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 is the coldest month, exhibiting average temperatures of 46°F (7.8°C) at the peak and 34.2°F (1.2°C) at the base.Humidity
February and December, with an average relative humidity of 87%, are the most humid months in Santa Clara.Rainfall
The month with the most rainfall in Santa Clara is December, when the rain falls for 19.1 days and typically aggregates up to 4.45" (113mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, in Santa Clara, it is snowing for 0.4 days. Throughout December, 0.31" (8mm) of snow is accumulated. In Santa Clara, during the entire year, snow falls for 4.8 days and aggregates up to 3.58" (91mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:35 pm. On the last day of December, in Santa Clara, sunrise is at 7:47 am and sunset at 4:44 pm PST.
Sunshine
In Santa Clara, the average sunshine in December is 4.3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What part of the year is the coldest in Santa Clara?
What is the average December temperature in Santa Clara?
What are the most humid months in Santa Clara?
What is the average humidity in December in Santa Clara?
What is the wettest month in Santa Clara?
How many days does it rain in December in Santa Clara?
How many days does it snow in December in Santa Clara?
What is the month with the shortest days in Santa Clara?
How many hours of daylight does Santa Clara have in December?
What time are sunrise and sunset in December in Santa Clara?
How many hours of sunshine does Santa Clara have in December?
When is the lowest UV index in Santa Clara?
What is the UV index intensity in December in Santa Clara?
Average temperature in December
Santa Clara, OR
- Average high temperature in December: 46°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in December
Santa Clara, OR
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in December
Santa Clara, OR
- Average wind speed in December: 4.5mph
The windiest months (with the highest average wind speed) are January, February, March and December (4.5mph).
The calmest months (with the lowest average wind speed) are August and September (3.7mph).
Average humidity in December
Santa Clara, OR
- Average humidity in December: 87%
The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Santa Clara, OR
- Average rainfall in December: 4.45"
The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in December
Santa Clara, OR
- Average rainfall days in December: 19.1 days
The month with the highest number of rainy days is March (19.8 days).
The months with the least rainy days are July and August (3.8 days).
Average snowfall in December
Santa Clara, OR
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Santa Clara, OR
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (2.3 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
Santa Clara, 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: 4h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Santa Clara, OR
- Average sunshine days in December: 10.9 days
The months with the most sunshine days are July and August (25.3 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in December
Santa Clara, OR
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Santa Clara, OR
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Santa Clara, OR
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
Santa Clara, Oregon, USA
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