December weather - Winter 2024

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (29.7°F).

Average low temperature in December: 16.7°F

The month with the highest average low temperature is August (56.5°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).

Average pressure in December
Atlanta, ID

Average pressure in December: 30.23"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Atlanta, ID

Average wind speed in December: 5.4mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is January (5.3mph).

Average humidity in December
Atlanta, ID

Average humidity in December: 84%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (33%).

Average rainfall in December
Atlanta, ID

Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is February (3.07").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in December
Atlanta, ID

Average rainfall days in December: 9.2 days

The months with the highest number of rainy days are March and April (14.9 days).
The month with the least rainy days is July (5.3 days).

Average snowfall in December
Atlanta, ID

Average snowfall in December: 17.64"

The month with the highest snowfall is January (20.2").
The months with the least snowfall are July, August and September (0").

Average snowfall days in December
Atlanta, ID

Average snowfall days in December: 14.5 days

The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December /
Average sunshine in December
Atlanta, ID

Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

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
Atlanta, ID

Average sunshine days in December: 14.5 days

The month with the most sunshine days is July (22.7 days).
The month with the least sunshine days is March (10.9 days).

Average UV index in December
Atlanta, ID

Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in December
Atlanta, ID

Average cloud cover in December: 44

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 9).

Average visibility in December
Atlanta, ID

Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).