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 September, the meteorological conditions change slightly, with the average high-temperature moving from an agreeable 71.6°F (22°C) in August to a comfortable 64.6°F (18.1°C). Throughout September nights, Perham Junction registers an average low-temperature of 45.5°F (7.5°C).Humidity
In Perham Junction, the average relative humidity in September is 81%.Rainfall
In Perham Junction, in September, during 10.9 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, in Perham Junction, there are 134.8 rainfall days, and 19.33" (491mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 115.6 snowfall days, and 53.43" (1357mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:04 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:23 pm EDT.
Sunshine
In September, the average sunshine is 7.6h.UV index
In Perham Junction, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
How many hours of daylight does Perham Junction have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Perham Junction have in September?
What is the UV index intensity in September?
Average temperature in September
Perham Junction, ME
- Average high temperature in September: 64.6°F
The warmest month (with the highest average high temperature) is July (73°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in September: 45.5°F
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure in September
Perham Junction, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Perham Junction, ME
- Average wind speed in September: 5.4mph
The windiest months (with the highest average wind speed) are January, February and March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Perham Junction, ME
- Average humidity in September: 81%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Perham Junction, ME
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Perham Junction, ME
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Perham Junction, ME
- Average snowfall in September: 0.04"
The month with the highest snowfall is April (8.98").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Perham Junction, ME
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is March (20.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Perham Junction, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).
Average sunshine days in September
Perham Junction, ME
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is September (15.2 days).
The months with the least sunshine days are February and April (8.7 days).
Average UV index in September
Perham Junction, ME
- 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 and December (UV index 1).
Average cloud cover in September
Perham Junction, ME
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 46).
Average visibility in September
Perham Junction, ME
- Average visibility in September: 4mi
The month with the highest visibility is November (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (4mi).
Perham Junction, Maine, USA
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