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 a hot 87.3°F (30.7°C) in August to a warm 81.1°F (27.3°C). In La Crosse, the expected average low-temperature for September is an enjoyable 62.8°F (17.1°C).Heat index
During September, the heat index is evaluated at a hot 86°F (30°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
The average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 12.9 days and accumulates 1.85" (47mm) of precipitation.Snowfall
In La Crosse, snow does not fall in May through October.Daylight
In La Crosse, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:44 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:56 pm EDT.
Sunshine
In La Crosse, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 5 in September leads to these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does La Crosse have in September?
What is the UV index reading in September?
Average temperature in September
La Crosse, VA
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
La Crosse, VA
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
La Crosse, VA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
La Crosse, VA
- Average humidity in September: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
La Crosse, VA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
La Crosse, VA
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
La Crosse, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
La Crosse, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.2 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
La Crosse, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
La Crosse, VA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11 days).
Average UV index in September
La Crosse, VA
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
La Crosse, VA
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
La Crosse, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
La Crosse, Virginia, USA
Weather forecast for your location
2. Allow the app to use your location