September weather forecast and climate
Mechanicsburg, OH

The first month of the autumn, September, is also a moderately hot month in Mechanicsburg, Ohio, with average temperature ranging between min 56.1°F (13.4°C) and max 74.1°F (23.4°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a still moderately hot 74.1°F (23.4°C). The average low-temperature, in Mechanicsburg, is 56.1°F (13.4°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Mechanicsburg, during September, the rain falls for 12.5 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, in Mechanicsburg, there are 148.3 rainfall days, and 21.57" (548mm) of precipitation is accumulated.

Snowfall

In Mechanicsburg snow does not fall in May through October.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In Mechanicsburg, the average sunshine in September is 8.1h.

UV index

In September, the average daily maximum UV index in Mechanicsburg, Ohio, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Mechanicsburg?

The average high-temperature, in September, in Mechanicsburg, Ohio, is 74.1°F (23.4°C), while the average low-temperature is 56.1°F (13.4°C).

What is the average humidity in September in Mechanicsburg?

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

How many days does it rain in September in Mechanicsburg?

In Mechanicsburg, Ohio, in September, it is raining for 12.5 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow in Mechanicsburg?

May through October are months without snowfall in Mechanicsburg, Ohio.

How many hours of daylight does Mechanicsburg have in September?

In Mechanicsburg, the average length of the day in September is 12.4h.

How many hours of sunshine does Mechanicsburg have in September?

The average sunshine in September is 8.1h.

What is the UV index reading in September in Mechanicsburg?

The average daily maximum UV index in September in Mechanicsburg is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - Mechanicsburg, OH
  • Average high temperature in September: 23.4°C

The warmest month (with the highest average high temperature) is July (26.8°C).
The month with the lowest average high temperature is January (0.1°C).

  • Average low temperature in September: 13.4°C

The month with the highest average low temperature is July (17.6°C).
The coldest month (with the lowest average low temperature) is January (-6.5°C).

Average pressure in September - Mechanicsburg, OH
  • Average pressure in September: 1017.2mbar

The month with the highest atmospheric pressure is November (1020.4mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in September - Mechanicsburg, OH
  • Average wind speed in September: 10.4km/h

The windiest month (with the highest average wind speed) is January (16.9km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).

Average humidity in September - Mechanicsburg, OH
  • Average humidity in September: 79%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September - Mechanicsburg, OH
  • Average rainfall in September: 36mm

The wettest month (with the highest rainfall) is May (76mm).
The driest month (with the least rainfall) is November (31mm).

Average rainfall days in September - Mechanicsburg, OH
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (6.5 days).

Average snowfall in September - Mechanicsburg, OH
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (48mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September - Mechanicsburg, OH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.9 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Mechanicsburg, OH
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 8.1h

Months with the most sunshine are July and August (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 3.4h).

Average sunshine days in September - Mechanicsburg, OH
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (10.3 days).

Average UV index in September - Mechanicsburg, OH
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September - Mechanicsburg, 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 - Mechanicsburg, OH
  • Average visibility in September: 8km

Months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).