September weather forecast
Rock Port, MO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Rock Port, Missouri, with an average temperature ranging between max 77.7°F (25.4°C) and min 57.7°F (14.3°C).

Temperature

The average high-temperature in September, at a still warm 77.7°F (25.4°C), reveals a modest deviation from August's 82.9°F (28.3°C). Rock Port throughout September, records an average low-temperature of 57.7°F (14.3°C).

Humidity

In September, the average relative humidity is 73%.

Rainfall

In September, the rain falls for 11.7 days. Throughout September, 1.93" (49mm) of precipitation is accumulated. In Rock Port, during the entire year, the rain falls for 120.8 days and collects up to 24.09" (612mm) of precipitation.

Snowfall

In Rock Port, snow does not fall in May through September.

Daylight

In Rock Port, the average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:50 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:05 pm CDT.

Sunshine

In Rock Port, Missouri, the average sunshine in September is 9.1h.

UV index

In Rock Port, Missouri, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Be vigilant - Preventing sunburn is recommended. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What is the average September temperature in Rock Port?

In September, the average high-temperature and low-temperature are 77.7°F (25.4°C) and 57.7°F (14.3°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 91.4°F (33°C).

What is the average humidity in September in Rock Port?

The average relative humidity in September is 73%.

How many days does it rain in September in Rock Port?

In September, in Rock Port, the rain falls for 11.7 days. Throughout September, 1.93" (49mm) of precipitation is accumulated.

When it does not snow in Rock Port?

May through September are months without snowfall in Rock Port, Missouri.

Does it snow in Rock Port in September?

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

How many hours of daylight does Rock Port have in September?

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

When is the sunrise / sunset in September in Rock Port?

In September, on the first day of the month, sunrise is at 6:50 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:05 pm CDT.

How many hours of sunshine does Rock Port have in September?

In Rock Port, the average sunshine duration in September is 9.1h.

How high is the UV index in September in Rock Port?

In September, the average daily maximum UV index in Rock Port is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Rock Port, MO

Average temperature in September - Rock Port, MO
  • Average high temperature in September: 77.7°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in September
Rock Port, MO

Average pressure in September - Rock Port, MO
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Rock Port, MO

Average wind speed in September - Rock Port, MO
  • Average wind speed in September: 7.8mph

The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in September
Rock Port, MO

Average humidity in September - Rock Port, MO
  • Average humidity in September: 73%

The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
Rock Port, MO

Average rainfall in September - Rock Port, MO
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is February (0.67").

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Average rainfall days in September
Rock Port, MO

Average rainfall days in September - Rock Port, MO
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in September
Rock Port, MO

Average snowfall in September - Rock Port, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Rock Port, MO

Average snowfall days in September - Rock Port, MO
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Rock Port, MO

Average daylight in September / Average sunshine in September - Rock Port, MO
  • 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

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Average sunshine days in September
Rock Port, MO

Average sunshine days in September - Rock Port, MO
  • Average sunshine days in September: 16.9 days

The months with the most sunshine days are November and December (21.5 days).
The month with the least sunshine days is May (11.4 days).

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Average UV index in September
Rock Port, MO

Average UV index in September - Rock Port, MO
  • Average UV index in September: 5

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).

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Average cloud cover in September
Rock Port, MO

Average cloud cover in September - Rock Port, MO
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in September
Rock Port, MO

Average visibility in September - Rock Port, MO
  • 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).

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Rock Port, Missouri, USA

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