September weather forecast
Mount Saint Joseph, OH

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Weather in September

September, the first month of the autumn in Mount Saint Joseph, is still a warm month, with an average temperature fluctuating between 59°F (15°C) and 77.9°F (25.5°C).

Temperature

As September commences, the average high-temperature subtly reduces, transitioning from 83.8°F (28.8°C) in August to a still warm 77.9°F (25.5°C). The low-temperature averages to a refreshing 59°F (15°C) during the nights of September.

Humidity

August through October, with an average relative humidity of 74%, are the least humid months.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.4 days and typically collects 1.34" (34mm) of precipitation.

Snowfall

May through September are months without snowfall in Mount Saint Joseph.

Daylight

In Mount Saint Joseph, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 7:07 am and sunset at 8:08 pm. On the last day of September, in Mount Saint Joseph, Ohio, sunrise is at 7:34 am and sunset at 7:22 pm EDT.

Sunshine

The average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September in Mount Saint Joseph is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 5 during September translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Mount Saint Joseph?

The average high-temperature and low-temperature in Mount Saint Joseph during September are 77.9°F (25.5°C) and 59°F (15°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 91.4°F (33°C).

What are the least humid months in Mount Saint Joseph?

August through October, with an average relative humidity of 74%, are the least humid months.

What is the average humidity in September in Mount Saint Joseph?

In September, the average relative humidity in Mount Saint Joseph is 74%.

What is the driest month in Mount Saint Joseph?

The month with the least rainfall in Mount Saint Joseph, Ohio, is September, when the rain falls for 12.4 days and typically collects 1.34" (34mm) of precipitation.

How many days does it rain in September in Mount Saint Joseph?

In Mount Saint Joseph, in September, during 12.4 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow in Mount Saint Joseph?

In Mount Saint Joseph, snow does not fall in May through September.

Does it snow in Mount Saint Joseph in September?

In Mount Saint Joseph, Ohio, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Mount Saint Joseph?

The average day length in September in Mount Saint Joseph, Ohio, is 12h and 26min.

What time are sunrise and sunset in September in Mount Saint Joseph?

On the first day of September, sunrise is at 7:07 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:22 pm EDT.

How long on average sun shines in September in Mount Saint Joseph?

The average sunshine duration in September in Mount Saint Joseph is 8.3h.

What is the UV index intensity in September in Mount Saint Joseph?

In Mount Saint Joseph, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mount Saint Joseph, OH

Average temperature in September - Mount Saint Joseph, OH
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in September
Mount Saint Joseph, OH

Average pressure in September - Mount Saint Joseph, OH
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Mount Saint Joseph, OH

Average wind speed in September - Mount Saint Joseph, OH
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in September
Mount Saint Joseph, OH

Average humidity in September - Mount Saint Joseph, OH
  • Average humidity in September: 74%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August, September and October (74%).

Average rainfall in September
Mount Saint Joseph, OH

Average rainfall in September - Mount Saint Joseph, OH
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days in September
Mount Saint Joseph, OH

Average rainfall days in September - Mount Saint Joseph, OH
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in September
Mount Saint Joseph, OH

Average snowfall in September - Mount Saint Joseph, OH
  • Average snowfall in September: 0"

The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Mount Saint Joseph, OH

Average snowfall days in September - Mount Saint Joseph, OH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Mount Saint Joseph, OH

Average daylight in September / Average sunshine in September - Mount Saint Joseph, OH
  • Average daylight in September: 12h and 2min

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 30min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in September
Mount Saint Joseph, OH

Average sunshine days in September - Mount Saint Joseph, OH
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and June (12 days).

Average UV index in September
Mount Saint Joseph, OH

Average UV index in September - Mount Saint Joseph, OH
  • Average UV index in September: 5

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
Mount Saint Joseph, OH

Average cloud cover in September - Mount Saint Joseph, OH
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Mount Saint Joseph, OH

Average visibility in September - Mount Saint Joseph, OH
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Mount Saint Joseph, Ohio, USA

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