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 moderate decline in average high-temperatures is noted in September, moving from 81°F (27.2°C) in August to a still warm 74.8°F (23.8°C). Throughout September, Linden records an average temperature of 55.9°F (13.3°C) at night.Humidity
In Linden, the average relative humidity in September is 76%.Rainfall
In Linden, in September, during 11.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Linden, during the entire year, the rain falls for 117.3 days and collects up to 19.09" (485mm) of precipitation.Snowfall
June through September are months without snowfall in Linden.Daylight
In Linden, the average length of the day in September is 12h and 28min.On the first day of September in Linden, Iowa, sunrise is at 6:43 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:59 pm CDT.
Sunshine
In Linden, the average sunshine in September is 9.2h.UV index
In Linden, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Put precautions into practice - Protective measures against sun-induced damage are advised. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What is the temperature in September in Linden?
What is the average humidity in September in Linden?
How many days does it rain in September in Linden?
When it does not snow in Linden?
Does it snow in Linden in September?
How many hours of daylight does Linden have in September?
What time are sunrise and sunset in September in Linden?
How many hours of sunshine does Linden have in September?
What is the UV index reading in September in Linden?
Average temperature in September
Linden, IA
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in September
Linden, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Linden, IA
- Average wind speed in September: 8.3mph
The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Linden, IA
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Linden, IA
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Linden, IA
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Linden, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Linden, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Linden, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Linden, IA
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is December (22 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in September
Linden, IA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Linden, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in September
Linden, IA
- 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).
Linden, Iowa, USA
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