September weather forecast
Sawyer, IA

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Weather in September

September, the first month of the autumn in Sawyer, is also a moderately hot month, with an average temperature fluctuating between 77°F (25°C) and 57.4°F (14.1°C).

Temperature

Transitioning into September, Sawyer experiences an average high-temperature of a still moderately hot 77°F (25°C), marking a minor shift from the preceding month. Sawyer observes an average low-temperature of 57.4°F (14.1°C) during September.

Humidity

In Sawyer, the average relative humidity in September is 74%.

Rainfall

In September, the rain falls for 8.2 days. Throughout September, 0.83" (21mm) of precipitation is accumulated. Throughout the year, there are 101.8 rainfall days, and 9.92" (252mm) of precipitation is accumulated.

Snowfall

In Sawyer, snow does not fall in May through September.

Daylight

In Sawyer, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:37 pm. On the last day of September, in Sawyer, sunrise is at 7:01 am and sunset at 6:48 pm CDT.

Sunshine

The average sunshine in September in Sawyer is 9.6h.

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 average individuals.
Note: In September, a regular UV index of 4 translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. It's recommended to limit sun exposure when its radiation is at its peak during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature, in September, in Sawyer, is 77°F (25°C), while the low-temperature averages to 57.4°F (14.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 74%.

How many days does it rain in September?

In Sawyer, in September, during 8.2 rainfall days, 0.83" (21mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Sawyer have in September?

In September, the average day length is 12h and 27min.

What time are sunrise and sunset in September?

On the first day of September in Sawyer, sunrise is at 6:33 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:48 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.6h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Sawyer, IA

Average temperature in September - Sawyer, IA
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in September
Sawyer, IA

Average pressure in September - Sawyer, IA
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Sawyer, IA

Average wind speed in September - Sawyer, IA
  • Average wind speed in September: 7.7mph

The windiest months (with the highest average wind speed) are January, February, March and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity in September
Sawyer, IA

Average humidity in September - Sawyer, IA
  • Average humidity in September: 74%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Sawyer, IA

Average rainfall in September - Sawyer, IA
  • Average rainfall in September: 0.83"

The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January and December (0.47").

Average rainfall days in September
Sawyer, IA

Average rainfall days in September - Sawyer, IA
  • Average rainfall days in September: 8.2 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.5 days).

Average snowfall in September
Sawyer, IA

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

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Sawyer, IA

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

The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Sawyer, IA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September
Sawyer, IA

Average sunshine days in September - Sawyer, IA
  • Average sunshine days in September: 19.4 days

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is May (14 days).

Average UV index in September
Sawyer, IA

Average UV index in September - Sawyer, 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, February, November and December (UV index 2).

Average cloud cover in September
Sawyer, IA

Average cloud cover in September - Sawyer, IA
  • Average cloud cover in September: 28

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 28).

Average visibility in September
Sawyer, IA

Average visibility in September - Sawyer, IA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Sawyer, Iowa, USA

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