September weather forecastCaldwell, KS
September
Weather in September
September, the first month of the autumn in Caldwell, is also a moderately hot month, with an average temperature ranging between min 64.2°F (17.9°C) and max 82.8°F (28.2°C).Temperature
As September commences, the average high-temperature subtly reduces, transitioning from a hot 91°F (32.8°C) in August to a moderately hot 82.8°F (28.2°C). Nighttime temperature in Caldwell experiences an average drop to a comfortable 64.2°F (17.9°C) in September.Heat index
Throughout September, the heat index is calculated to be a hot 86°F (30°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The average relative humidity in September in Caldwell is 65%.Rainfall
In Caldwell, in September, during 11.7 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Caldwell, during the entire year, the rain falls for 115.9 days and collects up to 22.44" (570mm) of precipitation.Snowfall
In Caldwell, snow does not fall in April through September.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September, sunrise is at 7:01 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm CDT.
Sunshine
In Caldwell, Kansas, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in Caldwell, Kansas, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Caldwell, KS
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in September: 64.2°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in September
Caldwell, 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 (29.86"Hg).
Average wind speed in September
Caldwell, KS
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in September
Caldwell, KS
- Average humidity in September: 65%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is July (61%).
Average rainfall in September
Caldwell, KS
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is December (0.63").
Average rainfall days in September
Caldwell, KS
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in September
Caldwell, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Caldwell, 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 June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Caldwell, KS
- Average daylight in September: 12h and 24min
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 42min).
- Average sunshine in September: 8h and 48min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Caldwell, KS
- Average sunshine days in September: 15.9 days
The months with the most sunshine days are January and December (24.1 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Caldwell, 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 and December (UV index 2).
Average cloud cover in September
Caldwell, KS
- Average cloud cover in September: 25
The month with the most cloud cover is March (Cloud cover 37).
The months with the least cloud cover are June and August (Cloud cover 20).
Average visibility in September
Caldwell, 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).
