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 advent of September brings a subtle shift in temperature, with the average high moving from a torrid 95.4°F (35.2°C) in August to a hot 87.3°F (30.7°C). Rochelle records an average low of 68.7°F (20.4°C) throughout the nights in September.Heat index
For September, the heat index is calculated to be a hot 93.2°F (34°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In September, the average relative humidity is 61%.Rainfall
In Rochelle, Texas, during September, the rain falls for 13.5 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 109.4 rainfall days, and 18.62" (473mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall.Daylight
In Rochelle, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:13 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:22 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Rochelle, TX
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (95.4°F).
The month with the lowest average high temperature is December (58.8°F).
- Average low temperature in September: 68.7°F
The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in September
Rochelle, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Rochelle, TX
- Average wind speed in September: 8.4mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is September (8.4mph).
Average humidity in September
Rochelle, TX
- Average humidity in September: 61%
The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is August (51%).
Average rainfall in September
Rochelle, TX
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in September
Rochelle, TX
- Average rainfall days in September: 13.5 days
The months with the highest number of rainy days are May and September (13.5 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in September
Rochelle, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Rochelle, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rochelle, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Rochelle, TX
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is September (14.5 days).
Average UV index in September
Rochelle, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Rochelle, TX
- Average cloud cover in September: 28
The months with the most cloud cover are March and May (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Rochelle, TX
- 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).
Rochelle, Texas, USA
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