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
Byron's weather subtly changes with the onset of September, barely falling from a warm 77.9°F (25.5°C) in August to a pleasant 71.8°F (22.1°C). During the month of September, Byron's nighttime temperature lowers to an average of 52.7°F (11.5°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In Byron, in September, during 11.5 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Byron, during the entire year, the rain falls for 127.4 days and collects up to 16.57" (421mm) of precipitation.Snowfall
In Byron, snow does not fall in June through September.Daylight
In Byron, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:37 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:54 pm EDT.
Sunshine
The average sunshine in September is 8.7h.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 unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Byron?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Byron, NY
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Byron, 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
Byron, NY
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July, August and September (6.5mph).
Average humidity in September
Byron, NY
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are May and July (77%).
Average rainfall in September
Byron, NY
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Byron, NY
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in September
Byron, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Byron, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Byron, 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 4min
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 24min).
Average sunshine days in September
Byron, NY
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is February (11 days).
Average UV index in September
Byron, 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, February and December (UV index 1).
Average cloud cover in September
Byron, NY
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Byron, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
Byron, New York, USA
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