Allentown weather by month

Check out Allentown weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & daylight
UV levels & humidity

Temperature in Allentown (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	2	3	10	16	22	27	29	28	24	18	11	4
Min temperature (night-time)	-7	-6	-1	4	9	15	17	16	12	6	1	-4
Heat & Humidity	0	0	0	0	0	L	M	M	0	0	0	0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Allentown

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	5	6	6	7	8	9	9	8	7	6	4	4
Daily hours of daylight	10	11	12	13	14	15	15	14	12	11	10	9
UV Index (Maximum)	2	3	4	6	7	9	9	8	6	4	2	1

Rainfall in Allentown

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	11	10	11	11	12	11	10	10	9	8	11	11
Average monthly rainfall (mm)	83	75	89	93	108	96	109	110	101	78	100	91

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Allentown by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Pennsylvania (Allentown) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Allentown?

Allentown has a cold climate with hot summers and some rainfall in all months.

Allentown weather in January

Expect daytime maximum temperatures of 2°C in Allentown, Pennsylvania in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 83 mm of rainfall in the month, which might fall as snow.

2
2°C max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
-7
-7°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
83
83 mm of monthly rainfall
2
2 (Low) UV index

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Allentown weather in February

Expect daytime maximum temperatures of 3°C in Allentown, Pennsylvania in February based on long-term weather averages. There are 6 hours of sunshine per day on average with 10 days with some rainfall and typically 75 mm of rainfall in the month, which might fall as snow.

3
3°C max day temperature
6
6 hours of sunshine per day
10
10 days with some rainfall
-6
-6°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
75
75 mm of monthly rainfall
3
3 (Moderate) UV index

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Allentown weather in March

Expect daytime maximum temperatures of 10°C in Allentown, Pennsylvania in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 11 days with some rainfall and typically 89 mm of rainfall in the month.

10
10°C max day temperature
6
6 hours of sunshine per day
11
11 days with some rainfall
-1
-1°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
89
89 mm of monthly rainfall
4
4 (Moderate) UV index

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Allentown weather in April

Expect daytime maximum temperatures of 16°C in Allentown, Pennsylvania in April based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 93 mm of rainfall in the month.

16
16°C max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
4
4°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
93
93 mm of monthly rainfall
6
6 (High) UV index

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Allentown weather in May

Expect daytime maximum temperatures of 22°C in Allentown, Pennsylvania in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 108 mm of rainfall in the month.

22
22°C max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
9
9°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
108
108 mm of monthly rainfall
7
7 (High) UV index

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Allentown weather in June

Expect daytime maximum temperatures of 27°C in Allentown, Pennsylvania in June based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 96 mm of rainfall in the month.

27
27°C max day temperature
9
9 hours of sunshine per day
11
11 days with some rainfall
15
15°C min night temperature
15
15 hours of daylight per day
L
Low heat & humidity
96
96 mm of monthly rainfall
9
9 (Very High) UV index

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Allentown weather in July

Expect daytime maximum temperatures of 29°C in Allentown, Pennsylvania in July based on long-term weather averages. There are 9 hours of sunshine per day on average with 10 days with some rainfall and typically 109 mm of rainfall in the month.

29
29°C max day temperature
9
9 hours of sunshine per day
10
10 days with some rainfall
17
17°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
109
109 mm of monthly rainfall
9
9 (Very High) UV index

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Allentown weather in August

Expect daytime maximum temperatures of 28°C in Allentown, Pennsylvania in August based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 110 mm of rainfall in the month.

28
28°C max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
16
16°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
110
110 mm of monthly rainfall
8
8 (Very High) UV index

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Allentown weather in September

Expect daytime maximum temperatures of 24°C in Allentown, Pennsylvania in September based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 101 mm of rainfall in the month.

24
24°C max day temperature
7
7 hours of sunshine per day
9
9 days with some rainfall
12
12°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
101
101 mm of monthly rainfall
6
6 (High) UV index

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Allentown weather in October

Expect daytime maximum temperatures of 18°C in Allentown, Pennsylvania in October based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 78 mm of rainfall in the month.

18
18°C max day temperature
6
6 hours of sunshine per day
8
8 days with some rainfall
6
6°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
78
78 mm of monthly rainfall
4
4 (Moderate) UV index

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Allentown weather in November

Expect daytime maximum temperatures of 11°C in Allentown, Pennsylvania in November based on long-term weather averages. There are 4 hours of sunshine per day on average with 11 days with some rainfall and typically 100 mm of rainfall in the month.

11
11°C max day temperature
4
4 hours of sunshine per day
11
11 days with some rainfall
1
1°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
100
100 mm of monthly rainfall
2
2 (Low) UV index

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Allentown weather in December

Expect daytime maximum temperatures of 4°C in Allentown, Pennsylvania in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 11 days with some rainfall and typically 91 mm of rainfall in the month, which might fall as snow.

4
4°C max day temperature
4
4 hours of sunshine per day
11
11 days with some rainfall
-4
-4°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
91
91 mm of monthly rainfall
1
1 (Low) UV index

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