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
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from 80.2°F (26.8°C) to a still moderately hot 74.8°F (23.8°C). September's average low-temperature reading in Twin View Heights settles at a mild 55.4°F (13°C).Humidity
The average relative humidity in September is 77%.Rainfall
In Twin View Heights, during September, the rain falls for 11.5 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, there are 134.7 rainfall days, and 27.72" (704mm) of precipitation is accumulated.Snowfall
In Twin View Heights, snow does not fall in May through September.Daylight
In Twin View Heights, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:49 pm CDT.
Sunshine
The average sunshine in September in Twin View Heights is 9.3h.UV index
In Twin View Heights, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 4 transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What are the temperatures in Twin View Heights in September?
What is the average humidity in September in Twin View Heights?
How much does it rain in Twin View Heights in September?
When it does not snow in Twin View Heights?
Does it snow in Twin View Heights in September?
How many hours of daylight does Twin View Heights have in September?
When are sunrise and sunset in September in Twin View Heights?
How many hours of sunshine does Twin View Heights have in September?
How high is the UV index in September in Twin View Heights?
Average temperature in September
Twin View Heights, IA
- Average high temperature in September: 74.8°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 (27.1°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in September
Twin View Heights, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Twin View Heights, IA
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in September
Twin View Heights, IA
- Average humidity in September: 77%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Twin View Heights, IA
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in September
Twin View Heights, IA
- Average rainfall days in September: 11.5 days
The months with the highest number of rainy days are May and June (17 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Twin View Heights, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Twin View Heights, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.1 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
Twin View Heights, 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 months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Twin View Heights, IA
- Average sunshine days in September: 17 days
The months with the most sunshine days are October, November and December (18.1 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Twin View Heights, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Twin View Heights, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Twin View Heights, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Twin View Heights, Iowa, USA
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