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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, the same as December, is another cold winter month in Sylmar, Pennsylvania, with an average temperature varying between 36.7°F (2.6°C) and 24.6°F (-4.1°C). Sylmar reaches its lowest average temperatures in January, measuring 36.7°F (2.6°C) at the peak and 24.6°F (-4.1°C) at the lowest. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Sylmar, Pennsylvania, with an average temperature ranging between max 40.3°F (4.6°C) and min 27°F (-2.8°C). The start of February marks an average high-temperature of a still wintry 40.3°F (4.6°C), hardly distinguishable from the conditions in January. Weather in February »
Weather in March
March, the first month of the spring in Sylmar, is a frosty month, with an average temperature ranging between min 33.4°F (0.8°C) and max 48.7°F (9.3°C). A slight uplift in the average high-temperature marks March, adjusting from February's icy 40.3°F (4.6°C) to a chilly 48.7°F (9.3°C). Weather in March »
Weather in April
April in Sylmar, Pennsylvania, is a comfortable spring month, with an average temperature fluctuating between 60.8°F (16°C) and 43.5°F (6.4°C). An increase in the average high-temperature marks April, moving from March's frosty 48.7°F (9.3°C) to a comfortable 60.8°F (16°C). Weather in April »
Weather in May
May, the last month of the spring in Sylmar, is a pleasant month, with an average temperature ranging between min 53.2°F (11.8°C) and max 70.5°F (21.4°C). May sees a rise in the average high-temperature, climbing from an enjoyable 60.8°F (16°C) in April to a pleasant 70.5°F (21.4°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Sylmar, Pennsylvania, with temperature in the range of an average low of 60.8°F (16°C) and an average high of 78.4°F (25.8°C). June's arrival sees a mild rise in the average high-temperature, transitioning from May's pleasant 70.5°F (21.4°C) to a warm 78.4°F (25.8°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Sylmar, Pennsylvania, with an average temperature ranging between min 65.8°F (18.8°C) and max 83.8°F (28.8°C). July proves to be the warmest month, recording an average peak temperature of 83.8°F (28.8°C) and a minimum temperature of 65.8°F (18.8°C). For most parts of July, the heat index is calculated to be a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Sylmar, is another warm month, with an average temperature varying between 81.3°F (27.4°C) and 64°F (17.8°C). August observes an average high-temperature of a still warm 81.3°F (27.4°C), marking an insignificant difference from July's 83.8°F (28.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Sylmar, Pennsylvania, with an average temperature varying between 75.2°F (24°C) and 58.1°F (14.5°C). A modest decline in the average high-temperature is seen during September, decreasing from 81.3°F (27.4°C) in August to a still moderately hot 75.2°F (24°C). Weather in September »
Weather in October
October, like September, in Sylmar, Pennsylvania, is another refreshing autumn month, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 48.4°F (9.1°C). October implies a gentle temperature shift, with average high-temperatures reducing from September's warm 75.2°F (24°C) to a comfortable 63.3°F (17.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Sylmar, is another cool month, with temperature in the range of an average high of 51.6°F (10.9°C) and an average low of 37.4°F (3°C). November is characterized by a reduction in the average high-temperature, from an enjoyable 63.3°F (17.4°C) in October to a cool 51.6°F (10.9°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Sylmar, Pennsylvania, with an average temperature ranging between min 31.3°F (-0.4°C) and max 43.2°F (6.2°C). The transition to December results in a modest reduction in average high-temperature, moving from a cool 51.6°F (10.9°C) in November to a frosty 43.2°F (6.2°C). Weather in December »
Updated: Jul 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
What part of the year is the coldest?
January, with average temperatures reaching a high of 36.7°F (2.6°C) and a low of 24.6°F (-4.1°C), is the coldest month.
What are the least humid months?
The months with the lowest humidity in Sylmar are January, March, April and November, with an average relative humidity of 76%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 6 days and typically collects 0.91" (23mm) of precipitation.
How many days does it rain?
In Sylmar, during the entire year, the rain falls for 130.4 days and collects up to 16.3" (414mm) of precipitation.
When does it snow?
Months with snowfall are January through April, November and December.
How many days does it snow?
Throughout the year, there are 16.2 snowfall days, and 5.35" (136mm) of snow is accumulated.
What are the months with the lowest UV index in Sylmar?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the month with the least sunshine?
With an average of 4.8h of sunshine, February has the least sunshine of the year.
When does it snow the most?
March is the month with the most snowfall. Snow falls for 3.3 days and accumulates 1.61" (41mm) 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 most humid month?
The most humid month in Sylmar is May, with an average relative humidity of 81%.
When it does not snow?
In Sylmar, snow does not fall in May through October.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
The month with the longest days in Sylmar is June, with an average of 14h and 54min of daylight.
What are the warmest months?
In Sylmar, the average highest temperatures are observed in July, with a high of 83.8°F (28.8°C) and a low of 65.8°F (18.8°C).
What month has the most sunshine?
With an average of 10.6h of sunshine, July has the most sunshine of the year.
What is the rainiest month?
The month with the most rainfall is August, when the rain falls for 13.8 days and typically aggregates up to 2.36" (60mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 24min of daylight, December has the shortest days of the year.
Average temperature
Sylmar, PA
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.7°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure
Sylmar, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"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:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"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
Sylmar, PA
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.9mph - 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:
6.3mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.3mph
The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Sylmar, PA
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, March, April and November (76%).
Average rainfall
Sylmar, PA
- Average rainfall in January:
0.91" - Average rainfall in February:
0.98" - Average rainfall in March:
1.14" - Average rainfall in April:
1.1" - Average rainfall in May:
1.65" - Average rainfall in June:
1.61"
- Average rainfall in July:
2.09" - Average rainfall in August:
2.36" - Average rainfall in September:
1.1" - Average rainfall in October:
1.14" - Average rainfall in November:
1.02" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days
Sylmar, PA
- Average rainfall days in January:
6 days - Average rainfall days in February:
7 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
14 days
- Average rainfall days in July:
14.9 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
6.6 days - Average rainfall days in December:
8.6 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6 days).
Average snowfall
Sylmar, PA
The month with the highest snowfall is March (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Sylmar, PA
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.6 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Sylmar, 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:
14h and 5min
- 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: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 2min - 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 5min - Average sunshine in December:
5h and 0min
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 48min).
Average sunshine days
Sylmar, PA
- Average sunshine days in January:
20.6 days - Average sunshine days in February:
17.5 days - Average sunshine days in March:
17.5 days - Average sunshine days in April:
15.3 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
13.2 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
21.8 days - Average sunshine days in December:
19.6 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (13.2 days).
Average UV index
Sylmar, 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
Sylmar, 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 32).
Average visibility
Sylmar, PA
The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).
Sylmar, Pennsylvania, USA
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