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
A moderate decline in the average high-temperature is seen during September, decreasing from a warm 79.9°F (26.6°C) in August to a pleasant 68.5°F (20.3°C). With a notable difference from peak temperatures, an average of 41.9°F (5.5°C) marks the nights in September.Humidity
The average relative humidity in September is 62%.Rainfall
In Wrencoe, in September, during 9.5 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Wrencoe, during the entire year, the rain falls for 151 days and collects up to 23.98" (609mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.59" (15mm) of snow. In Wrencoe, during the entire year, snow falls for 80.7 days and aggregates up to 61.3" (1557mm) of snow.Daylight
The average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:27 pm PDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
In Wrencoe, 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: In September, the maximum UV index of 3 transforms into these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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 many days does it rain in September?
When does it start to snow?
How many hours of daylight does Wrencoe have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Wrencoe, ID
- Average high temperature in September: 68.5°F
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in September: 41.9°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in September
Wrencoe, 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
Wrencoe, ID
- Average wind speed in September: 3.8mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity in September
Wrencoe, ID
- Average humidity in September: 62%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (53%).
Average rainfall in September
Wrencoe, ID
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is January (3.35").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in September
Wrencoe, ID
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is March (18.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in September
Wrencoe, ID
- Average snowfall in September: 0.59"
The month with the highest snowfall is January (17.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Wrencoe, ID
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (18.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Wrencoe, 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 24min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Wrencoe, ID
- Average sunshine days in September: 18.5 days
The months with the most sunshine days are July and August (21.4 days).
The month with the least sunshine days is March (7.9 days).
Average UV index in September
Wrencoe, 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 February, November and December (UV index 1).
Average cloud cover in September
Wrencoe, ID
- Average cloud cover in September: 25
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Wrencoe, 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 and February (3mi).
Wrencoe, Idaho, USA
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