Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Grimshaw indicates an average high-temperature of a warm 84.7°F (29.3°C) in September, showing minor variation from August's 88.9°F (31.6°C). In September, the nighttime temperature lowers to an average of 68.2°F (20.1°C).Heat index
The average heat index in September is calculated to be a sweltering 95°F (35°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Grimshaw, the average relative humidity in September is 77%.Rainfall
In Grimshaw, in September, during 13.1 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 140.8 rainfall days, and 17.09" (434mm) of precipitation is accumulated.Snowfall
In Grimshaw, Georgia, snow does not fall in March through December.Daylight
In Grimshaw, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:12 pm EDT.
Sunshine
In Grimshaw, the average sunshine in September is 8.5h.UV index
In Grimshaw, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during September leads to these instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
How hot does it get in Grimshaw in September?
What is the average humidity in September in Grimshaw?
How much does it rain in Grimshaw in September?
When it does not snow in Grimshaw?
What is the average length of the day in September in Grimshaw?
When is the sunrise / sunset in September in Grimshaw?
How long on average sun shines in September in Grimshaw?
How high is the UV index in September in Grimshaw?
Average temperature in September
Grimshaw, GA
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in September: 68.2°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in September
Grimshaw, GA
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Grimshaw, GA
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Grimshaw, GA
- Average humidity in September: 77%
The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is January (71%).
Average rainfall in September
Grimshaw, GA
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is August (2.44").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in September
Grimshaw, GA
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (5.8 days).
Average snowfall in September
Grimshaw, GA
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Grimshaw, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Grimshaw, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Grimshaw, GA
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is August (8.9 days).
Average UV index in September
Grimshaw, GA
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Grimshaw, GA
- Average cloud cover in September: 33
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Grimshaw, GA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Grimshaw, Georgia, USA
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