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 shift from August to September involves a decrease in the average high-temperature, dropping from a tropical 88.3°F (31.3°C) to a moderately hot 77.5°F (25.3°C). Despite higher daytime temperatures, nighttime averages fall to a cool 54.3°F (12.4°C) in September.Humidity
In Wendell, Idaho, the average relative humidity in September is 35%.Rainfall
In Wendell, Idaho, in September, during 6.4 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, in Wendell, there are 104.7 rainfall days, and 9.57" (243mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Wendell.Daylight
In September, the average length of the day in Wendell is 12h and 28min.On the first day of the month, sunrise is at 7:04 am and sunset at 8:12 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:21 pm MDT.
Sunshine
In Wendell, the average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September in Wendell, Idaho, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Wendell?
What is the average humidity in September in Wendell?
How many days does it rain in September in Wendell?
When it does not snow in Wendell?
Does it snow in Wendell in September?
What is the average length of the day in September in Wendell?
What time are sunrise and sunset in September in Wendell?
How many hours of sunshine does Wendell have in September?
What is the UV index reading in September in Wendell?
Average temperature in September
Wendell, ID
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (33.4°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is December (22.6°F).
Average pressure in September
Wendell, ID
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Wendell, ID
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Wendell, ID
- Average humidity in September: 35%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is July (28%).
Average rainfall in September
Wendell, ID
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in September
Wendell, ID
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is March (14.2 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in September
Wendell, ID
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.63").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Wendell, ID
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wendell, 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: 9h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Wendell, ID
- Average sunshine days in September: 21.4 days
The month with the most sunshine days is October (22 days).
The month with the least sunshine days is March (13.3 days).
Average UV index in September
Wendell, ID
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Wendell, ID
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in September
Wendell, ID
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Wendell, Idaho, USA
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