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 moderately hot 77°F (25°C) in August to a refreshing 66.2°F (19°C). Haugan experiences a dramatic descent in temperature during September, with the average nighttime reading settling at a cold 40.1°F (4.5°C).Humidity
The average relative humidity in September in Haugan is 63%.Rainfall
In September, the rain falls for 8.5 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. Throughout the year, in Haugan, there are 88.5 rainfall days, and 25.12" (638mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Haugan. September is the first month it typically snows in Haugan, Montana. Throughout September, in the average 1 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, there are 133.2 snowfall days, and 146.61" (3724mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 7:01 am and sunset at 8:21 pm. On the last day of September, in Haugan, Montana, sunrise is at 7:40 am and sunset at 7:22 pm MDT.
Sunshine
The average sunshine in September in Haugan is 8.9h.UV index
In Haugan, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 3 in September translates into these instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Haugan?
What is the average humidity in September in Haugan?
How many days does it rain in September in Haugan?
When does it start to snow in Haugan?
What is the average length of the day in September in Haugan?
When is the sunrise / sunset in September in Haugan?
How many hours of sunshine does Haugan have in September?
What is the UV index intensity in September in Haugan?
Average temperature in September
Haugan, MT
- Average high temperature in September: 66.2°F
The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in September: 40.1°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 (16.9°F).
Average pressure in September
Haugan, MT
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in September
Haugan, MT
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest months (with the lowest average wind speed) are August and September (4.1mph).
Average humidity in September
Haugan, MT
- Average humidity in September: 63%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (54%).
Average rainfall in September
Haugan, MT
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is January (3.58").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in September
Haugan, MT
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (13.3 days).
The months with the least rainy days are January and February (2.8 days).
Average snowfall in September
Haugan, MT
- Average snowfall in September: 0.43"
The month with the highest snowfall is January (29.53").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Haugan, MT
- Average snowfall days in September: 1 days
The month with the highest number of snowfall days is March (22.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Haugan, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Haugan, MT
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is March (7.5 days).
Average UV index in September
Haugan, MT
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Haugan, MT
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in September
Haugan, 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 January (2mi).
Haugan, Montana, USA
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