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
A mild shift in the average high-temperature occurs in September, reducing from 84.9°F (29.4°C) in August to a still moderately hot 78.4°F (25.8°C). During the nights in September, Grandview experiences a consistent average temperature of 59.9°F (15.5°C).Humidity
The average relative humidity in September is 75%.Rainfall
In Grandview, in September, it is raining for 12 days, with typically 2.56" (65mm) of accumulated precipitation. In Grandview, during the entire year, the rain falls for 133.9 days and collects up to 28.54" (725mm) of precipitation.Snowfall
June through September are months without snowfall in Grandview.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:48 pm. On the last day of September, in Grandview, sunrise is at 7:13 am and sunset at 7:01 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Grandview, Missouri, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Heed the precautions - It is counselled to guard against solar damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Grandview?
What is the average humidity in September in Grandview?
How much does it rain in Grandview in September?
When it does not snow in Grandview?
Does it snow in Grandview in September?
What is the average length of the day in September in Grandview?
What time are sunrise and sunset in September in Grandview?
How long on average sun shines in September in Grandview?
How high is the UV index in September in Grandview?
Average temperature in September
Grandview, MO
- Average high temperature in September: 78.4°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in September
Grandview, 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 (29.89"Hg).
Average wind speed in September
Grandview, 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
Grandview, MO
- Average humidity in September: 75%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Grandview, MO
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Grandview, MO
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Grandview, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Grandview, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grandview, 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 month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Grandview, MO
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Grandview, 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, November and December (UV index 2).
Average cloud cover in September
Grandview, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Grandview, 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).
Grandview, Missouri, USA
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