September weather forecastGem, KS
September
Weather in September
September, the first month of the autumn in Gem, is still a warm month, with an average temperature ranging between min 59.9°F (15.5°C) and max 81.1°F (27.3°C).Temperature
The onset of September is marked by a minor decrease in temperature, transitioning from a hot 88.7°F (31.5°C) in August to a moderately hot 81.1°F (27.3°C). Throughout September, Gem experiences a low-temperature average of 59.9°F (15.5°C).Heat index
For most parts of September, the heat index is appraised at 82.4°F (28°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.The standards for the heat index are set for locations in shade and under light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In Gem, the average relative humidity in September is 53%.Rainfall
In Gem, Kansas, in September, it is raining for 8.4 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Gem, there are 93.4 rainfall days, and 13.39" (340mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Gem is 12h and 26min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:13 pm. On the last day of September, sunrise is at 7:39 am and sunset at 7:27 pm CDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
In September, the average daily maximum UV index in Gem, Kansas, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health 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 is most powerful around mid-day, so it's a good practice to reduce direct exposure. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gem, KS
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (41.4°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is December (25°F).
Average pressure in September
Gem, KS
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in September
Gem, KS
- Average wind speed in September: 11.2mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.2mph).
Average humidity in September
Gem, KS
- Average humidity in September: 53%
The months with the highest relative humidity are January and December (64%).
The month with the lowest relative humidity is July (51%).
Average rainfall in September
Gem, KS
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
Gem, KS
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is December (2.4 days).
Average snowfall in September
Gem, KS
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Gem, KS
- 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
Gem, KS
- Average daylight in September: 12h and 24min
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 24min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Gem, KS
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is December (25 days).
The month with the least sunshine days is July (14.5 days).
Average UV index in September
Gem, KS
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Gem, KS
- Average cloud cover in September: 20
The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 19).
Average visibility in September
Gem, 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).





