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
With September's onset, the weather shows a temperature decrease, transitioning from a tropical 94.6°F (34.8°C) in August to a moderately hot 85.3°F (29.6°C). Alma records an average nighttime low of 66.2°F (19°C) in September.Heat index
September's mean heat index is calculated to be a hot 91.4°F (33°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In September, the average relative humidity is 64%.Rainfall
In September, the rain falls for 13 days. Throughout September, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 124.2 rainfall days, and 25.43" (646mm) of precipitation is accumulated.Snowfall
In Alma, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September in Alma, sunrise is at 7:04 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:15 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Alma is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
How hot does it get in Alma in September?
What is the average humidity in September in Alma?
How many days does it rain in September in Alma?
When it does not snow in Alma?
How many hours of daylight does Alma have in September?
When is the sunrise / sunset in September in Alma?
How many hours of sunshine does Alma have in September?
How high is the UV index in September in Alma?
Average temperature in September
Alma, OK
- Average high temperature in September: 85.3°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (50.7°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Alma, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Alma, OK
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).
Average humidity in September
Alma, OK
- Average humidity in September: 64%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
Alma, OK
- Average rainfall in September: 2.8"
The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and November (1.1").
Average rainfall days in September
Alma, OK
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
Alma, OK
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Alma, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Alma, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Alma, OK
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in September
Alma, OK
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Alma, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Alma, OK
- 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).
Alma, Oklahoma, USA
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