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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 Hummelstown, Pennsylvania, is an icy winter month, with an average temperature fluctuating between 34.2°F (1.2°C) and 21.9°F (-5.6°C). Hummelstown, Pennsylvania, experiences its lowest temperatures in January, with an average peak of 34.2°F (1.2°C) and a low of 21.9°F (-5.6°C). Weather in January »
Weather in February
February, the last month of the winter in Hummelstown, is another cold month, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 23.5°F (-4.7°C). Upon the beginning of February, Hummelstown's high-temperatures register at a still wintry 37.9°F (3.3°C), closely mirroring the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Hummelstown, is a chilly month, with an average temperature ranging between max 46.9°F (8.3°C) and min 31.5°F (-0.3°C). The beginning of March signals a rise in the average high-temperature, moving from a cold 37.9°F (3.3°C) in February to a frosty 46.9°F (8.3°C). Weather in March »
Weather in April
April is a mild spring month in Hummelstown, Pennsylvania, with an average temperature ranging between min 41.5°F (5.3°C) and max 59.5°F (15.3°C). With the onset of April, Hummelstown sees a temperature rise, with the average high-temperature moving from March's frosty 46.9°F (8.3°C) to a mild 59.5°F (15.3°C). Weather in April »
Weather in May
May, the last month of the spring in Hummelstown, is an agreeable month, with an average temperature ranging between min 51.3°F (10.7°C) and max 69.8°F (21°C). May's arrival is marked by an increase in the average high-temperature, moving from a mild 59.5°F (15.3°C) in April to an agreeable 69.8°F (21°C). Weather in May »
Weather in June
June, the first month of the summer in Hummelstown, is a moderately hot month, with an average temperature ranging between max 77°F (25°C) and min 58.6°F (14.8°C). The start of June signals a slight increase in the average high-temperature, moving from a pleasant 69.8°F (21°C) in May to a warm 77°F (25°C). Weather in June »
Weather in July
July, like June, in Hummelstown, Pennsylvania, is a moderately hot summer month, with an average temperature varying between 63.5°F (17.5°C) and 82.4°F (28°C). In Hummelstown, the highest average temperatures are observed in July, with a high of 82.4°F (28°C) and a low of 63.5°F (17.5°C). The heat index in July is calculated to be a tropical 89.6°F (32°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Hummelstown, Pennsylvania, with an average temperature ranging between min 61.7°F (16.5°C) and max 80.2°F (26.8°C). Hummelstown marks the start of August with an average high-temperature of a still moderately hot 80.2°F (26.8°C), hinting at a slight fluctuation from July's 82.4°F (28°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Hummelstown, Pennsylvania, with an average temperature varying between 55.4°F (13°C) and 74.3°F (23.5°C). As Hummelstown enters September, the average high-temperature subtly lowers from the 80.2°F (26.8°C) of August to a still moderately hot 74.3°F (23.5°C). Weather in September »
Weather in October
October, like September, in Hummelstown, Pennsylvania, is another comfortable autumn month, with an average temperature ranging between max 61.9°F (16.6°C) and min 45.9°F (7.7°C). Hummelstown's transition into October involves a shift in temperature, receding from a warm 74.3°F (23.5°C) in September to a refreshing 61.9°F (16.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Hummelstown, is another chilly month, with an average temperature varying between 34.9°F (1.6°C) and 49.8°F (9.9°C). Hummelstown's November weather features a mild decline in high-temperatures, reducing from an enjoyable 61.9°F (16.6°C) in October to a frosty 49.8°F (9.9°C). Weather in November »
Weather in December
December, the first month of the winter in Hummelstown, is also a wintry month, with temperature in the range of an average low of 29.5°F (-1.4°C) and an average high of 41°F (5°C). The start of December signals a gentle decrease in the average high-temperature, transitioning from a frosty 49.8°F (9.9°C) in November to a wintry 41°F (5°C). Weather in December »
Updated: Jul 23, 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?
The lowest temperatures are recorded in January, with averages reaching a high of 34.2°F (1.2°C) and a low of 21.9°F (-5.6°C).
How many days does it rain in Hummelstown?
Throughout the year, there are 162.3 rainfall days, and 30.71" (780mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, October through December.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 9 days and typically aggregates up to 3.94" (100mm) of snow.
How much does it snow?
Throughout the year, there are 27.8 snowfall days, and 13.23" (336mm) of snow is accumulated.
What are the months with the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What are the most humid months?
The months with the highest humidity are February and May, with an average relative humidity of 81%.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 4.5h of sunshine.
What is the least humid month?
The months with the lowest humidity in Hummelstown, Pennsylvania, are March and April, with an average relative humidity of 76%.
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?
May is the month with the most rainfall. Rain falls for 18.4 days and accumulates 3.15" (80mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
What is the month with the highest UV index?
The months with the highest UV index are May through July, with an average maximum UV index of 6.
When are the longest days in Hummelstown?
June has the longest days of the year, with an average of 15h and 0min of daylight.
What time of the year is the hottest?
July is the warmest month, exhibiting average temperatures of 82.4°F (28°C) at the peak and 63.5°F (17.5°C) at the base.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.5h of sunshine.
What is the driest month in Hummelstown?
The month with the least rainfall is September, when the rain falls for 12 days and typically collects 2.05" (52mm) of precipitation.
What is the month with the shortest days in Hummelstown?
With an average of 9h and 24min of daylight, December has the shortest days of the year.
Average temperature
Hummelstown, PA
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (34.2°F).
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure
Hummelstown, PA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"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:
30.13"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Hummelstown, PA
- Average wind speed in January:
8.4mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.9mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Hummelstown, PA
The months with the highest relative humidity are February and May (81%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall
Hummelstown, PA
- Average rainfall in January:
2.24" - Average rainfall in February:
2.13" - Average rainfall in March:
2.4" - Average rainfall in April:
2.87" - Average rainfall in May:
3.15" - Average rainfall in June:
2.52"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.87" - Average rainfall in September:
2.05" - Average rainfall in October:
2.87" - Average rainfall in November:
2.28" - Average rainfall in December:
2.44"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days
Hummelstown, PA
- Average rainfall days in January:
8.5 days - Average rainfall days in February:
9.7 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
17 days - Average rainfall days in May:
18.4 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
12 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.5 days).
Average snowfall
Hummelstown, PA
The month with the highest snowfall is January (3.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Hummelstown, PA
- Average snowfall days in January:
9 days - Average snowfall days in February:
6.6 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
0.4 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:
1.1 days - Average snowfall days in December:
5.2 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Hummelstown, 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 4min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 2min - 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 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
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 30min).
Average sunshine days
Hummelstown, PA
- Average sunshine days in January:
15.8 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
10 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
15.6 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10 days).
Average UV index
Hummelstown, 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, March, November and December (UV index 2).
Average cloud cover
Hummelstown, PA
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Hummelstown, PA
The months with the highest visibility are January, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are February, May, September and October (5mi).
Hummelstown, Pennsylvania, USA
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