Monthly weather forecast and climate
Bethlehem, PA

A tranquil setting of dry trees and neat fields behind this large hall in the Lehigh University in Bethlehem, Pennsylvania, under a scenic clear
A tranquil setting of dry trees and neat fields behind this large hall in the Lehigh University in Bethlehem, Pennsylvania, under a scenic clear
With an average high-temperature of 36°F (2.2°C) and an average low-temperature of 19°F (-7.2°C), January is the coldest month in Bethlehem. Throughout January, 3" (77mm) of precipitation is accumulated.
Weather in January »
In Bethlehem, the average high-temperature is 39.9°F (4.4°C), and the average low-temperature is 21.9°F (-5.6°C). February is the month with the least rainfall, with 2.8" (71.1mm) of accumulated precipitation.
Weather in February »
The average high-temperature, is 48.9°F (9.4°C), while the average low-temperature is 28.9°F (-1.7°C). Throughout March, 3.4" (86.1mm) of precipitation is accumulated.
Weather in March »
In Bethlehem, the average high-temperature is 61°F (16.1°C), and the average low-temperature is 39°F (3.9°C). Throughout April, in Bethlehem, 3.6" (90.4mm) of precipitation is accumulated.
Weather in April »
The average high-temperature, in Bethlehem, Pennsylvania, is 72°F (22.2°C), while the average low-temperature is 48°F (8.9°C). Throughout May, 4.1" (105.2mm) of precipitation is accumulated.
Weather in May »
In June, the average high-temperature is 80.1°F (26.7°C), and the average low-temperature is 57.9°F (14.4°C). During June, Bethlehem regularly aggregates up to 4.3" (109.5mm) of precipitation.
Weather in June »
July is the warmest month, with an average high-temperature of 84°F (28.9°C) and an average low-temperature of 63°F (17.2°C). The month with the most rainfall is July when 4.9" (125.7mm) of precipitation is typically aggregated.
Weather in July »
In Bethlehem, Pennsylvania, in August, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 61°F (16.1°C). Throughout August, 3.7" (93.7mm) of precipitation is accumulated.
Weather in August »
In Bethlehem, the average high-temperature is 75°F (23.9°C), and the average low-temperature is 53.1°F (11.7°C). During September, Bethlehem regularly aggregates up to 4.6" (117.3mm) of precipitation.
Weather in September »
In October, the average high-temperature is 64°F (17.8°C), and the average low-temperature is 41°F (5°C). In Bethlehem, 3.9" (98.6mm) of precipitation is typically accumulated.
Weather in October »
The average high-temperature, in Bethlehem, is 53.1°F (11.7°C), while the average low-temperature is 33.1°F (0.6°C). During November, Bethlehem regularly aggregates up to 3.5" (88.9mm) of precipitation.
Weather in November »
In Bethlehem, in December, the average high-temperature is 41°F (5°C), and the average low-temperature is 24.1°F (-4.4°C). In Bethlehem, 3.6" (90.9mm) of precipitation is typically accumulated.
Weather in December »

What is the coldest month in Bethlehem?

January is the coldest month, with an average high-temperature of 36°F (2.2°C) and an average low-temperature of 19°F (-7.2°C).

How much does it rain in Bethlehem?

During the entire year, Bethlehem aggregates up to 45.4" (1154.4mm) of precipitation.

What is the driest month in Bethlehem?

The month with the least rainfall in Bethlehem is February when 2.8" (71.1mm) of precipitation is typically aggregated.

When are the longest days in Bethlehem?

The month with the longest days is June, with an average of 15h of daylight.

What is the warmest month in Bethlehem?

July is the warmest month in Bethlehem, with an average high-temperature of 84°F (28.9°C) and an average low-temperature of 63°F (17.2°C).

What is the wettest month in Bethlehem?

The month with the most rainfall in Bethlehem is July when 4.9" (125.7mm) of precipitation is typically aggregated.

What is the month with the shortest days in Bethlehem?

The month with the shortest days is December, with an average of 9.3h of daylight.
Average rainfall - Bethlehem, PA
Average daylight - Bethlehem, PA
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