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
As August transitions into September, Blanchard sees a drop in the average high-temperature, transitioning from a moderately hot 81°F (27.2°C) to an agreeable 69.6°F (20.9°C). Blanchard records a pronounced decline from the day's peak to an average nighttime low-temperature of 43.5°F (6.4°C) throughout September.Humidity
In Blanchard, the average relative humidity in September is 60%.Rainfall
In Blanchard, in September, it is raining for 8.2 days, with typically 0.83" (21mm) of accumulated precipitation. In Blanchard, during the entire year, the rain falls for 140.8 days and collects up to 23.03" (585mm) of precipitation.Snowfall
Months with snowfall are January through April, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, there are 77 snowfall days, and 59.17" (1503mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 6:07 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:28 pm PDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Blanchard, ID
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (29.5°F).
- Average low temperature in September: 43.5°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).
Average pressure in September
Blanchard, ID
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in September
Blanchard, ID
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.3mph).
Average humidity in September
Blanchard, ID
- Average humidity in September: 60%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (51%).
Average rainfall in September
Blanchard, ID
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is January (3.31").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in September
Blanchard, ID
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is March (18.7 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in September
Blanchard, ID
- Average snowfall in September: 0.43"
The month with the highest snowfall is January (17.44").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in September
Blanchard, ID
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (17.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Blanchard, ID
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Blanchard, ID
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is August (25.1 days).
The months with the least sunshine days are February and March (7.8 days).
Average UV index in September
Blanchard, 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, November and December (UV index 1).
Average cloud cover in September
Blanchard, ID
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Blanchard, ID
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
Blanchard, Idaho, USA
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