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
September weather is marked by a drop in the average high-temperature, falling from a moderately hot 74.1°F (23.4°C) in August to an enjoyable 64.9°F (18.3°C). Throughout September nights, Victor reports a steady thermal contrast from the day, with an average low-temperature of 40.1°F (4.5°C).Humidity
In September, the average relative humidity is 54%.Rainfall
In September, the rain falls for 9.5 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. Throughout the year, there are 96.6 rainfall days, and 32.95" (837mm) of precipitation is accumulated.Snowfall
January through June, August through December are months with snowfall. In Victor, in September, during 2.5 snowfall days, 4.49" (114mm) of snow is typically accumulated. In Victor, during the entire year, snow falls for 160.8 days and aggregates up to 200.16" (5084mm) of snow.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:06 pm MDT.
Sunshine
In Victor, the average sunshine in September is 9.9h.UV index
In Victor, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 3 during September translates into the following guidance:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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?
How much does it snow in September?
How many hours of daylight does Victor have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Victor have in September?
What is the UV index intensity in September?
Average temperature in September
Victor, ID
- Average high temperature in September: 64.9°F
The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is December (23.2°F).
- Average low temperature in September: 40.1°F
The month with the highest average low temperature is July (46.9°F).
The coldest month (with the lowest average low temperature) is December (7.7°F).
Average pressure in September
Victor, ID
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Victor, ID
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).
Average humidity in September
Victor, ID
- Average humidity in September: 54%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Victor, ID
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in September
Victor, ID
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Victor, ID
- Average snowfall in September: 4.49"
The month with the highest snowfall is February (34.33").
The month with the least snowfall is July (0").
Average snowfall days in September
Victor, ID
- Average snowfall days in September: 2.5 days
The month with the highest number of snowfall days is March (23.6 days).
The month with the least snowfall days is July (0.1 days).
Average daylight in September /
Average sunshine in September
Victor, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in September
Victor, ID
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is July (20.3 days).
The month with the least sunshine days is April (6.2 days).
Average UV index in September
Victor, 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, March, October, November and December (UV index 1).
Average cloud cover in September
Victor, ID
- Average cloud cover in September: 20
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Victor, 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 (3mi).
Victor, Idaho, USA
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