September weather forecastGarden City, CO
September
Weather in September
September, the first month of the autumn in Garden City, is also a moderately hot month, with an average temperature fluctuating between 79.7°F (26.5°C) and 53.8°F (12.1°C).Temperature
September's arrival signals a moderate reduction in the average high-temperature, easing from a tropical 87.8°F (31°C) in August to a warm 79.7°F (26.5°C). In Garden City, the average temperature during the nights of September marks a significant drop from the daily high, settling at a fresh 53.8°F (12.1°C).Humidity
August and September, with an average relative humidity of 44%, are the least humid months.Rainfall
In Garden City, during September, the rain falls for 6.7 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Garden City, during the entire year, the rain falls for 71.4 days and collects up to 7.6" (193mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:41 pm MDT.
Sunshine
In September, the average sunshine is 10.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Undertake protective steps - Preventing sun damage is advised. The Sun's radiation is especially intense around midday; try to stay in shade during this period. 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
Garden City, CO
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in September: 53.8°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (20.1°F).
Average pressure in September
Garden City, CO
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Garden City, CO
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (6mph).
Average humidity in September
Garden City, CO
- Average humidity in September: 44%
The months with the highest relative humidity are January and December (64%).
The months with the lowest relative humidity are August and September (44%).
Average rainfall in September
Garden City, CO
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.2").
Average rainfall days in September
Garden City, CO
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is July (11.4 days).
The month with the least rainy days is November (1.6 days).
Average snowfall in September
Garden City, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Garden City, CO
- 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
Garden City, CO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).
Average sunshine days in September
Garden City, CO
- Average sunshine days in September: 22 days
The month with the most sunshine days is December (25.9 days).
The month with the least sunshine days is July (16.7 days).
Average UV index in September
Garden City, CO
- Average UV index in September: 4
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
Garden City, CO
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 16).
Average visibility in September
Garden City, CO
- 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).





