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
The shift into September records an average high-temperature of a still moderately hot 77.9°F (25.5°C), subtly varied from August's 82.2°F (27.9°C). September nights experience a consistent temperature drop to a refreshing 59.4°F (15.2°C).Humidity
In Rose Hill, the average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall in Rose Hill. Rain falls for 13 days and accumulates 1.89" (48mm) of precipitation.Snowfall
In Rose Hill, snow does not fall in May through October.Daylight
In Rose Hill, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:22 pm. On the last day of September, in Rose Hill, sunrise is at 6:48 am and sunset at 6:36 pm CDT.
Sunshine
In Rose Hill, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Rose Hill, Illinois, is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What are the temperatures in Rose Hill in September?
What is the average humidity in September in Rose Hill?
What is the driest month in Rose Hill?
How many days does it rain in September in Rose Hill?
When it does not snow in Rose Hill?
How many hours of daylight does Rose Hill have in September?
When are sunrise and sunset in September in Rose Hill?
How many hours of sunshine does Rose Hill have in September?
What is the UV index reading in September in Rose Hill?
Average temperature in September
Rose Hill, IL
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Rose Hill, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Rose Hill, IL
- Average wind speed in September: 6.8mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
Rose Hill, IL
- Average humidity in September: 75%
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Rose Hill, IL
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is April (5.04").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Rose Hill, IL
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and February (9.3 days).
Average snowfall in September
Rose Hill, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Rose Hill, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 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
Rose Hill, IL
- 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 0min
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 12min).
Average sunshine days in September
Rose Hill, IL
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in September
Rose Hill, IL
- Average UV index in September: 5
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
Rose Hill, IL
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Rose Hill, IL
- 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).
Rose Hill, Illinois, USA
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