Climate and monthly weather forecastPetrolia, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Petrolia, Pennsylvania, is another subzero cold winter month, with temperature in the range of an average high of 31.3°F (-0.4°C) and an average low of 18.5°F (-7.5°C). Petrolia notes the coldest temperatures in January, with a high average of 31.3°F (-0.4°C) and a low of 18.5°F (-7.5°C). Weather in January »Weather in February
The last month of the winter, February, is a wintry month in Petrolia, Pennsylvania, with an average temperature varying between 35.2°F (1.8°C) and 20.5°F (-6.4°C). Petrolia registers an average high-temperature of a wintry 35.2°F (1.8°C) at the commencement of February, closely related to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Petrolia, is a chilly month, with an average temperature varying between 45.1°F (7.3°C) and 28.8°F (-1.8°C). Petrolia sees an increase in the average high-temperature with the arrival of March, moving from February's icy 35.2°F (1.8°C) to a frosty 45.1°F (7.3°C). Weather in March »Weather in April
April in Petrolia, Pennsylvania, is a mild spring month, with an average temperature ranging between max 58.1°F (14.5°C) and min 38.8°F (3.8°C). April brings a temperature increase, with average high-temperatures moving from March's chilly 45.1°F (7.3°C) to a mild 58.1°F (14.5°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Petrolia, Pennsylvania, with an average temperature ranging between min 49.3°F (9.6°C) and max 70.2°F (21.2°C). In May, the average high-temperature increases from a refreshing 58.1°F (14.5°C) in April to a pleasant 70.2°F (21.2°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Petrolia, Pennsylvania, with an average temperature fluctuating between 55.9°F (13.3°C) and 77°F (25°C). The shift from May to June introduces a subtle increase in the average high-temperature, moving from a pleasant 70.2°F (21.2°C) to a warm 77°F (25°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Petrolia, Pennsylvania, with an average temperature varying between 59.7°F (15.4°C) and 81.5°F (27.5°C). July registers as the month with the highest average temperatures, reaching 81.5°F (27.5°C) at its peak and 59.7°F (15.4°C) at the lowest. The heat index for July is appraised at a tropical 87.8°F (31°C). Weather in July »Weather in August
August, the last month of the summer in Petrolia, is also a moderately hot month, with an average temperature varying between 79.7°F (26.5°C) and 58.1°F (14.5°C). The arrival of August sees a recorded average high-temperature of a still moderately hot 79.7°F (26.5°C), showing little divergence from the previous month's conditions. Weather in August »Weather in September
September, the first month of the autumn in Petrolia, is also a moderately hot month, with an average temperature varying between 73.6°F (23.1°C) and 53.2°F (11.8°C). As August transitions into September, Petrolia sees a gentle drop in the average high-temperature, transitioning from a moderately hot 79.7°F (26.5°C) to a still warm 73.6°F (23.1°C). Weather in September »Weather in October
October, the same as September, in Petrolia, Pennsylvania, is another mild autumn month, with an average temperature fluctuating between 43.7°F (6.5°C) and 59.9°F (15.5°C). Petrolia's October weather comes with a decrease in average high-temperatures, moving from a warm 73.6°F (23.1°C) in September to a moderate 59.9°F (15.5°C). Weather in October »Weather in November
November, the last month of the autumn in Petrolia, is another chilly month, with an average temperature ranging between max 47.1°F (8.4°C) and min 32.7°F (0.4°C). As November arrives, Petrolia's weather displays a decrease in high-temperatures, transitioning from October's moderate 59.9°F (15.5°C) to a frosty 47.1°F (8.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Petrolia, Pennsylvania, with an average temperature ranging between max 37.2°F (2.9°C) and min 25.9°F (-3.4°C). December comes with a drop in the average high-temperature, falling from November's frosty 47.1°F (8.4°C) to a cold 37.2°F (2.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Petrolia, PA
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.3°F).
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure
Petrolia, PA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Petrolia, PA
- Average wind speed in January:
8.2mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.6mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.6mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity
Petrolia, PA
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, June, July and August (78%).
Average rainfall
Petrolia, PA
- Average rainfall in January:
0.98" - Average rainfall in February:
0.94" - Average rainfall in March:
1.06" - Average rainfall in April:
1.61" - Average rainfall in May:
1.54" - Average rainfall in June:
1.89"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.22" - Average rainfall in September:
1.14" - Average rainfall in October:
1.46" - Average rainfall in November:
0.87" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is November (0.87").
Average rainfall days
Petrolia, PA
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
15.4 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
14.5 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.9 days).
Average snowfall
Petrolia, PA
- Average snowfall in January:
1.93" - Average snowfall in February:
1.81" - Average snowfall in March:
0.91" - Average snowfall in April:
0.28" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Petrolia, PA
- Average snowfall days in January:
13.8 days - Average snowfall days in February:
10.2 days - Average snowfall days in March:
7.2 days - Average snowfall days in April:
2.3 days - Average snowfall days in May:
0.5 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:
4.6 days - Average snowfall days in December:
9.5 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Petrolia, PA
- Average daylight in January:
9h and 36min - 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 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - 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 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
2h and 18min - Average sunshine in February:
2h and 48min - Average sunshine in March:
5h and 0min - Average sunshine in April:
6h and 54min - Average sunshine in May:
8h and 12min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 0min - Average sunshine in October:
4h and 42min - Average sunshine in November:
4h and 18min - Average sunshine in December:
2h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days
Petrolia, PA
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
13.2 days
- Average sunshine days in July:
12.2 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
17 days - Average sunshine days in December:
17.1 days
The month with the most sunshine days is December (17.1 days).
The month with the least sunshine days is July (12.2 days).
Average UV index
Petrolia, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Petrolia, PA
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility
Petrolia, PA
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).





