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
With an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 25.2°F (-3.8°C), December is the coldest month.Humidity
In December, the average relative humidity is 83%.Rainfall
The month with the most rainfall is December, when the rain falls for 8.4 days and typically aggregates up to 2.09" (53mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. December is the month with the most snowfall. Snow falls for 13.5 days and accumulates 10.63" (270mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:17 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:45 pm PST.
Sunshine
In December, the average sunshine is 5.4h.UV index
The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in December?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
When does it snow the most?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Klamath Falls have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Klamath Falls have in December?
What is the UV index intensity in December?
Average temperature in December
Klamath Falls, OR
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (48.6°F).
The coldest month (with the lowest average low temperature) is December (25.2°F).
Average pressure in December
Klamath Falls, OR
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in December
Klamath Falls, OR
- Average wind speed in December: 5.3mph
The windiest months (with the highest average wind speed) are March and April (6.3mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity in December
Klamath Falls, OR
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Klamath Falls, OR
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is December (2.09").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in December
Klamath Falls, OR
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is April (13.1 days).
The month with the least rainy days is August (3.6 days).
Average snowfall in December
Klamath Falls, OR
- Average snowfall in December: 10.63"
The month with the highest snowfall is December (10.63").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Klamath Falls, OR
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Klamath Falls, OR
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- 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 January (Average sunshine: 5h and 18min).
Average sunshine days in December
Klamath Falls, OR
- Average sunshine days in December: 13.6 days
The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in December
Klamath Falls, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Klamath Falls, OR
- Average cloud cover in December: 46
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in December
Klamath Falls, OR
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Klamath Falls, Oregon, USA
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