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 commencement of September indicates a gentle shift in the average high-temperature, receding from August's fiery hot 95°F (35°C) to a hot 88.7°F (31.5°C). September generally records an average low-temperature of 68°F (20°C).Heat index
The heat index value for September is computed to be a scorching 104°F (40°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.In reference to the heat index, it's for places in shade and with a slight wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In September, the average relative humidity is 73%.Rainfall
In Pleasant Hill, in September, it is raining for 14 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, there are 159.7 rainfall days, and 36.14" (918mm) of precipitation is accumulated.Snowfall
In Pleasant Hill, snow does not fall in March through November.Daylight
In Pleasant Hill, the average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 6:50 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:59 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Pleasant Hill, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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?
How many hours of daylight does Pleasant Hill have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Pleasant Hill have in September?
How high is the UV index in September in Pleasant Hill?
Average temperature in September
Pleasant Hill, LA
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in September
Pleasant Hill, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Pleasant Hill, LA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in September
Pleasant Hill, LA
- Average humidity in September: 73%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are August and October (71%).
Average rainfall in September
Pleasant Hill, LA
- Average rainfall in September: 2.8"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in September
Pleasant Hill, LA
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is August (16 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in September
Pleasant Hill, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Pleasant Hill, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Pleasant Hill, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Pleasant Hill, LA
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is February (12.4 days).
Average UV index in September
Pleasant Hill, LA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Pleasant Hill, LA
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Pleasant Hill, LA
- Average visibility in September: 5mi
The months with the highest visibility are June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, September and December (5mi).
Pleasant Hill, Louisiana, USA
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