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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, in Greencastle, Pennsylvania, is an icy winter month, with an average temperature varying between 22.5°F (-5.3°C) and 35.4°F (1.9°C). In Greencastle, January is the coldest month, with temperatures averaging a high of 35.4°F (1.9°C) and a low of 22.5°F (-5.3°C). Weather in January »
Weather in February
February, the last month of the winter in Greencastle, is also an icy month, with an average temperature ranging between max 39.9°F (4.4°C) and min 24.6°F (-4.1°C). Greencastle experiences an average high-temperature of a still wintry 39.9°F (4.4°C) in February, subtly different from January's 35.4°F (1.9°C). Weather in February »
Weather in March
March, the first month of the spring in Greencastle, is a chilly month, with an average temperature varying between 32°F (0°C) and 48.7°F (9.3°C). March's arrival is noted with a slight increase in the average high-temperature, moving from a cold 39.9°F (4.4°C) in February to a chilly 48.7°F (9.3°C). Weather in March »
Weather in April
April is a comfortable spring month in Greencastle, Pennsylvania, with an average temperature ranging between min 41.7°F (5.4°C) and max 61.3°F (16.3°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from a frosty 48.7°F (9.3°C) to a comfortable 61.3°F (16.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Greencastle, Pennsylvania, with an average temperature varying between 71.2°F (21.8°C) and 51.6°F (10.9°C). Greencastle's May weather brings a rise in high-temperatures, moving from an enjoyable 61.3°F (16.3°C) in April to an agreeable 71.2°F (21.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Greencastle, Pennsylvania, with an average temperature fluctuating between 79.5°F (26.4°C) and 58.6°F (14.8°C). June showcases a minor temperature ascent, adjusting from May's agreeable 71.2°F (21.8°C) to a warm 79.5°F (26.4°C). Weather in June »
Weather in July
July, like June, in Greencastle, Pennsylvania, is another warm summer month, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 84.4°F (29.1°C). July, having an average high-temperature of 84.4°F (29.1°C) and an average low-temperature of 62.6°F (17°C), is the warmest month. For most parts of July, the heat index is calculated to be a hot 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Greencastle, Pennsylvania, with an average temperature fluctuating between 81.9°F (27.7°C) and 61.5°F (16.4°C). The start of August sees the average high-temperature at a still moderately hot 81.9°F (27.7°C), showing little difference from July's 84.4°F (29.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Greencastle, Pennsylvania, with an average temperature fluctuating between 55.6°F (13.1°C) and 74.8°F (23.8°C). In the transition to September, Greencastle observes a minor drop in the average high-temperature, shifting from 81.9°F (27.7°C) in August to a still warm 74.8°F (23.8°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Greencastle, Pennsylvania, with an average temperature varying between 63.3°F (17.4°C) and 46°F (7.8°C). October's onset brings a slight change in high-temperatures, falling from a moderately hot 74.8°F (23.8°C) in September to an enjoyable 63.3°F (17.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Greencastle, is also a fresh month, with an average temperature ranging between max 50.5°F (10.3°C) and min 34.7°F (1.5°C). The transition into November is accompanied by a temperature decrease, with the average high-temperature shifting from an enjoyable 63.3°F (17.4°C) in October to a fresh 50.5°F (10.3°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Greencastle, Pennsylvania, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 41.2°F (5.1°C). The onset of December comes with a shift in the average high-temperature, falling from a fresh 50.5°F (10.3°C) in November to a wintry 41.2°F (5.1°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Greencastle?
Temperature records in Greencastle mark January as the coldest month, with highs averaging 35.4°F (1.9°C) and lows at 22.5°F (-5.3°C).
What is the driest month in Greencastle?
The month with the least rainfall in Greencastle, Pennsylvania, is January, when the rain falls for 9.2 days and typically collects 1.85" (47mm) of precipitation.
How much does it rain in Greencastle?
Throughout the year, in Greencastle, Pennsylvania, there are 161.8 rainfall days, and 28.07" (713mm) of precipitation is accumulated.
When does it snow in Greencastle?
Months with snowfall are January through April, October through December.
When does it snow the most in Greencastle?
The month with the most snowfall in Greencastle, Pennsylvania, is January, when snow falls for 8.1 days and typically aggregates up to 4.53" (115mm) of snow.
How much does it snow in Greencastle?
Throughout the year, there are 26.6 snowfall days, and 14.69" (373mm) of snow is accumulated.
What is the month with the lowest UV index in Greencastle?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What are the most humid months in Greencastle?
The months with the highest humidity in Greencastle are February, May, October and December, with an average relative humidity of 79%.
What is the month with the least sunshine in Greencastle?
With an average of 4.6h of sunshine, February has the least sunshine of the year in Greencastle.
When is Daylight Saving Time (DST) in Greencastle?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Greencastle, 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 are the least humid months in Greencastle?
The months with the lowest humidity are April and July, with an average relative humidity of 75%.
What is the rainiest month in Greencastle?
The month with the most rainfall is May, when the rain falls for 18.8 days and typically aggregates up to 3.15" (80mm) of precipitation.
When it does not snow in Greencastle?
May through September are months without snowfall.
When is the highest UV index in Greencastle?
The months with the highest UV index in Greencastle, Pennsylvania, are May through July, with an average maximum UV index of 6.
When are the longest days in Greencastle?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What is the warmest month in Greencastle?
During the warmest month in Greencastle, July, temperatures average a high of 84.4°F (29.1°C) and a low of 62.6°F (17°C).
What month has the most sunshine in Greencastle?
July has the most sunshine of the year in Greencastle, Pennsylvania, with an average of 10.5h of sunshine.
What is the month with the shortest days in Greencastle?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Greencastle, PA
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.4°F).
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
Greencastle, PA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Greencastle, PA
- Average wind speed in January:
7.7mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.5mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.5mph - Average wind speed in September:
5mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.6mph - Average wind speed in December:
7mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity
Greencastle, PA
The months with the highest relative humidity are February, May, October and December (79%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall
Greencastle, PA
- Average rainfall in January:
1.85" - Average rainfall in February:
1.93" - Average rainfall in March:
2.17" - Average rainfall in April:
2.68" - Average rainfall in May:
3.15" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.83" - Average rainfall in August:
2.76" - Average rainfall in September:
1.97" - Average rainfall in October:
2.28" - Average rainfall in November:
1.89" - Average rainfall in December:
2.01"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days
Greencastle, PA
- Average rainfall days in January:
9.2 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (9 days).
Average snowfall
Greencastle, PA
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Greencastle, PA
- Average snowfall days in January:
8.1 days - Average snowfall days in February:
7.1 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
0.6 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:
0.1 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Greencastle, 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:
14h and 5min
- 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: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 4min - 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
Greencastle, PA
- Average sunshine days in January:
16.4 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
12.2 days - Average sunshine days in August:
12.6 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
17.1 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index
Greencastle, PA
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Greencastle, PA
The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Greencastle, PA
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Greencastle, Pennsylvania, USA
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