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 onset of September results in a small decrease in the average high-temperature, moderately receding from a hot 92.7°F (33.7°C) in August to a moderately hot 84.6°F (29.2°C). Throughout September, Meridian witnesses a nighttime temperature average of 65.1°F (18.4°C).Heat index
In September, the heat index is appraised at a hot 89.6°F (32°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.Observations indicate that the heat index values are for shady locations with light wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity is 66%.Rainfall
In Meridian, in September, it is raining for 11.7 days, with typically 2.28" (58mm) of accumulated precipitation. In Meridian, during the entire year, the rain falls for 108.5 days and collects up to 18.39" (467mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Meridian, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:01 am and sunset at 7:55 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:13 pm CDT.
Sunshine
In Meridian, Oklahoma, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Undertake precautions - It is suggested to shield oneself from sunburn. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Meridian, OK
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (47.7°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in September
Meridian, 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 (29.87"Hg).
Average wind speed in September
Meridian, OK
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in September
Meridian, OK
- Average humidity in September: 66%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Meridian, OK
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in September
Meridian, OK
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in September
Meridian, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Meridian, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 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
Meridian, 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 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Meridian, OK
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is May (15.2 days).
Average UV index in September
Meridian, 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
Meridian, OK
- Average cloud cover in September: 26
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Meridian, 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).
Meridian, Oklahoma, USA
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