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
The shift into September records an average high-temperature of a moderately hot 84.7°F (29.3°C), subtly varied from August's 89.2°F (31.8°C). The average temperature in Grasmere during September nights dips to an enjoyable 65.1°F (18.4°C).Heat index
The heat index for September is estimated at a hot 93.2°F (34°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. 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 Grasmere, the average relative humidity in September is 74%.Rainfall
In September, in Grasmere, the rain falls for 14 days. Throughout September, 2.52" (64mm) of precipitation is accumulated. In Grasmere, Alabama, during the entire year, the rain falls for 177.1 days and collects up to 41.06" (1043mm) of precipitation.Snowfall
In Grasmere, snow does not fall in April through October.Daylight
In Grasmere, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:10 pm. On the last day of September, in Grasmere, Alabama, sunrise is at 6:39 am and sunset at 6:30 pm CDT.
Sunshine
In September, the average sunshine in Grasmere is 8.7h.UV index
In September, the average daily maximum UV index in Grasmere is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Act with care - The need to guard against sun damage is communicated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
Is it hot in Grasmere during September?
What is the average humidity in September in Grasmere?
How much does it rain in Grasmere in September?
When it does not snow in Grasmere?
What is the average length of the day in September in Grasmere?
When are sunrise and sunset in September in Grasmere?
How long on average sun shines in September in Grasmere?
What is the UV index reading in September in Grasmere?
Average temperature in September
Grasmere, AL
- 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 (50.9°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Grasmere, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Grasmere, AL
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in September
Grasmere, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Grasmere, AL
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is October (2.28").
Average rainfall days in September
Grasmere, AL
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in September
Grasmere, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Grasmere, AL
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Grasmere, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Grasmere, AL
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in September
Grasmere, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Grasmere, AL
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, September and October (Cloud cover 31).
Average visibility in September
Grasmere, AL
- 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).
Grasmere, Alabama, USA
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