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
Essex's December weather, with an average high temperature of 23.2°F (-4.9°C) and an average low temperature of 11.3°F (-11.5°C), tends to be the coldest of the year.Humidity
In December, the average relative humidity in Essex is 92%.Rainfall
In Essex, during December, the rain falls for 5.5 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Essex, Montana, during the entire year, the rain falls for 118.6 days and collects up to 20.75" (527mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Essex. In Essex, during December, snow falls for 22.8 days and regularly aggregates up to 19.17" (487mm) of snow. In Essex, Montana, during the entire year, snow falls for 128.7 days and aggregates up to 92.13" (2340mm) of snow.Daylight
The month with the shortest days in Essex, Montana, is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 8:05 am and sunset at 4:42 pm. On the last day of December, in Essex, sunrise is at 8:25 am and sunset at 4:50 pm MST.
Sunshine
In Essex, the average sunshine in December is 3.2h.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Essex. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: An average UV index of 1 in December transforms into this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Essex?
How cold is December in Essex?
What is the average humidity in December in Essex?
How much does it rain in Essex in December?
How much does it snow in Essex in December?
What is the month with the shortest days in Essex?
What is the average length of the day in December in Essex?
When are sunrise and sunset in December in Essex?
How many hours of sunshine does Essex have in December?
What is the month with the lowest UV index in Essex?
What is the UV index reading in December in Essex?
Average temperature in December
Essex, MT
- Average high temperature in December: 23.2°F
The warmest month (with the highest average high temperature) is July (73°F).
The month with the lowest average high temperature is December (23.2°F).
- Average low temperature in December: 11.3°F
The months with the highest average low temperature are July and August (44.2°F).
The coldest month (with the lowest average low temperature) is February (10.9°F).
Average pressure in December
Essex, MT
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Essex, MT
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is November (7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Essex, MT
- Average humidity in December: 92%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (56%).
Average rainfall in December
Essex, MT
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is January (2.56").
The driest month (with the least rainfall) is August (0.71").
Average rainfall days in December
Essex, MT
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Essex, MT
- Average snowfall in December: 19.17"
The month with the highest snowfall is January (20.16").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Essex, MT
- Average snowfall days in December: 22.8 days
The month with the highest number of snowfall days is December (22.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Essex, MT
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Essex, MT
- Average sunshine days in December: 8 days
The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in December
Essex, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Essex, MT
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in December
Essex, MT
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Essex, Montana, USA
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