September weather forecastIjamsville, IN
September
Weather in September
September, the first month of the autumn in Ijamsville, is also a moderately hot month, with an average temperature fluctuating between 55.4°F (13°C) and 73.6°F (23.1°C).Temperature
Ijamsville's average high-temperature marks a still warm 73.6°F (23.1°C) with the advent of September, closely mirroring that of the preceding month. The average low-temperature during September nights is a moderate 55.4°F (13°C).Humidity
In Ijamsville, the average relative humidity in September is 80%.Rainfall
In Ijamsville, during September, the rain falls for 11 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 133.3 rainfall days, and 16.69" (424mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Ijamsville, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 7:10 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:26 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 moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ijamsville, IN
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Ijamsville, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Ijamsville, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Ijamsville, IN
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Ijamsville, IN
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in September
Ijamsville, IN
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Ijamsville, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Ijamsville, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ijamsville, IN
- Average daylight in September: 12h and 30min
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 54min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Ijamsville, IN
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in September
Ijamsville, IN
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Ijamsville, IN
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in September
Ijamsville, IN
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
