September weather forecastLawrenceville, OH
September
Weather in September
September, the first month of the autumn in Lawrenceville, is still a warm month, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 74.3°F (23.5°C).Temperature
The commencement of September records an average high-temperature of a still moderately hot 74.3°F (23.5°C), barely varying from August's 79.3°F (26.3°C). An average low-temperature of 56.7°F (13.7°C) is recorded in the month of September.Humidity
The average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.5 days and typically collects 1.97" (50mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 7:04 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:31 am and sunset at 7:18 pm EDT.
Sunshine
The average sunshine in September is 8h.UV index
In Lawrenceville, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lawrenceville, OH
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in September: 56.7°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 (20.7°F).
Average pressure in September
Lawrenceville, 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 (29.93"Hg).
Average wind speed in September
Lawrenceville, OH
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
Lawrenceville, OH
- Average humidity in September: 78%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Lawrenceville, OH
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Lawrenceville, OH
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in September
Lawrenceville, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lawrenceville, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lawrenceville, OH
- Average daylight in September: 12h and 24min
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 0min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Lawrenceville, OH
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Lawrenceville, 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, October, November and December (UV index 2).
Average cloud cover in September
Lawrenceville, OH
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Lawrenceville, OH
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February and September (5mi).
