Allentown
Pennsylvania, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Allentown, PA

An aerial view of the vast city of Allentown in Pennsylvania, on a hot, sunny day, with the partly cloudy sky and a far view of a clear horizon line
An aerial view of the vast city of Allentown in Pennsylvania, on a hot, sunny day, with the partly cloudy sky and a far view of a clear horizon line
October, the same as September, is another comfortable autumn month in Allentown, Pennsylvania, with temperature in the range of an average low of 41.4°F (5.2°C) and an average high of 63.7°F (17.6°C).

Temperature

In Allentown, the average high-temperature decreases, from a moderately hot 74.8°F (23.8°C) in September, to a comfortable 63.7°F (17.6°C). In Allentown, Pennsylvania, the average low-temperature is 41.4°F (5.2°C).

Humidity

The average relative humidity in Allentown, Pennsylvania, is 71.8%.

Rainfall

In Allentown, Pennsylvania, during 9.1 rainfall days, 3.9" (98.6mm) of precipitation is typically accumulated. Throughout the year, there are 126.8 rainfall days, and 45.4" (1151.9mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In October, the average length of the day is 11.1h.

Sunshine

In October, the average sunshine is 6h.

UV index

In Allentown, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for average individuals.
Note: In October, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in October in Allentown?

In Allentown, in October, the average high-temperature is 63.7°F (17.6°C), and the average low-temperature is 41.4°F (5.2°C).

What is the average humidity in October in Allentown?

In Allentown, Pennsylvania, the average relative humidity in October is 71.8%.

How much does it rain in Allentown in October?

In Allentown, during October, the rain falls for 9.1 days and regularly aggregates up to 3.9" (98.6mm) of precipitation.

Does it snow in Allentown in October?

In Allentown, in October, it doesn't snow. In November, it regularly snows.

When it does not snow in Allentown?

May through October are months without snowfall.

How many hours of daylight does Allentown have in October?

In Allentown, Pennsylvania, the average length of the day in October is 11.1h.

How long on average sun shines in October in Allentown?

In Allentown, Pennsylvania, the average sunshine in October is 6h.

What is the UV index intensity in October in Allentown?

In Allentown, the average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in October - Allentown, PA
  • Average high temperature in October: 63.6°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in October: 41.3°F

The month with the highest average low temperature is July (62.7°F).
The coldest month (with the lowest average low temperature) is January (19.5°F).

Average humidity in October - Allentown, PA
  • Average humidity in October: 71.8%

The month with the highest relative humidity is September (74%).
The month with the lowest relative humidity is April (60.9%).

Average rainfall in October - Allentown, PA
  • Average rainfall in October: 3.9"

The wettest month (with the highest rainfall) is July (5").
The driest month (with the lowest rainfall) is February (2.7").

Average rainfall days in October - Allentown, PA
  • Average rainfall days in October: 9.1 days

Months with the highest number of rainy days are April and May (12.1 days).
Months with the lowest number of rainy days are September and October (9.1 days).

Average snowfall in October - Allentown, PA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (11.1").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average snowfall days in October - Allentown, PA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (5.6 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in October / Average sunshine in October - Allentown, PA
  • Average daylight in October: 11.1h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in October: 6h

Months with most sunshine are June and July (Average sunshine: 9h).
Months with least sunshine are November and December (Average sunshine: 4).

Average UV index in October - Allentown, PA
  • Average UV index in October: 4

Months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).