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
May experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a tropical 91.9°F (33.3°C) in August to a warm 83.8°F (28.8°C). May's average low-temperature for the month of September records at a refreshing 64.9°F (18.3°C).Heat index
September's heat index is computed to be a tropical 86°F (30°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In May, the average relative humidity in September is 58%.Rainfall
In September, the rain falls for 11.4 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. In May, during the entire year, the rain falls for 96.5 days and collects up to 16.46" (418mm) of precipitation.Snowfall
May through September are months without snowfall in May.Daylight
In May, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 7:10 am and sunset at 8:06 pm. On the last day of September, in May, Oklahoma, sunrise is at 7:34 am and sunset at 7:23 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
In May, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
How hot does it get in May in September?
What is the average humidity in September in May?
How much does it rain in May in September?
When it does not snow in May?
Does it snow in May in September?
How many hours of daylight does May have in September?
What time are sunrise and sunset in September in May?
How long on average sun shines in September in May?
How high is the UV index in September in May?
Average temperature in September
May, OK
- Average high temperature in September: 83.8°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (46.9°F).
- Average low temperature in September: 64.9°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
May, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
May, OK
- Average wind speed in September: 11.5mph
The windiest month (with the highest average wind speed) is April (13.9mph).
The calmest month (with the lowest average wind speed) is August (10.3mph).
Average humidity in September
May, OK
- Average humidity in September: 58%
The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is July (52%).
Average rainfall in September
May, OK
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is October (2.2").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in September
May, OK
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is August (12.8 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in September
May, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
May, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
May, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
May, OK
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is August (15.1 days).
Average UV index in September
May, 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
May, OK
- Average cloud cover in September: 23
The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in September
May, 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).
May, Oklahoma, USA
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