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's arrival coincides with a drop in the average high-temperature, decreasing from August's pleasant 72°F (22.2°C) to a comfortable 61°F (16.1°C). Throughout September, East Glacier Park notes a dramatic plunge from the daily high to an average low-temperature of 37.8°F (3.2°C).Humidity
The average relative humidity in September is 64%.Rainfall
In East Glacier Park, in September, it is raining for 8.8 days, with typically 0.87" (22mm) of accumulated precipitation. In East Glacier Park, during the entire year, the rain falls for 118.6 days and collects up to 20.75" (527mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 1.2 snowfall days, it receives 1.02" (26mm) of snow. Throughout the year, there are 128.7 snowfall days, and 92.13" (2340mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 34min.On the first day of the month, sunrise is at 6:51 am and sunset at 8:13 pm. On the last day of September, in East Glacier Park, Montana, sunrise is at 7:32 am and sunset at 7:13 pm MDT.
Sunshine
In East Glacier Park, Montana, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index in East Glacier Park is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 3 in September leads to these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What is the temperature in September in East Glacier Park?
What is the average humidity in September in East Glacier Park?
How much does it rain in East Glacier Park in September?
When does it start to snow in East Glacier Park?
What is the average length of the day in September in East Glacier Park?
When is the sunrise / sunset in September in East Glacier Park?
How many hours of sunshine does East Glacier Park have in September?
What is the UV index intensity in September in East Glacier Park?
Average temperature in September
East Glacier Park, MT
- Average high temperature in September: 61°F
The warmest month (with the highest average high temperature) is July (73°F).
The month with the lowest average high temperature is December (23.2°F).
- Average low temperature in September: 37.8°F
The months with the highest average low temperature are July and August (44.2°F).
The coldest month (with the lowest average low temperature) is February (10.9°F).
Average pressure in September
East Glacier Park, MT
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
East Glacier Park, MT
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is November (7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
East Glacier Park, MT
- Average humidity in September: 64%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
East Glacier Park, MT
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is January (2.56").
The driest month (with the least rainfall) is August (0.71").
Average rainfall days in September
East Glacier Park, MT
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
East Glacier Park, MT
- Average snowfall in September: 1.02"
The month with the highest snowfall is January (20.16").
The months with the least snowfall are July and August (0").
Average snowfall days in September
East Glacier Park, MT
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is December (22.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
East Glacier Park, MT
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
East Glacier Park, MT
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in September
East Glacier Park, MT
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
East Glacier Park, MT
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in September
East Glacier Park, 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, February, March and December (4mi).
East Glacier Park, Montana, USA
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