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
September implies a soft temperature shift, with average high-temperatures reducing from August's moderately hot 82°F (27.8°C) to a still warm 74.3°F (23.5°C). Throughout September, Mountainville experiences a low-temperature average of 53.2°F (11.8°C).Humidity
The average relative humidity in September in Mountainville, New York, is 79%.Rainfall
January and September are months with the least rain in Mountainville, New York, when the rain falls for 11 days and typically aggregates up to 1.54" (39mm) of rain.Snowfall
In Mountainville, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 4 in September translates into these instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What is the temperature in September in Mountainville?
What is the average humidity in September in Mountainville?
What is the driest month in Mountainville?
How many days does it rain in September in Mountainville?
When it does not snow in Mountainville?
Does it snow in Mountainville in September?
What is the average length of the day in September in Mountainville?
When is the sunrise / sunset in September in Mountainville?
How long on average sun shines in September in Mountainville?
How high is the UV index in September in Mountainville?
Average temperature in September
Mountainville, NY
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
Mountainville, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Mountainville, NY
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are February and March (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Mountainville, NY
- Average humidity in September: 79%
The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Mountainville, NY
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is October (2.64").
The driest months (with the least rainfall) are January and September (1.54").
Average rainfall days in September
Mountainville, NY
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
Mountainville, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mountainville, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mountainville, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Mountainville, NY
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is January (20.6 days).
The months with the least sunshine days are May and June (13.5 days).
Average UV index in September
Mountainville, NY
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Mountainville, NY
- Average cloud cover in September: 43
The months with the most cloud cover are February, March and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Mountainville, NY
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Mountainville, New York, USA
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