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 arrival of September signals a subtle shift in temperature, down from a warm 81.7°F (27.6°C) in August to a still moderately hot 75.9°F (24.4°C). An average low-temperature of 57.9°F (14.4°C) is expected during September.Humidity
In Allman, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 2.2" (56mm) of precipitation.Snowfall
In Allman, snow does not fall in May through September.Daylight
In September, the average length of the day in Allman, Indiana, is 12h and 26min.On the first day of September in Allman, Indiana, sunrise is at 7:14 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:29 pm EDT.
Sunshine
The average sunshine in September in Allman is 8.4h.UV index
In Allman, Indiana, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What is the average September temperature in Allman?
What is the average humidity in September in Allman?
What is the driest month in Allman?
How much does it rain in Allman in September?
When it does not snow in Allman?
Does it snow in Allman in September?
What is the average length of the day in September in Allman?
When are sunrise and sunset in September in Allman?
How long on average sun shines in September in Allman?
What is the UV index reading in September in Allman?
Average temperature in September
Allman, IN
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Allman, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Allman, IN
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Allman, IN
- Average humidity in September: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Allman, IN
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in September
Allman, IN
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Allman, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Allman, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.6 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
Allman, 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 24min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Allman, IN
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in September
Allman, IN
- Average UV index in September: 4
The months with the highest UV index are 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
Allman, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Allman, IN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, July and December (5mi).
Allman, Indiana, USA
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