December weather forecastLamont, WA
December
Weather in December
December, the first month of the winter in Lamont, is also an icy month, with temperature in the range of an average high of 33.1°F (0.6°C) and an average low of 23.9°F (-4.5°C).Temperature
December, with its high-temperature average of 33.1°F (0.6°C) and a low-temperature average of 23.9°F (-4.5°C), is the coldest month.Humidity
In Lamont, the average relative humidity in December is 85%.Rainfall
In Lamont, during December, the rain falls for 6.5 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 84.3 rainfall days, and 7.24" (184mm) of precipitation is accumulated.Snowfall
January through May, September, November and December are months with snowfall. In Lamont, in December, snow falls for 9.3 days, with typically accumulated 2.91" (74mm) of snow. In Lamont, during the entire year, snow falls for 32.5 days and aggregates up to 14.09" (358mm) of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Lamont, Washington.On the first day of the month, sunrise is at 7:18 am and sunset at 4:03 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:11 pm PST.
Sunshine
With an average of 4.3h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lamont, WA
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (33.1°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in December
Lamont, WA
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).
Average wind speed in December
Lamont, WA
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Lamont, WA
- Average humidity in December: 85%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (36%).
Average rainfall in December
Lamont, WA
- Average rainfall in December: 0.79"
The wettest months (with the highest rainfall) are January and May (0.91").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Lamont, WA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is March (10.1 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in December
Lamont, WA
- Average snowfall in December: 2.91"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and October (0").
Average snowfall days in December
Lamont, WA
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is December (9.3 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Lamont, WA
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in December
Lamont, WA
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is February (15.9 days).
Average UV index in December
Lamont, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Lamont, WA
- Average cloud cover in December: 55
The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in December
Lamont, WA
- 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).
