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
In Clyde Park, the beginning of September is marked by a lowered average high-temperature, shifting from August's warm 75°F (23.9°C) to an enjoyable 64.8°F (18.2°C). The nighttime temperature in Clyde Park during September displays a significant divergence from daily peaks, averaging at an icy 41.4°F (5.2°C).Humidity
The average relative humidity in September in Clyde Park is 55%.Rainfall
In Clyde Park, during September, the rain falls for 10.6 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Clyde Park, during the entire year, the rain falls for 145.9 days and collects up to 18.27" (464mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Clyde Park. Throughout September, in the average 1 snowfall days, it receives 1.06" (27mm) of snow. In Clyde Park, during the entire year, snow falls for 100.5 days and aggregates up to 58.7" (1491mm) of snow.Daylight
In Clyde Park, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:59 pm. On the last day of September, in Clyde Park, Montana, sunrise is at 7:20 am and sunset at 7:03 pm MDT.
Sunshine
The average sunshine in September in Clyde Park is 10.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 3 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What are September temperatures in Clyde Park?
What is the average humidity in September in Clyde Park?
How much does it rain in Clyde Park in September?
When does it start to snow in Clyde Park?
How many hours of daylight does Clyde Park have in September?
When is the sunrise / sunset in September in Clyde Park?
How long on average sun shines in September in Clyde Park?
What is the UV index reading in September in Clyde Park?
Average temperature in September
Clyde Park, MT
- Average high temperature in September: 64.8°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in September: 41.4°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is February (11.7°F).
Average pressure in September
Clyde Park, MT
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Clyde Park, MT
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in September
Clyde Park, MT
- Average humidity in September: 55%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Clyde Park, MT
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.56").
The driest months (with the least rainfall) are January and December (1.02").
Average rainfall days in September
Clyde Park, MT
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is December (6.8 days).
Average snowfall in September
Clyde Park, MT
- Average snowfall in September: 1.06"
The month with the highest snowfall is March (9.72").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Clyde Park, MT
- Average snowfall days in September: 1 days
The month with the highest number of snowfall days is February (17.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Clyde Park, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Clyde Park, MT
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is April (7.1 days).
Average UV index in September
Clyde Park, MT
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Clyde Park, MT
- Average cloud cover in September: 21
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Clyde Park, MT
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is February (4mi).
Clyde Park, Montana, USA
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