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
September witnesses a gentle descent in average high-temperature, descending from August's warm 83.3°F (28.5°C) to a still moderately hot 77.4°F (25.2°C). Helmsburg encounters an average low-temperature of 58.3°F (14.6°C) during September nights.Humidity
In September, the average relative humidity is 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.3 days and typically collects 1.57" (40mm) of precipitation.Snowfall
In Helmsburg, Indiana, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 7:14 am and sunset at 8:15 pm. On the last day of September, in Helmsburg, Indiana, sunrise is at 7:40 am and sunset at 7:28 pm EDT.
Sunshine
In Helmsburg, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in Helmsburg, Indiana, is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 during September translates into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What are the temperatures in Helmsburg in September?
What is the average humidity in September in Helmsburg?
What is the driest month in Helmsburg?
How much does it rain in Helmsburg in September?
When it does not snow in Helmsburg?
Does it snow in Helmsburg in September?
What is the average length of the day in September in Helmsburg?
When is the sunrise / sunset in September in Helmsburg?
How many hours of sunshine does Helmsburg have in September?
How high is the UV index in September in Helmsburg?
Average temperature in September
Helmsburg, IN
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Helmsburg, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Helmsburg, IN
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Helmsburg, IN
- Average humidity in September: 77%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Helmsburg, IN
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Helmsburg, IN
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (19.6 days).
The months with the least rainy days are January and February (8 days).
Average snowfall in September
Helmsburg, IN
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Helmsburg, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.8 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
Helmsburg, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Helmsburg, IN
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (8.6 days).
Average UV index in September
Helmsburg, 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, October, November and December (UV index 2).
Average cloud cover in September
Helmsburg, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Helmsburg, IN
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
Helmsburg, Indiana, USA
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