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
In September, the average high-temperature goes from a warm 82.9°F (28.3°C) in August to a pleasant 73.2°F (22.9°C). Reva experiences an average temperature drop to a fresh 54.5°F (12.5°C) during September nights.Humidity
The average relative humidity in September in Reva, South Dakota, is 48%.Rainfall
In Reva, in September, it is raining for 9 days, with typically 1.02" (26mm) of accumulated precipitation. In Reva, during the entire year, the rain falls for 103.8 days and collects up to 14.88" (378mm) of precipitation.Snowfall
In Reva, snow does not fall in June through September.Daylight
The average length of the day in September in Reva, South Dakota, is 12h and 31min.On the first day of September in Reva, sunrise is at 6:14 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:33 pm MDT.
Sunshine
In September, the average sunshine in Reva is 10h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are the temperatures in Reva in September?
What is the average humidity in September in Reva?
How much does it rain in Reva in September?
When it does not snow in Reva?
Does it snow in Reva in September?
How many hours of daylight does Reva have in September?
What time are sunrise and sunset in September in Reva?
How many hours of sunshine does Reva have in September?
What is the UV index intensity in September in Reva?
Average temperature in September
Reva, SD
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Reva, SD
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Reva, SD
- Average wind speed in September: 10.6mph
The windiest months (with the highest average wind speed) are January and October (11.9mph).
The calmest month (with the lowest average wind speed) is July (9.8mph).
Average humidity in September
Reva, SD
- Average humidity in September: 48%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Reva, SD
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in September
Reva, SD
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Reva, SD
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Reva, SD
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Reva, SD
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in September
Reva, SD
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in September
Reva, SD
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Reva, SD
- Average cloud cover in September: 22
The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Reva, SD
- 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).
Reva, South Dakota, USA
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