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
Alma's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 84.4°F (29.1°C) to a still moderately hot 78.8°F (26°C). Alma experiences a nighttime temperature average of 59.2°F (15.1°C) during September.Humidity
In Alma, the average relative humidity in September is 75%.Rainfall
In Alma, during September, the rain falls for 10.8 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Alma, during the entire year, the rain falls for 126.4 days and collects up to 20.08" (510mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:57 pm CDT.
Sunshine
In Alma, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Alma?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Alma, MO
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in September
Alma, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Alma, MO
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Alma, MO
- Average humidity in September: 75%
The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Alma, MO
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Alma, MO
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Alma, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Alma, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alma, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Alma, MO
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is December (22.6 days).
The months with the least sunshine days are May and June (13.8 days).
Average UV index in September
Alma, 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
Alma, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in September
Alma, 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).
Alma, Missouri, USA
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