Contents
- Weather in September
- Frequently asked questions
- 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
Weather in September
Temperature
Transition into September marks a drop in the average high-temperature, moving from a warm 80.2°F (26.8°C) in August to a pleasant 69.6°F (20.9°C). Fernwood endures a clear shift from daytime heat to a mean low-temperature of 43°F (6.1°C) during September nights.Humidity
The average relative humidity in September is 61%.Rainfall
In Fernwood, during September, the rain falls for 7.2 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Fernwood, during the entire year, the rain falls for 118.6 days and collects up to 16.89" (429mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Fernwood. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In Fernwood, during the entire year, snow falls for 60.4 days and aggregates up to 44.53" (1131mm) of snow.Daylight
In September, the average length of the day in Fernwood, Idaho, is 12h and 32min.On the first day of September, sunrise is at 6:05 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:26 pm PDT.
Sunshine
In Fernwood, the average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 3 in September leads to these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. To guard against the harmful effects of the Sun, minimize exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What is the temperature in September in Fernwood?
What is the average humidity in September in Fernwood?
How much does it rain in Fernwood in September?
When does it start snowing in Fernwood?
How many hours of daylight does Fernwood have in September?
When is the sunrise / sunset in September in Fernwood?
How long on average sun shines in September in Fernwood?
What is the UV index reading in September in Fernwood?
Average temperature in September
Fernwood, ID
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (31.5°F).
- Average low temperature in September: 43°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (20.8°F).
Average pressure in September
Fernwood, ID
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in September
Fernwood, ID
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are August and September (3.9mph).
Average humidity in September
Fernwood, ID
- Average humidity in September: 61%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (52%).
Average rainfall in September
Fernwood, ID
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is January (2.24").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in September
Fernwood, ID
- Average rainfall days in September: 7.2 days
The month with the highest number of rainy days is April (14.4 days).
The month with the least rainy days is July (5.4 days).
Average snowfall in September
Fernwood, ID
- Average snowfall in September: 0.08"
The month with the highest snowfall is January (11.73").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Fernwood, ID
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Fernwood, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 30min).
Average sunshine days in September
Fernwood, ID
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is February (10.1 days).
Average UV index in September
Fernwood, ID
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Fernwood, ID
- Average cloud cover in September: 24
The months with the most cloud cover are January, February and December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Fernwood, ID
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January and February (3mi).
Fernwood, Idaho, USA
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