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 Massena, the average high-temperature in September marginally drops from a warm 75.9°F (24.4°C) in August to an agreeable 69.3°F (20.7°C). In Massena, in September, the average low-temperature is 50.9°F (10.5°C).Humidity
In September, the average relative humidity in Massena, New York, is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.2 days and typically collects 2.01" (51mm) of precipitation.Snowfall
In Massena, snow does not fall in June through September.Daylight
The average length of the day in September in Massena is 12h and 31min.On the first day of September in Massena, sunrise is at 6:21 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:42 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Massena, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
FAQ
What is the temperature in September in Massena?
What is the average humidity in September in Massena?
What is the driest month in Massena?
How many days does it rain in September in Massena?
When it does not snow in Massena?
Does it snow in Massena in September?
What is the average length of the day in September in Massena?
What time are sunrise and sunset in September in Massena?
How many hours of sunshine does Massena have in September?
What is the UV index reading in September in Massena?
Average temperature in September
Massena, NY
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in September
Massena, NY
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are March and November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Massena, NY
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Massena, NY
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Massena, NY
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Massena, NY
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in September
Massena, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (9.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Massena, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Massena, NY
- Average daylight in September: 12h and 31min
The month with the longest days is June (Average daylight: 15h and 33min).
The month with the shortest days is December (Average daylight: 8h and 51min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in September
Massena, NY
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in September
Massena, NY
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Massena, NY
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Massena, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
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