Pennsylvania weather by month

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum daytime temperature °F
37°F maximum daytime temperature in January in Philadelphia37
41°F maximum daytime temperature in February in Philadelphia41
52°F maximum daytime temperature in March in Philadelphia52
63°F maximum daytime temperature in April in Philadelphia63
73°F maximum daytime temperature in May in Philadelphia73
82°F maximum daytime temperature in June in Philadelphia82
86°F maximum daytime temperature in July in Philadelphia86
84°F maximum daytime temperature in August in Philadelphia84
77°F maximum daytime temperature in September in Philadelphia77
66°F maximum daytime temperature in October in Philadelphia66
55°F maximum daytime temperature in November in Philadelphia55
43°F maximum daytime temperature in December in Philadelphia43
Hours of sunshine (daily)
Days with some rainfall
11 days with some rainfall in January in Philadelphia11
10 days with some rainfall in February in Philadelphia10
10 days with some rainfall in March in Philadelphia10
11 days with some rainfall in April in Philadelphia11
11 days with some rainfall in May in Philadelphia11
10 days with some rainfall in June in Philadelphia10
9 days with some rainfall in July in Philadelphia9
9 days with some rainfall in August in Philadelphia9
8 days with some rainfall in September in Philadelphia8
8 days with some rainfall in October in Philadelphia8
10 days with some rainfall in November in Philadelphia10
11 days with some rainfall in December in Philadelphia11

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More about Pennsylvania

Pennsylvania by month

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

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The climate guide for Pennsylvania (Philadelphia) 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.

Pennsylvania temperature by month

Compare the average temperature by month for popular destinations in Pennsylvania. Select a place from below to see more long term weather averages by month.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Erie
32°F maximum daytime temperature in January in Erie32
34°F maximum daytime temperature in February in Erie34
43°F maximum daytime temperature in March in Erie43
54°F maximum daytime temperature in April in Erie54
66°F maximum daytime temperature in May in Erie66
75°F maximum daytime temperature in June in Erie75
79°F maximum daytime temperature in July in Erie79
79°F maximum daytime temperature in August in Erie79
72°F maximum daytime temperature in September in Erie72
61°F maximum daytime temperature in October in Erie61
48°F maximum daytime temperature in November in Erie48
37°F maximum daytime temperature in December in Erie37
Gettysburg
37°F maximum daytime temperature in January in Gettysburg37
41°F maximum daytime temperature in February in Gettysburg41
52°F maximum daytime temperature in March in Gettysburg52
63°F maximum daytime temperature in April in Gettysburg63
73°F maximum daytime temperature in May in Gettysburg73
81°F maximum daytime temperature in June in Gettysburg81
86°F maximum daytime temperature in July in Gettysburg86
84°F maximum daytime temperature in August in Gettysburg84
77°F maximum daytime temperature in September in Gettysburg77
64°F maximum daytime temperature in October in Gettysburg64
54°F maximum daytime temperature in November in Gettysburg54
43°F maximum daytime temperature in December in Gettysburg43
Harrisburg
36°F maximum daytime temperature in January in Harrisburg36
39°F maximum daytime temperature in February in Harrisburg39
50°F maximum daytime temperature in March in Harrisburg50
63°F maximum daytime temperature in April in Harrisburg63
72°F maximum daytime temperature in May in Harrisburg72
81°F maximum daytime temperature in June in Harrisburg81
86°F maximum daytime temperature in July in Harrisburg86
84°F maximum daytime temperature in August in Harrisburg84
75°F maximum daytime temperature in September in Harrisburg75
64°F maximum daytime temperature in October in Harrisburg64
52°F maximum daytime temperature in November in Harrisburg52
41°F maximum daytime temperature in December in Harrisburg41
Lancaster
37°F maximum daytime temperature in January in Lancaster37
41°F maximum daytime temperature in February in Lancaster41
52°F maximum daytime temperature in March in Lancaster52
63°F maximum daytime temperature in April in Lancaster63
73°F maximum daytime temperature in May in Lancaster73
82°F maximum daytime temperature in June in Lancaster82
86°F maximum daytime temperature in July in Lancaster86
84°F maximum daytime temperature in August in Lancaster84
77°F maximum daytime temperature in September in Lancaster77
66°F maximum daytime temperature in October in Lancaster66
54°F maximum daytime temperature in November in Lancaster54
41°F maximum daytime temperature in December in Lancaster41
Philadelphia
37°F maximum daytime temperature in January in Philadelphia37
41°F maximum daytime temperature in February in Philadelphia41
52°F maximum daytime temperature in March in Philadelphia52
63°F maximum daytime temperature in April in Philadelphia63
73°F maximum daytime temperature in May in Philadelphia73
82°F maximum daytime temperature in June in Philadelphia82
86°F maximum daytime temperature in July in Philadelphia86
84°F maximum daytime temperature in August in Philadelphia84
77°F maximum daytime temperature in September in Philadelphia77
66°F maximum daytime temperature in October in Philadelphia66
55°F maximum daytime temperature in November in Philadelphia55
43°F maximum daytime temperature in December in Philadelphia43
Pittsburgh
36°F maximum daytime temperature in January in Pittsburgh36
39°F maximum daytime temperature in February in Pittsburgh39
50°F maximum daytime temperature in March in Pittsburgh50
61°F maximum daytime temperature in April in Pittsburgh61
72°F maximum daytime temperature in May in Pittsburgh72
81°F maximum daytime temperature in June in Pittsburgh81
84°F maximum daytime temperature in July in Pittsburgh84
82°F maximum daytime temperature in August in Pittsburgh82
75°F maximum daytime temperature in September in Pittsburgh75
64°F maximum daytime temperature in October in Pittsburgh64
52°F maximum daytime temperature in November in Pittsburgh52
39°F maximum daytime temperature in December in Pittsburgh39

All Pennsylvania destinations

Pennsylvania weather averages by month

Temperature in Pennsylvania (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
37°F maximum daytime temperature in January in Pennsylvania (Philadelphia)37
41°F maximum daytime temperature in February in Pennsylvania (Philadelphia)41
52°F maximum daytime temperature in March in Pennsylvania (Philadelphia)52
63°F maximum daytime temperature in April in Pennsylvania (Philadelphia)63
73°F maximum daytime temperature in May in Pennsylvania (Philadelphia)73
82°F maximum daytime temperature in June in Pennsylvania (Philadelphia)82
86°F maximum daytime temperature in July in Pennsylvania (Philadelphia)86
84°F maximum daytime temperature in August in Pennsylvania (Philadelphia)84
77°F maximum daytime temperature in September in Pennsylvania (Philadelphia)77
66°F maximum daytime temperature in October in Pennsylvania (Philadelphia)66
55°F maximum daytime temperature in November in Pennsylvania (Philadelphia)55
43°F maximum daytime temperature in December in Pennsylvania (Philadelphia)43
Min temperature (night-time)
23°F minimum night-time temperature in January in Pennsylvania (Philadelphia)23
25°F minimum night-time temperature in February in Pennsylvania (Philadelphia)25
34°F minimum night-time temperature in March in Pennsylvania (Philadelphia)34
41°F minimum night-time temperature in April in Pennsylvania (Philadelphia)41
52°F minimum night-time temperature in May in Pennsylvania (Philadelphia)52
61°F minimum night-time temperature in June in Pennsylvania (Philadelphia)61
66°F minimum night-time temperature in July in Pennsylvania (Philadelphia)66
66°F minimum night-time temperature in August in Pennsylvania (Philadelphia)66
57°F minimum night-time temperature in September in Pennsylvania (Philadelphia)57
46°F minimum night-time temperature in October in Pennsylvania (Philadelphia)46
37°F minimum night-time temperature in November in Pennsylvania (Philadelphia)37
28°F minimum night-time temperature in December in Pennsylvania (Philadelphia)28
Heat & Humidity
No heat & humidity in January in Pennsylvania (Philadelphia)0
No heat & humidity in February in Pennsylvania (Philadelphia)0
No heat & humidity in March in Pennsylvania (Philadelphia)0
No heat & humidity in April in Pennsylvania (Philadelphia)0
No heat & humidity in May in Pennsylvania (Philadelphia)0
Low heat & humidity in June in Pennsylvania (Philadelphia)L
High heat & humidity in July in Pennsylvania (Philadelphia)H
Moderate heat & humidity in August in Pennsylvania (Philadelphia)M
No heat & humidity in September in Pennsylvania (Philadelphia)0
No heat & humidity in October in Pennsylvania (Philadelphia)0
No heat & humidity in November in Pennsylvania (Philadelphia)0
No heat & humidity in December in Pennsylvania (Philadelphia)0

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

Sunshine & UV index in Pennsylvania

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Pennsylvania (Philadelphia)10
11 hours of daylight per day in February in Pennsylvania (Philadelphia)11
12 hours of daylight per day in March in Pennsylvania (Philadelphia)12
13 hours of daylight per day in April in Pennsylvania (Philadelphia)13
14 hours of daylight per day in May in Pennsylvania (Philadelphia)14
15 hours of daylight per day in June in Pennsylvania (Philadelphia)15
15 hours of daylight per day in July in Pennsylvania (Philadelphia)15
14 hours of daylight per day in August in Pennsylvania (Philadelphia)14
12 hours of daylight per day in September in Pennsylvania (Philadelphia)12
11 hours of daylight per day in October in Pennsylvania (Philadelphia)11
10 hours of daylight per day in November in Pennsylvania (Philadelphia)10
9 hours of daylight per day in December in Pennsylvania (Philadelphia)9
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Pennsylvania (Philadelphia)2
UV (maximum) index 3 (Moderate) in February in Pennsylvania (Philadelphia)3
UV (maximum) index 4 (Moderate) in March in Pennsylvania (Philadelphia)4
UV (maximum) index 6 (High) in April in Pennsylvania (Philadelphia)6
UV (maximum) index 8 (Very High) in May in Pennsylvania (Philadelphia)8
UV (maximum) index 9 (Very High) in June in Pennsylvania (Philadelphia)9
UV (maximum) index 9 (Very High) in July in Pennsylvania (Philadelphia)9
UV (maximum) index 8 (Very High) in August in Pennsylvania (Philadelphia)8
UV (maximum) index 6 (High) in September in Pennsylvania (Philadelphia)6
UV (maximum) index 4 (Moderate) in October in Pennsylvania (Philadelphia)4
UV (maximum) index 2 (Low) in November in Pennsylvania (Philadelphia)2
UV (maximum) index 2 (Low) in December in Pennsylvania (Philadelphia)2

Rainfall in Pennsylvania

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
11 days with some rainfall in January in Pennsylvania (Philadelphia)11
10 days with some rainfall in February in Pennsylvania (Philadelphia)10
10 days with some rainfall in March in Pennsylvania (Philadelphia)10
11 days with some rainfall in April in Pennsylvania (Philadelphia)11
11 days with some rainfall in May in Pennsylvania (Philadelphia)11
10 days with some rainfall in June in Pennsylvania (Philadelphia)10
9 days with some rainfall in July in Pennsylvania (Philadelphia)9
9 days with some rainfall in August in Pennsylvania (Philadelphia)9
8 days with some rainfall in September in Pennsylvania (Philadelphia)8
8 days with some rainfall in October in Pennsylvania (Philadelphia)8
10 days with some rainfall in November in Pennsylvania (Philadelphia)10
11 days with some rainfall in December in Pennsylvania (Philadelphia)11
Average monthly rainfall (inches)
3.3 inches monthly rainfall in January in Pennsylvania (Philadelphia)3.3
2.9 inches monthly rainfall in February in Pennsylvania (Philadelphia)2.9
3.6 inches monthly rainfall in March in Pennsylvania (Philadelphia)3.6
3.7 inches monthly rainfall in April in Pennsylvania (Philadelphia)3.7
3.9 inches monthly rainfall in May in Pennsylvania (Philadelphia)3.9
3.8 inches monthly rainfall in June in Pennsylvania (Philadelphia)3.8
4.4 inches monthly rainfall in July in Pennsylvania (Philadelphia)4.4
4.0 inches monthly rainfall in August in Pennsylvania (Philadelphia)4.0
3.6 inches monthly rainfall in September in Pennsylvania (Philadelphia)3.6
2.9 inches monthly rainfall in October in Pennsylvania (Philadelphia)2.9
3.5 inches monthly rainfall in November in Pennsylvania (Philadelphia)3.5
3.5 inches monthly rainfall in December in Pennsylvania (Philadelphia)3.5

Tropical storm risk: Pennsylvania hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
1.3%
1.9%
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Compare Pennsylvania weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Pennsylvania, USA (Philadelphia) and the UK (London).

Maximum daytime temperature (°F)

Pennsylvania, USA (Philadelphia)
UK (London)
37
45
41
45
52
50
63
55
73
63
82
68
86
72
84
72
77
66
66
59
55
50
43
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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