September weather forecast and climate
Bryan, OH

September, the first month of the autumn, in Bryan, is still a warm month, with average temperature ranging between max 73.4°F (23°C) and min 55.2°F (12.9°C).

Temperature

In Bryan, the average high-temperature in September is relatively the same as in August - a still warm 73.4°F (23°C). In Bryan, the average low-temperature is 55.2°F (12.9°C).

Humidity

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

Rainfall

In Bryan, Ohio, during September, the rain falls for 12.6 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Bryan, during the entire year, the rain falls for 158.5 days and collects up to 28.07" (713mm) of precipitation.

Snowfall

In Bryan snow does not fall in June through September.

Daylight

The average length of the day in Bryan is 12.5h.

Sunshine

The average sunshine is 7.8h.

UV index

In Bryan, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 4 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 Bryan?

The average high-temperature, in September, in Bryan, is 73.4°F (23°C), while the average low-temperature is 55.2°F (12.9°C).

What is the average humidity in September in Bryan?

In September, the average relative humidity is 79%.

How much does it rain in Bryan in September?

In Bryan, Ohio, during September, the rain falls for 12.6 days and regularly aggregates up to 1.77" (45mm) of precipitation.

Does it snow in Bryan in September?

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

When it does not snow in Bryan?

In Bryan snow does not fall in June through September.

How many hours of daylight does Bryan have in September?

In Bryan, Ohio, the average length of the day in September is 12.5h.

How long on average sun shines in September in Bryan?

The average sunshine in September in Bryan is 7.8h.

What is the UV index reading in September in Bryan?

In Bryan, Ohio, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - Bryan, OH
  • Average high temperature in September: 73.4°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 (30°F).

  • Average low temperature in September: 55.2°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

Average pressure in September - Bryan, OH
  • Average pressure in September: 30.04"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed in September - Bryan, OH
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September - Bryan, OH
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is December (1.54").

Average rainfall days in September - Bryan, OH
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in September - Bryan, OH
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.66").
Months with the least snowfall are June, July, August and September (0").

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

The month with the highest number of snowfall days is January (13.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Bryan, OH
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 7.8h

The month with the most sunshine is July (Average sunshine: 10.1h).
The month with the least sunshine is January (Average sunshine: 3.2h).

Average sunshine days in September - Bryan, OH
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is February (9.5 days).

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

Months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September - Bryan, OH
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in September - Bryan, OH
  • Average visibility in September: 5mi

Months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
Months with the lowest visibility are January, February, August and September (5mi).