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 shift from August to September includes a small decrease in the average high-temperature, from 94.6°F (34.8°C) to a still hot 87.1°F (30.6°C). Throughout September, the temperature falls to an average low of 69.3°F (20.7°C).Heat index
The heat index for September is estimated at a sweltering 95°F (35°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In September, the average relative humidity in Rumley is 65%.Rainfall
In Rumley, in September, it is raining for 13.7 days, with typically 2.68" (68mm) of accumulated precipitation. In Rumley, during the entire year, the rain falls for 128.9 days and collects up to 24.02" (610mm) of precipitation.Snowfall
In Rumley, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:08 am and sunset at 7:55 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:18 pm CDT.
Sunshine
In Rumley, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September in Rumley?
When it does not snow?
How many hours of daylight does Rumley have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Rumley, TX
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (58.3°F).
- Average low temperature in September: 69.3°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).
Average pressure in September
Rumley, 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 (29.9"Hg).
Average wind speed in September
Rumley, TX
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is March (10.8mph).
The calmest month (with the lowest average wind speed) is September (7.3mph).
Average humidity in September
Rumley, TX
- Average humidity in September: 65%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
Rumley, TX
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is October (3.5").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in September
Rumley, TX
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in September
Rumley, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Rumley, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 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
Rumley, 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 3min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Rumley, TX
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in September
Rumley, 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
Rumley, TX
- Average cloud cover in September: 30
The months with the most cloud cover are March and May (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Rumley, 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).
Rumley, Texas, USA
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