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
September's arrival signals a moderate reduction in the average high-temperature, easing from a tropical 86.2°F (30.1°C) in August to a warm 80.2°F (26.8°C). An average low-temperature of 59.7°F (15.4°C) is recorded during the nights in September.Humidity
In Bethlehem, the average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall in Bethlehem. Rain falls for 13.2 days and accumulates 1.97" (50mm) of precipitation.Snowfall
April through October are months without snowfall in Bethlehem.Daylight
In September, the average length of the day in Bethlehem is 12h and 23min.On the first day of September, sunrise is at 6:57 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:09 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Bethlehem, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the UV index of 5 transforms into the following advice:
Act with care - The need to guard against sun damage is communicated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What are September temperatures in Bethlehem?
What is the average humidity in September in Bethlehem?
What is the driest month in Bethlehem?
How much does it rain in Bethlehem in September?
When it does not snow in Bethlehem?
How many hours of daylight does Bethlehem have in September?
What time are sunrise and sunset in September in Bethlehem?
How long on average sun shines in September in Bethlehem?
What is the UV index reading in September in Bethlehem?
Average temperature in September
Bethlehem, NC
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 59.7°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in September
Bethlehem, NC
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Bethlehem, NC
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in September
Bethlehem, NC
- Average humidity in September: 75%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Bethlehem, NC
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Bethlehem, NC
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Bethlehem, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Bethlehem, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Bethlehem, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Bethlehem, NC
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in September
Bethlehem, NC
- 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, February and December (UV index 2).
Average cloud cover in September
Bethlehem, NC
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 28).
Average visibility in September
Bethlehem, NC
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Bethlehem, North Carolina, USA
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