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What is the weather like in Allentown, PennsylvaniaAllentown, Pennsylvania monthly and yearly climate averages.

Allentown, Pennsylvania Climate Averages

Monthly and yearly weather averages for Allentown, PennsylvaniaWeather almanac for Allentown, PA. Allentown monthly weather averages.
Lat: 40.61N, Lon: 75.49W
Wx Zone: PAZ061Web Search

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Allentown Monthly Averages

12 Month Weather Scroll   °F Click to change Allentown weather to Imperial units.Click to change Allentown weather to Metric units. °C
January
February
March
April
May
June
July
August
September
October
November
December
Hi 34°F Lo 23°F Hi 37°F Lo 24°F Hi 47°F Lo 32°F Hi 59°F Lo 42°F Hi 70°F Lo 52°F Hi 79°F Lo 60°F Hi 85°F Lo 66°F Hi 83°F Lo 64°F Hi 76°F Lo 58°F Hi 63°F Lo 48°F Hi 50°F Lo 37°F Hi 41°F Lo 30°F
8 mph 8 mph 8 mph 8 mph 6 mph 6 mph 5 mph 5 mph 6 mph 7 mph 7 mph 8 mph
4.5 in 5.2 in 5.7 in 5.9 in 6.6 in 5.9 in 6 in 7.1 in 4.9 in 5.9 in 4.3 in 5.7 in
76% 81% 76% 74% 78% 77% 74% 76% 77% 79% 76% 79%
46% 50% 46% 47% 46% 36% 30% 31% 36% 41% 38% 48%
30.6 in 30.5 in 30.6 in 30.5 in 30.5 in 30.4 in 30.4 in 30.5 in 30.5 in 30.5 in 30.6 in 30.6 in
15 9 12 10 8 8 9 10 13 13 16 14
10 12 14 18 21 20 20 18 14 15 12 13
10 11 7 1 0 0 0 0 0 0 1 7
2 4 4 2 7 7 6 5 6 4 3 4
2 1 2 3 6 6 6 6 4 3 2 1
259 221 263 255 276 309 345 332 301 282 281 258
January
February
March
April
May
June
July
August
September
October
November
December
Hi 1°C Lo -5°C Hi 3°C Lo -4°C Hi 8°C Lo 0°C Hi 15°C Lo 6°C Hi 21°C Lo 11°C Hi 26°C Lo 16°C Hi 29°C Lo 19°C Hi 28°C Lo 18°C Hi 24°C Lo 15°C Hi 17°C Lo 9°C Hi 10°C Lo 3°C Hi 5°C Lo -1°C
13 km/h 12 km/h 13 km/h 13 km/h 10 km/h 9 km/h 8 km/h 8 km/h 9 km/h 11 km/h 12 km/h 12 km/h
115 mm 131 mm 144 mm 149 mm 167 mm 150 mm 151 mm 179 mm 125 mm 149 mm 110 mm 145 mm
76% 81% 76% 74% 78% 77% 74% 76% 77% 79% 76% 79%
46% 50% 46% 47% 46% 36% 30% 31% 36% 41% 38% 48%
1019 mb 1018 mb 1019 mb 1015 mb 1016 mb 1014 mb 1015 mb 1015 mb 1018 mb 1017 mb 1020 mb 1019 mb
15 9 12 10 8 8 9 10 13 13 16 14
10 12 14 18 21 20 20 18 14 15 12 13
10 11 7 1 0 0 0 0 0 0 1 7
2 4 4 2 7 7 6 5 6 4 3 4
2 1 2 3 6 6 6 6 4 3 2 1
259 221 263 255 276 309 345 332 301 282 281 258
Month
Avg. Temperatures
Avg. Wind Speed
Avg. Precipitation
Average Humidity
Avg. Cloud Cover
Barometric Pressure
Average Dry Days
Avg. Precip. Days
Average Snow Days
Average Fog Days
Average UV Index
Avg. Hours of Sun
Averages are based on historical weather data from the past 10 years.

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