September weather forecastTennyson, IN
September
Weather in September
The first month of the autumn, September, is still a warm month in Tennyson, Indiana, with an average temperature ranging between min 60.4°F (15.8°C) and max 79.7°F (26.5°C).Temperature
Transitioning from August to September, Tennyson observes an average high-temperature of a still warm 79.7°F (26.5°C), differing subtly from the previous month. During the month of September, Tennyson's nighttime temperature lowers to an average of 60.4°F (15.8°C).Humidity
The average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 1.93" (49mm) of precipitation.Snowfall
In Tennyson, snow does not fall in May through October.Daylight
The average length of the day in September in Tennyson, Indiana, is 12h and 25min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:32 pm CDT.
Sunshine
In September, the average sunshine in Tennyson is 8.9h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tennyson, IN
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in September
Tennyson, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Tennyson, IN
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is February (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in September
Tennyson, IN
- Average humidity in September: 73%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Tennyson, IN
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is April (5.31").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Tennyson, IN
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is January (9.9 days).
Average snowfall in September
Tennyson, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Tennyson, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.5 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
Tennyson, IN
- Average daylight in September: 12h and 24min
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 36min).
- Average sunshine in September: 8h and 54min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 24min).
Average sunshine days in September
Tennyson, IN
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Tennyson, 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 and December (UV index 2).
Average cloud cover in September
Tennyson, IN
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Tennyson, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





