September weather forecastHorace, ND
September
Weather in September
In September, Horace witnesses the onset of autumn and with it, a marked drop in temperatures. Rainfall declines during this month, and snowfall is non-existent. Daylight hours continue to lessen, signaling the shortening days of autumn. On a positive note, this month boasts more clear days with decreased cloud cover. With relative humidity at 63%, September serves as one of the driest months of the year.Temperature
In the transition to September, Horace observes a drop in the average high-temperature, moving from a warm 81°F (27.2°C) in August to a pleasant 71.8°F (22.1°C). Throughout September, an average low-temperature of 52.7°F (11.5°C) is experienced.Humidity
With an average relative humidity of 63%, September is the least humid month.Rainfall
In September, the rain falls for 8.9 days. Throughout September, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 102.5 rainfall days, and 17.17" (436mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 6:48 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:08 pm CDT.
Sunshine
In Horace, the average sunshine in September is 8.9h.UV index
In Horace, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Take precautions - Protection against sun damage is advised. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Horace, ND
- Average high temperature in September: 71.8°F
The warmest months (with the highest average high temperature) are July and August (81°F).
The month with the lowest average high temperature is January (16.2°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (2.7°F).
Average pressure in September
Horace, ND
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Horace, ND
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is October (10.7mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in September
Horace, ND
- Average humidity in September: 63%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (63%).
Average rainfall in September
Horace, ND
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Horace, ND
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (1.7 days).
Average snowfall in September
Horace, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Horace, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Horace, ND
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Horace, ND
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is September (19.7 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in September
Horace, ND
- 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 and December (UV index 1).
Average cloud cover in September
Horace, ND
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in September
Horace, ND
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
