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 shift from August to September includes a small decrease in the average high-temperature, from a warm 75.7°F (24.3°C) to a comfortable 67.5°F (19.7°C). September's nights in Topsfield observe an average temperature of 47.5°F (8.6°C).Humidity
In September, the average relative humidity in Topsfield is 80%.Rainfall
In September, the rain falls for 12.8 days. Throughout September, 2.48" (63mm) of precipitation is accumulated. Throughout the year, in Topsfield, there are 140.8 rainfall days, and 31.85" (809mm) of precipitation is accumulated.Snowfall
In Topsfield, Maine, snow does not fall in June through September.Daylight
The average length of the day in September in Topsfield, Maine, is 12h and 31min.On the first day of September, sunrise is at 5:53 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 6:12 pm EDT.
Sunshine
In Topsfield, the average sunshine in September is 7.4h.UV index
The average daily maximum UV index in September in Topsfield, Maine, is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Put precautions into practice - Guidance to elude sunburn is provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Topsfield?
What is the average humidity in September in Topsfield?
How many days does it rain in September in Topsfield?
When it does not snow in Topsfield?
Does it snow in Topsfield in September?
What is the average length of the day in September in Topsfield?
What time are sunrise and sunset in September in Topsfield?
How many hours of sunshine does Topsfield have in September?
What is the UV index reading in September in Topsfield?
Average temperature in September
Topsfield, ME
- Average high temperature in September: 67.5°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in September: 47.5°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in September
Topsfield, ME
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Topsfield, ME
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
Topsfield, ME
- Average humidity in September: 80%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are May and July (77%).
Average rainfall in September
Topsfield, ME
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is March (2.01").
Average rainfall days in September
Topsfield, ME
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in September
Topsfield, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (10.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Topsfield, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (14 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Topsfield, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Topsfield, ME
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in September
Topsfield, ME
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Topsfield, ME
- Average cloud cover in September: 45
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are August and September (Cloud cover 45).
Average visibility in September
Topsfield, ME
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Topsfield, Maine, USA
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