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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Slippery Rock, Pennsylvania, with temperature in the range of an average low of 18.1°F (-7.7°C) and an average high of 31.3°F (-0.4°C). January, with its high-temperature average of 31.3°F (-0.4°C) and a low-temperature average of 18.1°F (-7.7°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Slippery Rock, Pennsylvania, with an average temperature ranging between min 20.3°F (-6.5°C) and max 35.1°F (1.7°C). Slippery Rock, Pennsylvania, registers an average high-temperature of a cold 35.1°F (1.7°C) with the arrival of February, showing minor deviation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Slippery Rock, is a chilly month, with an average temperature fluctuating between 45.1°F (7.3°C) and 28.6°F (-1.9°C). As February gives way to March, the average high-temperature displays an increase, moving from a wintry 35.1°F (1.7°C) to a frosty 45.1°F (7.3°C). Weather in March »
Weather in April
April is a refreshing spring month in Slippery Rock, Pennsylvania, with an average temperature fluctuating between 38.8°F (3.8°C) and 57.9°F (14.4°C). April signals a shift in the average high-temperature, moving from March's chilly 45.1°F (7.3°C) to a mild 57.9°F (14.4°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Slippery Rock, Pennsylvania, with an average temperature varying between 49.3°F (9.6°C) and 70.2°F (21.2°C). Slippery Rock's transition into May brings a rise in the average high-temperature, moving from a refreshing 57.9°F (14.4°C) in April to an agreeable 70.2°F (21.2°C). Weather in May »
Weather in June
June, the first month of the summer in Slippery Rock, is a warm month, with an average temperature fluctuating between 76.8°F (24.9°C) and 55.9°F (13.3°C). Slippery Rock in June denotes a subtle temperature transition, adjusting from an average high of an agreeable 70.2°F (21.2°C) in May to a moderately hot 76.8°F (24.9°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Slippery Rock, Pennsylvania, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 60.1°F (15.6°C). July is the warmest month, exhibiting average temperatures of 81.1°F (27.3°C) at the peak and 60.1°F (15.6°C) at the base. The heat index for July is evaluated at a hot 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Slippery Rock, is also a moderately hot month, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 58.3°F (14.6°C). August's advent notes a subtle adjustment in average high-temperature to a still moderately hot 79.7°F (26.5°C) from July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Slippery Rock, Pennsylvania, with an average temperature ranging between max 73.4°F (23°C) and min 53.6°F (12°C). The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 79.7°F (26.5°C) in August to a still moderately hot 73.4°F (23°C). Weather in September »
Weather in October
October, the same as September, in Slippery Rock, Pennsylvania, is a moderate autumn month, with temperature in the range of an average high of 60.1°F (15.6°C) and an average low of 43.7°F (6.5°C). Slippery Rock's October weather comes with a decrease in average high-temperatures, moving from a moderately hot 73.4°F (23°C) in September to a mild 60.1°F (15.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Slippery Rock, is also a frosty month, with an average temperature ranging between max 47.1°F (8.4°C) and min 32.7°F (0.4°C). Slippery Rock's average high-temperature decreases in November, falling from a mild 60.1°F (15.6°C) in October to a chilly 47.1°F (8.4°C). Weather in November »
Weather in December
December, the first month of the winter in Slippery Rock, is still a cold month, with an average temperature fluctuating between 26.2°F (-3.2°C) and 37.2°F (2.9°C). Onset of December witnesses a reduction in the average high-temperature, falling from a chilly 47.1°F (8.4°C) in November to an icy 37.2°F (2.9°C). Weather in December »
Updated: Jul 9, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January, known for its average high temperature of 31.3°F (-0.4°C) and an average low temperature of 18.1°F (-7.7°C), is the coldest month.
How many days does it rain?
Throughout the year, there are 177.8 rainfall days, and 36.65" (931mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 19.1 days and accumulates 8.54" (217mm) of snow.
How many days does it snow?
In Slippery Rock, Pennsylvania, during the entire year, snow falls for 75.3 days and aggregates up to 32.05" (814mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 2.3h of sunshine.
What is the most humid month?
February is the most humid month, with an average relative humidity of 88%.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Slippery Rock, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the least humid month?
April through August, with an average relative humidity of 79%, are the least humid months.
What is the rainiest month?
The month with the most rainfall in Slippery Rock is April, when the rain falls for 17.6 days and typically aggregates up to 3.74" (95mm) of precipitation.
What are the months with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 5.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What month is the hottest?
Slippery Rock notes the warmest temperatures in July, with a average high of 81.1°F (27.3°C) and a low of 60.1°F (15.6°C).
What are the months with the most sunshine?
The months with the most sunshine are July and August, with an average of 9.7h of sunshine.
What is the driest month?
November is the month with the least rainfall in Slippery Rock. Rain falls for 11.5 days and accumulates 2.36" (60mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
When is the lowest UV index?
December is the month with the lowest UV index in Slippery Rock, Pennsylvania, with an average maximum UV index of 1.
Average temperature
Slippery Rock, PA
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.3°F).
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure
Slippery Rock, 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:
29.99"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"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:
30.12"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Slippery Rock, PA
- Average wind speed in January:
8.3mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.6mph - Average wind speed in April:
7.7mph - 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:
5.7mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity
Slippery Rock, PA
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, May, June, July and August (79%).
Average rainfall
Slippery Rock, PA
- Average rainfall in January:
2.83" - Average rainfall in February:
2.72" - Average rainfall in March:
2.8" - Average rainfall in April:
3.74" - Average rainfall in May:
3.7" - Average rainfall in June:
3.66"
- Average rainfall in July:
3.5" - Average rainfall in August:
2.56" - Average rainfall in September:
2.68" - Average rainfall in October:
3.27" - Average rainfall in November:
2.36" - Average rainfall in December:
2.83"
The wettest month (with the highest rainfall) is April (3.74").
The driest month (with the least rainfall) is November (2.36").
Average rainfall days
Slippery Rock, PA
- Average rainfall days in January:
8.1 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
17.6 days - Average rainfall days in May:
19.8 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
19.3 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
15.8 days - Average rainfall days in October:
16.9 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (8.1 days).
Average snowfall
Slippery Rock, PA
- Average snowfall in January:
8.54" - Average snowfall in February:
8.03" - Average snowfall in March:
3.94" - Average snowfall in April:
1.18" - Average snowfall in May:
0.35" - Average snowfall in June:
0"
The month with the highest snowfall is January (8.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Slippery Rock, PA
- Average snowfall days in January:
19.1 days - Average snowfall days in February:
16.9 days - Average snowfall days in March:
10.6 days - Average snowfall days in April:
4.1 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:
0.7 days - Average snowfall days in November:
7.8 days - Average snowfall days in December:
15.6 days
The month with the highest number of snowfall days is January (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Slippery Rock, PA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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 2min - Average sunshine in February:
2h and 5min - Average sunshine in March:
4h and 5min - Average sunshine in April:
6h and 5min - Average sunshine in May:
8h and 2min - Average sunshine in June:
8h and 5min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 0min - Average sunshine in October:
4h and 4min - Average sunshine in November:
4h and 2min - Average sunshine in December:
2h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days
Slippery Rock, PA
- Average sunshine days in January:
7.3 days - Average sunshine days in February:
6.3 days - Average sunshine days in March:
10 days - Average sunshine days in April:
9.4 days - Average sunshine days in May:
9.3 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
10.5 days - Average sunshine days in August:
11.5 days - Average sunshine days in September:
12.5 days - Average sunshine days in October:
12.2 days - Average sunshine days in November:
13.1 days - Average sunshine days in December:
9.3 days
The month with the most sunshine days is November (13.1 days).
The month with the least sunshine days is February (6.3 days).
Average UV index
Slippery Rock, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Slippery Rock, PA
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility
Slippery Rock, PA
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Slippery Rock, Pennsylvania, USA
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