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
A change in temperatures is noted as August gives way to September, with average highs reducing from a pleasant 69.6°F (20.9°C) to a mild 59.9°F (15.5°C). Silver Gate experiences a drastic reduction from day temperatures to an average low of 36.1°F (2.3°C) in September.Humidity
In September, the average relative humidity is 57%.Rainfall
In Silver Gate, in September, during 9 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, in Silver Gate, there are 102.8 rainfall days, and 23.98" (609mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through December. In September, it is snowing for 4.5 days. Throughout September, 5.55" (141mm) of snow is accumulated. Throughout the year, in Silver Gate, there are 186.1 snowfall days, and 135.16" (3433mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:42 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:01 pm MDT.
Sunshine
The average sunshine in September is 10.1h.UV index
In Silver Gate, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in September converts into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September in Silver Gate?
How much does it rain in September?
How many days does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Silver Gate, MT
- Average high temperature in September: 59.9°F
The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (18.9°F).
- Average low temperature in September: 36.1°F
The month with the highest average low temperature is July (43.2°F).
The coldest month (with the lowest average low temperature) is December (2.5°F).
Average pressure in September
Silver Gate, MT
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Silver Gate, MT
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are February and June (7.3mph).
The calmest month (with the lowest average wind speed) is May (6mph).
Average humidity in September
Silver Gate, MT
- Average humidity in September: 57%
The months with the highest relative humidity are February and March (93%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in September
Silver Gate, MT
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is July (1.02").
Average rainfall days in September
Silver Gate, MT
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in September
Silver Gate, MT
- Average snowfall in September: 5.55"
The month with the highest snowfall is April (19.69").
The month with the least snowfall is July (0.24").
Average snowfall days in September
Silver Gate, MT
- Average snowfall days in September: 4.5 days
The month with the highest number of snowfall days is March (25.6 days).
The month with the least snowfall days is July (0.4 days).
Average daylight in September /
Average sunshine in September
Silver Gate, 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 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Silver Gate, MT
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is May (3.1 days).
Average UV index in September
Silver Gate, MT
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in September
Silver Gate, MT
- Average cloud cover in September: 21
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in September
Silver Gate, MT
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The month with the lowest visibility is February (3mi).
Silver Gate, Montana, USA
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