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
Armstrong's September weather shows a modest shift in high-temperatures, falling from August's 85.5°F (29.7°C) to a still moderately hot 79°F (26.1°C). Armstrong records a consistent low-temperature of 59°F (15°C) during September nights.Humidity
In Armstrong, the average relative humidity in September is 74%.Rainfall
In Armstrong, in September, it is raining for 9.3 days, with typically 0.87" (22mm) of accumulated precipitation. In Armstrong, Missouri, during the entire year, the rain falls for 102.5 days and collects up to 10.91" (277mm) of precipitation.Snowfall
April through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:54 pm CDT.
Sunshine
In September, the average sunshine in Armstrong, Missouri, is 9.6h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What is the temperature in September in Armstrong?
What is the average humidity in September in Armstrong?
How much does it rain in Armstrong in September?
When it does not snow in Armstrong?
Does it snow in Armstrong in September?
How many hours of daylight does Armstrong have in September?
When is the sunrise / sunset in September in Armstrong?
How long on average sun shines in September in Armstrong?
What is the UV index intensity in September in Armstrong?
Average temperature in September
Armstrong, MO
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in September
Armstrong, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Armstrong, MO
- Average wind speed in September: 6.9mph
The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Armstrong, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Armstrong, MO
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Armstrong, MO
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is May (13.2 days).
The months with the least rainy days are February and December (4.3 days).
Average snowfall in September
Armstrong, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Armstrong, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Armstrong, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Armstrong, MO
- Average sunshine days in September: 19 days
The month with the most sunshine days is December (23.6 days).
The month with the least sunshine days is May (15.2 days).
Average UV index in September
Armstrong, 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
Armstrong, MO
- Average cloud cover in September: 28
The months with the most cloud cover are January and February (Cloud cover 48).
The months with the least cloud cover are June, July and August (Cloud cover 27).
Average visibility in September
Armstrong, 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).
Armstrong, Missouri, USA
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