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 brings a minor decrease, with the average high-temperature reducing from a warm 74.7°F (23.7°C) in August to an enjoyable 65.3°F (18.5°C). Tendoy logs a substantial downturn to a cold 40.6°F (4.8°C) during September nights, a considerable shift from daytime highs.Humidity
The average relative humidity in September in Tendoy is 50%.Rainfall
In September, in Tendoy, the rain falls for 9.4 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 129.5 rainfall days, and 12.4" (315mm) of precipitation is accumulated.Snowfall
Months with snowfall in Tendoy are January through May, September through December. September is the first month it typically snows in Tendoy. Throughout September, in the average 0.3 snowfall days, it receives 0.43" (11mm) of snow. In Tendoy, during the entire year, snow falls for 63.5 days and aggregates up to 22.76" (578mm) of snow.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:57 am and sunset at 8:10 pm. On the last day of September, in Tendoy, sunrise is at 7:32 am and sunset at 7:16 pm MDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In Tendoy, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 during September translates into the following guidance:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Tendoy?
What is the average humidity in September in Tendoy?
How much does it rain in Tendoy in September?
When does it start to snow in Tendoy?
How many hours of daylight does Tendoy have in September?
When are sunrise and sunset in September in Tendoy?
How long on average sun shines in September in Tendoy?
How high is the UV index in September in Tendoy?
Average temperature in September
Tendoy, ID
- Average high temperature in September: 65.3°F
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in September: 40.6°F
The month with the highest average low temperature is August (47.5°F).
The coldest months (with the lowest average low temperature) are January and December (9.5°F).
Average pressure in September
Tendoy, ID
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Tendoy, ID
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are March and April (5.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Tendoy, ID
- Average humidity in September: 50%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is August (43%).
Average rainfall in September
Tendoy, ID
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are July and August (0.51").
Average rainfall days in September
Tendoy, ID
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Tendoy, ID
- Average snowfall in September: 0.43"
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Tendoy, ID
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Tendoy, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Tendoy, ID
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is July (19.4 days).
The month with the least sunshine days is April (7.7 days).
Average UV index in September
Tendoy, 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 and December (UV index 1).
Average cloud cover in September
Tendoy, ID
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Tendoy, 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 (4mi).
Tendoy, Idaho, USA
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