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
Long Grove experiences an average high-temperature of a still warm 75.2°F (24°C) in September, subtly different from August's 80.2°F (26.8°C). Long Grove anticipates an average minimum temperature of 55.8°F (13.2°C) in the month of September.Humidity
In Long Grove, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 8.9 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. In Long Grove, during the entire year, the rain falls for 113.5 days and collects up to 14.25" (362mm) of precipitation.Snowfall
In Long Grove, snow does not fall in May through September.Daylight
In Long Grove, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:35 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:45 pm CDT.
Sunshine
In Long Grove, the average sunshine in September is 9.3h.UV index
In Long Grove, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What are September temperatures in Long Grove?
What is the average humidity in September in Long Grove?
How much does it rain in Long Grove in September?
When it does not snow in Long Grove?
Does it snow in Long Grove in September?
How many hours of daylight does Long Grove have in September?
What time are sunrise and sunset in September in Long Grove?
How many hours of sunshine does Long Grove have in September?
What is the UV index intensity in September in Long Grove?
Average temperature in September
Long Grove, IA
- Average high temperature in September: 75.2°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 (27.9°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in September
Long Grove, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Long Grove, IA
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in September
Long Grove, IA
- Average humidity in September: 76%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Long Grove, IA
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is December (0.51").
Average rainfall days in September
Long Grove, IA
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Long Grove, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Long Grove, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 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
Long Grove, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Long Grove, IA
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in September
Long Grove, IA
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Long Grove, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July, August and September (Cloud cover 30).
Average visibility in September
Long Grove, IA
- 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).
Long Grove, Iowa, USA
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