September weather forecast
Protivin, IA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Protivin, Iowa, with an average temperature ranging between min 52.2°F (11.2°C) and max 70.7°F (21.5°C).

Temperature

The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 76.6°F (24.8°C) to a pleasant 70.7°F (21.5°C). Protivin's nights in September experience an average temperature drop to a cool 52.2°F (11.2°C).

Humidity

In Protivin, the average relative humidity in September is 80%.

Rainfall

In Protivin, during September, the rain falls for 13.9 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Protivin, during the entire year, the rain falls for 148.5 days and collects up to 29.69" (754mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:50 pm CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Take precautions - Protection against sun damage is advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

In Protivin, 70.7°F (21.5°C) is the average high-temperature and 52.2°F (11.2°C) is the average low-temperature during September.

What is the average humidity in September?

In September, the average relative humidity is 80%.

How many days does it rain in September?

In Protivin, during September, the rain falls for 13.9 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow?

In Protivin, snow does not fall in June through September.

Does it snow in September?

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

What is the average length of the day in September?

The average day length in September is 12h and 29min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:33 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:50 pm CDT.

How many hours of sunshine does Protivin have in September?

In Protivin, the average sunshine duration in September is 8.8h.

What is the UV index intensity in September?

The average daily maximum UV index in September in Protivin is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Protivin, IA

Average temperature in September - Protivin, IA
  • Average high temperature in September: 70.7°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in September: 52.2°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in September
Protivin, IA

Average pressure in September - Protivin, IA
  • Average pressure in September: 30.01"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
Protivin, IA

Average wind speed in September - Protivin, IA
  • Average wind speed in September: 8.4mph

The windiest months (with the highest average wind speed) are January and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).

Average humidity in September
Protivin, IA

Average humidity in September - Protivin, IA
  • Average humidity in September: 80%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September
Protivin, IA

Average rainfall in September - Protivin, IA
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is June (4.8").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in September
Protivin, IA

Average rainfall days in September - Protivin, IA
  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is June (20.3 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in September
Protivin, IA

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

The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Protivin, IA

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

The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Protivin, IA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
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 42min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in September
Protivin, IA

Average sunshine days in September - Protivin, IA
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (7.1 days).

Average UV index in September
Protivin, IA

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).

Average cloud cover in September
Protivin, IA

Average cloud cover in September - Protivin, IA
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Protivin, IA

Average visibility in September - Protivin, 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).

Protivin, Iowa, USA

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