Climate and monthly weather forecastShirleysburg, PA
Climate and monthly weather forecast
Weather in January
January, like December, in Shirleysburg, Pennsylvania, is a wintry winter month, with temperature in the range of an average low of 20.1°F (-6.6°C) and an average high of 32.9°F (0.5°C). January is Shirleysburg's coldest month, registering average high temperatures of 32.9°F (0.5°C) and lows of 20.1°F (-6.6°C). Weather in January »Weather in February
February, the last month of the winter in Shirleysburg, is also a wintry month, with an average temperature ranging between max 37.2°F (2.9°C) and min 22.8°F (-5.1°C). The advent of February signifies a minor shift to an average high-temperature of a still wintry 37.2°F (2.9°C), aligning closely with January. Weather in February »Weather in March
March, the first month of the spring in Shirleysburg, is a frosty month, with an average temperature fluctuating between 29.8°F (-1.2°C) and 46.9°F (8.3°C). Shirleysburg experiences a temperature shift with the start of March, with average high-temperatures moving from an icy 37.2°F (2.9°C) in February to a chilly 46.9°F (8.3°C). Weather in March »Weather in April
April is a mild spring month in Shirleysburg, Pennsylvania, with an average temperature fluctuating between 39.7°F (4.3°C) and 59.4°F (15.2°C). April's arrival brings a change in high-temperatures, moving from a frosty 46.9°F (8.3°C) in March to a moderate 59.4°F (15.2°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Shirleysburg, Pennsylvania, with an average temperature ranging between max 70.3°F (21.3°C) and min 49.5°F (9.7°C). With the onset of May, Shirleysburg experiences a temperature shift, with the average high-temperature moving from a mild 59.4°F (15.2°C) in April to an agreeable 70.3°F (21.3°C). Weather in May »Weather in June
June, the first month of the summer in Shirleysburg, is a warm month, with an average temperature fluctuating between 78.3°F (25.7°C) and 55.9°F (13.3°C). In Shirleysburg, the onset of June comes with a modest high-temperature shift, transitioning from May's pleasant 70.3°F (21.3°C) to a moderately hot 78.3°F (25.7°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Shirleysburg, Pennsylvania, with an average temperature varying between 60.4°F (15.8°C) and 83.7°F (28.7°C). Shirleysburg's warmest month, July, registers temperatures that range from a high of 83.7°F (28.7°C) to a low of 60.4°F (15.8°C). The heat index for July is computed to be a tropical 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 Shirleysburg, Pennsylvania, with an average temperature ranging between max 81.3°F (27.4°C) and min 58.5°F (14.7°C). August's arrival registers an average high-temperature of a still warm 81.3°F (27.4°C), closely aligning with the temperature of the previous month. Weather in August »Weather in September
September, the first month of the autumn in Shirleysburg, is also a moderately hot month, with an average temperature ranging between max 74.3°F (23.5°C) and min 53.2°F (11.8°C). The average high-temperature slightly decreases in September, shifting from a moderately hot 81.3°F (27.4°C) in August to a still warm 74.3°F (23.5°C). Weather in September »Weather in October
October, like September, in Shirleysburg, Pennsylvania, is another enjoyable autumn month, with an average temperature varying between 43.9°F (6.6°C) and 61.5°F (16.4°C). With the onset of October, Shirleysburg experiences a modest temperature adjustment, with the average high-temperature receding from a warm 74.3°F (23.5°C) in September to a refreshing 61.5°F (16.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Shirleysburg, Pennsylvania, with an average temperature varying between 48.4°F (9.1°C) and 32.9°F (0.5°C). As November commences, the average high-temperature shows a reduction, transitioning from an enjoyable 61.5°F (16.4°C) in October to a chilly 48.4°F (9.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Shirleysburg, Pennsylvania, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 38.8°F (3.8°C). December's arrival correlates with a reduction in the average high-temperature, down from a chilly 48.4°F (9.1°C) in November to an icy 38.8°F (3.8°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
January, with an average high of 32.9°F (0.5°C) and a low of 20.1°F (-6.6°C), signifies the coldest month of the year.
In Shirleysburg, during the entire year, the rain falls for 164.3 days and collects up to 28.19" (716mm) of precipitation.
Months with snowfall are January through April, October through December.
January is the month with the most snowfall. Snow falls for 12.2 days and accumulates 5.24" (133mm) of snow.
In Shirleysburg, during the entire year, snow falls for 40.6 days and aggregates up to 17.91" (455mm) of snow.
The month with the least sunshine in Shirleysburg is January, with an average of 4.2h of sunshine.
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
With an average relative humidity of 82%, February is the most humid month.
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.
The month with the most rainfall is May, when the rain falls for 17.7 days and typically aggregates up to 3.07" (78mm) of precipitation.
In Shirleysburg, snow does not fall in May through September.
The months with the highest UV index are May and June, with an average maximum UV index of 6.
June has the longest days of the year, with an average of 15h and 0min of daylight.
In Shirleysburg, July is the month with the highest recorded average temperatures, measuring a high of 83.7°F (28.7°C) and a low of 60.4°F (15.8°C).
July is the least humid month, with an average relative humidity of 75%.
The month with the most sunshine is July, with an average of 10.3h of sunshine.
September is the month with the least rainfall in Shirleysburg. Rain falls for 12.8 days and accumulates 1.85" (47mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Shirleysburg, PA
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure
Shirleysburg, 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
Shirleysburg, PA
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.4mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
4.6mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.8mph - Average wind speed in October:
6.1mph - Average wind speed in November:
6.5mph - Average wind speed in December:
7.1mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity
Shirleysburg, PA
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).
Average rainfall
Shirleysburg, PA
- Average rainfall in January:
2.09" - Average rainfall in February:
2.17" - Average rainfall in March:
2.32" - Average rainfall in April:
2.87" - Average rainfall in May:
3.07" - Average rainfall in June:
2.32"
- Average rainfall in July:
2.48" - Average rainfall in August:
2.05" - Average rainfall in September:
1.85" - Average rainfall in October:
2.64" - Average rainfall in November:
1.97" - Average rainfall in December:
2.36"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days
Shirleysburg, PA
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
13.4 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.5 days).
Average snowfall
Shirleysburg, PA
The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Shirleysburg, PA
- Average snowfall days in January:
12.2 days - Average snowfall days in February:
10.8 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
1.3 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:
0.2 days - Average snowfall days in November:
2.1 days - Average snowfall days in December:
7.7 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Shirleysburg, PA
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 12min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Shirleysburg, PA
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
11.2 days - Average sunshine days in March:
12.4 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
10.7 days - Average sunshine days in June:
11.5 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
15 days - Average sunshine days in November:
16.7 days - Average sunshine days in December:
14.2 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (10.7 days).
Average UV index
Shirleysburg, PA
The months with the highest UV index are May and June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Shirleysburg, PA
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility
Shirleysburg, 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).
