September weather forecastDodson, MT
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Dodson, Montana, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 53.4°F (11.9°C).Temperature
Start of September brings a shift in the average high-temperature, falling from August's warm 82.2°F (27.9°C) to an agreeable 71.1°F (21.7°C). Dodson records an average low-temperature of 53.4°F (11.9°C) throughout the month of September.Humidity
In Dodson, the average relative humidity in September is 46%.Rainfall
In September, the rain falls for 8.7 days. Throughout September, 1.14" (29mm) of precipitation is accumulated. In Dodson, during the entire year, the rain falls for 103.3 days and collects up to 11.85" (301mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Dodson. Throughout September, in the average 0.2 snowfall days, it receives 0.2" (5mm) of snow. In Dodson, during the entire year, snow falls for 59.6 days and aggregates up to 20.28" (515mm) of snow.Daylight
In Dodson, the average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:53 pm MDT.
Sunshine
The average sunshine in September in Dodson is 9.9h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. When the Sun is at its strongest around midday, find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dodson, MT
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The months with the lowest average high temperature are January and February (25.7°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in September
Dodson, MT
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Dodson, MT
- Average wind speed in September: 9.9mph
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
Dodson, MT
- Average humidity in September: 46%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall in September
Dodson, MT
- Average rainfall in September: 1.14"
The wettest months (with the highest rainfall) are May and June (1.89").
The driest months (with the least rainfall) are February and December (0.55").
Average rainfall days in September
Dodson, MT
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is December (4 days).
Average snowfall in September
Dodson, MT
- Average snowfall in September: 0.2"
The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Dodson, MT
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Dodson, MT
- Average daylight in September: 12h and 36min
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 54min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Dodson, MT
- Average sunshine days in September: 19.8 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in September
Dodson, 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
Dodson, MT
- Average cloud cover in September: 24
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in September
Dodson, MT
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
