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
Alfalfa's coldest weather arrives in December, when temperatures average a high of 36.1°F (2.3°C) and a low of 24.3°F (-4.3°C).Humidity
With an average relative humidity of 81%, December is the most humid month.Rainfall
In Alfalfa, Oregon, during December, the rain falls for 5.6 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 65.5 rainfall days, and 5.67" (144mm) of precipitation is accumulated.Snowfall
Months with snowfall in Alfalfa, Oregon, are January through April, September through December. In Alfalfa, during December, snow falls for 4.8 days and regularly aggregates up to 1.65" (42mm) of snow. In Alfalfa, during the entire year, snow falls for 20.9 days and aggregates up to 9.02" (229mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:35 pm PST.
Sunshine
With an average of 5.4h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index in Alfalfa are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What time of the year is the coldest in Alfalfa?
How cold is December in Alfalfa?
What is the most humid month in Alfalfa?
What is the average humidity in December in Alfalfa?
How much does it rain in Alfalfa in December?
How much does it snow in Alfalfa in December?
What is the month with the shortest days in Alfalfa?
How many hours of daylight does Alfalfa have in December?
What time are sunrise and sunset in December in Alfalfa?
What is the month with the least sunshine in Alfalfa?
How long on average sun shines in December in Alfalfa?
When is the lowest UV index in Alfalfa?
What is the UV index reading in December in Alfalfa?
Average temperature in December
Alfalfa, OR
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is December (36.1°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).
Average pressure in December
Alfalfa, OR
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in December
Alfalfa, OR
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.7mph).
Average humidity in December
Alfalfa, 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 (43%).
Average rainfall in December
Alfalfa, OR
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (0.67").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Alfalfa, OR
- Average rainfall days in December: 5.6 days
The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is July (2 days).
Average snowfall in December
Alfalfa, OR
- Average snowfall in December: 1.65"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Alfalfa, OR
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is December (4.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Alfalfa, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Alfalfa, OR
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (19.5 days).
Average UV index in December
Alfalfa, 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
Alfalfa, OR
- Average cloud cover in December: 45
The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in December
Alfalfa, OR
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
Alfalfa, Oregon, USA
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