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 advent of September brings an average high-temperature of an agreeable 72.7°F (22.6°C), almost identical to the preceding month. Greenwich records a mean low-temperature of 56.3°F (13.5°C) in September.Humidity
The average relative humidity in September is 80%.Rainfall
In Greenwich, during September, the rain falls for 15.1 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 178.7 rainfall days, and 32.6" (828mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Greenwich, Ohio.Daylight
In September, the average length of the day in Greenwich is 12h and 28min.On the first day of September, sunrise is at 6:57 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:13 pm EDT.
Sunshine
In Greenwich, the average sunshine in September is 8h.UV index
In Greenwich, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Greenwich in September?
What is the average humidity in September in Greenwich?
How many days does it rain in September in Greenwich?
When it does not snow in Greenwich?
Does it snow in Greenwich in September?
What is the average length of the day in September in Greenwich?
When are sunrise and sunset in September in Greenwich?
How long on average sun shines in September in Greenwich?
How high is the UV index in September in Greenwich?
Average temperature in September
Greenwich, OH
- Average high temperature in September: 72.7°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 (30.6°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Greenwich, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Greenwich, OH
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Greenwich, OH
- Average humidity in September: 80%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are October and November (77%).
Average rainfall in September
Greenwich, OH
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is February (2.17").
Average rainfall days in September
Greenwich, OH
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in September
Greenwich, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Greenwich, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Greenwich, OH
- 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 18min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Greenwich, OH
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is November (13 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in September
Greenwich, OH
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Greenwich, OH
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Greenwich, OH
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Greenwich, Ohio, USA
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