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
The beginning of September involves a decrease in the average high-temperature, transitioning from a moderately hot 79.2°F (26.2°C) in August to an agreeable 69.3°F (20.7°C). A stark contrast in day to night temperatures can be seen in September, with an average low-temperature of 43.7°F (6.5°C).Humidity
The average relative humidity in September is 48%.Rainfall
In China Hill, in September, during 8.9 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In China Hill, during the entire year, the rain falls for 100.3 days and collects up to 15.39" (391mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow. Throughout the year, there are 106.2 snowfall days, and 69.33" (1761mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:53 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:09 pm MDT.
Sunshine
In September, the average sunshine is 10h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does China Hill have in September?
What is the UV index reading in September?
Average temperature in September
China Hill, ID
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in September: 43.7°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure in September
China Hill, ID
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
China Hill, ID
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is June (5.9mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in September
China Hill, ID
- Average humidity in September: 48%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in September
China Hill, ID
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in September
China Hill, ID
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in September
China Hill, ID
- Average snowfall in September: 0.39"
The month with the highest snowfall is January (14.41").
The months with the least snowfall are July and August (0").
Average snowfall days in September
China Hill, ID
- Average snowfall days in September: 0.5 days
The months with the highest number of snowfall days are February and December (19.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
China Hill, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
China Hill, ID
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is July (19.1 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in September
China Hill, 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 and December (UV index 1).
Average cloud cover in September
China Hill, ID
- Average cloud cover in September: 16
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in September
China Hill, 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 and February (3mi).
China Hill, Idaho, USA
Weather forecast for your location
2. Allow the app to use your location