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
During the transition into September, White City observes a decrease in the average high-temperature, falling from a warm 75.2°F (24°C) in August to a comfortable 64.8°F (18.2°C). September nights in White City experience a distinct temperature drop from the daily highs, with an average low-temperature of 40.8°F (4.9°C).Humidity
In September, the average relative humidity is 55%.Rainfall
In White City, Montana, in September, during 9.9 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In White City, during the entire year, the rain falls for 139 days and collects up to 15.63" (397mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in White City. Throughout September, in the average 0.7 snowfall days, it receives 0.55" (14mm) of snow. Throughout the year, in White City, Montana, there are 89.9 snowfall days, and 47.2" (1199mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:04 pm MDT.
Sunshine
In September, the average sunshine is 10h.UV index
In White City, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the temperature in September in White City?
What is the average humidity in September in White City?
How many days does it rain in September in White City?
When does it start snowing in White City?
How many hours of daylight does White City have in September?
When are sunrise and sunset in September in White City?
How many hours of sunshine does White City have in September?
What is the UV index intensity in September in White City?
Average temperature in September
White City, MT
- Average high temperature in September: 64.8°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (25°F).
- Average low temperature in September: 40.8°F
The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (11.1°F).
Average pressure in September
White City, MT
- Average pressure in September: 29.98"Hg
The months with the highest atmospheric pressure are January and December (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
White City, MT
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
White City, MT
- Average humidity in September: 55%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
White City, MT
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (2.24").
The driest months (with the least rainfall) are January and December (0.71").
Average rainfall days in September
White City, MT
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
White City, MT
- Average snowfall in September: 0.55"
The month with the highest snowfall is April (8.11").
The months with the least snowfall are July and August (0").
Average snowfall days in September
White City, MT
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is February (16.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
White City, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
White City, MT
- Average sunshine days in September: 17 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is May (6.4 days).
Average UV index in September
White City, MT
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
White City, MT
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in September
White City, MT
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
White City, Montana, USA
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