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
Walnut Grove's transition from August to September introduces an average high-temperature of a still tropical 86.2°F (30.1°C), marking an insignificant variation from the 90.9°F (32.7°C). Nighttime temperature in Walnut Grove dips to a mean of 66.7°F (19.3°C) during September.Heat index
September's heat index is computed to be a very hot 96.8°F (36°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.Be advised, the heat index considers values for conditions in shade and with a light breeze. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important 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.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In September, the average relative humidity in Walnut Grove, Mississippi, is 73%.Rainfall
In Walnut Grove, in September, it is raining for 12 days, with typically 1.81" (46mm) of accumulated precipitation. In Walnut Grove, Mississippi, during the entire year, the rain falls for 146.9 days and collects up to 24.84" (631mm) of precipitation.Snowfall
April through November are months without snowfall in Walnut Grove.Daylight
The average length of the day in September in Walnut Grove is 12h and 22min.On the first day of September, sunrise is at 6:33 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:43 pm CDT.
Sunshine
In September, the average sunshine in Walnut Grove, Mississippi, is 9.5h.UV index
In September, the average daily maximum UV index in Walnut Grove, Mississippi, 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: The UV index of 5 in September translates into these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
How hot is it in Walnut Grove in September?
What is the average humidity in September in Walnut Grove?
How many days does it rain in September in Walnut Grove?
When it does not snow in Walnut Grove?
How many hours of daylight does Walnut Grove have in September?
When are sunrise and sunset in September in Walnut Grove?
How long on average sun shines in September in Walnut Grove?
How high is the UV index in September in Walnut Grove?
Average temperature in September
Walnut Grove, MS
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (53.2°F).
- Average low temperature in September: 66.7°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in September
Walnut Grove, MS
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Walnut Grove, MS
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in September
Walnut Grove, MS
- Average humidity in September: 73%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Walnut Grove, MS
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in September
Walnut Grove, MS
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is October (7.5 days).
Average snowfall in September
Walnut Grove, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Walnut Grove, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Walnut Grove, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Walnut Grove, MS
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Walnut Grove, MS
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Walnut Grove, MS
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are September and October (Cloud cover 29).
Average visibility in September
Walnut Grove, MS
- 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).
Walnut Grove, Mississippi, USA
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