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
In Marengo, entering September brings a subtle temperature decrement, reducing from August's 85.1°F (29.5°C) to a still warm 79°F (26.1°C). Marengo experiences an average low-temperature reading of 59.4°F (15.2°C) throughout September.Humidity
The average relative humidity in September in Marengo is 75%.Rainfall
September is the month with the least rainfall in Marengo. Rain falls for 10.6 days and accumulates 0.98" (25mm) of precipitation.Snowfall
In Marengo, snow does not fall in May through October.Daylight
The average length of the day in September in Marengo is 12h and 25min.On the first day of September in Marengo, sunrise is at 7:15 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:29 pm EDT.
Sunshine
The average sunshine in September in Marengo is 8.2h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take necessary precautions - Defending against sun damage is advocated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Marengo in September?
What is the average humidity in September in Marengo?
What is the driest month in Marengo?
How much does it rain in Marengo in September?
When it does not snow in Marengo?
What is the average length of the day in September in Marengo?
What time are sunrise and sunset in September in Marengo?
How many hours of sunshine does Marengo have in September?
What is the UV index reading in September in Marengo?
Average temperature in September
Marengo, IN
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in September
Marengo, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Marengo, IN
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January, February and April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Marengo, IN
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Marengo, IN
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in September
Marengo, IN
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (8.2 days).
Average snowfall in September
Marengo, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Marengo, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.6 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
Marengo, IN
- Average daylight in September: 12h and 2min
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 30min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in September
Marengo, IN
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (12 days).
Average UV index in September
Marengo, IN
- Average UV index in September: 5
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, November and December (UV index 2).
Average cloud cover in September
Marengo, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Marengo, IN
- Average visibility in September: 5mi
The months with the highest visibility are April, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and December (5mi).
Marengo, Indiana, USA
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