Climate and monthly weather forecastDallastown, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Dallastown, Pennsylvania, with an average temperature varying between 23.4°F (-4.8°C) and 35.8°F (2.1°C). Dallastown, Pennsylvania, records the coldest temperatures in January, averaging a high of 35.8°F (2.1°C) and a low of 23.4°F (-4.8°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Dallastown, Pennsylvania, with an average temperature varying between 39.4°F (4.1°C) and 25.2°F (-3.8°C). February's beginning signals an average high-temperature of a still cold 39.4°F (4.1°C), barely different from January's 35.8°F (2.1°C). Weather in February »Weather in March
March, the first month of the spring in Dallastown, is a frosty month, with an average temperature ranging between min 32.9°F (0.5°C) and max 48.2°F (9°C). With the start of March, the average high-temperature marginally shifts from February's cold 39.4°F (4.1°C) to a frosty 48.2°F (9°C). Weather in March »Weather in April
April is a mild spring month in Dallastown, Pennsylvania, with an average temperature varying between 42.8°F (6°C) and 60.4°F (15.8°C). In April, the meteorological conditions change with the average high-temperature moving from a frosty 48.2°F (9°C) in March to a moderate 60.4°F (15.8°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Dallastown, Pennsylvania, with an average temperature fluctuating between 70.3°F (21.3°C) and 52.9°F (11.6°C). The onset of May brings a temperature shift, with the average high-temperature moving from a refreshing 60.4°F (15.8°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 Dallastown, is a warm month, with an average temperature varying between 77.9°F (25.5°C) and 60.4°F (15.8°C). The arrival of June signals a slight increase in the average high-temperature, moving from an agreeable 70.3°F (21.3°C) in May to a warm 77.9°F (25.5°C). Weather in June »Weather in July
July, like June, in Dallastown, Pennsylvania, is another warm summer month, with an average temperature ranging between max 83.5°F (28.6°C) and min 65.5°F (18.6°C). July, noted for its average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 65.5°F (18.6°C), is considered the warmest month. In July, the heat index is appraised at a hot 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Dallastown, is also a moderately hot month, with an average temperature varying between 81°F (27.2°C) and 63.9°F (17.7°C). Dallastown marks the arrival of August with an average high-temperature of a still warm 81°F (27.2°C), hardly different from July's 83.5°F (28.6°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Dallastown, Pennsylvania, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 57.2°F (14°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 81°F (27.2°C) in August to a still warm 75°F (23.9°C). Weather in September »Weather in October
October, like September, in Dallastown, Pennsylvania, is another enjoyable autumn month, with an average temperature fluctuating between 47.5°F (8.6°C) and 63.1°F (17.3°C). In October, the average high-temperature goes from a moderately hot 75°F (23.9°C) in September to a comfortable 63.1°F (17.3°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Dallastown, Pennsylvania, with an average temperature ranging between min 36.3°F (2.4°C) and max 50.9°F (10.5°C). Setting in of November comes with a decrease in the average high-temperature, moving from a comfortable 63.1°F (17.3°C) in October to a fresh 50.9°F (10.5°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Dallastown, Pennsylvania, with temperature in the range of an average low of 30.4°F (-0.9°C) and an average high of 41.9°F (5.5°C). The commencement of December indicates a shift in the average high-temperature, receding from November's fresh 50.9°F (10.5°C) to an icy 41.9°F (5.5°C). Weather in December »Updated: Aug 15, 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 stands out as Dallastown's coldest month, with temperatures ranging between an average high of 35.8°F (2.1°C) and a low of 23.4°F (-4.8°C).
Throughout the year, there are 139.8 rainfall days, and 22.95" (583mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
Throughout the year, there are 18.4 snowfall days, and 9.13" (232mm) of snow is accumulated.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
February is the month with the least rainfall. Rain falls for 6.7 days and accumulates 1.26" (32mm) of precipitation.
With an average of 4.7h of sunshine, February has the least sunshine of the year.
The months with the lowest humidity are March, April and November, with an average relative humidity of 76%.
The month with the most snowfall is March, when snow falls for 4.5 days and typically aggregates up to 3.23" (82mm) of snow.
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 81%, May is the most humid month.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Dallastown.
June through September are months without snowfall.
With an average of 15h and 0min of daylight, June has the longest days of the year.
With average high and low temperatures of 83.5°F (28.6°C) and 65.5°F (18.6°C) respectively, July is Dallastown's warmest month.
July has the most sunshine of the year, with an average of 10.6h of sunshine.
The month with the most rainfall is August, when the rain falls for 15 days and typically aggregates up to 2.8" (71mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Dallastown, PA
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.8°F).
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Dallastown, 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:
29.99"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:
30.14"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 (29.94"Hg).
Average wind speed
Dallastown, PA
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.7mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8.2mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Dallastown, PA
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are March, April and November (76%).
Average rainfall
Dallastown, PA
- Average rainfall in January:
1.38" - Average rainfall in February:
1.26" - Average rainfall in March:
1.69" - Average rainfall in April:
1.89" - Average rainfall in May:
2.24" - Average rainfall in June:
2.01"
- Average rainfall in July:
2.36" - Average rainfall in August:
2.8" - Average rainfall in September:
1.61" - Average rainfall in October:
2.09" - Average rainfall in November:
2.01" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days
Dallastown, PA
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
15.9 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
15 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
8.7 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.3 days).
Average snowfall
Dallastown, PA
- Average snowfall in January:
2.13" - Average snowfall in February:
1.65" - Average snowfall in March:
3.23" - Average snowfall in April:
0.2" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Dallastown, PA
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
5 days - Average snowfall days in March:
4.5 days - Average snowfall days in April:
0.6 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:
0.8 days - Average snowfall days in December:
3 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Dallastown, 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 54min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 24min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Dallastown, PA
- Average sunshine days in January:
20.4 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
14 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
13.1 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
18.6 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is May (11.7 days).
Average UV index
Dallastown, 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
Dallastown, PA
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Dallastown, PA
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
