| < September >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Allentown/ A.-Bethlehem, Pa in September is somewhat warm at 18.2 °C (64.76 °F).
- Afternoons can be fairly hot with average high temperatures reaching 23.9 °C (75 °F).
- Overnight temperatures are generally quite mild with an average low of 12.3 °C (54.1 °F).
- The mean diurnal temperature range/ variation in September is 11.6 °C (20.9 °F).
- The weather in September is hardly arid. Circa 99.8mm (3.9in) of fluid is discharged.
- The shortest day is 11:45 long and the longest day is 13:05 long with an average length of 12:25.
Check the distance to and compare the Allentown/ A.-Bethlehem, Pa September averages with somewhere beginning with:
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Weather Trend Graph for September in Allentown/ A.-Bethlehem, Pa, Usa
Navigate to September Weather in Locations Surrounding Allentown/ A.-Bethlehem, Pa:
- Wilkes-Barre-Scranton, Pa, Usa - 80 kms (49.7 miles) NNW
- Reading, Pa, Usa - 54.4 kms (33.8 miles) SW
- Harrisburg, Pennsylvania, Usa - 129.5 kms (80.5 miles) WSW
- West Chester, Pa, Usa - 86.8 kms (53.9 miles) SW
- Wilmington Porter Reservoir, De, Usa - 86.8 kms (53.9 miles) SW
- Wilmington, De, Usa - 111 kms (69 miles) S
- Port Jervis, Ny, Usa - 53.3 kms (33.1 miles) NE
- Stamford, Ct, Usa - 126.7 kms (78.7 miles) ENE
- West Point, Ny, Usa - 126.7 kms (78.7 miles) ENE
- Plainfield, Nj, Usa - 126.7 kms (78.7 miles) ENE
- New York, Usa - 126.7 kms (78.7 miles) ENE
- Boontonse, Nj, Usa - 90.9 kms (56.5 miles) ENE
- New York/ Laguardia, Ny, Usa - 129.9 kms (80.7 miles) E
- Newark, Nj, Usa - 107 kms (66.5 miles) E
- New Brunswick, Nj, Usa - 84.9 kms (52.7 miles) ESE
- Hightstown, Nj, Usa - 81.1 kms (50.4 miles) SSE
- Moorestown, Nj, Usa - 81.1 kms (50.4 miles) SSE
- Philadelphia, Pennsylvania, Usa - 86.7 kms (53.8 miles) S