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 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
As September takes its course, Fresno's average high-temperature registers at a still hot 87.4°F (30.8°C), closely aligning with the preceding month. In Fresno, September nights cool down to an average of 72.9°F (22.7°C).Heat index
During September, the heat index is evaluated at a fiery hot 102.2°F (39°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The average relative humidity in September is 77%.Rainfall
The month with the most rainfall is September, when the rain falls for 14.3 days and typically aggregates up to 1.89" (48mm) of precipitation.Snowfall
In Fresno, snow does not fall in March through December.Daylight
The average length of the day in September in Fresno, Texas, is 12h and 20min.On the first day of September in Fresno, Texas, sunrise is at 6:59 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:08 pm CDT.
Sunshine
In September, the average sunshine in Fresno is 8.4h.UV index
The average daily maximum UV index in September in Fresno, Texas, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, the UV index of 6 transforms into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
Is it hot in Fresno during September?
What is the average humidity in September in Fresno?
What is the rainiest month in Fresno?
How many days does it rain in September in Fresno?
When it does not snow in Fresno?
What is the average length of the day in September in Fresno?
When is the sunrise / sunset in September in Fresno?
How long on average sun shines in September in Fresno?
How high is the UV index in September in Fresno?
Average temperature in September
Fresno, TX
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is August (92.8°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in September: 72.9°F
The months with the highest average low temperature are July and August (76.6°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in September
Fresno, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Fresno, TX
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is September (6mph).
Average humidity in September
Fresno, TX
- Average humidity in September: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Fresno, TX
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is September (1.89").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Fresno, TX
- Average rainfall days in September: 14.3 days
The months with the highest number of rainy days are July and September (14.3 days).
The month with the least rainy days is February (7.2 days).
Average snowfall days in September
Fresno, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Fresno, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Fresno, TX
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in September
Fresno, 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
Fresno, TX
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Fresno, 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).
Fresno, Texas, USA
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