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 temperatures occur during December, when averages reach a peak of 37°F (2.8°C) and a low of 25.7°F (-3.5°C).Humidity
With an average relative humidity of 81%, December is the most humid month in Terrebonne, Oregon.Rainfall
December is the month with the most rainfall in Terrebonne. Rain falls for 13.4 days and accumulates 1.73" (44mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In December, in Terrebonne, it is snowing for 12.1 days. Throughout December, 5.63" (143mm) of snow is accumulated. Throughout the year, in Terrebonne, there are 51.4 snowfall days, and 24.53" (623mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of December in Terrebonne, Oregon, sunrise is at 7:21 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:35 pm PST.
Sunshine
January and December, with an average of 5.6h of sunshine, are months with the least sunshine in Terrebonne.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Terrebonne. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 2 during December translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What are the coldest months in Terrebonne?
How cold is it in Terrebonne in December?
What is the most humid month in Terrebonne?
What is the average humidity in December in Terrebonne?
What is the wettest month in Terrebonne?
How much does it rain in Terrebonne in December?
How many days does it snow in December in Terrebonne?
What is the month with the shortest days in Terrebonne?
What is the average length of the day in December in Terrebonne?
What time are sunrise and sunset in December in Terrebonne?
What are the months with the least sunshine in Terrebonne?
How many hours of sunshine does Terrebonne have in December?
What are the months with the lowest UV index in Terrebonne?
What is the UV index reading in December in Terrebonne?
Average temperature in December
Terrebonne, OR
- Average high temperature in December: 37°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 (37°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).
Average pressure in December
Terrebonne, OR
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in December
Terrebonne, OR
- Average wind speed in December: 6.3mph
The windiest months (with the highest average wind speed) are March and April (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).
Average humidity in December
Terrebonne, OR
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (47%).
Average rainfall in December
Terrebonne, OR
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is December (1.73").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Terrebonne, OR
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is March (16.1 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in December
Terrebonne, OR
- Average snowfall in December: 5.63"
The month with the highest snowfall is February (6.26").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Terrebonne, OR
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is December (12.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Terrebonne, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in December
Terrebonne, OR
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (10.2 days).
Average UV index in December
Terrebonne, 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, November and December (UV index 2).
Average cloud cover in December
Terrebonne, OR
- Average cloud cover in December: 44
The month with the most cloud cover is December (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in December
Terrebonne, OR
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Terrebonne, Oregon, USA
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