September weather forecastGrantwood Village, MO
September
Weather in September
September, the first month of the autumn in Grantwood Village, is also a moderately hot month, with an average temperature varying between 59.9°F (15.5°C) and 79.7°F (26.5°C).Temperature
September indicates a minor shift in the average high-temperature, from August's 85.6°F (29.8°C) to a still moderately hot 79.7°F (26.5°C). An average low-temperature of 59.9°F (15.5°C) is expected in Grantwood Village during September.Humidity
In Grantwood Village, the average relative humidity in September is 73%.Rainfall
In Grantwood Village, in September, it is raining for 12.6 days, with typically 2.13" (54mm) of accumulated precipitation. In Grantwood Village, during the entire year, the rain falls for 146.1 days and collects up to 32.36" (822mm) of precipitation.Snowfall
April through October are months without snowfall in Grantwood Village.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:45 pm CDT.
Sunshine
In September, the average sunshine in Grantwood Village is 9.4h.UV index
In September, the average daily maximum UV index in Grantwood Village is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the UV index of 5 transforms into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grantwood Village, MO
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Grantwood Village, 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 (29.92"Hg).
Average wind speed in September
Grantwood Village, MO
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Grantwood Village, MO
- Average humidity in September: 73%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Grantwood Village, MO
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.77").
Average rainfall days in September
Grantwood Village, MO
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall in September
Grantwood Village, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Grantwood Village, MO
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grantwood Village, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Grantwood Village, MO
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in September
Grantwood Village, MO
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Grantwood Village, MO
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Grantwood Village, 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).
