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
The onset of September comes with a shift in the average high-temperature, falling from a warm 77.2°F (25.1°C) in August to a comfortable 65.8°F (18.8°C). The nighttime temperature in Rexford, Montana, during September displays a significant divergence from daily peaks, averaging at an icy 38.7°F (3.7°C).Humidity
In September, the average relative humidity in Rexford is 64%.Rainfall
In Rexford, in September, during 8.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, in Rexford, there are 136.3 rainfall days, and 15.35" (390mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 0.28" (7mm) of snow. Throughout the year, in Rexford, there are 110.7 snowfall days, and 46.81" (1189mm) 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 6:58 am and sunset at 8:22 pm. On the last day of September, in Rexford, sunrise is at 7:40 am and sunset at 7:20 pm MDT.
Sunshine
The average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September in Rexford is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 during September translates into the following guidance:
Exercise caution. Those with pale skin may experience burns in less than half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Rexford in September?
What is the average humidity in September in Rexford?
How many days does it rain in September in Rexford?
When does it start snowing in Rexford?
How many hours of daylight does Rexford have in September?
What time are sunrise and sunset in September in Rexford?
How many hours of sunshine does Rexford have in September?
What is the UV index reading in September in Rexford?
Average temperature in September
Rexford, MT
- Average high temperature in September: 65.8°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.5°F).
- Average low temperature in September: 38.7°F
The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in September
Rexford, MT
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Rexford, MT
- Average wind speed in September: 3.8mph
The windiest month (with the highest average wind speed) is June (4.4mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity in September
Rexford, MT
- Average humidity in September: 64%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Rexford, MT
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in September
Rexford, MT
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is April (17 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in September
Rexford, MT
- Average snowfall in September: 0.28"
The month with the highest snowfall is February (10").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Rexford, MT
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is December (22.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Rexford, MT
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Rexford, MT
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is March (6.3 days).
Average UV index in September
Rexford, MT
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Rexford, MT
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Rexford, MT
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Rexford, Montana, USA
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