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 advent of September brings a slight shift in average high-temperature, moving from a hot 91.4°F (33°C) in August to a moderately hot 83.1°F (28.4°C). Throughout September, the nighttime temperature in Harper averages to a refreshing 64.8°F (18.2°C).Heat index
Throughout September, the heat index is calculated to be a tropical 86°F (30°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
In September, the average relative humidity is 63%.Rainfall
In Harper, in September, during 13.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Harper, there are 122.5 rainfall days, and 24.69" (627mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September in Harper is 12h and 25min.On the first day of the month, sunrise is at 7:03 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:27 am and sunset at 7:16 pm CDT.
Sunshine
In Harper, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
Is it hot in Harper during September?
What is the average humidity in September in Harper?
How many days does it rain in September in Harper?
When it does not snow in Harper?
What is the average length of the day in September in Harper?
When is the sunrise / sunset in September in Harper?
How many hours of sunshine does Harper have in September?
What is the UV index reading in September in Harper?
Average temperature in September
Harper, KS
- Average high temperature in September: 83.1°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in September: 64.8°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in September
Harper, KS
- Average pressure in September: 29.98"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
Harper, KS
- Average wind speed in September: 9.5mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in September
Harper, KS
- Average humidity in September: 63%
The month with the highest relative humidity is May (70%).
The month with the lowest relative humidity is July (57%).
Average rainfall in September
Harper, KS
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (4.61").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in September
Harper, KS
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in September
Harper, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Harper, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Harper, KS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in September
Harper, KS
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is January (24.6 days).
The month with the least sunshine days is August (13.1 days).
Average UV index in September
Harper, KS
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Harper, KS
- Average cloud cover in September: 25
The month with the most cloud cover is March (Cloud cover 36).
The months with the least cloud cover are June and August (Cloud cover 20).
Average visibility in September
Harper, KS
- 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).
Harper, Kansas, USA
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