September weather forecastNorthwest, OH
September
Weather in September
September, the first month of the autumn in Northwest, is still a pleasant month, with an average temperature ranging between min 54.7°F (12.6°C) and max 72.5°F (22.5°C).Temperature
September signifies a gentle decline in Northwest's average high-temperature, easing from a warm 78.3°F (25.7°C) in August to a pleasant 72.5°F (22.5°C). Northwest experiences a consistent average temperature of 54.7°F (12.6°C) throughout the nights in September.Humidity
The average relative humidity in September is 80%.Rainfall
In Northwest, Ohio, during September, the rain falls for 13.2 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 166.3 rainfall days, and 28.46" (723mm) of precipitation is accumulated.Snowfall
In Northwest, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 7:05 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:21 pm EDT.
Sunshine
In Northwest, the average sunshine in September is 7.9h.UV index
In Northwest, 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 exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. It's recommended to limit sun exposure when its radiation is at its peak during midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Northwest, OH
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Northwest, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Northwest, OH
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in September
Northwest, OH
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Northwest, OH
- Average rainfall in September: 1.81"
The wettest months (with the highest rainfall) are April and May (3.39").
The driest month (with the least rainfall) is December (1.5").
Average rainfall days in September
Northwest, OH
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Northwest, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Northwest, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Northwest, OH
- Average daylight in September: 12h and 30min
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: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Northwest, OH
- Average sunshine days in September: 15 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in September
Northwest, OH
- Average UV index in September: 4
The month with the highest UV index is August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Northwest, OH
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Northwest, OH
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
