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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, the same as December, is a wintry winter month in Yerkes, Pennsylvania, with an average temperature varying between 23.9°F (-4.5°C) and 36°F (2.2°C). The coldest time of the year is January, with temperatures averaging a high of 36°F (2.2°C) and a low of 23.9°F (-4.5°C). Weather in January »
Weather in February
February, the last month of the winter in Yerkes, is another cold month, with an average temperature ranging between min 26.1°F (-3.3°C) and max 39.6°F (4.2°C). As Yerkes steps into February, the average high-temperature is measured at a still icy 39.6°F (4.2°C), displaying minor differences from January's 36°F (2.2°C). Weather in February »
Weather in March
March, the first month of the spring in Yerkes, is a frosty month, with an average temperature fluctuating between 48.4°F (9.1°C) and 32.9°F (0.5°C). As Yerkes welcomes March, the average high-temperature displays a subtle shift, adjusting from a cold 39.6°F (4.2°C) in February to a frosty 48.4°F (9.1°C). Weather in March »
Weather in April
April in Yerkes, Pennsylvania, is a mild spring month, with an average temperature fluctuating between 43.2°F (6.2°C) and 60.6°F (15.9°C). With the onset of April, Yerkes's weather sees a temperature rise, transitioning from a chilly 48.4°F (9.1°C) in March to a refreshing 60.6°F (15.9°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Yerkes, Pennsylvania, with an average temperature varying between 71.2°F (21.8°C) and 53.1°F (11.7°C). May's arrival signals an increase in average high-temperatures, moving from April's refreshing 60.6°F (15.9°C) to an agreeable 71.2°F (21.8°C). Weather in May »
Weather in June
June, the first month of the summer in Yerkes, is a moderately hot month, with an average temperature ranging between min 61°F (16.1°C) and max 79.2°F (26.2°C). As June arrives, Yerkes's weather shows a minor increase in high-temperatures, edging from May's pleasant 71.2°F (21.8°C) to a moderately hot 79.2°F (26.2°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Yerkes, Pennsylvania, with an average temperature varying between 66.7°F (19.3°C) and 85.1°F (29.5°C). July stands out as Yerkes's warmest month, with an average high-temperature of 85.1°F (29.5°C) and a low-temperature of 66.7°F (19.3°C). July's average heat index is computed to be a very hot 95°F (35°C). Weather in July »
Weather in August
August, the last month of the summer in Yerkes, is also a moderately hot month, with an average temperature fluctuating between 65.5°F (18.6°C) and 82.8°F (28.2°C). Transitioning into August, Yerkes experiences an average high-temperature of a still warm 82.8°F (28.2°C), marking a minor shift from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Yerkes, Pennsylvania, with an average temperature varying between 58.6°F (14.8°C) and 75.7°F (24.3°C). The beginning of September brings a slight decrease in the average high-temperature, transitioning from a moderately hot 82.8°F (28.2°C) in August to a still warm 75.7°F (24.3°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Yerkes, Pennsylvania, with an average temperature fluctuating between 48.4°F (9.1°C) and 63.5°F (17.5°C). October indicates a shift in the average high-temperature, from September's warm 75.7°F (24.3°C) to an enjoyable 63.5°F (17.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Yerkes, Pennsylvania, with an average temperature ranging between min 37.6°F (3.1°C) and max 51.1°F (10.6°C). In Yerkes, the beginning of November is marked by a lowered average high-temperature, shifting from October's comfortable 63.5°F (17.5°C) to a fresh 51.1°F (10.6°C). Weather in November »
Weather in December
December, the first month of the winter in Yerkes, is also a wintry month, with an average temperature fluctuating between 30.9°F (-0.6°C) and 42.3°F (5.7°C). December signals a slight drop in average high-temperature, sliding from November's fresh 51.1°F (10.6°C) to an icy 42.3°F (5.7°C). Weather in December »
Updated: Jun 26, 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 month is the coldest?
With an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.9°F (-4.5°C), January is the coldest month.
How many days does it rain?
Throughout the year, there are 132.3 rainfall days, and 13.98" (355mm) of precipitation is accumulated.
When does it snow?
January through March, November and December are months with snowfall in Yerkes.
What is the snowiest month?
The months with the most snowfall are January and February, with an average 0.59" (15mm) of accumulated snow.
How much does it snow?
In Yerkes, during the entire year, snow falls for 15.1 days and aggregates up to 2.2" (56mm) of snow.
When is the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month?
The most humid month is February, with an average relative humidity of 80%.
What is the driest month in Yerkes?
The month with the least rainfall in Yerkes is February, when the rain falls for 7.5 days and typically collects 0.75" (19mm) of precipitation.
What is the month with the least sunshine?
With an average of 4.6h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Yerkes, 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 and July, with an average relative humidity of 74%, are the least humid months.
When it does not snow?
In Yerkes, snow does not fall in April through October.
When is the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days?
June has the longest days of the year, with an average of 15h and 0min of daylight.
What month is the hottest?
July is the warmest month, with the temperature often reaching an average high of 85.1°F (29.5°C) and an average low of 66.7°F (19.3°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.5h of sunshine.
What is the wettest month?
August is the month with the most rainfall. Rain falls for 13.5 days and accumulates 1.77" (45mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Yerkes, PA
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure
Yerkes, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"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
Yerkes, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
8mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.6mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7.2mph - Average wind speed in December:
7.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Yerkes, PA
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall
Yerkes, PA
- Average rainfall in January:
0.87" - Average rainfall in February:
0.75" - Average rainfall in March:
0.87" - Average rainfall in April:
1.22" - Average rainfall in May:
1.5" - Average rainfall in June:
1.34"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.77" - Average rainfall in September:
0.91" - Average rainfall in October:
1.02" - Average rainfall in November:
1.06" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days
Yerkes, PA
- Average rainfall days in January:
6.9 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
12.9 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
13.9 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
7 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.9 days).
Average snowfall
Yerkes, PA
The months with the highest snowfall are January and February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Yerkes, PA
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.9 days - Average snowfall days in March:
2.6 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 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 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Yerkes, 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 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Yerkes, PA
- Average sunshine days in January:
20.7 days - Average sunshine days in February:
16.5 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
15.2 days - Average sunshine days in May:
13.1 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
14.2 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
17 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is June (12.8 days).
Average UV index
Yerkes, PA
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Yerkes, PA
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Yerkes, PA
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Yerkes, Pennsylvania, USA
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