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 advent of September in Caledonia sees the average high-temperature at a still hot 86°F (30°C), subtly shifted from August's 91°F (32.8°C). During September, the nighttime temperature in Caledonia averages to a comfortable 65.7°F (18.7°C).Heat index
For most parts of September, the heat index is evaluated at a fiery hot 95°F (35°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
In Caledonia, the average relative humidity in September is 71%.Rainfall
In Caledonia, in September, it is raining for 13.6 days, with typically 2.8" (71mm) of accumulated precipitation. In Caledonia, during the entire year, the rain falls for 171.9 days and collects up to 43.23" (1098mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Caledonia, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of September, in Caledonia, sunrise is at 6:47 am and sunset at 6:38 pm CDT.
Sunshine
In Caledonia, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index in Caledonia is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 during September translates into the following guidance:
Heed the precautions - It is counselled to guard against solar damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
How hot is it in Caledonia in September?
What is the average humidity in September in Caledonia?
How many days does it rain in September in Caledonia?
When it does not snow in Caledonia?
How many hours of daylight does Caledonia have in September?
When are sunrise and sunset in September in Caledonia?
How long on average sun shines in September in Caledonia?
What is the UV index reading in September in Caledonia?
Average temperature in September
Caledonia, MS
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in September
Caledonia, MS
- 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 (29.96"Hg).
Average wind speed in September
Caledonia, MS
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Caledonia, MS
- Average humidity in September: 71%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Caledonia, MS
- Average rainfall in September: 2.8"
The wettest month (with the highest rainfall) is April (4.65").
The driest month (with the least rainfall) is November (2.32").
Average rainfall days in September
Caledonia, MS
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Caledonia, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Caledonia, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 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
Caledonia, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Caledonia, MS
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in September
Caledonia, 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, February and December (UV index 3).
Average cloud cover in September
Caledonia, MS
- Average cloud cover in September: 27
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in September
Caledonia, MS
- 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).
Caledonia, Mississippi, USA
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