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
Saint Joe's progression into September involves a minor drop in the average high-temperature, slightly receding from a moderately hot 78.4°F (25.8°C) in August to an agreeable 72.7°F (22.6°C). Saint Joe in September anticipates an average nighttime temperature of 55.2°F (12.9°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Saint Joe, in September, it is raining for 14.1 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, in Saint Joe, there are 157.1 rainfall days, and 24.09" (612mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Saint Joe, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 7:06 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 7:22 pm EDT.
Sunshine
In September, the average sunshine is 7.9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Saint Joe have in September?
What is the UV index reading in September in Saint Joe?
Average temperature in September
Saint Joe, IN
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in September
Saint Joe, IN
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Saint Joe, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in September
Saint Joe, IN
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Saint Joe, IN
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are January and December (1.34").
Average rainfall days in September
Saint Joe, IN
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Saint Joe, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Saint Joe, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.1 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 Joe, IN
- 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: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Saint Joe, IN
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in September
Saint Joe, IN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Saint Joe, IN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Saint Joe, IN
- 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 Joe, Indiana, USA
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