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 average high-temperature for September is a still moderately hot 73.8°F (23.2°C), closely aligning with the temperature of the preceding month. Saint Johns, during September, witnesses an average low-temperature of 55.6°F (13.1°C).Humidity
In September, the average relative humidity in Saint Johns is 80%.Rainfall
In Saint Johns, in September, during 14.4 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Saint Johns, during the entire year, the rain falls for 169.7 days and collects up to 30.47" (774mm) of precipitation.Snowfall
In Saint Johns, snow does not fall in June through September.Daylight
In September, the average length of the day in Saint Johns is 12h and 27min.On the first day of the month, sunrise is at 7:04 am and sunset at 8:07 pm. On the last day of September, in Saint Johns, sunrise is at 7:32 am and sunset at 7:19 pm EDT.
Sunshine
In Saint Johns, the average sunshine in September is 7.9h.UV index
In Saint Johns, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing 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 Saint Johns in September?
What is the average humidity in September in Saint Johns?
How many days does it rain in September in Saint Johns?
When it does not snow in Saint Johns?
Does it snow in Saint Johns in September?
How many hours of daylight does Saint Johns have in September?
When are sunrise and sunset in September in Saint Johns?
How many hours of sunshine does Saint Johns have in September?
What is the UV index intensity in September in Saint Johns?
Average temperature in September
Saint Johns, OH
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Saint Johns, OH
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Saint Johns, OH
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Saint Johns, OH
- Average humidity in September: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Saint Johns, OH
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in September
Saint Johns, OH
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Saint Johns, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Saint Johns, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint Johns, OH
- Average daylight in September: 12h and 2min
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 18min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Saint Johns, OH
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in September
Saint Johns, OH
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Saint Johns, OH
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Saint Johns, OH
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Saint Johns, Ohio, USA
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