Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a hot 86.2°F (30.1°C) in August to a warm 79.7°F (26.5°C). Weldon Spring Heights experiences an average nighttime temperature of 59.9°F (15.5°C) in the month of September.Humidity
In Weldon Spring Heights, the average relative humidity in September is 73%.Rainfall
In Weldon Spring Heights, in September, it is raining for 12 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, in Weldon Spring Heights, there are 139.6 rainfall days, and 26.1" (663mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:32 pm. On the last day of September, in Weldon Spring Heights, sunrise is at 6:58 am and sunset at 6:46 pm CDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
In September, the average daily maximum UV index in Weldon Spring Heights, Missouri, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are the temperatures in Weldon Spring Heights in September?
What is the average humidity in September in Weldon Spring Heights?
How much does it rain in Weldon Spring Heights in September?
When it does not snow in Weldon Spring Heights?
What is the average length of the day in September in Weldon Spring Heights?
When is the sunrise / sunset in September in Weldon Spring Heights?
How long on average sun shines in September in Weldon Spring Heights?
What is the UV index reading in September in Weldon Spring Heights?
Average temperature in September
Weldon Spring Heights, MO
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in September
Weldon Spring Heights, 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).
Average wind speed in September
Weldon Spring Heights, MO
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).
Average humidity in September
Weldon Spring Heights, 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 (71%).
Average rainfall in September
Weldon Spring Heights, MO
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is February (1.3").
Average rainfall days in September
Weldon Spring Heights, MO
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Weldon Spring Heights, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Weldon Spring Heights, 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).
Average daylight in September /
Average sunshine in September
Weldon Spring Heights, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Weldon Spring Heights, MO
- Average sunshine days in September: 16.5 days
The months with the most sunshine days are January and December (20.2 days).
The month with the least sunshine days is June (12 days).
Average UV index in September
Weldon Spring Heights, MO
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Weldon Spring Heights, MO
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in September
Weldon Spring Heights, 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).
Weldon Spring Heights, Missouri, USA
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