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
With the onset of September, Oakley experiences a modest temperature adjustment, with the average high-temperature receding from a tropical 86.9°F (30.5°C) in August to a warm 76.1°F (24.5°C). September nights see a notable contrast from daytime highs, with the nighttime temperature averaging at a fresh 53.8°F (12.1°C).Humidity
The average relative humidity in September is 35%.Rainfall
In Oakley, Idaho, in September, it is raining for 6.3 days, with typically 0.43" (11mm) of accumulated precipitation. In Oakley, during the entire year, the rain falls for 105.2 days and collects up to 10.63" (270mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Oakley. Throughout September, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. In Oakley, during the entire year, snow falls for 50.9 days and aggregates up to 24.57" (624mm) of snow.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 7:01 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:18 pm MDT.
Sunshine
The average sunshine in September is 9.6h.UV index
In Oakley, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Oakley in September?
What is the average humidity in September in Oakley?
How many days does it rain in September in Oakley?
When does it start to snow in Oakley?
What is the average length of the day in September in Oakley?
What time are sunrise and sunset in September in Oakley?
How long on average sun shines in September in Oakley?
What is the UV index reading in September in Oakley?
Average temperature in September
Oakley, ID
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (32.5°F).
- Average low temperature in September: 53.8°F
The months with the highest average low temperature are July and August (60.8°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure in September
Oakley, ID
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Oakley, ID
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is January (7.1mph).
Average humidity in September
Oakley, ID
- Average humidity in September: 35%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (30%).
Average rainfall in September
Oakley, ID
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in September
Oakley, ID
- Average rainfall days in September: 6.3 days
The months with the highest number of rainy days are March and April (14 days).
The months with the least rainy days are July and August (5.2 days).
Average snowfall in September
Oakley, ID
- Average snowfall in September: 0.16"
The month with the highest snowfall is December (6.54").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Oakley, ID
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (13 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Oakley, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- 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 January (Average sunshine: 5h and 42min).
Average sunshine days in September
Oakley, ID
- Average sunshine days in September: 21.6 days
The month with the most sunshine days is July (22.6 days).
The month with the least sunshine days is March (12 days).
Average UV index in September
Oakley, ID
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Oakley, ID
- Average cloud cover in September: 14
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in September
Oakley, ID
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Oakley, Idaho, USA
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