September weather forecastPort Washington, OH
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Port Washington, Ohio, with an average temperature varying between 75°F (23.9°C) and 55.2°F (12.9°C).Temperature
September brings a slight decrease in the average high-temperature, shifting from 81.9°F (27.7°C) in August to a still moderately hot 75°F (23.9°C). Throughout September, Port Washington encounters an average temperature drop to a cool 55.2°F (12.9°C).Humidity
In Port Washington, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 1.81" (46mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Port Washington, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:54 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:09 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In Port Washington, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Port Washington, OH
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in September
Port Washington, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Port Washington, OH
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Port Washington, OH
- Average humidity in September: 78%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, August and November (77%).
Average rainfall in September
Port Washington, OH
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Port Washington, OH
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in September
Port Washington, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Port Washington, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Port Washington, OH
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Port Washington, OH
- Average sunshine days in September: 14 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (8.9 days).
Average UV index in September
Port Washington, OH
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Port Washington, OH
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Port Washington, OH
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).
