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's arrival subtly correlates with a reduction in the average high-temperature, down from a warm 75°F (23.9°C) in August to a pleasant 68.9°F (20.5°C). The average temperature during September nights in Prospect is registered at a cool 50.2°F (10.1°C).Humidity
The average relative humidity in September in Prospect, New York, is 80%.Rainfall
The months with the least rainfall in Prospect are March and September Rain falls for 13.9 days and accumulates 1.93" (49mm) of rain.Snowfall
In Prospect, New York, snow does not fall in June through September.Daylight
In Prospect, the average length of the day in September is 12h and 29min.On the first day of September in Prospect, sunrise is at 6:25 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:43 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Act with care - The need to guard against sun damage is communicated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the temperature in September in Prospect?
What is the average humidity in September in Prospect?
What is the driest month in Prospect?
How many days does it rain in September in Prospect?
When it does not snow in Prospect?
Does it snow in Prospect in September?
What is the average length of the day in September in Prospect?
When are sunrise and sunset in September in Prospect?
How many hours of sunshine does Prospect have in September?
How high is the UV index in September in Prospect?
Average temperature in September
Prospect, NY
- Average high temperature in September: 68.9°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 (25.5°F).
- Average low temperature in September: 50.2°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Prospect, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Prospect, NY
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Prospect, NY
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (78%).
Average rainfall in September
Prospect, NY
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (2.95").
The driest months (with the least rainfall) are March and September (1.93").
Average rainfall days in September
Prospect, NY
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Prospect, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (8.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Prospect, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Prospect, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 4min
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 18min).
Average sunshine days in September
Prospect, NY
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (4.6 days).
Average UV index in September
Prospect, NY
- 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 January, February, November and December (UV index 1).
Average cloud cover in September
Prospect, NY
- Average cloud cover in September: 39
The months with the most cloud cover are January and February (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Prospect, NY
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Prospect, New York, USA
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