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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 Heidelberg, Pennsylvania, is an icy winter month, with temperature in the range of an average high of 33.4°F (0.8°C) and an average low of 21°F (-6.1°C). Heidelberg's January weather, marked by an average high temperature of 33.4°F (0.8°C) and an average low temperature of 21°F (-6.1°C), is the coldest in the year. Weather in January »
Weather in February
February, the last month of the winter in Heidelberg, is also a wintry month, with temperature in the range of an average high of 37.8°F (3.2°C) and an average low of 23.4°F (-4.8°C). The average high-temperature for February is a still cold 37.8°F (3.2°C), closely aligning with the temperature of the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Heidelberg, is a frosty month, with an average temperature ranging between max 47.8°F (8.8°C) and min 31.5°F (-0.3°C). March brings a rise in the average high-temperature, transitioning from February's icy 37.8°F (3.2°C) to a frosty 47.8°F (8.8°C). Weather in March »
Weather in April
April is a refreshing spring month in Heidelberg, Pennsylvania, with an average temperature fluctuating between 41.4°F (5.2°C) and 60.6°F (15.9°C). In Heidelberg, the average high-temperature in April increases from a chilly 47.8°F (8.8°C) in March to a refreshing 60.6°F (15.9°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Heidelberg, Pennsylvania, with an average temperature varying between 72.3°F (22.4°C) and 51.3°F (10.7°C). The shift from April to May brings an increase in the average high-temperature, moving from a mild 60.6°F (15.9°C) to an agreeable 72.3°F (22.4°C). Weather in May »
Weather in June
June, the first month of the summer in Heidelberg, is a moderately hot month, with an average temperature ranging between max 79°F (26.1°C) and min 58.3°F (14.6°C). As June begins, there's a slight increase in the average high-temperature, moving from an agreeable 72.3°F (22.4°C) in May to a warm 79°F (26.1°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Heidelberg, Pennsylvania, with an average temperature fluctuating between 83.7°F (28.7°C) and 62.2°F (16.8°C). July tends to be the warmest month, with temperatures averaging a daily high of 83.7°F (28.7°C) and a low of 62.2°F (16.8°C). July's mean heat index is appraised at a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Heidelberg, is also a moderately hot month, with an average temperature ranging between max 82.4°F (28°C) and min 60.8°F (16°C). The beginning of August reveals an average high-temperature of a still warm 82.4°F (28°C), showing minimal deviation from the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Heidelberg, is still a warm month, with an average temperature ranging between min 55.8°F (13.2°C) and max 75.7°F (24.3°C). September signals a slight drop in average high-temperature, sliding from August's 82.4°F (28°C) to a still moderately hot 75.7°F (24.3°C). Weather in September »
Weather in October
October, like September, in Heidelberg, Pennsylvania, is another refreshing autumn month, with an average temperature ranging between max 62.1°F (16.7°C) and min 45.3°F (7.4°C). In Heidelberg, the average high-temperature in October drops from a warm 75.7°F (24.3°C) in September to a comfortable 62.1°F (16.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Heidelberg, Pennsylvania, with an average temperature ranging between max 49.3°F (9.6°C) and min 34.2°F (1.2°C). November shows a mild decline in the average high-temperature, falling from October's comfortable 62.1°F (16.7°C) to a frosty 49.3°F (9.6°C). Weather in November »
Weather in December
December, the first month of the winter in Heidelberg, is also a wintry month, with an average temperature varying between 28.4°F (-2°C) and 39.7°F (4.3°C). December indicates a shift in the average high-temperature, from November's frosty 49.3°F (9.6°C) to an icy 39.7°F (4.3°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 part of the year is the coldest?
Heidelberg's January weather, marked by an average high temperature of 33.4°F (0.8°C) and an average low temperature of 21°F (-6.1°C), is the coldest in the year.
How much does it rain?
In Heidelberg, during the entire year, the rain falls for 132.6 days and collects up to 11.5" (292mm) of precipitation.
When does it snow in Heidelberg?
January through April, November and December are months with snowfall.
How much does it snow in Heidelberg?
Throughout the year, there are 32.5 snowfall days, and 3.66" (93mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine in Heidelberg is January, with an average of 3h of sunshine.
What is the most humid month?
With an average relative humidity of 85%, February is the most humid month.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 7.8 days and accumulates 0.98" (25mm) of snow.
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.
When it does not snow?
In Heidelberg, snow does not fall in May through October.
When are the longest days?
The month with the longest days is June, 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 through August, with an average maximum UV index of 6.
What are the warmest months?
The warmest month is July, with an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 62.2°F (16.8°C).
What is the least humid month?
July and August, with an average relative humidity of 75%, are the least humid months.
What is the rainiest month?
July is the month with the most rainfall. Rain falls for 15.6 days and accumulates 1.34" (34mm) of precipitation.
What month has the most sunshine in Heidelberg?
The month with the most sunshine is August, with an average of 10.2h of sunshine.
What is the driest month?
November is the month with the least rainfall in Heidelberg, Pennsylvania. Rain falls for 7.7 days and accumulates 0.67" (17mm) 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?
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Heidelberg, 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 (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 (21°F).
Average pressure
Heidelberg, PA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30"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:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Heidelberg, PA
- Average wind speed in January:
7.9mph - 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:
6mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity
Heidelberg, PA
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall
Heidelberg, PA
- Average rainfall in January:
0.71" - Average rainfall in February:
0.79" - Average rainfall in March:
0.83" - Average rainfall in April:
1.22" - Average rainfall in May:
1.22" - Average rainfall in June:
1.26"
- Average rainfall in July:
1.34" - Average rainfall in August:
0.98" - Average rainfall in September:
0.79" - Average rainfall in October:
0.83" - Average rainfall in November:
0.67" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is November (0.67").
Average rainfall days
Heidelberg, PA
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
13.7 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
10 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (6.4 days).
Average snowfall
Heidelberg, PA
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Heidelberg, PA
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
5 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:
2.5 days - Average snowfall days in December:
6.4 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Heidelberg, 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 18min).
- Average sunshine in January:
3h and 0min - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 1min - 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:
4h and 5min - Average sunshine in December:
3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days
Heidelberg, PA
- Average sunshine days in January:
17.6 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
15 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
13.9 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
14.1 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.2 days).
Average UV index
Heidelberg, PA
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Heidelberg, PA
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Heidelberg, 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).
Heidelberg, Pennsylvania, USA
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