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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a hot 86.5°F (30.3°C) in August to a warm 79.9°F (26.6°C). The low-temperature averages to a mild 59.9°F (15.5°C) during the nights of September.Humidity
In Halfway, Missouri, the average relative humidity in September is 74%.Rainfall
In Halfway, in September, it is raining for 13.2 days, with typically 2.17" (55mm) of accumulated precipitation. In Halfway, during the entire year, the rain falls for 150.7 days and collects up to 33.35" (847mm) of precipitation.Snowfall
In Halfway, snow does not fall in June through September.Daylight
In Halfway, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:43 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:57 pm CDT.
Sunshine
The average sunshine in September is 9.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Halfway have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Halfway have in September?
What is the UV index intensity in September?
Average temperature in September
Halfway, MO
- Average high temperature in September: 79.9°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in September
Halfway, MO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).
Average wind speed in September
Halfway, MO
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Halfway, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July, August, October and November (73%).
Average rainfall in September
Halfway, MO
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (5.04").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in September
Halfway, MO
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is December (6.9 days).
Average snowfall in September
Halfway, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Halfway, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Halfway, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Halfway, MO
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Halfway, 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).
Average cloud cover in September
Halfway, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Halfway, 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).
Halfway, Missouri, USA
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