September weather forecastDimock, SD
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Dimock, South Dakota, with an average temperature varying between 76.3°F (24.6°C) and 55.2°F (12.9°C).Temperature
In September, the average high-temperature marginally decreases from a warm 84.4°F (29.1°C) in August to a still moderately hot 76.3°F (24.6°C). In September, Dimock reports a consistent average low-temperature of 55.2°F (12.9°C) during the nights.Humidity
In Dimock, the average relative humidity in September is 64%.Rainfall
In Dimock, during September, the rain falls for 11.7 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 106.8 rainfall days, and 19.29" (490mm) of precipitation is accumulated.Snowfall
In Dimock, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:56 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:14 pm CDT.
Sunshine
In September, the average sunshine in Dimock is 8.8h.UV index
In Dimock, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dimock, SD
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in September
Dimock, SD
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Dimock, SD
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in September
Dimock, SD
- Average humidity in September: 64%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (63%).
Average rainfall in September
Dimock, SD
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Dimock, SD
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in September
Dimock, SD
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.56").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Dimock, SD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dimock, SD
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Dimock, SD
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Dimock, SD
- 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
Dimock, SD
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in September
Dimock, 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).
