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 September's onset, the weather reveals a slight temperature decrease, transitioning from 82.8°F (28.2°C) in August to a still moderately hot 73.9°F (23.3°C). September in Colonial Pine Hills, South Dakota, witnesses an average low-temperature hovering around a cool 54°F (12.2°C).Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 50%.Rainfall
In Colonial Pine Hills, during September, the rain falls for 7.8 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Colonial Pine Hills, during the entire year, the rain falls for 118.8 days and collects up to 15.39" (391mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Colonial Pine Hills. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. In Colonial Pine Hills, during the entire year, snow falls for 50.4 days and aggregates up to 24.41" (620mm) of snow.Daylight
In Colonial Pine Hills, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:17 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:35 pm MDT.
Sunshine
The average sunshine in September is 10.4h.UV index
In Colonial Pine Hills, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To cut down UV radiation exposure by about half, sport a wide-brim hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Colonial Pine Hills in September?
What are the least humid months in Colonial Pine Hills?
What is the average humidity in September in Colonial Pine Hills?
How much does it rain in Colonial Pine Hills in September?
When does it start to snow in Colonial Pine Hills?
What is the average length of the day in September in Colonial Pine Hills?
When are sunrise and sunset in September in Colonial Pine Hills?
How long on average sun shines in September in Colonial Pine Hills?
What is the UV index intensity in September in Colonial Pine Hills?
Average temperature in September
Colonial Pine Hills, SD
- Average high temperature in September: 73.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (32.5°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (17.8°F).
Average pressure in September
Colonial Pine Hills, SD
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Colonial Pine Hills, SD
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).
Average humidity in September
Colonial Pine Hills, SD
- Average humidity in September: 50%
The month with the highest relative humidity is January (77%).
The months with the lowest relative humidity are August and September (50%).
Average rainfall in September
Colonial Pine Hills, SD
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Colonial Pine Hills, SD
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is December (4.8 days).
Average snowfall in September
Colonial Pine Hills, SD
- Average snowfall in September: 0.12"
The month with the highest snowfall is April (5.43").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Colonial Pine Hills, SD
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Colonial Pine Hills, SD
- Average daylight in September: 12h and 3min
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: 10h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in September
Colonial Pine Hills, SD
- Average sunshine days in September: 19.9 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (11 days).
Average UV index in September
Colonial Pine Hills, SD
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Colonial Pine Hills, SD
- Average cloud cover in September: 18
The months with the most cloud cover are February and April (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Colonial Pine Hills, 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).
Colonial Pine Hills, South Dakota, USA
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