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
With the arrival of September, Grabill experiences a modest decline in average high-temperatures, transitioning from a warm 79.2°F (26.2°C) in August to a still moderately hot 73.8°F (23.2°C). The nighttime temperature dips to a refreshing 55.4°F (13°C) on average during September.Humidity
In September, the average relative humidity is 79%.Rainfall
In Grabill, in September, it is raining for 11.5 days, with typically 1.18" (30mm) of accumulated precipitation. In Grabill, during the entire year, the rain falls for 140.8 days and collects up to 16.22" (412mm) of precipitation.Snowfall
June through September are months without snowfall in Grabill.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in Grabill, sunrise is at 7:07 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 7:22 pm EDT.
Sunshine
In September, the average sunshine is 8h.UV index
The average daily maximum UV index in September in Grabill is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Make use of precautions - It is urged to ward off sun damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What are the temperatures in Grabill in September?
What is the average humidity in September in Grabill?
How much does it rain in Grabill in September?
When it does not snow in Grabill?
Does it snow in Grabill in September?
How many hours of daylight does Grabill have in September?
When is the sunrise / sunset in September in Grabill?
How long on average sun shines in September in Grabill?
What is the UV index intensity in September in Grabill?
Average temperature in September
Grabill, IN
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in September
Grabill, IN
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Grabill, IN
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Grabill, IN
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Grabill, IN
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in September
Grabill, IN
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Grabill, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Grabill, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grabill, IN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Grabill, IN
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in September
Grabill, IN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Grabill, IN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Grabill, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Grabill, Indiana, USA
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