Climate and monthly weather forecastEmmaus, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Emmaus, Pennsylvania, with an average temperature ranging between min 21.6°F (-5.8°C) and max 34°F (1.1°C). January is the coldest month of the year, registering average temperatures as high as 34°F (1.1°C) and as low as 21.6°F (-5.8°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Emmaus, Pennsylvania, with an average temperature fluctuating between 23.4°F (-4.8°C) and 37.8°F (3.2°C). Emmaus's entry into February measures an average high-temperature of a still wintry 37.8°F (3.2°C), closely parallel to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Emmaus, is a chilly month, with an average temperature fluctuating between 45.9°F (7.7°C) and 30°F (-1.1°C). Emmaus in March observes a minor temperature shift, with average high-temperatures adjusting from an icy 37.8°F (3.2°C) in February to a frosty 45.9°F (7.7°C). Weather in March »Weather in April
April in Emmaus, Pennsylvania, is a moderate spring month, with an average temperature fluctuating between 40.5°F (4.7°C) and 58.3°F (14.6°C). April's onset is marked by a temperature increase, moving from a chilly 45.9°F (7.7°C) in March to a mild 58.3°F (14.6°C). Weather in April »Weather in May
May, the last month of the spring in Emmaus, is an agreeable month, with an average temperature varying between 69.4°F (20.8°C) and 50.5°F (10.3°C). May marks a rise in the average high-temperature, moving from April's refreshing 58.3°F (14.6°C) to an agreeable 69.4°F (20.8°C). Weather in May »Weather in June
June, the first month of the summer in Emmaus, is a moderately hot month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 58.1°F (14.5°C). The start of June signals a slight increase in the average high-temperature, moving from an agreeable 69.4°F (20.8°C) in May to a warm 77.5°F (25.3°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Emmaus, Pennsylvania, with an average temperature varying between 83.8°F (28.8°C) and 63.5°F (17.5°C). July, characterized by an average high temperature of 83.8°F (28.8°C) and a low temperature of 63.5°F (17.5°C), is generally the warmest month. In July, the average heat index is appraised at a hot 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Emmaus, is another warm month, with an average temperature ranging between max 81°F (27.2°C) and min 61.7°F (16.5°C). The shift into August finds Emmaus at an average high-temperature of a still warm 81°F (27.2°C), closely comparable to July's conditions. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Emmaus, Pennsylvania, with temperature in the range of an average high of 74.3°F (23.5°C) and an average low of 55°F (12.8°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a moderately hot 81°F (27.2°C) in August to a still warm 74.3°F (23.5°C). Weather in September »Weather in October
October, like September, in Emmaus, Pennsylvania, is another refreshing autumn month, with an average temperature fluctuating between 46.2°F (7.9°C) and 62.1°F (16.7°C). As September shifts into October, a slight alteration in temperatures is observed, with average highs reducing from a warm 74.3°F (23.5°C) to a refreshing 62.1°F (16.7°C). Weather in October »Weather in November
November, the last month of the autumn in Emmaus, is also a frosty month, with an average temperature ranging between max 49.8°F (9.9°C) and min 35.4°F (1.9°C). The shift from October to November corresponds with a decrease in the average high-temperature, down to a frosty 49.8°F (9.9°C) from a comfortable 62.1°F (16.7°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Emmaus, Pennsylvania, with an average temperature ranging between max 40.1°F (4.5°C) and min 28.9°F (-1.7°C). The transition into December indicates a reduction in the average high-temperature, down to an icy 40.1°F (4.5°C) from November's frosty 49.8°F (9.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Emmaus, PA
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34°F).
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Emmaus, PA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"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
Emmaus, PA
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
7.9mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Emmaus, PA
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall
Emmaus, PA
- Average rainfall in January:
1.81" - Average rainfall in February:
1.73" - Average rainfall in March:
2.17" - Average rainfall in April:
2.44" - Average rainfall in May:
2.76" - Average rainfall in June:
2.32"
- Average rainfall in July:
3.03" - Average rainfall in August:
2.68" - Average rainfall in September:
1.61" - Average rainfall in October:
2.2" - Average rainfall in November:
2.17" - Average rainfall in December:
2.32"
The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days
Emmaus, PA
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
7.9 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15.6 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
11.9 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
9.2 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.7 days).
Average snowfall
Emmaus, PA
- Average snowfall in January:
3.15" - Average snowfall in February:
3.11" - Average snowfall in March:
4.37" - Average snowfall in April:
0.2" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Emmaus, PA
- Average snowfall days in January:
5 days - Average snowfall days in February:
6.6 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 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:
0.1 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Emmaus, PA
- Average daylight in January:
9h and 42min - 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 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - 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 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
4h and 24min - Average sunshine in March:
6h and 12min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 12min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days
Emmaus, PA
- Average sunshine days in January:
20.5 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
14 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
17 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
Emmaus, PA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Emmaus, PA
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility
Emmaus, PA
The months with the highest visibility are April, July and November (6mi).
The months with the lowest visibility are January, February, March, May, June, August, September, October and December (5mi).





