September weather forecast
Spanish Lake, MO

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Weather in September

September in Spanish Lake presents an onset of autumn, with a noticeable decline in temperatures. The rainfall dips substantially to 2.01" (51mm) dispersed over 12.4 days, the lowest since March. Temperature readings are lesser than in August but higher than October. As autumn progresses, the daylight hours reduce further, resulting in cooler days. Wind speeds begin to pick up again after the calm summer season, providing a fresher feel to the atmosphere.

Temperature

During the shift to September, Spanish Lake records a mild decrease in average high-temperature, moving from 85.3°F (29.6°C) in August to a still warm 79.5°F (26.4°C). The average temperature drops to a refreshing 59.9°F (15.5°C) during the night in the month of September.

Humidity

The average relative humidity in September is 73%.

Rainfall

In Spanish Lake, in September, during 12.4 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, in Spanish Lake, there are 149 rainfall days, and 31.61" (803mm) of precipitation is accumulated.

Snowfall

In Spanish Lake, snow does not fall in April through October.

Daylight

In September, the average length of the day in Spanish Lake is 12h and 26min.
On the first day of September in Spanish Lake, sunrise is at 6:30 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm CDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

In September, the average daily maximum UV index in Spanish Lake is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What is the usual temperature for Spanish Lake in September?

In Spanish Lake, in September, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 59.9°F (15.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in August is calculated to be 95°F (35°C).

What is the average humidity in September in Spanish Lake?

In Spanish Lake, Missouri, the average relative humidity in September is 73%.

How much does it rain in Spanish Lake in September?

In Spanish Lake, Missouri, in September, it is raining for 12.4 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow in Spanish Lake?

In Spanish Lake, snow does not fall in April through October.

How many hours of daylight does Spanish Lake have in September?

In September, the average day length is 12h and 26min.

When are sunrise and sunset in September in Spanish Lake?

In September, on the first day of the month, sunrise is at 6:30 am and sunset at 7:30 pm. On the last day of the month, in Spanish Lake, Missouri, sunrise is at 6:56 am and sunset at 6:44 pm CDT.

How long on average sun shines in September in Spanish Lake?

The average sunshine duration in September in Spanish Lake is 9.5h.

What is the UV index reading in September in Spanish Lake?

In Spanish Lake, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Spanish Lake, MO

Average temperature in September - Spanish Lake, MO
  • Average high temperature in September: 79.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

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Average pressure in September
Spanish Lake, MO

Average pressure in September - Spanish Lake, MO
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Spanish Lake, MO

Average wind speed in September - Spanish Lake, MO
  • Average wind speed in September: 6.1mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

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Average humidity in September
Spanish Lake, MO

Average humidity in September - Spanish Lake, MO
  • Average humidity in September: 73%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Spanish Lake, MO

Average rainfall in September - Spanish Lake, MO
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in September
Spanish Lake, MO

Average rainfall days in September - Spanish Lake, MO
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Spanish Lake, MO

Average snowfall in September - Spanish Lake, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Spanish Lake, MO

Average snowfall days in September - Spanish Lake, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (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
Spanish Lake, MO

Average daylight in September / Average sunshine in September - Spanish Lake, MO
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Spanish Lake, MO

Average sunshine days in September - Spanish Lake, MO
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11 days).

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Average UV index in September
Spanish Lake, MO

Average UV index in September - Spanish Lake, MO
  • Average UV index in September: 5

The months with the highest UV index are May, 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
Spanish Lake, MO

Average cloud cover in September - Spanish Lake, MO
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in September
Spanish Lake, MO

Average visibility in September - Spanish Lake, 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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Spanish Lake, Missouri, USA

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