September weather forecastKamiah, ID
September
Weather in September
The arrival of September signals the commencement of fall in Kamiah, tempting folks to unpack their sweaters. Compared to the near-drought conditions of August, September showers a bit more rain across Kamiah alongside cooler temperatures. The city experiences a gradual decline in daylight duration, balanced by mildly gusty winds reaching speeds of up to 6.1mph (9.8km/h). Notably, the transition from September's lowest temperature at 47.3°F (8.5°C) to October's cooler 37.6°F (3.1°C) is a clear sign of fall setting in. As the city moves towards October, expect a further decrease in temperatures and a mild increase in precipitation.Temperature
Welcoming September, Kamiah observes a shift in the average high-temperature, falling from August's warm 82.6°F (28.1°C) to a still moderately hot 73.4°F (23°C). Kamiah anticipates a pronounced temperature drop from daily highs during the nights of September, with an average low of 47.3°F (8.5°C).Humidity
The average relative humidity in September in Kamiah is 54%.Rainfall
In Kamiah, during September, the rain falls for 7.8 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Kamiah, during the entire year, the rain falls for 156.5 days and collects up to 21.38" (543mm) of precipitation.Snowfall
In Kamiah, snow does not fall in May through September.Daylight
In Kamiah, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:22 pm. On the last day of September, in Kamiah, sunrise is at 6:42 am and sunset at 6:25 pm PDT.
Sunshine
The average sunshine in September in Kamiah is 10h.UV index
In Kamiah, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kamiah, ID
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in September: 47.3°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).
Average pressure in September
Kamiah, ID
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).
Average wind speed in September
Kamiah, ID
- Average wind speed in September: 3.7mph
The windiest month (with the highest average wind speed) is March (4.4mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in September
Kamiah, ID
- Average humidity in September: 54%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (48%).
Average rainfall in September
Kamiah, ID
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is March (2.56").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in September
Kamiah, ID
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is August (5.4 days).
Average snowfall in September
Kamiah, ID
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Kamiah, ID
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (8.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kamiah, ID
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Kamiah, ID
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is July (23.2 days).
The month with the least sunshine days is April (9.1 days).
Average UV index in September
Kamiah, ID
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Kamiah, ID
- Average cloud cover in September: 20
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Kamiah, ID
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
