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
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's 82.4°F (28°C) to a still moderately hot 76.8°F (24.9°C). September in Martinsville, Missouri, witnesses an average low-temperature hovering around a mild 57.4°F (14.1°C).Humidity
In Martinsville, the average relative humidity in September is 76%.Rainfall
In Martinsville, Missouri, in September, it is raining for 11.3 days, with typically 2.48" (63mm) of accumulated precipitation. In Martinsville, during the entire year, the rain falls for 129.2 days and collects up to 25.35" (644mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Martinsville is 12h and 26min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:59 pm CDT.
Sunshine
In Martinsville, Missouri, the average sunshine in September is 9.3h.UV index
In Martinsville, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 5 during September leads to these advisories:
Exercise prevention - Warding off sunburn is urged. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the average September temperature in Martinsville?
What is the average humidity in September in Martinsville?
How many days does it rain in September in Martinsville?
When it does not snow in Martinsville?
Does it snow in Martinsville in September?
What is the average length of the day in September in Martinsville?
When are sunrise and sunset in September in Martinsville?
How long on average sun shines in September in Martinsville?
What is the UV index intensity in September in Martinsville?
Average temperature in September
Martinsville, MO
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Martinsville, MO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Martinsville, MO
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is March (10mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Martinsville, MO
- Average humidity in September: 76%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Martinsville, MO
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are January and February (0.91").
Average rainfall days in September
Martinsville, MO
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in September
Martinsville, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Martinsville, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Martinsville, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Martinsville, MO
- Average sunshine days in September: 17 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Martinsville, MO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Martinsville, MO
- Average cloud cover in September: 29
The months with the most cloud cover are January and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Martinsville, MO
- 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).
Martinsville, Missouri, USA
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