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
Hillsboro's entry into September measures an average high-temperature of a still hot 86.9°F (30.5°C), closely parallel to the preceding month. In Hillsboro, September's nights observe an average temperature dip to a refreshing 66.9°F (19.4°C).Heat index
In September, the average heat index is estimated at a very hot 98.6°F (37°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are of high significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
The average relative humidity in September is 73%.Rainfall
In Hillsboro, Mississippi, in September, during 13.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 158.3 rainfall days, and 34.84" (885mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:43 pm CDT.
Sunshine
In Hillsboro, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
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 in Hillsboro?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Hillsboro have in September?
What is the UV index intensity in September?
Average temperature in September
Hillsboro, MS
- Average high temperature in September: 86.9°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 (54.1°F).
- Average low temperature in September: 66.9°F
The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).
Average pressure in September
Hillsboro, 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
Hillsboro, MS
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Hillsboro, 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
Hillsboro, MS
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in September
Hillsboro, MS
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in September
Hillsboro, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Hillsboro, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Hillsboro, MS
- 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 June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Hillsboro, MS
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is August (9.6 days).
Average UV index in September
Hillsboro, 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
Hillsboro, MS
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Hillsboro, MS
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
Hillsboro, Mississippi, USA
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