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 coincides with a small decrease in the average high-temperature, down to an enjoyable 66.7°F (19.3°C) from a warm 73.9°F (23.3°C). An average nighttime temperature of 46.9°F (8.3°C) is observed during September.Humidity
The average relative humidity in September is 81%.Rainfall
In Irasburg, in September, during 13 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 163.6 rainfall days, and 31.65" (804mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Irasburg, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:31 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
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 radiation for ordinary individuals.Note: The UV index of 3 during September leads to these advisories:
Undertake precautions - It is suggested to shield oneself from sunburn. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Irasburg in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Irasburg?
What time are sunrise and sunset in September?
How many hours of sunshine does Irasburg have in September?
What is the UV index intensity in September?
Average temperature in September
Irasburg, VT
- Average high temperature in September: 66.7°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in September: 46.9°F
The month with the highest average low temperature is July (54.9°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in September
Irasburg, VT
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Irasburg, VT
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Irasburg, VT
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Irasburg, VT
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is February (2.24").
Average rainfall days in September
Irasburg, VT
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is June (19.1 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
Irasburg, VT
- Average snowfall in September: 0"
The month with the highest snowfall is February (14.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Irasburg, VT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Irasburg, VT
- 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 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 12min).
Average sunshine days in September
Irasburg, VT
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is February (4.7 days).
Average UV index in September
Irasburg, VT
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Irasburg, VT
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Irasburg, VT
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Irasburg, Vermont, USA
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