September weather forecastGibbonsville, ID
September
Weather in September
September, the first month of the autumn in Gibbonsville, is still a refreshing month, with an average temperature fluctuating between 66.2°F (19°C) and 39.4°F (4.1°C).Temperature
September weather is marked by a drop in the average high-temperature, falling from a moderately hot 75.9°F (24.4°C) in August to a refreshing 66.2°F (19°C). Despite the intense daytime heat, Gibbonsville sustains a steady low-temperature average of 39.4°F (4.1°C) during September.Humidity
In September, the average relative humidity is 55%.Rainfall
In Gibbonsville, Idaho, in September, it is raining for 7.4 days, with typically 0.71" (18mm) of accumulated precipitation. In Gibbonsville, during the entire year, the rain falls for 93.6 days and collects up to 15.43" (392mm) of precipitation.Snowfall
January through December are months with snowfall in Gibbonsville. In Gibbonsville, in September, during 2.2 snowfall days, 1.42" (36mm) of snow is typically accumulated. In Gibbonsville, Idaho, during the entire year, snow falls for 129.3 days and aggregates up to 94.92" (2411mm) of snow.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:58 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:17 pm MDT.
Sunshine
In Gibbonsville, Idaho, the average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gibbonsville, ID
- Average high temperature in September: 66.2°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is December (24.1°F).
- Average low temperature in September: 39.4°F
The month with the highest average low temperature is August (45.3°F).
The coldest month (with the lowest average low temperature) is December (9.5°F).
Average pressure in September
Gibbonsville, ID
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Gibbonsville, ID
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is November (5.2mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Gibbonsville, ID
- Average humidity in September: 55%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (48%).
Average rainfall in September
Gibbonsville, ID
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in September
Gibbonsville, ID
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is June (11.7 days).
The months with the least rainy days are January, August and December (5.2 days).
Average snowfall in September
Gibbonsville, ID
- Average snowfall in September: 1.42"
The month with the highest snowfall is February (14.8").
The month with the least snowfall is July (0.12").
Average snowfall days in September
Gibbonsville, ID
- Average snowfall days in September: 2.2 days
The month with the highest number of snowfall days is March (20.3 days).
The month with the least snowfall days is July (0.2 days).
Average daylight in September /
Average sunshine in September
Gibbonsville, ID
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Gibbonsville, ID
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (8.8 days).
Average UV index in September
Gibbonsville, ID
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Gibbonsville, ID
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Gibbonsville, ID
- Average visibility in September: 6mi
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).
