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
The average high-temperature shows a slight dip in September, from August's moderately hot 80.8°F (27.1°C) to a still warm 74.3°F (23.5°C). Throughout September, Alliance experiences a low-temperature average of 54.5°F (12.5°C).Humidity
In Alliance, the average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall in Alliance. Rain falls for 15.5 days and accumulates 1.89" (48mm) of precipitation.Snowfall
In Alliance, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:07 pm EDT.
Sunshine
In Alliance, the average sunshine in September is 8.2h.UV index
In Alliance, Ohio, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Guard yourself - Avoiding sunburn is suggested. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Alliance?
What is the average humidity in September in Alliance?
What is the driest month in Alliance?
How many days does it rain in September in Alliance?
When it does not snow in Alliance?
Does it snow in Alliance in September?
How many hours of daylight does Alliance have in September?
When are sunrise and sunset in September in Alliance?
How many hours of sunshine does Alliance have in September?
What is the UV index reading in September in Alliance?
Average temperature in September
Alliance, OH
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Alliance, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Alliance, OH
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in September
Alliance, OH
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in September
Alliance, OH
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is July (2.99").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Alliance, OH
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in September
Alliance, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Alliance, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alliance, OH
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Alliance, OH
- Average sunshine days in September: 13 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is February (7.7 days).
Average UV index in September
Alliance, OH
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Alliance, OH
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Alliance, OH
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Alliance, Ohio, USA
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