September weather forecastTrimble, OH
September
Weather in September
September, the first month of the autumn in Trimble, is still a warm month, with an average temperature varying between 77.9°F (25.5°C) and 56.3°F (13.5°C).Temperature
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 84.6°F (29.2°C) to a still warm 77.9°F (25.5°C). Trimble reports a marked divergence from daytime peaks throughout September, with lows averaging at a refreshing 56.3°F (13.5°C).Humidity
In Trimble, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.4 days and typically collects 1.85" (47mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Trimble, the average length of the day in September is 12h and 26min.On the first day of September in Trimble, sunrise is at 6:57 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:11 pm EDT.
Sunshine
The average sunshine in September in Trimble is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trimble, OH
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
Trimble, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Trimble, OH
- Average wind speed in September: 5mph
The windiest months (with the highest average wind speed) are January and February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in September
Trimble, OH
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Trimble, OH
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Trimble, OH
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (10 days).
Average snowfall in September
Trimble, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Trimble, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Trimble, OH
- Average daylight in September: 12h and 24min
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 24min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Trimble, OH
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is February (10.2 days).
Average UV index in September
Trimble, 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
Trimble, OH
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Trimble, OH
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).





