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
The beginning of September brings a minor change in the average high-temperature, shifting from a moderately hot 77.5°F (25.3°C) in August to an agreeable 71.1°F (21.7°C). During the month of September, Romulus anticipates a mean low-temperature of 51.8°F (11°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Romulus, in September, it is raining for 13.5 days, with typically 1.61" (41mm) of accumulated precipitation. In Romulus, during the entire year, the rain falls for 163.9 days and collects up to 21.34" (542mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:41 pm. On the last day of September, in Romulus, sunrise is at 7:04 am and sunset at 6:49 pm EDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Romulus is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 3 in September suggests the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Romulus in September?
What is the average humidity in September in Romulus?
How much does it rain in Romulus in September?
When it does not snow in Romulus?
Does it snow in Romulus in September?
How many hours of daylight does Romulus have in September?
When are sunrise and sunset in September in Romulus?
How long on average sun shines in September in Romulus?
How high is the UV index in September in Romulus?
Average temperature in September
Romulus, NY
- Average high temperature in September: 71.1°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 (28.8°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Romulus, 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
Romulus, 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 and August (6mph).
Average humidity in September
Romulus, NY
- Average humidity in September: 80%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Romulus, NY
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is July (2.44").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in September
Romulus, NY
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18.3 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall in September
Romulus, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Romulus, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Romulus, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Romulus, NY
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in September
Romulus, 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
Romulus, NY
- Average cloud cover in September: 36
The months with the most cloud cover are January and February (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Romulus, NY
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, March, September and December (5mi).
Romulus, New York, USA
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