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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 Haynes Mill, Pennsylvania, with an average temperature varying between 33.4°F (0.8°C) and 20.8°F (-6.2°C). The coldest time of the year is January, with temperatures averaging a high of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C). Weather in January »
Weather in February
February, the last month of the winter in Haynes Mill, is also an icy month, with temperature in the range of an average high of 36.7°F (2.6°C) and an average low of 22.5°F (-5.3°C). The arrival of February is marked by an average high-temperature of a still icy 36.7°F (2.6°C), bearing a close resemblance to January. Weather in February »
Weather in March
March, the first month of the spring in Haynes Mill, is a chilly month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 45.1°F (7.3°C). March's onset witnesses a minor shift in the average high-temperature, moving from a cold 36.7°F (2.6°C) in February to a chilly 45.1°F (7.3°C). Weather in March »
Weather in April
April is a mild spring month in Haynes Mill, Pennsylvania, with an average temperature ranging between max 57.7°F (14.3°C) and min 39.9°F (4.4°C). With the onset of April, Haynes Mill's average high-temperature experiences a rise, moving from March's frosty 45.1°F (7.3°C) to a mild 57.7°F (14.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Haynes Mill, Pennsylvania, with temperature in the range of an average high of 68.7°F (20.4°C) and an average low of 49.6°F (9.8°C). As Haynes Mill welcomes May, the average high-temperature sees a rise, transitioning from a moderate 57.7°F (14.3°C) in April to an agreeable 68.7°F (20.4°C). Weather in May »
Weather in June
June, the first month of the summer in Haynes Mill, is a warm month, with an average temperature ranging between max 76.8°F (24.9°C) and min 56.8°F (13.8°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's agreeable 68.7°F (20.4°C) to a moderately hot 76.8°F (24.9°C). Weather in June »
Weather in July
July, like June, in Haynes Mill, Pennsylvania, is another warm summer month, with an average temperature ranging between max 82.8°F (28.2°C) and min 62.2°F (16.8°C). The average temperatures reach their apex in July, averaging 82.8°F (28.2°C) at the high end and 62.2°F (16.8°C) at the low end. July's heat index is evaluated at a hot 89.6°F (32°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Haynes Mill, Pennsylvania, with an average temperature varying between 80.2°F (26.8°C) and 60.6°F (15.9°C). Haynes Mill experiences an average high-temperature of a still moderately hot 80.2°F (26.8°C) in August, marking an insignificant shift from 82.8°F (28.2°C) in July. Weather in August »
Weather in September
September, the first month of the autumn in Haynes Mill, is still a warm month, with an average temperature fluctuating between 73.8°F (23.2°C) and 54.5°F (12.5°C). As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from 80.2°F (26.8°C) to a still moderately hot 73.8°F (23.2°C). Weather in September »
Weather in October
October, like September, in Haynes Mill, Pennsylvania, is another refreshing autumn month, with temperature in the range of an average high of 61°F (16.1°C) and an average low of 45.5°F (7.5°C). Start of October brings a shift in the average high-temperature, falling from September's moderately hot 73.8°F (23.2°C) to an enjoyable 61°F (16.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Haynes Mill, is also a frosty month, with an average temperature fluctuating between 34.3°F (1.3°C) and 48.6°F (9.2°C). During Haynes Mill's transition into November, the average high-temperature lessens, moving from a comfortable 61°F (16.1°C) in October to a chilly 48.6°F (9.2°C). Weather in November »
Weather in December
December, the first month of the winter in Haynes Mill, is also a wintry month, with an average temperature fluctuating between 28°F (-2.2°C) and 39°F (3.9°C). Haynes Mill's progression into December involves a drop in the average high-temperature, receding from a chilly 48.6°F (9.2°C) in November to a wintry 39°F (3.9°C). Weather in December »
Updated: Aug 24, 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 are the coldest months?
January, with average temperatures reaching a high of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C), is the coldest month.
How much does it rain in Haynes Mill?
In Haynes Mill, during the entire year, the rain falls for 167 days and collects up to 33.5" (851mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
How much does it snow?
Throughout the year, there are 33.8 snowfall days, and 17.91" (455mm) of snow is accumulated.
What is the most humid month?
With an average relative humidity of 82%, February is the most humid month.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 9.5 days and typically aggregates up to 4.88" (124mm) of snow.
What is the month with the least sunshine in Haynes Mill?
The month with the least sunshine is February, with an average of 4.5h of sunshine.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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?
With an average relative humidity of 76%, April is the least humid month.
What is the month with the highest UV index?
The months with the highest UV index in Haynes Mill 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?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What part of the year is the hottest?
The warmest period is July, when temperatures fluctuate between an average high of 82.8°F (28.2°C) and a low of 62.2°F (16.8°C).
What is the rainiest month?
The month with the most rainfall is July, when the rain falls for 16.7 days and typically aggregates up to 3.46" (88mm) of precipitation.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.4h of sunshine.
What is the driest month?
September is the month with the least rainfall. Rain falls for 12.2 days and accumulates 2.01" (51mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
What is the month with the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Haynes Mill, PA
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure
Haynes Mill, PA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.98"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:
30.09"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
Haynes Mill, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
8mph - Average wind speed in March:
8.2mph - Average wind speed in April:
8mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Haynes Mill, PA
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Haynes Mill, PA
- Average rainfall in January:
2.48" - Average rainfall in February:
2.36" - Average rainfall in March:
2.68" - Average rainfall in April:
3.11" - Average rainfall in May:
3.03" - Average rainfall in June:
2.8"
- Average rainfall in July:
3.46" - Average rainfall in August:
3.07" - Average rainfall in September:
2.01" - Average rainfall in October:
2.83" - Average rainfall in November:
2.48" - Average rainfall in December:
3.19"
The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days
Haynes Mill, PA
- Average rainfall days in January:
10 days - Average rainfall days in February:
9.9 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
16.7 days - Average rainfall days in August:
16 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
13.6 days - Average rainfall days in November:
11.3 days - Average rainfall days in December:
13.1 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (9.9 days).
Average snowfall
Haynes Mill, PA
- Average snowfall in January:
4.33" - Average snowfall in February:
4.88" - Average snowfall in March:
4.29" - Average snowfall in April:
0.2" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Haynes Mill, PA
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
0.7 days - Average snowfall days in May:
0.1 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:
1.4 days - Average snowfall days in December:
6.1 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Haynes Mill, 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 4min - 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:
4h and 5min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days
Haynes Mill, PA
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
12.9 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
11.1 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
16.9 days - Average sunshine days in December:
14.8 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (10.9 days).
Average UV index
Haynes Mill, 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
Haynes Mill, PA
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility
Haynes Mill, PA
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Haynes Mill, Pennsylvania, USA
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