September weather forecast
Farlin, IA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Farlin, Iowa, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 55.8°F (13.2°C).

Temperature

September brings a marginal elevation to a still warm 74.8°F (23.8°C) from August's 80.1°F (26.7°C) in Farlin's average high-temperatures. Farlin, during September, witnesses an average low-temperature of 55.8°F (13.2°C).

Humidity

The average relative humidity in September is 75%.

Rainfall

In Farlin, in September, during 11.2 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, there are 125.7 rainfall days, and 26.5" (673mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Farlin.

Daylight

The average length of the day in September in Farlin is 12h and 28min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:00 pm CDT.

Sunshine

In Farlin, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 4 transforms into these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Farlin in September?

In Farlin, 74.8°F (23.8°C) is the average high-temperature and 55.8°F (13.2°C) is the average low-temperature during September. In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 89.6°F (32°C).

What is the average humidity in September in Farlin?

In Farlin, the average relative humidity in September is 75%.

How many days does it rain in September in Farlin?

In Farlin, Iowa, in September, during 11.2 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

When it does not snow in Farlin?

June through September are months without snowfall in Farlin, Iowa.

Does it snow in Farlin in September?

In Farlin, Iowa, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Farlin have in September?

In September, the average day length in Farlin, Iowa, is 12h and 28min.

When are sunrise and sunset in September in Farlin?

In September, on the first day of the month, sunrise is at 6:44 am and sunset at 7:50 pm. On the last day of the month, in Farlin, Iowa, sunrise is at 7:14 am and sunset at 7:00 pm CDT.

How many hours of sunshine does Farlin have in September?

The average sunshine duration in September in Farlin, Iowa, is 9.3h.

What is the UV index reading in September in Farlin?

In Farlin, Iowa, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Farlin, IA

Average temperature in September - Farlin, IA
  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in September: 55.8°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 (13.5°F).

Average pressure in September
Farlin, IA

Average pressure in September - Farlin, 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
Farlin, IA

Average wind speed in September - Farlin, IA
  • Average wind speed in September: 8.3mph

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 (7.1mph).

Average humidity in September
Farlin, IA

Average humidity in September - Farlin, IA
  • Average humidity in September: 75%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Farlin, IA

Average rainfall in September - Farlin, IA
  • Average rainfall in September: 2.91"

The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in September
Farlin, IA

Average rainfall days in September - Farlin, IA
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.4 days).

Average snowfall in September
Farlin, IA

Average snowfall in September - Farlin, IA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Farlin, IA

Average snowfall days in September - Farlin, IA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Farlin, IA

Average daylight in September / Average sunshine in September - Farlin, 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 month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Farlin, IA

Average sunshine days in September - Farlin, IA
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in September
Farlin, IA

Average UV index in September - Farlin, IA
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in September
Farlin, IA

Average cloud cover in September - Farlin, IA
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).

Average visibility in September
Farlin, IA

Average visibility in September - Farlin, 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).

Farlin, Iowa, USA

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