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
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from 83.8°F (28.8°C) to a still warm 77.9°F (25.5°C). Throughout September, the average low-temperature dips to a moderate 56.5°F (13.6°C).Humidity
The average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall in Rehm. Rain falls for 13 days and accumulates 1.54" (39mm) of precipitation.Snowfall
May through October are months without snowfall in Rehm.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 7:01 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
In Rehm, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What is the usual temperature for Rehm in September?
What is the average humidity in September in Rehm?
What is the driest month in Rehm?
How many days does it rain in September in Rehm?
When it does not snow in Rehm?
How many hours of daylight does Rehm have in September?
What time are sunrise and sunset in September in Rehm?
How long on average sun shines in September in Rehm?
What is the UV index reading in September in Rehm?
Average temperature in September
Rehm, OH
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Rehm, OH
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Rehm, OH
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Rehm, OH
- Average humidity in September: 76%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Rehm, OH
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Rehm, OH
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Rehm, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Rehm, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rehm, OH
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 1min
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 48min).
Average sunshine days in September
Rehm, OH
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in September
Rehm, OH
- Average UV index in September: 4
The months with the highest UV index are May, 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
Rehm, OH
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Rehm, OH
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, February, May, July, August and September (5mi).
Rehm, Ohio, USA
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