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 from August to September includes a minor decrease in the average high-temperature, lightly dropping from a moderately hot 78.3°F (25.7°C) to a pleasant 72.5°F (22.5°C). The month of September records an average low-temperature of 54°F (12.2°C) in Gatesville.Humidity
The average relative humidity in September in Gatesville is 79%.Rainfall
In Gatesville, in September, during 11.8 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Gatesville, during the entire year, the rain falls for 140.6 days and collects up to 30" (762mm) of precipitation.Snowfall
In Gatesville, Iowa, snow does not fall in June through September.Daylight
In September, the average length of the day in Gatesville is 12h and 28min.On the first day of September, sunrise is at 6:33 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:49 pm CDT.
Sunshine
In September, the average sunshine in Gatesville is 9h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Undertake precautions - Guarding against sun damage is counselled. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Gatesville?
What is the average humidity in September in Gatesville?
How many days does it rain in September in Gatesville?
When it does not snow in Gatesville?
Does it snow in Gatesville in September?
What is the average length of the day in September in Gatesville?
What time are sunrise and sunset in September in Gatesville?
How many hours of sunshine does Gatesville have in September?
What is the UV index intensity in September in Gatesville?
Average temperature in September
Gatesville, IA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in September
Gatesville, 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 (29.89"Hg).
Average wind speed in September
Gatesville, IA
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Gatesville, IA
- Average humidity in September: 79%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Gatesville, IA
- Average rainfall in September: 2.72"
The wettest months (with the highest rainfall) are May and June (4.37").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Gatesville, IA
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in September
Gatesville, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Gatesville, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gatesville, 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 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Gatesville, IA
- Average sunshine days in September: 15.4 days
The months with the most sunshine days are January, October and November (17.5 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in September
Gatesville, 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 and December (UV index 1).
Average cloud cover in September
Gatesville, IA
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in September
Gatesville, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Gatesville, Iowa, USA
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