Climate and monthly weather forecastNew Bethlehem, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, in New Bethlehem, Pennsylvania, is another subzero cold winter month, with an average temperature varying between 17.8°F (-7.9°C) and 30.2°F (-1°C). The month of January sees the lowest average temperatures, reaching 30.2°F (-1°C) at the peak and 17.8°F (-7.9°C) at the low. Weather in January »Weather in February
The last month of the winter, February, is a cold month in New Bethlehem, Pennsylvania, with an average temperature varying between 34°F (1.1°C) and 19.6°F (-6.9°C). The advent of February brings an average high-temperature of an icy 34°F (1.1°C), exhibiting minor difference from the previous month. Weather in February »Weather in March
March, the first month of the spring in New Bethlehem, is a frosty month, with an average temperature ranging between min 27.9°F (-2.3°C) and max 44.2°F (6.8°C). The arrival of March signals an increase in the average high-temperature, moving from a wintry 34°F (1.1°C) in February to a chilly 44.2°F (6.8°C). Weather in March »Weather in April
April is a mild spring month in New Bethlehem, Pennsylvania, with an average temperature fluctuating between 37.9°F (3.3°C) and 56.5°F (13.6°C). With the transition into April, New Bethlehem experiences an increase in average high-temperatures, moving up from a chilly 44.2°F (6.8°C) in March to a refreshing 56.5°F (13.6°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in New Bethlehem, Pennsylvania, with an average temperature ranging between max 68.9°F (20.5°C) and min 47.8°F (8.8°C). The start of May brings a shift in the average high-temperature, increasing from April's mild 56.5°F (13.6°C) to a pleasant 68.9°F (20.5°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in New Bethlehem, Pennsylvania, with an average temperature fluctuating between 54.7°F (12.6°C) and 75.7°F (24.3°C). A subtle rise in the average high-temperature is observed during June, adjusting from an agreeable 68.9°F (20.5°C) in May to a warm 75.7°F (24.3°C). Weather in June »Weather in July
July, like June, in New Bethlehem, Pennsylvania, is a moderately hot summer month, with an average temperature ranging between min 59°F (15°C) and max 81°F (27.2°C). Temperature readings reach their annual highs in July, averaging 81°F (27.2°C) and a minimum average of 59°F (15°C). The average heat index in July is computed to be a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in New Bethlehem, Pennsylvania, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 57.2°F (14°C). Upon the beginning of August, New Bethlehem's high-temperatures register at a still warm 79°F (26.1°C), closely mirroring the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in New Bethlehem, Pennsylvania, with temperature in the range of an average low of 52.5°F (11.4°C) and an average high of 72.5°F (22.5°C). With the onset of September, New Bethlehem's average high-temperature slightly adjusts, moderately receding from August's warm 79°F (26.1°C) to a pleasant 72.5°F (22.5°C). Weather in September »Weather in October
October, the same as September, in New Bethlehem, Pennsylvania, is a moderate autumn month, with an average temperature ranging between min 43.3°F (6.3°C) and max 58.8°F (14.9°C). The start of October signals a decrease in the average high-temperature, transitioning from an agreeable 72.5°F (22.5°C) in September to a mild 58.8°F (14.9°C). Weather in October »Weather in November
November, the last month of the autumn in New Bethlehem, is also a frosty month, with an average temperature ranging between min 32.2°F (0.1°C) and max 45.9°F (7.7°C). The transition into November is accompanied by a temperature decrease, with the average high-temperature shifting from a refreshing 58.8°F (14.9°C) in October to a frosty 45.9°F (7.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in New Bethlehem, Pennsylvania, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 36.5°F (2.5°C). As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a frosty 45.9°F (7.7°C) to an icy 36.5°F (2.5°C). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
New Bethlehem, PA
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
New Bethlehem, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.09"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
New Bethlehem, PA
- Average wind speed in January:
8.3mph - Average wind speed in February:
8mph - Average wind speed in March:
7.8mph - Average wind speed in April:
7.9mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
New Bethlehem, PA
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is July (78%).
Average rainfall
New Bethlehem, PA
- Average rainfall in January:
2.13" - Average rainfall in February:
2.09" - Average rainfall in March:
2.05" - Average rainfall in April:
3.15" - Average rainfall in May:
2.8" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.36" - Average rainfall in August:
1.69" - Average rainfall in September:
1.97" - Average rainfall in October:
2.76" - Average rainfall in November:
1.85" - Average rainfall in December:
1.97"
The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is August (1.69").
Average rainfall days
New Bethlehem, PA
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
9.1 days - Average rainfall days in March:
12.5 days - Average rainfall days in April:
17.6 days - Average rainfall days in May:
19 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
13.9 days - Average rainfall days in October:
16 days - Average rainfall days in November:
12.2 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (7.5 days).
Average snowfall
New Bethlehem, PA
The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
New Bethlehem, PA
- Average snowfall days in January:
21.3 days - Average snowfall days in February:
16.9 days - Average snowfall days in March:
10.8 days - Average snowfall days in April:
4.3 days - Average snowfall days in May:
0.6 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
9.2 days - Average snowfall days in December:
16.9 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
New Bethlehem, PA
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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 January:
2h and 24min - Average sunshine in February:
2h and 42min - Average sunshine in March:
5h and 12min - Average sunshine in April:
7h and 6min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 6min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 12min - Average sunshine in October:
4h and 42min - Average sunshine in November:
4h and 24min - Average sunshine in December:
2h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days
New Bethlehem, PA
- Average sunshine days in January:
6 days - Average sunshine days in February:
5.7 days - Average sunshine days in March:
10.2 days - Average sunshine days in April:
8.8 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
12.5 days - Average sunshine days in September:
14 days - Average sunshine days in October:
12.7 days - Average sunshine days in November:
12 days - Average sunshine days in December:
6.6 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (5.7 days).
Average UV index
New Bethlehem, PA
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
New Bethlehem, PA
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility
New Bethlehem, PA
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).





