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
The onset of September brings a small shift in high-temperatures, falling from a moderately hot 85.6°F (29.8°C) in August to a still warm 78.8°F (26°C). Norris witnesses an average low-temperature of 59.9°F (15.5°C) throughout the month of September.Humidity
In September, the average relative humidity in Norris is 75%.Rainfall
In Norris, in September, it is raining for 12 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, in Norris, there are 131.1 rainfall days, and 21.65" (550mm) of precipitation is accumulated.Snowfall
April, June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 6:45 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:59 pm CDT.
Sunshine
The average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in Norris in September?
How many hours of daylight does Norris have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Norris, MO
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°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 (24.3°F).
Average pressure in September
Norris, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Norris, MO
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Norris, MO
- Average humidity in September: 75%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Norris, MO
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Norris, MO
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in September
Norris, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days in September
Norris, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Norris, 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 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Norris, MO
- Average sunshine days in September: 16.1 days
The months with the most sunshine days are January and December (22.1 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in September
Norris, 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
Norris, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in September
Norris, 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).
Norris, Missouri, USA
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