September weather forecast
Saint Patrick, MO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Saint Patrick, Missouri, with an average temperature fluctuating between 77.9°F (25.5°C) and 58.1°F (14.5°C).

Temperature

The onset of September results in a small decrease in the average high-temperature, moderately receding from 83.7°F (28.7°C) in August to a still warm 77.9°F (25.5°C). During the month of September, the temperature in Saint Patrick generally drops to a low average of 58.1°F (14.5°C).

Humidity

The average relative humidity in September is 74%.

Rainfall

In Saint Patrick, during September, the rain falls for 11.2 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in Saint Patrick, Missouri, there are 137.5 rainfall days, and 27.68" (703mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Saint Patrick.

Daylight

In Saint Patrick, Missouri, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:37 pm. On the last day of September, in Saint Patrick, sunrise is at 7:02 am and sunset at 6:49 pm CDT.

Sunshine

In September, the average sunshine in Saint Patrick, Missouri, is 9.5h.

UV index

In Saint Patrick, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Saint Patrick in September?

In Saint Patrick, 77.9°F (25.5°C) is the average high-temperature and 58.1°F (14.5°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is estimated at 91.4°F (33°C).

What is the average humidity in September in Saint Patrick?

In Saint Patrick, Missouri, the average relative humidity in September is 74%.

How many days does it rain in September in Saint Patrick?

In Saint Patrick, Missouri, during September, the rain falls for 11.2 days and regularly aggregates up to 2.28" (58mm) of precipitation.

When it does not snow in Saint Patrick?

May through September are months without snowfall in Saint Patrick.

Does it snow in Saint Patrick in September?

In Saint Patrick, Missouri, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Saint Patrick have in September?

In September, the average day length in Saint Patrick, Missouri, is 12h and 26min.

When are sunrise and sunset in September in Saint Patrick?

On the first day of September, sunrise is at 6:34 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:49 pm CDT.

How long on average sun shines in September in Saint Patrick?

In Saint Patrick, Missouri, the average sunshine duration in September is 9.5h.

How high is the UV index in September in Saint Patrick?

In Saint Patrick, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Saint Patrick, MO

Average temperature in September - Saint Patrick, MO
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in September
Saint Patrick, MO

Average pressure in September - Saint Patrick, MO
  • 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
Saint Patrick, MO

Average wind speed in September - Saint Patrick, MO
  • Average wind speed in September: 7.3mph

The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in September
Saint Patrick, MO

Average humidity in September - Saint Patrick, MO
  • Average humidity in September: 74%

The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Saint Patrick, MO

Average rainfall in September - Saint Patrick, MO
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.26").

Average rainfall days in September
Saint Patrick, MO

Average rainfall days in September - Saint Patrick, MO
  • Average rainfall days in September: 11.2 days

The months with the highest number of rainy days are May and June (17.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in September
Saint Patrick, MO

Average snowfall in September - Saint Patrick, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Saint Patrick, MO

Average snowfall days in September - Saint Patrick, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.3 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
Saint Patrick, MO

Average daylight in September / Average sunshine in September - Saint Patrick, 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 24min).

  • Average sunshine in September: 9h and 3min

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 24min).

Average sunshine days in September
Saint Patrick, MO

Average sunshine days in September - Saint Patrick, MO
  • Average sunshine days in September: 17 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in September
Saint Patrick, MO

Average UV index in September - Saint Patrick, 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).

Average cloud cover in September
Saint Patrick, MO

Average cloud cover in September - Saint Patrick, MO
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in September
Saint Patrick, MO

Average visibility in September - Saint Patrick, 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).

Saint Patrick, Missouri, USA

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