December weather forecastMolalla, OR
December
Weather in December
December, the first month of the winter in Molalla, is still a chilly month, with an average temperature varying between 43.7°F (6.5°C) and 33.3°F (0.7°C).Temperature
With its high average temperature of 43.7°F (6.5°C) and a low of 33.3°F (0.7°C), December is regarded as the coldest month.Humidity
The average relative humidity in December is 84%.Rainfall
The month with the most rainfall is December, when the rain falls for 18.6 days and typically aggregates up to 5.39" (137mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Molalla, in December, snow falls for 0.8 days, with typically accumulated 0.79" (20mm) of snow. Throughout the year, there are 7.3 snowfall days, and 5.91" (150mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:29 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:38 pm PST.
Sunshine
In December, the average sunshine 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 estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Molalla, OR
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is August (79°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in December
Molalla, OR
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Molalla, OR
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is January (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Molalla, OR
- Average humidity in December: 84%
The months with the highest relative humidity are February and March (85%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Molalla, OR
- Average rainfall in December: 5.39"
The wettest month (with the highest rainfall) is December (5.39").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in December
Molalla, OR
- Average rainfall days in December: 18.6 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in December
Molalla, OR
- Average snowfall in December: 0.79"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Molalla, OR
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.9 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
Molalla, OR
- Average daylight in December: 8h and 48min
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: 4h and 18min
The months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Molalla, OR
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in December
Molalla, 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
Molalla, OR
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Molalla, OR
- Average visibility in December: 5mi
The months with the highest visibility are August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, October, November and December (5mi).
