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 involves a decrease in the average high-temperature, dropping from a very hot 97.2°F (36.2°C) to a tropical 87.6°F (30.9°C). During the month of September, Rochester anticipates a mean low-temperature of 68.9°F (20.5°C).Heat index
September's mean heat index is appraised at a hot 93.2°F (34°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
September through December, with an average relative humidity of 56%, are the most humid months in Rochester.Rainfall
In Rochester, during September, the rain falls for 11.5 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Rochester, during the entire year, the rain falls for 96.8 days and collects up to 16.42" (417mm) of precipitation.Snowfall
May through October are months without snowfall in Rochester.Daylight
In September, the average length of the day in Rochester is 12h and 22min.On the first day of the month, sunrise is at 7:14 am and sunset at 8:04 pm. On the last day of September, in Rochester, sunrise is at 7:33 am and sunset at 7:24 pm CDT.
Sunshine
In Rochester, Texas, the average sunshine in September is 8.7h.UV index
In Rochester, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
How hot is September in Rochester?
What is the most humid month in Rochester?
What is the average humidity in September in Rochester?
How many days does it rain in September in Rochester?
When it does not snow in Rochester?
What is the average length of the day in September in Rochester?
When are sunrise and sunset in September in Rochester?
How long on average sun shines in September in Rochester?
What is the UV index reading in September in Rochester?
Average temperature in September
Rochester, TX
- Average high temperature in September: 87.6°F
The warmest month (with the highest average high temperature) is August (97.2°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in September: 68.9°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 (37°F).
Average pressure in September
Rochester, 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 (29.86"Hg).
Average wind speed in September
Rochester, TX
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is April (13.2mph).
The calmest month (with the lowest average wind speed) is September (9.4mph).
Average humidity in September
Rochester, TX
- Average humidity in September: 56%
The months with the highest relative humidity are September, October, November and December (56%).
The month with the lowest relative humidity is August (45%).
Average rainfall in September
Rochester, TX
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in September
Rochester, TX
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in September
Rochester, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Rochester, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rochester, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).
Average sunshine days in September
Rochester, TX
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is May (15.8 days).
Average UV index in September
Rochester, 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
Rochester, TX
- Average cloud cover in September: 25
The month with the most cloud cover is March (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Rochester, 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).
Rochester, Texas, USA
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