September weather forecastNezperce, ID
September
Weather in September
September, the first month of the autumn in Nezperce, is also a moderately hot month, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 47.3°F (8.5°C).Temperature
A shift in Nezperce's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 82.6°F (28.1°C) to a still warm 73.4°F (23°C). A pronounced dip becomes evident during the nights in September as Nezperce logs a consistent average temperature of 47.3°F (8.5°C).Humidity
The average relative humidity in September is 54%.Rainfall
In September, the rain falls for 7.8 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. In Nezperce, during the entire year, the rain falls for 156.5 days and collects up to 21.38" (543mm) of precipitation.Snowfall
In Nezperce, snow does not fall in May through September.Daylight
In September, the average length of the day in Nezperce is 12h and 31min.On the first day of September, sunrise is at 6:06 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:26 pm PDT.
Sunshine
In September, the average sunshine is 10h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 4 during September leads to these advisories:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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
Nezperce, 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).
