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 ushers in a minor alteration in Houston's climate, with the average high-temperature moving from August's moderately hot 84°F (28.9°C) to a still warm 78.1°F (25.6°C). Houston experiences an average temperature drop to a refreshing 58.6°F (14.8°C) during September nights.Humidity
The average relative humidity in September in Houston is 76%.Rainfall
The month with the least rainfall in Houston is September, when the rain falls for 13 days and typically collects 1.57" (40mm) of precipitation.Snowfall
In Houston, 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 8:14 pm. On the last day of September, in Houston, Indiana, sunrise is at 7:40 am and sunset at 7:28 pm EDT.
Sunshine
In September, the average sunshine in Houston is 8.2h.UV index
In Houston, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What are the temperatures in Houston in September?
What is the average humidity in September in Houston?
What is the driest month in Houston?
How much does it rain in Houston in September?
When it does not snow in Houston?
Does it snow in Houston in September?
What is the average length of the day in September in Houston?
When are sunrise and sunset in September in Houston?
How many hours of sunshine does Houston have in September?
What is the UV index intensity in September in Houston?
Average temperature in September
Houston, IN
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in September
Houston, 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
Houston, IN
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are January, February and April (8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Houston, IN
- Average humidity in September: 76%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Houston, IN
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Houston, IN
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9 days).
Average snowfall in September
Houston, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Houston, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 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
Houston, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in September
Houston, IN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in September
Houston, 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
Houston, 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
Houston, IN
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
Houston, Indiana, USA
Weather forecast for your location
2. Allow the app to use your location
