September weather forecastWellsville, OH

September

Weather in September

September, the first month of the autumn in Wellsville, is still a warm month, with an average temperature varying between 54.9°F (12.7°C) and 74.8°F (23.8°C).

Temperature

With the arrival of September, Wellsville notices a mild change in the average high-temperature, sliding from August's 81.9°F (27.7°C) to a still moderately hot 74.8°F (23.8°C). Wellsville's nighttime temperature in September drops to an average of 54.9°F (12.7°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Wellsville, during September, the rain falls for 14.2 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, in Wellsville, there are 161.5 rainfall days, and 22.72" (577mm) of precipitation is accumulated.

Snowfall

In Wellsville, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 6:50 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:05 pm EDT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 suggests this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

September temperatures vary between a high-temperature of 74.8°F (23.8°C) and a low-temperature of 54.9°F (12.7°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is computed to be 87.8°F (31°C).

In Wellsville, the average relative humidity in September is 79%.

In Wellsville, in September, during 14.2 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

June through September are months without snowfall.

In Wellsville, in September, it doesn't snow. In October, it regularly snows.

The average day length in September in Wellsville is 12h and 27min.

In September, on the first day of the month, sunrise is at 6:50 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:05 pm EDT.

In Wellsville, the average sunshine duration in September is 8.2h.

In Wellsville, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

81.9°F

74.8°F

61.7°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.2mph

5.5mph

7mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

13.5

13.7

14.3

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Wellsville, OH

Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (32.5°F).

Average low temperature in September: 54.9°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in September
Wellsville, OH

Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Wellsville, OH

Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in September
Wellsville, OH

Average humidity in September: 79%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in September
Wellsville, OH

Average rainfall in September: 1.77"

The wettest months (with the highest rainfall) are April and May (2.24").
The driest month (with the least rainfall) is November (1.54").

Average rainfall days in September
Wellsville, OH

Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in September
Wellsville, OH

Average snowfall in September: 0"

The month with the highest snowfall is January (3.39").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Wellsville, OH

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Wellsville, 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 18min).

Average sunshine in September: 8h and 12min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).