Climate and monthly weather forecastJonestown, PA
Climate and monthly weather forecast
Weather in January
January, like December, in Jonestown, Pennsylvania, is another cold winter month, with an average temperature fluctuating between 33.6°F (0.9°C) and 21.2°F (-6°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 33.6°F (0.9°C) and a low of 21.2°F (-6°C). Weather in January »Weather in February
February, the last month of the winter in Jonestown, is another cold month, with an average temperature fluctuating between 37.4°F (3°C) and 22.8°F (-5.1°C). As January transitions into February, the average high-temperature rests at a still icy 37.4°F (3°C), maintaining a close resemblance to the previous month. Weather in February »Weather in March
March, the first month of the spring in Jonestown, is a frosty month, with an average temperature varying between 46.9°F (8.3°C) and 30.7°F (-0.7°C). An escalation in the average high-temperature is seen with the onset of March, moving from a cold 37.4°F (3°C) in February to a chilly 46.9°F (8.3°C). Weather in March »Weather in April
April in Jonestown, Pennsylvania, is a moderate spring month, with an average temperature varying between 58.8°F (14.9°C) and 40.6°F (4.8°C). With the onset of April, Jonestown sees a temperature rise, with the average high-temperature moving from March's chilly 46.9°F (8.3°C) to a moderate 58.8°F (14.9°C). Weather in April »Weather in May
May, the last month of the spring in Jonestown, is a pleasant month, with an average temperature fluctuating between 68.7°F (20.4°C) and 50.7°F (10.4°C). May's onset brings a temperature rise, moving from a refreshing 58.8°F (14.9°C) in April to an agreeable 68.7°F (20.4°C). Weather in May »Weather in June
June, the first month of the summer in Jonestown, is a moderately hot month, with an average temperature ranging between min 57.7°F (14.3°C) and max 76.6°F (24.8°C). June's onset brings a subtle temperature rise, moving from a pleasant 68.7°F (20.4°C) in May to a warm 76.6°F (24.8°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Jonestown, Pennsylvania, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 82°F (27.8°C). July stands out as Jonestown's warmest month, with temperatures ranging between an average high of 82°F (27.8°C) and a low of 62.4°F (16.9°C). In July, the average heat index is estimated at a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Jonestown, Pennsylvania, with an average temperature varying between 60.6°F (15.9°C) and 79.7°F (26.5°C). Jonestown's weather, upon August's arrival, documents an average high-temperature of a still moderately hot 79.7°F (26.5°C), nearly identical to the prior month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Jonestown, Pennsylvania, with an average temperature ranging between min 54.9°F (12.7°C) and max 73.2°F (22.9°C). Jonestown's progression into September involves a gentle drop in the average high-temperature, from a moderately hot 79.7°F (26.5°C) in August to an agreeable 73.2°F (22.9°C). Weather in September »Weather in October
October, like September, in Jonestown, Pennsylvania, is another refreshing autumn month, with an average temperature varying between 61.7°F (16.5°C) and 45.3°F (7.4°C). Onset of October witnesses a reduction in the average high-temperature, falling from a pleasant 73.2°F (22.9°C) in September to a comfortable 61.7°F (16.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Jonestown, Pennsylvania, with an average temperature varying between 49.5°F (9.7°C) and 34.7°F (1.5°C). As November arrives, Jonestown's weather displays a decrease in high-temperatures, transitioning from October's comfortable 61.7°F (16.5°C) to a chilly 49.5°F (9.7°C). Weather in November »Weather in December
December, the first month of the winter in Jonestown, is also a wintry month, with an average temperature varying between 28.8°F (-1.8°C) and 39.9°F (4.4°C). Setting in of December comes with a decrease in the average high-temperature, moving from a frosty 49.5°F (9.7°C) in November to an icy 39.9°F (4.4°C). Weather in December »Updated: Aug 8, 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
In Jonestown, January is the coldest month, with temperatures averaging a high of 33.6°F (0.9°C) and a low of 21.2°F (-6°C).
In Jonestown, during the entire year, the rain falls for 166.3 days and collects up to 34.53" (877mm) of precipitation.
Months with snowfall are January through May, October through December.
The month with the most snowfall is January, when snow falls for 10.1 days and typically aggregates up to 5.08" (129mm) of snow.
In Jonestown, Pennsylvania, during the entire year, snow falls for 32.4 days and aggregates up to 16.69" (424mm) of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
February, May, June and October, with an average relative humidity of 81%, are most humid months.
With an average of 4.3h of sunshine, February has the least sunshine of the year.
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.
With an average relative humidity of 76%, April is the least humid month.
The wettest months in Jonestown are May and July, with an average 3.58" (91mm) of rainfall.
June through September are months without snowfall.
June has the longest days of the year, with an average of 15h and 0min of daylight.
With an average maximum UV index of 6, June is the month with the highest UV index.
July is the month when Jonestown experiences its warmest temperatures, averaging a high of 82°F (27.8°C) and a low of 62.4°F (16.9°C).
With an average of 10.2h of sunshine, July has the most sunshine of the year.
The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 2.32" (59mm) of precipitation.
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Jonestown, PA
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.6°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 (21.2°F).
Average pressure
Jonestown, PA
- Average pressure in January:
30.09"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
Jonestown, PA
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.6mph - 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:
7.8mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Jonestown, PA
The months with the highest relative humidity are February, May, June and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Jonestown, PA
- Average rainfall in January:
2.52" - Average rainfall in February:
2.4" - Average rainfall in March:
2.52" - Average rainfall in April:
3.15" - Average rainfall in May:
3.58" - Average rainfall in June:
2.8"
- Average rainfall in July:
3.58" - Average rainfall in August:
3.54" - Average rainfall in September:
2.32" - Average rainfall in October:
2.95" - Average rainfall in November:
2.48" - Average rainfall in December:
2.68"
The wettest months (with the highest rainfall) are May and July (3.58").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days
Jonestown, PA
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
18.6 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
11 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall
Jonestown, PA
The month with the highest snowfall is January (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Jonestown, PA
- Average snowfall days in January:
10.1 days - Average snowfall days in February:
8.2 days - Average snowfall days in March:
5.7 days - Average snowfall days in April:
0.7 days - Average snowfall days in May:
0.2 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:
1.5 days - Average snowfall days in December:
5.9 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Jonestown, 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:
9h and 54min - Average daylight in December:
9h and 18min
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:
4h and 24min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 0min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 12min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days
Jonestown, PA
- Average sunshine days in January:
14.7 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
11.2 days - Average sunshine days in May:
10.1 days - Average sunshine days in June:
11.5 days
- Average sunshine days in July:
11 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
14.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.1 days).
Average UV index
Jonestown, PA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Jonestown, PA
The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
Jonestown, PA
The months with the highest visibility are March, April, June, July and November (6mi).
The months with the lowest visibility are January, February, May, August, September, October and December (5mi).
