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 commencement of September involves a temperature shift, with the average high-temperature dropping from a moderately hot 82.8°F (28.2°C) in August to an agreeable 72.7°F (22.6°C). Winnett anticipates an average minimum temperature of 53.2°F (11.8°C) in the month of September.Humidity
In Winnett, the average relative humidity in September is 44%.Rainfall
In September, the rain falls for 8 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. In Winnett, during the entire year, the rain falls for 114.3 days and collects up to 12.13" (308mm) of precipitation.Snowfall
Months with snowfall in Winnett, Montana, are January through May, September through December. September is the first month it typically snows in Winnett, Montana. Throughout September, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow. In Winnett, during the entire year, snow falls for 53.5 days and aggregates up to 18.58" (472mm) of snow.Daylight
The average length of the day in September in Winnett is 12h and 32min.On the first day of September, sunrise is at 6:33 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:54 pm MDT.
Sunshine
In September, the average sunshine is 10.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 4 in September transforms into this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Winnett in September?
What is the average humidity in September in Winnett?
How many days does it rain in September in Winnett?
When does it start snowing in Winnett?
How many hours of daylight does Winnett have in September?
When are sunrise and sunset in September in Winnett?
How long on average sun shines in September in Winnett?
What is the UV index intensity in September in Winnett?
Average temperature in September
Winnett, MT
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (31.1°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is February (18°F).
Average pressure in September
Winnett, MT
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Winnett, MT
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in September
Winnett, MT
- Average humidity in September: 44%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (39%).
Average rainfall in September
Winnett, MT
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Winnett, MT
- Average rainfall days in September: 8 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in September
Winnett, MT
- Average snowfall in September: 0.12"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Winnett, MT
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Winnett, MT
- Average daylight in September: 12h and 3min
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: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in September
Winnett, MT
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in September
Winnett, MT
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Winnett, MT
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in September
Winnett, MT
- 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).
Winnett, Montana, USA
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