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 onset of September marks an average high-temperature of a still moderately hot 74.3°F (23.5°C), hardly differing from August's 79°F (26.1°C). In Border Plains, an average nighttime temperature of 54.9°F (12.7°C) is expected during September.Humidity
The average relative humidity in September is 76%.Rainfall
In Border Plains, in September, it is raining for 12.4 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, in Border Plains, there are 135.2 rainfall days, and 26.5" (673mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Border Plains.Daylight
In September, the average length of the day in Border Plains is 12h and 28min.On the first day of September in Border Plains, sunrise is at 6:42 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:58 pm CDT.
Sunshine
The average sunshine in September in Border Plains, Iowa, is 9.3h.UV index
In Border Plains, Iowa, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What is the usual temperature for Border Plains in September?
What is the average humidity in September in Border Plains?
How many days does it rain in September in Border Plains?
When it does not snow in Border Plains?
Does it snow in Border Plains in September?
How many hours of daylight does Border Plains have in September?
What time are sunrise and sunset in September in Border Plains?
How many hours of sunshine does Border Plains have in September?
How high is the UV index in September in Border Plains?
Average temperature in September
Border Plains, IA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in September
Border Plains, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Border Plains, IA
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in September
Border Plains, IA
- Average humidity in September: 76%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Border Plains, IA
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in September
Border Plains, IA
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Border Plains, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Border Plains, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Border Plains, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Border Plains, IA
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Border Plains, 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
Border Plains, IA
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in September
Border Plains, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Border Plains, Iowa, USA
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