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 commencement of September introduces an average high-temperature of a still moderately hot 77.4°F (25.2°C), closely mirroring the preceding month. An average low-temperature of 58.8°F (14.9°C) is common during the nights of September.Humidity
In September, the average relative humidity in Rosamond is 75%.Rainfall
In Rosamond, during September, the rain falls for 11.5 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Rosamond, during the entire year, the rain falls for 129.9 days and collects up to 17.6" (447mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Rosamond is 12h and 26min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:27 pm. On the last day of September, in Rosamond, Illinois, sunrise is at 6:52 am and sunset at 6:40 pm CDT.
Sunshine
In Rosamond, the average sunshine in September is 9.2h.UV index
In Rosamond, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, a regular UV index of 5 translates into these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What are September temperatures in Rosamond?
What is the average humidity in September in Rosamond?
How much does it rain in Rosamond in September?
When it does not snow in Rosamond?
What is the average length of the day in September in Rosamond?
When are sunrise and sunset in September in Rosamond?
How many hours of sunshine does Rosamond have in September?
How high is the UV index in September in Rosamond?
Average temperature in September
Rosamond, IL
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 58.8°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in September
Rosamond, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Rosamond, IL
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in September
Rosamond, IL
- Average humidity in September: 75%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Rosamond, IL
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are February and December (0.98").
Average rainfall days in September
Rosamond, IL
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Rosamond, IL
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Rosamond, IL
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (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
Rosamond, 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 24min).
- Average sunshine in September: 9h and 1min
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
Rosamond, IL
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in September
Rosamond, 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
Rosamond, IL
- Average cloud cover in September: 29
The months with the most cloud cover are January and February (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in September
Rosamond, IL
- 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).
Rosamond, Illinois, USA
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