Grande, OR
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
La Grande, OR
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
La Grande, Oregon, USA
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