September weather forecast
Atlanta, ID

• Average temperature in September
• Average pressure in September
• Average wind speed in September
• Average humidity in September
• Average rainfall in September
• Average rainfall days in September
• Average snowfall in September
• Average snowfall days in September
• Average daylight in September
• Average sunshine in September
• Average sunshine days in September
• Average UV index in September
• Average cloud cover in September
• Average visibility in September

Average temperature in September
Atlanta, ID

• Average high temperature in September: 70.7°F

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 September: 49.1°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 September
Atlanta, ID

• Average pressure in September: 29.94"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 September
Atlanta, ID

• Average wind speed in September: 5.8mph

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 September
Atlanta, ID

• Average humidity in September: 41%

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

Average rainfall in September
Atlanta, ID

• Average rainfall in September: 0.75"

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 September
Atlanta, ID

• Average rainfall days in September: 7.5 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 September
Atlanta, ID

• Average snowfall in September: 0"

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 September
Atlanta, ID

• Average snowfall days in September: 0.1 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 September /
Average sunshine in September
Atlanta, ID

• Average daylight in September: 12h and 3min

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 September: 9h and 3min

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 September
Atlanta, ID

• Average sunshine days in September: 21 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 September
Atlanta, ID

• Average UV index in September: 4

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 September
Atlanta, ID

• Average cloud cover in September: 15

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 September
Atlanta, ID

• Average visibility in September: 6mi

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).