September weather forecastEmigrant, MT
September
Weather in September
September, the first month of the autumn in Emigrant, is still a comfortable month, with an average temperature fluctuating between 40.8°F (4.9°C) and 64.8°F (18.2°C).Temperature
In Emigrant, the average high-temperature in September drops from a warm 75.2°F (24°C) in August to an enjoyable 64.8°F (18.2°C). A noteworthy temperature dip to a cold 40.8°F (4.9°C) is observed during the nights of September in Emigrant.Humidity
In September, the average relative humidity in Emigrant is 55%.Rainfall
In Emigrant, in September, it is raining for 9.9 days, with typically 1.1" (28mm) of accumulated precipitation. In Emigrant, during the entire year, the rain falls for 139 days and collects up to 15.63" (397mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Emigrant. September is the first month it typically snows in Emigrant. Throughout September, in the average 0.7 snowfall days, it receives 0.55" (14mm) of snow. Throughout the year, in Emigrant, there are 89.9 snowfall days, and 47.2" (1199mm) of snow is accumulated.Daylight
In Emigrant, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:45 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:04 pm MDT.
Sunshine
In Emigrant, the average sunshine in September is 10h.UV index
In September, the average daily maximum UV index in Emigrant is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Be vigilant - Preventing sunburn is recommended. It's recommended to limit sun exposure when its radiation is at its peak during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Emigrant, 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
Emigrant, 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
Emigrant, 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
Emigrant, 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
Emigrant, 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
Emigrant, 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
Emigrant, 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
Emigrant, 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
Emigrant, MT
- Average daylight in September: 12h and 30min
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
Emigrant, 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
Emigrant, 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
Emigrant, 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
Emigrant, 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).
