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
As September commences, the average high-temperature shows a reduction, transitioning from a warm 82.9°F (28.3°C) in August to a pleasant 71.6°F (22°C). During September, the average low-temperature in Poplar is a cool 54.3°F (12.4°C).Humidity
In Poplar, the average relative humidity in September is 46%.Rainfall
In Poplar, during September, the rain falls for 8 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, in Poplar, there are 95.7 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Poplar, the average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:41 pm. On the last day of September, in Poplar, sunrise is at 6:59 am and sunset at 6:41 pm MDT.
Sunshine
In Poplar, the average sunshine in September is 10.1h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What are September temperatures in Poplar?
What is the average humidity in September in Poplar?
How many days does it rain in September in Poplar?
When it does not snow in Poplar?
Does it snow in Poplar in September?
What is the average length of the day in September in Poplar?
What time are sunrise and sunset in September in Poplar?
How many hours of sunshine does Poplar have in September?
How high is the UV index in September in Poplar?
Average temperature in September
Poplar, MT
- Average high temperature in September: 71.6°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is February (23°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (63.7°F).
The coldest months (with the lowest average low temperature) are January and February (10.2°F).
Average pressure in September
Poplar, MT
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Poplar, MT
- Average wind speed in September: 10.3mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).
Average humidity in September
Poplar, MT
- Average humidity in September: 46%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (42%).
Average rainfall in September
Poplar, MT
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Poplar, MT
- Average rainfall days in September: 8 days
The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Poplar, MT
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Poplar, MT
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (13.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Poplar, 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: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Poplar, MT
- Average sunshine days in September: 21.4 days
The month with the most sunshine days is September (21.4 days).
The month with the least sunshine days is April (13.8 days).
Average UV index in September
Poplar, 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
Poplar, MT
- Average cloud cover in September: 24
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in September
Poplar, 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).
Poplar, Montana, USA
Weather forecast for your location
2. Allow the app to use your location
