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
September brings a drop in Haynes's average high-temperature, falling from a warm 82.4°F (28°C) in August to an agreeable 73°F (22.8°C). Haynes, during the month of September, experiences an average low-temperature of 53.4°F (11.9°C).Humidity
In Haynes, North Dakota, the average relative humidity in September is 51%.Rainfall
In September, in Haynes, the rain falls for 8.1 days. Throughout September, 1.14" (29mm) of precipitation is accumulated. Throughout the year, in Haynes, there are 104.8 rainfall days, and 15.2" (386mm) of precipitation is accumulated.Snowfall
July through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:11 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:31 pm MDT.
Sunshine
In Haynes, North Dakota, the average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index in Haynes is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Haynes in September?
What is the average humidity in September in Haynes?
How much does it rain in Haynes in September?
When it does not snow in Haynes?
Does it snow in Haynes in September?
What is the average length of the day in September in Haynes?
When is the sunrise / sunset in September in Haynes?
How long on average sun shines in September in Haynes?
What is the UV index intensity in September in Haynes?
Average temperature in September
Haynes, ND
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in September
Haynes, ND
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Haynes, ND
- Average wind speed in September: 10.7mph
The windiest months (with the highest average wind speed) are January and October (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).
Average humidity in September
Haynes, ND
- Average humidity in September: 51%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Haynes, ND
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in September
Haynes, ND
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is November (3 days).
Average snowfall in September
Haynes, ND
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.84").
The months with the least snowfall are July, August and September (0").
Average snowfall days in September
Haynes, ND
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Haynes, ND
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Haynes, ND
- Average sunshine days in September: 19 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in September
Haynes, ND
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Haynes, ND
- Average cloud cover in September: 23
The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in September
Haynes, ND
- 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).
Haynes, North Dakota, USA
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