Pennsylvania climate guide

Temperature in Pennsylvania (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
3°C maximum daytime temperature in January in Pennsylvania (Philadelphia)3
5°C maximum daytime temperature in February in Pennsylvania (Philadelphia)5
11°C maximum daytime temperature in March in Pennsylvania (Philadelphia)11
17°C maximum daytime temperature in April in Pennsylvania (Philadelphia)17
23°C maximum daytime temperature in May in Pennsylvania (Philadelphia)23
28°C maximum daytime temperature in June in Pennsylvania (Philadelphia)28
30°C maximum daytime temperature in July in Pennsylvania (Philadelphia)30
29°C maximum daytime temperature in August in Pennsylvania (Philadelphia)29
25°C maximum daytime temperature in September in Pennsylvania (Philadelphia)25
19°C maximum daytime temperature in October in Pennsylvania (Philadelphia)19
13°C maximum daytime temperature in November in Pennsylvania (Philadelphia)13
6°C maximum daytime temperature in December in Pennsylvania (Philadelphia)6
Min temperature (night-time)
-5°C minimum night-time temperature in January in Pennsylvania (Philadelphia)-5
-4°C minimum night-time temperature in February in Pennsylvania (Philadelphia)-4
1°C minimum night-time temperature in March in Pennsylvania (Philadelphia)1
5°C minimum night-time temperature in April in Pennsylvania (Philadelphia)5
11°C minimum night-time temperature in May in Pennsylvania (Philadelphia)11
16°C minimum night-time temperature in June in Pennsylvania (Philadelphia)16
19°C minimum night-time temperature in July in Pennsylvania (Philadelphia)19
19°C minimum night-time temperature in August in Pennsylvania (Philadelphia)19
14°C minimum night-time temperature in September in Pennsylvania (Philadelphia)14
8°C minimum night-time temperature in October in Pennsylvania (Philadelphia)8
3°C minimum night-time temperature in November in Pennsylvania (Philadelphia)3
-2°C minimum night-time temperature in December in Pennsylvania (Philadelphia)-2

Sunshine & Daylight in Pennsylvania

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
5 hours of sunshine per day (52% of daylight hours) in January in Pennsylvania5
6 hours of sunshine per day (52% of daylight hours) in February in Pennsylvania6
7 hours of sunshine per day (54% of daylight hours) in March in Pennsylvania7
7 hours of sunshine per day (55% of daylight hours) in April in Pennsylvania7
8 hours of sunshine per day (55% of daylight hours) in May in Pennsylvania8
9 hours of sunshine per day (60% of daylight hours) in June in Pennsylvania9
9 hours of sunshine per day (61% of daylight hours) in July in Pennsylvania9
8 hours of sunshine per day (61% of daylight hours) in August in Pennsylvania8
7 hours of sunshine per day (58% of daylight hours) in September in Pennsylvania7
6 hours of sunshine per day (58% of daylight hours) in October in Pennsylvania6
5 hours of sunshine per day (49% of daylight hours) in November in Pennsylvania5
4 hours of sunshine per day (47% of daylight hours) in December in Pennsylvania4
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

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 (mm)
84 mm monthly rainfall in January in Pennsylvania (Philadelphia)84
73 mm monthly rainfall in February in Pennsylvania (Philadelphia)73
92 mm monthly rainfall in March in Pennsylvania (Philadelphia)92
95 mm monthly rainfall in April in Pennsylvania (Philadelphia)95
100 mm monthly rainfall in May in Pennsylvania (Philadelphia)100
96 mm monthly rainfall in June in Pennsylvania (Philadelphia)96
111 mm monthly rainfall in July in Pennsylvania (Philadelphia)111
102 mm monthly rainfall in August in Pennsylvania (Philadelphia)102
91 mm monthly rainfall in September in Pennsylvania (Philadelphia)91
73 mm monthly rainfall in October in Pennsylvania (Philadelphia)73
89 mm monthly rainfall in November in Pennsylvania (Philadelphia)89
90 mm monthly rainfall in December in Pennsylvania (Philadelphia)90

More climate for Pennsylvania

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

Going to Pennsylvania? Find the best month to visit Pennsylvania based on the weather.

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

Check climate guides for Pennsylvania showing average temperature, rainfall & sunshine figures for each month of the year. The climate guide shown above is for Philadelphia.

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More about Pennsylvania

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

The climate guide for Pennsylvania, represented by 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.

Metric (°C / mm)  |  Imperial (°F / inches)

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