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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from 94.3°F (34.6°C) in August to a still hot 88.7°F (31.5°C). Bloomington records an average low-temperature of 73.2°F (22.9°C) throughout the month of September.Heat index
The heat index in September is estimated at a scorching 104°F (40°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
The average relative humidity in September is 74%.Rainfall
September is the month with the most rainfall. Rain falls for 16.2 days and accumulates 1.85" (47mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In September, the average length of the day is 12h and 19min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:14 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Bloomington is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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?
What is the rainiest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Bloomington have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Bloomington, TX
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in September: 73.2°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (46.6°F).
Average pressure in September
Bloomington, TX
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Bloomington, TX
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in September
Bloomington, TX
- Average humidity in September: 74%
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Bloomington, TX
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is September (1.85").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in September
Bloomington, TX
- Average rainfall days in September: 16.2 days
The month with the highest number of rainy days is September (16.2 days).
The month with the least rainy days is February (7.6 days).
Average snowfall in September
Bloomington, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Bloomington, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Bloomington, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Bloomington, TX
- Average sunshine days in September: 12 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is September (12 days).
Average UV index in September
Bloomington, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Bloomington, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Bloomington, 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).
Bloomington, Texas, USA
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