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
September's onset brings a negligible change in high-temperatures, falling from a hot 91.9°F (33.3°C) in August to a moderately hot 84.6°F (29.2°C). The average low-temperature in Henryetta during September nights is a comfortable 64.6°F (18.1°C).Heat index
September's mean heat index is appraised at a hot 91.4°F (33°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In September, the average relative humidity in Henryetta is 69%.Rainfall
In September, the rain falls for 12.3 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 132.2 rainfall days, and 29.49" (749mm) of precipitation is accumulated.Snowfall
In Henryetta, snow does not fall in May through October.Daylight
In Henryetta, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:08 pm CDT.
Sunshine
In September, the average sunshine in Henryetta is 8.7h.UV index
The average daily maximum UV index in September in Henryetta is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
How hot is it in Henryetta in September?
What is the average humidity in September in Henryetta?
How much does it rain in Henryetta in September?
When it does not snow in Henryetta?
How many hours of daylight does Henryetta have in September?
When are sunrise and sunset in September in Henryetta?
How many hours of sunshine does Henryetta have in September?
What is the UV index reading in September in Henryetta?
Average temperature in September
Henryetta, OK
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (48°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Henryetta, OK
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Henryetta, OK
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
Henryetta, OK
- Average humidity in September: 69%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Henryetta, OK
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in September
Henryetta, OK
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in September
Henryetta, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Henryetta, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Henryetta, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Henryetta, OK
- Average sunshine days in September: 16 days
The month with the most sunshine days is January (21.8 days).
The months with the least sunshine days are April and May (14.4 days).
Average UV index in September
Henryetta, 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
Henryetta, OK
- Average cloud cover in September: 28
The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Henryetta, 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).
Henryetta, Oklahoma, USA
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