September weather forecastSaint James, IN
September
Weather in September
September, the first month of the autumn in Saint James, is still a warm month, with an average temperature varying between 60.6°F (15.9°C) and 78.6°F (25.9°C).Temperature
Saint James's September reports an average high-temperature of a still warm 78.6°F (25.9°C), exhibiting a minor difference from August. Saint James reports an average nighttime low-temperature of 60.6°F (15.9°C) in September.Humidity
In September, the average relative humidity is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 10.8 days and accumulates 0.91" (23mm) of precipitation.Snowfall
May through October are months without snowfall in Saint James.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Saint James, sunrise is at 6:20 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:34 pm CDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 5 during September translates into the following guidance:
Take necessary precautions - Suggestions to elude sunburn are provided. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint James, IN
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in September: 60.6°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in September
Saint James, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Saint James, IN
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in September
Saint James, IN
- Average humidity in September: 73%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Saint James, IN
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is April (2.28").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in September
Saint James, IN
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Saint James, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Saint James, IN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (5.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint James, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Saint James, IN
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in September
Saint James, IN
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Saint James, IN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Saint James, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
