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
As September takes hold, the average high-temperature is a still moderately hot 74.5°F (23.6°C), nearly mirroring that of the previous month. The average nighttime temperature lowers to a refreshing 56.1°F (13.4°C) throughout September.Humidity
In September, the average relative humidity is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 10 days and typically collects 0.79" (20mm) of precipitation.Snowfall
May through October are months without snowfall in Galena.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:59 am and sunset at 8:02 pm. On the last day of September, in Galena, sunrise is at 7:27 am and sunset at 7:14 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Galena, Ohio, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 during September translates into the following guidance:
Take precautions - Protection against skin and eye damage is obliged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What are the temperatures in Galena in September?
What is the average humidity in September in Galena?
What is the driest month in Galena?
How much does it rain in Galena in September?
When it does not snow in Galena?
How many hours of daylight does Galena have in September?
When are sunrise and sunset in September in Galena?
How many hours of sunshine does Galena have in September?
What is the UV index intensity in September in Galena?
Average temperature in September
Galena, OH
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Galena, OH
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Galena, OH
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Galena, OH
- Average humidity in September: 78%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April, October and November (76%).
Average rainfall in September
Galena, OH
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in September
Galena, OH
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (7 days).
Average snowfall in September
Galena, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Galena, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Galena, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Galena, OH
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in September
Galena, OH
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Galena, OH
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Galena, OH
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Galena, Ohio, USA
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