September weather forecastMongo, IN
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Mongo, Indiana, with an average temperature ranging between max 72.3°F (22.4°C) and min 54.3°F (12.4°C).Temperature
With the onset of September, Mongo experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 78.3°F (25.7°C) in August to a pleasant 72.3°F (22.4°C). Mongo encounters a steady low-temperature average of 54.3°F (12.4°C) throughout the month of September.Humidity
In Mongo, the average relative humidity in September is 80%.Rainfall
In Mongo, in September, it is raining for 13 days, with typically 2.05" (52mm) of accumulated precipitation. In Mongo, during the entire year, the rain falls for 159.3 days and collects up to 28.31" (719mm) of precipitation.Snowfall
In Mongo, Indiana, snow does not fall in June through September.Daylight
In Mongo, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 7:07 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:24 pm EDT.
Sunshine
In September, the average sunshine is 7.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mongo, IN
- Average high temperature in September: 72.3°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Mongo, IN
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Mongo, IN
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in September
Mongo, IN
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are March, April and October (77%).
Average rainfall in September
Mongo, IN
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is December (1.57").
Average rainfall days in September
Mongo, IN
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is February (7.6 days).
Average snowfall in September
Mongo, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mongo, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mongo, IN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Mongo, IN
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in September
Mongo, IN
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Mongo, IN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Mongo, IN
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).





