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
With the onset of September, Blackwater's climate undergoes a slight change as the average high-temperature moves from 85.5°F (29.7°C) in August to a still moderately hot 79.3°F (26.3°C). Throughout the month of September, Blackwater reports a steady low-temperature average of 59°F (15°C).Humidity
In Blackwater, the average relative humidity in September is 74%.Rainfall
In Blackwater, in September, during 11.3 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Blackwater, during the entire year, the rain falls for 135.7 days and collects up to 28.11" (714mm) of precipitation.Snowfall
In Blackwater, Missouri, snow does not fall in April, June through September.Daylight
The average length of the day in September in Blackwater is 12h and 26min.On the first day of September in Blackwater, sunrise is at 6:41 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:55 pm CDT.
Sunshine
The average sunshine in September in Blackwater, Missouri, is 9.5h.UV index
In Blackwater, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. To protect against the Sun's most potent rays, avoid direct exposure around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Blackwater?
What is the average humidity in September in Blackwater?
How many days does it rain in September in Blackwater?
When it does not snow in Blackwater?
Does it snow in Blackwater in September?
What is the average length of the day in September in Blackwater?
What time are sunrise and sunset in September in Blackwater?
How long on average sun shines in September in Blackwater?
How high is the UV index in September in Blackwater?
Average temperature in September
Blackwater, MO
- Average high temperature in September: 79.3°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 (36.9°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in September
Blackwater, 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 (29.91"Hg).
Average wind speed in September
Blackwater, MO
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is March (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in September
Blackwater, MO
- Average humidity in September: 74%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Blackwater, MO
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in September
Blackwater, MO
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
Blackwater, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days in September
Blackwater, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Blackwater, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Blackwater, MO
- Average sunshine days in September: 18 days
The months with the most sunshine days are January and December (20 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Blackwater, 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
Blackwater, MO
- Average cloud cover in September: 29
The months with the most cloud cover are January, February and March (Cloud cover 48).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in September
Blackwater, 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).
Blackwater, Missouri, USA
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