September weather forecastGranger, MO
September
Weather in September
The first month of the autumn, September, is still a warm month in Granger, Missouri, with an average temperature ranging between min 57.4°F (14.1°C) and max 76.5°F (24.7°C).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a warm 82.8°F (28.2°C) to a still moderately hot 76.5°F (24.7°C). The average temperature during September nights is registered at a refreshing 57.4°F (14.1°C).Humidity
The average relative humidity in September in Granger is 75%.Rainfall
In Granger, in September, it is raining for 10.7 days, with typically 2.44" (62mm) of accumulated precipitation. In Granger, during the entire year, the rain falls for 136.6 days and collects up to 28.5" (724mm) of precipitation.Snowfall
In Granger, snow does not fall in May through September.Daylight
The average length of the day in September in Granger is 12h and 27min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:51 pm CDT.
Sunshine
In September, the average sunshine in Granger is 9.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 4 in September leads to these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. To guard against the harmful effects of the Sun, minimize exposure during midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Granger, MO
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Granger, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Granger, MO
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in September
Granger, MO
- Average humidity in September: 75%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Granger, MO
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is June (4.09").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Granger, MO
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Granger, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Granger, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.5 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
Granger, MO
- Average daylight in September: 12h and 24min
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 18min).
- Average sunshine in September: 9h and 24min
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 18min).
Average sunshine days in September
Granger, MO
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in September
Granger, MO
- Average UV index in September: 4
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
Granger, MO
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in September
Granger, 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).





