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
A subtle shift in Upper Lehigh's weather is observed as August turns into September, with the average high temperature reducing from a warm 77.9°F (25.5°C) to an agreeable 71.4°F (21.9°C). An average low-temperature of 52°F (11.1°C) is noted in Upper Lehigh during the month of September.Humidity
In September, the average relative humidity in Upper Lehigh is 80%.Rainfall
The month with the least rainfall in Upper Lehigh, Pennsylvania, is September, when the rain falls for 13.8 days and typically collects 2.13" (54mm) of precipitation.Snowfall
June through September are months without snowfall in Upper Lehigh.Daylight
In Upper Lehigh, the average length of the day in September is 12h and 28min.On the first day of September in Upper Lehigh, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:46 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index in Upper Lehigh is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the average September temperature in Upper Lehigh?
What is the average humidity in September in Upper Lehigh?
What is the driest month in Upper Lehigh?
How much does it rain in Upper Lehigh in September?
When it does not snow in Upper Lehigh?
Does it snow in Upper Lehigh in September?
How many hours of daylight does Upper Lehigh have in September?
When is the sunrise / sunset in September in Upper Lehigh?
How long on average sun shines in September in Upper Lehigh?
What is the UV index intensity in September in Upper Lehigh?
Average temperature in September
Upper Lehigh, PA
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in September
Upper Lehigh, PA
- Average pressure in September: 30.07"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Upper Lehigh, PA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Upper Lehigh, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is April (78%).
Average rainfall in September
Upper Lehigh, PA
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in September
Upper Lehigh, PA
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (7 days).
Average snowfall in September
Upper Lehigh, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Upper Lehigh, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Upper Lehigh, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Upper Lehigh, PA
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is November (15.6 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in September
Upper Lehigh, PA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Upper Lehigh, PA
- Average cloud cover in September: 44
The months with the most cloud cover are February and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Upper Lehigh, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Upper Lehigh, Pennsylvania, USA
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