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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, in Great Valley, New York, is another subzero cold winter month, with an average temperature ranging between max 28°F (-2.2°C) and min 16.2°F (-8.8°C). Great Valley, New York, notes the coldest temperatures in January, with a high average of 28°F (-2.2°C) and a low of 16.2°F (-8.8°C). Weather in January »
Weather in February
February, the last month of the winter in Great Valley, is another freezing cold month, with temperature in the range of an average high of 30.7°F (-0.7°C) and an average low of 18°F (-7.8°C). Great Valley experiences a transition to a still subzero cold 30.7°F (-0.7°C) in average high-temperatures with the arrival of February, not greatly differing from January's 28°F (-2.2°C). Weather in February »
Weather in March
March, the first month of the spring in Great Valley, is a wintry month, with an average temperature ranging between max 39.9°F (4.4°C) and min 25.2°F (-3.8°C). The shift into March is accompanied by a temperature increase, with the average high-temperature rising from a freezing cold 30.7°F (-0.7°C) in February to a cold 39.9°F (4.4°C). Weather in March »
Weather in April
April is a fresh spring month in Great Valley, New York, with an average temperature varying between 34.7°F (1.5°C) and 52.3°F (11.3°C). As April sets, the average high-temperature shows an increase, moving up from a cold 39.9°F (4.4°C) in March to a fresh 52.3°F (11.3°C). Weather in April »
Weather in May
May, the last month of the spring in Great Valley, is an enjoyable month, with an average temperature varying between 65.5°F (18.6°C) and 45.7°F (7.6°C). The rise of average high-temperatures is seen in May, with an increase from a fresh 52.3°F (11.3°C) in April to a refreshing 65.5°F (18.6°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Great Valley, New York, with an average temperature ranging between min 52.2°F (11.2°C) and max 72.5°F (22.5°C). The arrival of June signals a slight increase in the average high-temperature, moving from a comfortable 65.5°F (18.6°C) in May to a pleasant 72.5°F (22.5°C). Weather in June »
Weather in July
July is a moderately hot summer month in Great Valley, New York, with an average temperature varying between 57°F (13.9°C) and 77.5°F (25.3°C). Great Valley's July weather reaches an average high of 77.5°F (25.3°C) and an average low of 57°F (13.9°C), making it the warmest month. Weather in July »
Weather in August
August, the last month of the summer in Great Valley, is another warm month, with an average temperature ranging between min 55.2°F (12.9°C) and max 76.3°F (24.6°C). In August, Great Valley experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 77.5°F (25.3°C) in July to a still warm 76.3°F (24.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Great Valley, New York, with an average temperature varying between 50.2°F (10.1°C) and 69.6°F (20.9°C). With the onset of September, Great Valley's climate undergoes a slight change as the average high-temperature moves from a warm 76.3°F (24.6°C) in August to a pleasant 69.6°F (20.9°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Great Valley, New York, with an average temperature varying between 41.5°F (5.3°C) and 56.5°F (13.6°C). The average high-temperature drops in October, from September's agreeable 69.6°F (20.9°C) to a mild 56.5°F (13.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Great Valley, is another chilly month, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 43.7°F (6.5°C). November brings a decrease in the average high-temperature, falling from October's refreshing 56.5°F (13.6°C) to a frosty 43.7°F (6.5°C). Weather in November »
Weather in December
December, the first month of the winter in Great Valley, is still a cold month, with an average temperature fluctuating between 24.3°F (-4.3°C) and 34.2°F (1.2°C). As Great Valley, New York, enters December, the average high-temperature decreases from the a chilly 43.7°F (6.5°C) of November to a wintry 34.2°F (1.2°C). Weather in December »
Updated: Feb 13, 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 is the coldest time of year in Great Valley?
With its average high temperature of 28°F (-2.2°C) and a low of 16.2°F (-8.8°C), January is regarded as the coldest month in Great Valley.
What is the most humid month in Great Valley?
January and February, with an average relative humidity of 89%, are most humid months in Great Valley, New York.
How many days does it rain in Great Valley?
In Great Valley, during the entire year, the rain falls for 159.5 days and collects up to 28.03" (712mm) of precipitation.
When does it snow in Great Valley?
Months with snowfall in Great Valley are January through May, October through December.
How many days does it snow in Great Valley?
In Great Valley, during the entire year, snow falls for 75.5 days and aggregates up to 34.17" (868mm) of snow.
What is the month with the least sunshine in Great Valley?
With an average of 2.3h of sunshine, January has the least sunshine of the year.
When is the lowest UV index in Great Valley?
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Great Valley.
When does it snow the most in Great Valley?
February is the month with the most snowfall. Snow falls for 15.5 days and accumulates 8.98" (228mm) of snow.
When is Daylight Saving Time (DST) in Great Valley?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Great Valley, 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 wettest month in Great Valley?
April is the month with the most rainfall in Great Valley. Rain falls for 16.3 days and accumulates 3.27" (83mm) of precipitation.
What is the least humid month in Great Valley?
The least humid month in Great Valley, New York, is May, with an average relative humidity of 79%.
When it does not snow in Great Valley?
In Great Valley, snow does not fall in June through September.
When are the longest days in Great Valley?
June has the longest days of the year in Great Valley, New York, with an average of 15h and 12min of daylight.
What are the months with the highest UV index in Great Valley?
The months with the highest UV index in Great Valley, New York, are June through August, with an average maximum UV index of 5.
What month is the hottest in Great Valley?
July is the warmest month, with an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 57°F (13.9°C).
What are the months with the most sunshine in Great Valley?
July and August, with an average of 9.7h of sunshine, are months with the most sunshine.
What is the driest month in Great Valley?
September is the month with the least rainfall in Great Valley. Rain falls for 14.4 days and accumulates 1.69" (43mm) of precipitation.
What is the month with the shortest days in Great Valley?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Great Valley, NY
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (28°F).
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure
Great Valley, NY
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.06"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:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Great Valley, NY
- Average wind speed in January:
10mph - Average wind speed in February:
9.4mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.4mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.8mph - Average wind speed in November:
8.5mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
Great Valley, NY
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (79%).
Average rainfall
Great Valley, NY
- Average rainfall in January:
1.97" - Average rainfall in February:
2.28" - Average rainfall in March:
2.05" - Average rainfall in April:
3.27" - Average rainfall in May:
2.64" - Average rainfall in June:
2.52"
- Average rainfall in July:
2.4" - Average rainfall in August:
2.24" - Average rainfall in September:
1.69" - Average rainfall in October:
2.95" - Average rainfall in November:
1.85" - Average rainfall in December:
2.17"
The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days
Great Valley, NY
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
16 days - Average rainfall days in September:
14.4 days - Average rainfall days in October:
16.1 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
9.2 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6.7 days).
Average snowfall
Great Valley, NY
- Average snowfall in January:
6.42" - Average snowfall in February:
8.98" - Average snowfall in March:
3.58" - Average snowfall in April:
2.36" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (8.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Great Valley, NY
- Average snowfall days in January:
18.3 days - Average snowfall days in February:
15.5 days - Average snowfall days in March:
9.8 days - Average snowfall days in April:
4.5 days - Average snowfall days in May:
0.8 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:
1.9 days - Average snowfall days in November:
9.2 days - Average snowfall days in December:
15.5 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Great Valley, NY
- Average daylight in January:
9h and 3min - 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 4min - 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 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
2h and 2min - Average sunshine in February:
2h and 4min - 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:
9h and 0min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 2min - Average sunshine in October:
4h and 2min - Average sunshine in November:
4h and 0min - Average sunshine in December:
2h and 3min
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
Great Valley, NY
- Average sunshine days in January:
8.3 days - Average sunshine days in February:
8.9 days - Average sunshine days in March:
12 days - Average sunshine days in April:
9.8 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11.5 days - Average sunshine days in September:
13.3 days - Average sunshine days in October:
12.5 days - Average sunshine days in November:
12.3 days - Average sunshine days in December:
8.8 days
The month with the most sunshine days is September (13.3 days).
The month with the least sunshine days is January (8.3 days).
Average UV index
Great Valley, NY
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Great Valley, NY
The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility
Great Valley, NY
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Great Valley, New York, USA
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