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 advent of September, Mount Jefferson experiences an average high-temperature of a still warm 74.1°F (23.4°C), mirroring a close resemblance to the previous month. In September, Mount Jefferson experiences a temperature dip to an average of 56.3°F (13.5°C) at night.Humidity
The average relative humidity in September is 79%.Rainfall
In Mount Jefferson, in September, it is raining for 11.7 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, in Mount Jefferson, there are 147.8 rainfall days, and 21.3" (541mm) of precipitation is accumulated.Snowfall
In Mount Jefferson, snow does not fall in May through September.Daylight
The average length of the day in September in Mount Jefferson is 12h and 26min.On the first day of the month, sunrise is at 7:05 am and sunset at 8:08 pm. On the last day of September, in Mount Jefferson, sunrise is at 7:33 am and sunset at 7:20 pm EDT.
Sunshine
In Mount Jefferson, the average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What is the usual temperature for Mount Jefferson in September?
What is the average humidity in September in Mount Jefferson?
How many days does it rain in September in Mount Jefferson?
When it does not snow in Mount Jefferson?
Does it snow in Mount Jefferson in September?
What is the average length of the day in September in Mount Jefferson?
What time are sunrise and sunset in September in Mount Jefferson?
How many hours of sunshine does Mount Jefferson have in September?
What is the UV index reading in September in Mount Jefferson?
Average temperature in September
Mount Jefferson, OH
- Average high temperature in September: 74.1°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
Mount Jefferson, OH
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Mount Jefferson, OH
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
Mount Jefferson, OH
- Average humidity in September: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Mount Jefferson, OH
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in September
Mount Jefferson, OH
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in September
Mount Jefferson, OH
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Mount Jefferson, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mount Jefferson, OH
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Mount Jefferson, OH
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in September
Mount Jefferson, OH
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Mount Jefferson, OH
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Mount Jefferson, OH
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
Mount Jefferson, Ohio, USA
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