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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 an icy winter month in Orrstown, Pennsylvania, with temperature in the range of an average low of 22.1°F (-5.5°C) and an average high of 35.1°F (1.7°C). Orrstown's January weather, marked by an average high temperature of 35.1°F (1.7°C) and an average low temperature of 22.1°F (-5.5°C), is the coldest in the year. Weather in January »
Weather in February
February, the last month of the winter in Orrstown, is another cold month, with an average temperature varying between 38.8°F (3.8°C) and 24.3°F (-4.3°C). At the onset of February, Orrstown records an average high-temperature of a still icy 38.8°F (3.8°C), showing little deviation from the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Orrstown, Pennsylvania, with temperature in the range of an average high of 48.2°F (9°C) and an average low of 31.3°F (-0.4°C). The transition to March introduces an increase in the average high-temperature, shifting from an icy 38.8°F (3.8°C) in February to a chilly 48.2°F (9°C). Weather in March »
Weather in April
April in Orrstown, Pennsylvania, is a moderate spring month, with an average temperature varying between 41.5°F (5.3°C) and 60.4°F (15.8°C). The onset of April brings a rise in the average high-temperature, elevating from a chilly 48.2°F (9°C) in March to a mild 60.4°F (15.8°C). Weather in April »
Weather in May
May, the last month of the spring in Orrstown, is a pleasant month, with an average temperature varying between 71.1°F (21.7°C) and 51.6°F (10.9°C). A shift in the average high-temperature is noticeable in May, changing from a moderate 60.4°F (15.8°C) in April to a pleasant 71.1°F (21.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Orrstown, Pennsylvania, with an average temperature fluctuating between 58.3°F (14.6°C) and 78.8°F (26°C). With the transition into June, Orrstown experiences a subtle uplift in average high-temperatures, adjusting from a pleasant 71.1°F (21.7°C) in May to a warm 78.8°F (26°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Orrstown, Pennsylvania, with an average temperature ranging between max 83.8°F (28.8°C) and min 62.4°F (16.9°C). Temperature readings reach their annual highs in July, averaging 83.8°F (28.8°C) and a minimum average of 62.4°F (16.9°C). The heat index in July is estimated at a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Orrstown, Pennsylvania, with an average temperature ranging between max 81.7°F (27.6°C) and min 61.3°F (16.3°C). The introduction of August sees an average high-temperature of a still moderately hot 81.7°F (27.6°C), hardly deviating from July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Orrstown, Pennsylvania, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 74.3°F (23.5°C). A mild drop in Orrstown's average high-temperature is observed in September, transitioning from 81.7°F (27.6°C) in August to a still warm 74.3°F (23.5°C). Weather in September »
Weather in October
October, like September, in Orrstown, Pennsylvania, is another enjoyable autumn month, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 62.8°F (17.1°C). Welcoming October, Orrstown observes a shift in the average high-temperature, falling from September's moderately hot 74.3°F (23.5°C) to a refreshing 62.8°F (17.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Orrstown, is also a fresh month, with an average temperature fluctuating between 50°F (10°C) and 34.7°F (1.5°C). Onset of November witnesses a reduction in the average high-temperature, falling from a refreshing 62.8°F (17.1°C) in October to a fresh 50°F (10°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Orrstown, Pennsylvania, with an average temperature varying between 40.8°F (4.9°C) and 28.9°F (-1.7°C). Start of December brings a shift in the average high-temperature, falling from November's fresh 50°F (10°C) to an icy 40.8°F (4.9°C). Weather in December »
Updated: Jun 4, 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?
Temperature readings reach their annual highs in January, averaging 35.1°F (1.7°C) and a minimum average of 22.1°F (-5.5°C).
What is the driest month?
January is the month with the least rainfall. Rain falls for 7.3 days and accumulates 1.85" (47mm) of precipitation.
How many days does it rain?
Throughout the year, in Orrstown, there are 156 rainfall days, and 27.2" (691mm) of precipitation is accumulated.
When does it snow in Orrstown?
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 8.6 days and accumulates 4.92" (125mm) of snow.
How many days does it snow?
Throughout the year, there are 28.8 snowfall days, and 15.39" (391mm) of snow is accumulated.
What is the month with the lowest UV index?
The months with the lowest UV index in Orrstown are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month?
February and October, with an average relative humidity of 80%, are most humid months.
What is the month with the least sunshine?
With an average of 4.4h 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, 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?
The month with the most rainfall is May, when the rain falls for 17.3 days and typically aggregates up to 2.95" (75mm) of precipitation.
When it does not snow?
In Orrstown, snow does not fall in June through September.
When are the longest days?
June has the longest days of the year, with an average of 15h and 0min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What time of the year is the hottest in Orrstown?
Orrstown notes the warmest temperatures in July, with a average high of 83.8°F (28.8°C) and a low of 62.4°F (16.9°C).
What is the least humid month?
July is the least humid month, with an average relative humidity of 75%.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.3h of sunshine.
What is the month with the shortest days?
With an average of 9h and 24min of daylight, December has the shortest days of the year.
Average temperature
Orrstown, PA
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure
Orrstown, 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:
29.98"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
Orrstown, PA
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.7mph - Average wind speed in March:
7.6mph - Average wind speed in April:
7.6mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.5mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.7mph - Average wind speed in December:
7.2mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity
Orrstown, PA
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall
Orrstown, PA
- Average rainfall in January:
1.85" - Average rainfall in February:
1.93" - Average rainfall in March:
2.05" - Average rainfall in April:
2.44" - Average rainfall in May:
2.95" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.76" - Average rainfall in August:
2.56" - Average rainfall in September:
1.89" - Average rainfall in October:
2.52" - Average rainfall in November:
2.09" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days
Orrstown, PA
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
8.9 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
16 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
13.9 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall
Orrstown, PA
- Average snowfall in January:
4.92" - Average snowfall in February:
3.78" - Average snowfall in March:
3.58" - Average snowfall in April:
0.39" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is January (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Orrstown, PA
- Average snowfall days in January:
8.6 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
5.4 days - Average snowfall days in April:
1.2 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:
4.2 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Orrstown, 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 3min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 2min - 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days
Orrstown, PA
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
12.5 days
- Average sunshine days in July:
12.9 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
14.3 days - Average sunshine days in October:
15.9 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
16.6 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.6 days).
Average UV index
Orrstown, PA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Orrstown, PA
The months with the most cloud cover are January, February and December (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
Orrstown, PA
The months with the highest visibility are April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, August, September and October (5mi).
Orrstown, Pennsylvania, USA
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