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 coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 76.3°F (24.6°C) to an agreeable 69.8°F (21°C). During the month of September, the temperature falls to an average of 50.7°F (10.4°C).Humidity
In September, the average relative humidity is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 2.32" (59mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Morrisville, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:27 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:45 pm EDT.
Sunshine
In Morrisville, New York, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 3 translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in Morrisville in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Morrisville, NY
- Average high temperature in September: 69.8°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in September
Morrisville, NY
- Average pressure in September: 30.06"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
Morrisville, NY
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Morrisville, NY
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in September
Morrisville, NY
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is April (3.66").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in September
Morrisville, NY
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Morrisville, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (10.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Morrisville, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Morrisville, 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 6min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in September
Morrisville, NY
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in September
Morrisville, NY
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Morrisville, NY
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in September
Morrisville, NY
- Average visibility in September: 5mi
The month with the highest visibility is October (6mi).
The months with the lowest visibility are January and February (4mi).
Morrisville, New York, USA
Weather forecast for your location
2. Allow the app to use your location