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
A mild drop in Highlandville's average high-temperature is observed in September, transitioning from a moderately hot 77.2°F (25.1°C) in August to an agreeable 70.7°F (21.5°C). Highlandville records an average nighttime low of 52°F (11.1°C) in September.Humidity
In Highlandville, the average relative humidity in September is 80%.Rainfall
In Highlandville, Iowa, during September, the rain falls for 13.3 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Highlandville, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.Snowfall
In Highlandville, Iowa, snow does not fall in June through September.Daylight
In Highlandville, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:31 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:48 pm CDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
In Highlandville, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the temperature in September in Highlandville?
What is the average humidity in September in Highlandville?
How many days does it rain in September in Highlandville?
When it does not snow in Highlandville?
Does it snow in Highlandville in September?
How many hours of daylight does Highlandville have in September?
What time are sunrise and sunset in September in Highlandville?
How long on average sun shines in September in Highlandville?
What is the UV index reading in September in Highlandville?
Average temperature in September
Highlandville, IA
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in September
Highlandville, IA
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Highlandville, IA
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Highlandville, IA
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Highlandville, IA
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in September
Highlandville, IA
- Average rainfall days in September: 13.3 days
The months with the highest number of rainy days are May and June (20.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in September
Highlandville, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Highlandville, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Highlandville, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Highlandville, IA
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.1 days).
Average UV index in September
Highlandville, IA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Highlandville, IA
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Highlandville, IA
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Highlandville, Iowa, USA
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