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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
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Mendenhall, Pennsylvania, with temperature in the range of an average low of -4°C and an average high of 2.7°C. The coldest time of the year is January, with temperatures averaging a high of 2.7°C and a low of -4°C. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Mendenhall, Pennsylvania, with temperature in the range of an average high of 4.6°C and an average low of -2.7°C. The onset of February notes an average high-temperature of a still wintry 4.6°C, subtly shifted from January's 2.7°C. Weather in February »
Weather in March
March, the first month of the spring in Mendenhall, is a frosty month, with temperature in the range of an average low of 1.1°C and an average high of 9.4°C. In Mendenhall, the average high-temperature in March slightly increases from a wintry 4.6°C in February to a chilly 9.4°C. Weather in March »
Weather in April
April is a comfortable spring month in Mendenhall, Pennsylvania, with an average temperature fluctuating between 6.8°C and 16.1°C. The commencement of April sees a shift in the average high-temperature, moving from a frosty 9.4°C in March to an enjoyable 16.1°C. Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Mendenhall, Pennsylvania, with an average temperature varying between 12.2°C and 21.7°C. The arrival of May brings an increase in high-temperatures, moving from a refreshing 16.1°C in April to a pleasant 21.7°C. Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Mendenhall, Pennsylvania, with an average temperature fluctuating between 26.1°C and 16.6°C. June's onset brings a minor rise in the average high-temperature, moving from a pleasant 21.7°C in May to a moderately hot 26.1°C. Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Mendenhall, Pennsylvania, with an average temperature varying between 19.5°C and 29.3°C. July, with average temperatures reaching a high of 29.3°C and a low of 19.5°C, is the warmest month. The heat index for July is calculated to be a sweltering 35°C. Weather in July »
Weather in August
August, the last month of the summer in Mendenhall, is also a moderately hot month, with an average temperature fluctuating between 18.7°C and 28°C. August brings an average high-temperature of a still moderately hot 28°C, nearly identical to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Mendenhall, Pennsylvania, with an average temperature varying between 24.3°C and 15.2°C. As September arrives, Mendenhall's weather displays a minor decrease in high-temperatures, transitioning from August's 28°C to a still moderately hot 24.3°C. Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Mendenhall, Pennsylvania, with an average temperature fluctuating between 9.6°C and 17.5°C. A moderate decline in the average high-temperature is seen during October, decreasing from a warm 24.3°C in September to a refreshing 17.5°C. Weather in October »
Weather in November
November, the last month of the autumn in Mendenhall, is another cool month, with temperature in the range of an average low of 3.3°C and an average high of 11.1°C. In Mendenhall, the average high-temperature in November drops from an enjoyable 17.5°C in October to a cool 11.1°C. Weather in November »
Weather in December
December, the first month of the winter in Mendenhall, is still a chilly month, with temperature in the range of an average low of -0.1°C and an average high of 6.1°C. December brings a minor decrease, with the average high-temperature reducing from a cool 11.1°C in November to a chilly 6.1°C. Weather in December »
Updated: Jul 18, 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?
With its average high temperature of 2.7°C and a low of -4°C, January is regarded as the coldest month.
How many days does it rain?
In Mendenhall, during the entire year, the rain falls for 135 days and collects up to 451mm of precipitation.
When does it snow?
Months with snowfall are January through May, November and December.
How much does it snow?
In Mendenhall, during the entire year, snow falls for 16.6 days and aggregates up to 139mm of snow.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 4.8h of sunshine.
When does it snow the most?
March is the month with the most snowfall. Snow falls for 3.7 days and accumulates 38mm 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.
What is the least humid month?
With an average relative humidity of 74%, April is the least humid month in Mendenhall.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Mendenhall.
When it does not snow?
In Mendenhall, snow does not fall in June through October.
When are the longest days?
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?
The warmest period is July, when temperatures fluctuate between an average high of 29.3°C and a low of 19.5°C.
What month has the most sunshine in Mendenhall?
With an average of 10.7h of sunshine, July has the most sunshine of the year.
What is the wettest month?
The month with the most rainfall is August, when the rain falls for 14.8 days and typically aggregates up to 60mm of precipitation.
What is the most humid month?
With an average relative humidity of 79%, October is the most humid month.
What is the driest month?
The month with the least rainfall is November, when the rain falls for 7.4 days and typically collects 27mm of precipitation.
What is the month with the shortest days in Mendenhall?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Mendenhall, PA
The warmest month (with the highest average high temperature) is July (29.3°C).
The month with the lowest average high temperature is January (2.7°C).
The month with the highest average low temperature is July (19.5°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure
Mendenhall, PA
- Average pressure in January:
1019mbar - Average pressure in February:
1018mbar - Average pressure in March:
1018.3mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1016.4mbar - Average pressure in June:
1013.9mbar
- Average pressure in July:
1014.6mbar - Average pressure in August:
1015.6mbar - Average pressure in September:
1017.8mbar - Average pressure in October:
1017mbar - Average pressure in November:
1020.2mbar - Average pressure in December:
1019.3mbar
The month with the highest atmospheric pressure is November (1020.2mbar).
The month with the lowest atmospheric pressure is June (1013.9mbar).
Average wind speed
Mendenhall, PA
- Average wind speed in January:
13.9km/h - Average wind speed in February:
13.8km/h - Average wind speed in March:
13.9km/h - Average wind speed in April:
13.6km/h - Average wind speed in May:
10.8km/h - Average wind speed in June:
10.1km/h
- Average wind speed in July:
8.6km/h - Average wind speed in August:
8.5km/h - Average wind speed in September:
9.3km/h - Average wind speed in October:
11.5km/h - Average wind speed in November:
12.3km/h - Average wind speed in December:
13km/h
The windiest months (with the highest average wind speed) are January and March (13.9km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity
Mendenhall, PA
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Mendenhall, PA
The wettest month (with the highest rainfall) is August (60mm).
The driest month (with the least rainfall) is November (27mm).
Average rainfall days
Mendenhall, PA
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
7.9 days - Average rainfall days in March:
10.9 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
10 days - Average rainfall days in November:
7.4 days - Average rainfall days in December:
9.4 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (6.6 days).
Average snowfall
Mendenhall, PA
The month with the highest snowfall is March (38mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days
Mendenhall, PA
- Average snowfall days in January:
5.2 days - Average snowfall days in February:
4.1 days - Average snowfall days in March:
3.7 days - Average snowfall days in April:
0.3 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:
0.7 days - Average snowfall days in December:
2.4 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Mendenhall, 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:
5h and 0min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 3min - 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 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Mendenhall, PA
- Average sunshine days in January:
19.8 days - Average sunshine days in February:
16.5 days - Average sunshine days in March:
16.6 days - Average sunshine days in April:
15.3 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
13.1 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
19 days - Average sunshine days in November:
21 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (12.8 days).
Average UV index
Mendenhall, PA
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Mendenhall, PA
The months with the most cloud cover are February, March and May (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Mendenhall, PA
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (9km).
The months with the lowest visibility are May and September (8km).