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
Neff's September weather shows a modest shift in high-temperatures, falling from August's hot 92.5°F (33.6°C) to a warm 85.3°F (29.6°C). During September, Neff notes a substantial drop from the daytime peak to an average minimum temperature of 63.5°F (17.5°C).Heat index
The average heat index in September is estimated at a hot 93.2°F (34°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
In Neff, the average relative humidity in September is 70%.Rainfall
In September, the rain falls for 8.4 days. Throughout September, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 96.7 rainfall days, and 10" (254mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In Neff, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:03 pm CDT.
Sunshine
In Neff, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Neff have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Neff, OK
- Average high temperature in September: 85.3°F
The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in September
Neff, OK
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Neff, OK
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Neff, OK
- Average humidity in September: 70%
The months with the highest relative humidity are February, March and May (76%).
The months with the lowest relative humidity are July and August (69%).
Average rainfall in September
Neff, OK
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is August (1.34").
The driest month (with the least rainfall) is November (0.51").
Average rainfall days in September
Neff, OK
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is July (10.8 days).
The month with the least rainy days is December (5.7 days).
Average snowfall in September
Neff, OK
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Neff, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Neff, 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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Neff, OK
- Average sunshine days in September: 19.8 days
The months with the most sunshine days are January and December (23.5 days).
The month with the least sunshine days is August (16.9 days).
Average UV index in September
Neff, OK
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Neff, OK
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Neff, OK
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Neff, Oklahoma, USA
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