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 onset of September in Harvey is marked by a decrease in temperature, transitioning from a warm 79.9°F (26.6°C) in August to an agreeable 70.3°F (21.3°C). Throughout the month of September, Harvey observes an average nighttime temperature of 50.9°F (10.5°C).Humidity
In Harvey, the average relative humidity in September is 59%.Rainfall
In Harvey, North Dakota, in September, it is raining for 9.9 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, in Harvey, there are 105.9 rainfall days, and 17.32" (440mm) of precipitation is accumulated.Snowfall
In Harvey, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 6:59 am and sunset at 8:19 pm. On the last day of September, in Harvey, sunrise is at 7:38 am and sunset at 7:20 pm CDT.
Sunshine
In Harvey, North Dakota, the average sunshine in September is 8.6h.UV index
In Harvey, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What are the temperatures in Harvey in September?
What is the average humidity in September in Harvey?
How many days does it rain in September in Harvey?
When it does not snow in Harvey?
Does it snow in Harvey in September?
What is the average length of the day in September in Harvey?
When are sunrise and sunset in September in Harvey?
How many hours of sunshine does Harvey have in September?
How high is the UV index in September in Harvey?
Average temperature in September
Harvey, ND
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (17.1°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (3°F).
Average pressure in September
Harvey, ND
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Harvey, ND
- Average wind speed in September: 10.4mph
The windiest month (with the highest average wind speed) is October (11.5mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).
Average humidity in September
Harvey, ND
- Average humidity in September: 59%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Harvey, ND
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Harvey, ND
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in September
Harvey, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Harvey, ND
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (16 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Harvey, ND
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Harvey, ND
- Average sunshine days in September: 18 days
The month with the most sunshine days is September (18 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Harvey, ND
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Harvey, ND
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Harvey, 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).
Harvey, North Dakota, USA
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