Hiram
Georgia, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Hiram, GA

September, the first month of the autumn, in Hiram, is also a moderately hot month, with average temperature varying between 83.7°F (28.7°C) and 65.1°F (18.4°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a moderately hot 83.7°F (28.7°C). The average low-temperature, in September, is 65.1°F (18.4°C).

Heat index

The average heat index is calculated to a tropical 90.3°F (32.4°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, differences in body mass, height, and shape, pregnancy). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity in Hiram is 72%.

Rainfall

In Hiram, Georgia, in September, during 13.3 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 178.7 rainfall days, and 41.5" (1054mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

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

Sunshine

The average sunshine in Hiram, Georgia, is 8.6h.

UV index

In Hiram, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. 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 Hiram?

The average high-temperature, in September, in Hiram, Georgia, is 83.7°F (28.7°C), while the average low-temperature is 65.1°F (18.4°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), that calculates temperature value influenced by the moisture in the air, is estimated at 90.3°F (32.4°C).

What is the average humidity in September in Hiram?

The average relative humidity in September in Hiram is 72%.

How many days does it rain in September in Hiram?

In Hiram, Georgia, in September, it is raining for 13.3 days, with typically 2.8" (71mm) of accumulated precipitation.

When it does not snow in Hiram?

April through October are months without snowfall in Hiram.

How many hours of daylight does Hiram have in September?

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

How long on average sun shines in September in Hiram?

In Hiram, Georgia, the average sunshine in September is 8.6h.

What is the UV index reading in September in Hiram?

In Hiram, Georgia, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.
Average temperature in September - Hiram, GA
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (49.8°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

Average humidity in September - Hiram, GA
  • Average humidity in September: 72%

The month with the highest relative humidity is December (78%).
Months with the lowest relative humidity are July and August (71%).

Average rainfall in September - Hiram, GA
  • Average rainfall in September: 2.8"

The wettest month (with the highest rainfall) is August (5.08").
The driest month (with the least rainfall) is October (2.17").

Average rainfall days in September - Hiram, GA
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (22.1 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in September - Hiram, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.79").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September - Hiram, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (1.2 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Hiram, GA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 8.6h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 5.1h).

Average UV index in September - Hiram, GA
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).