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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 an icy winter month in Thornwood, Pennsylvania, with an average temperature ranging between min 20.3°F (-6.5°C) and max 33.3°F (0.7°C). January is the month that records the lowest temperatures, with averages ranging from a high of 33.3°F (0.7°C) to a low of 20.3°F (-6.5°C). Weather in January »
Weather in February
February, the last month of the winter in Thornwood, is also a wintry month, with temperature in the range of an average low of 23.2°F (-4.9°C) and an average high of 37.4°F (3°C). Thornwood observes an average high-temperature of a still cold 37.4°F (3°C) in February, barely different from 33.3°F (0.7°C) in January. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Thornwood, Pennsylvania, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 46.8°F (8.2°C). Entering March, Thornwood sees a temperature rise, with the average high-temperature advancing from February's wintry 37.4°F (3°C) to a frosty 46.8°F (8.2°C). Weather in March »
Weather in April
April in Thornwood, Pennsylvania, is a mild spring month, with temperature in the range of an average high of 59.5°F (15.3°C) and an average low of 40.6°F (4.8°C). Thornwood's weather in April presents a rise in the average high-temperature, moving from a frosty 46.8°F (8.2°C) in March to a mild 59.5°F (15.3°C). Weather in April »
Weather in May
May, the last month of the spring in Thornwood, is an agreeable month, with an average temperature ranging between min 50°F (10°C) and max 70.7°F (21.5°C). The rise of average high-temperatures is seen in May, with an increase from a moderate 59.5°F (15.3°C) in April to a pleasant 70.7°F (21.5°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Thornwood, Pennsylvania, with an average temperature varying between 77.4°F (25.2°C) and 56.5°F (13.6°C). Thornwood observes a slight ascent in average high-temperatures during June, adjusting from a pleasant 70.7°F (21.5°C) in May to a warm 77.4°F (25.2°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Thornwood, Pennsylvania, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 82°F (27.8°C). July is the warmest month, with the temperature often reaching an average high of 82°F (27.8°C) and an average low of 60.4°F (15.8°C). The heat index value for July is computed to be a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Thornwood, is another warm month, with an average temperature ranging between min 58.6°F (14.8°C) and max 80.6°F (27°C). August brings a marginal elevation to a still moderately hot 80.6°F (27°C) from July's 82°F (27.8°C) in Thornwood's average high-temperatures. Weather in August »
Weather in September
September, the first month of the autumn in Thornwood, is also a moderately hot month, with an average temperature fluctuating between 74.3°F (23.5°C) and 54.1°F (12.3°C). September marks a gentle change in average high-temperature, declining from August's 80.6°F (27°C) to a still warm 74.3°F (23.5°C). Weather in September »
Weather in October
October, like September, in Thornwood, Pennsylvania, is another refreshing autumn month, with temperature in the range of an average low of 44.8°F (7.1°C) and an average high of 61.3°F (16.3°C). October is characterized by a reduction in the average high-temperature, from a warm 74.3°F (23.5°C) in September to a refreshing 61.3°F (16.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Thornwood, is also a frosty month, with an average temperature varying between 33.6°F (0.9°C) and 48.9°F (9.4°C). Thornwood's progression into November involves a drop in the average high-temperature, receding from a comfortable 61.3°F (16.3°C) in October to a frosty 48.9°F (9.4°C). Weather in November »
Weather in December
December, the first month of the winter in Thornwood, is still a cold month, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 27.7°F (-2.4°C). Thornwood in December experiences a subtle temperature decline, with average high-temperatures reducing from a chilly 48.9°F (9.4°C) in November to a wintry 39.2°F (4°C). Weather in December »
Updated: Feb 13, 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 month is the coldest in Thornwood?
During the coldest month in Thornwood, January, temperatures average a high of 33.3°F (0.7°C) and a low of 20.3°F (-6.5°C).
What are the most humid months in Thornwood?
January and February, with an average relative humidity of 85%, are most humid months in Thornwood, Pennsylvania.
How many days does it rain in Thornwood?
Throughout the year, in Thornwood, Pennsylvania, there are 185.4 rainfall days, and 34.02" (864mm) of precipitation is accumulated.
When does it snow in Thornwood?
Months with snowfall are January through May, October through December.
What is the snowiest month in Thornwood?
The month with the most snowfall in Thornwood, Pennsylvania, is January, when snow falls for 17.3 days and typically aggregates up to 7.09" (180mm) of snow.
How much does it snow in Thornwood?
In Thornwood, during the entire year, snow falls for 63.2 days and aggregates up to 29.02" (737mm) of snow.
What is the month with the least sunshine in Thornwood?
January has the least sunshine of the year in Thornwood, Pennsylvania, with an average of 3h of sunshine.
When is the lowest UV index in Thornwood?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Thornwood.
When is Daylight Saving Time (DST) in Thornwood?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Thornwood, 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 in Thornwood?
The months with the lowest humidity in Thornwood, Pennsylvania, are April, July and August, with an average relative humidity of 77%.
What is the rainiest month in Thornwood?
May is the month with the most rainfall in Thornwood, Pennsylvania. Rain falls for 22 days and accumulates 3.66" (93mm) of precipitation.
When it does not snow in Thornwood?
In Thornwood, snow does not fall in June through September.
When are the longest days in Thornwood?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What are the warmest months in Thornwood?
July is the month when Thornwood's temperatures reach their peak, with averages of 82°F (27.8°C) and lows of 60.4°F (15.8°C).
What is the month with the highest UV index in Thornwood?
The month with the highest UV index is July, with an average maximum UV index of 6.
What month has the most sunshine in Thornwood?
August has the most sunshine of the year in Thornwood, with an average of 10h of sunshine.
What is the driest month in Thornwood?
The month with the least rainfall in Thornwood is November, when the rain falls for 12.1 days and typically collects 2.01" (51mm) of precipitation.
What is the month with the shortest days in Thornwood?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Thornwood, PA
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure
Thornwood, PA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"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 (29.95"Hg).
Average wind speed
Thornwood, PA
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.2mph - Average wind speed in March:
7.7mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.9mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Thornwood, PA
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall
Thornwood, PA
- Average rainfall in January:
2.68" - Average rainfall in February:
2.91" - Average rainfall in March:
2.91" - Average rainfall in April:
3.23" - Average rainfall in May:
3.66" - Average rainfall in June:
3.03"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days
Thornwood, PA
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
10.4 days - Average rainfall days in March:
14.5 days - Average rainfall days in April:
18.2 days - Average rainfall days in May:
22 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
19.1 days - Average rainfall days in August:
17.4 days - Average rainfall days in September:
15.3 days - Average rainfall days in October:
16.2 days - Average rainfall days in November:
12.1 days - Average rainfall days in December:
13.1 days
The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is January (9.8 days).
Average snowfall
Thornwood, PA
- Average snowfall in January:
7.09" - Average snowfall in February:
6.06" - Average snowfall in March:
5.08" - Average snowfall in April:
1.1" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Thornwood, PA
- Average snowfall days in January:
17.3 days - Average snowfall days in February:
13.9 days - Average snowfall days in March:
9.2 days - Average snowfall days in April:
2.9 days - Average snowfall days in May:
0.4 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:
0.6 days - Average snowfall days in November:
6.1 days - Average snowfall days in December:
12.8 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Thornwood, 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:
3h - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 3min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 4min
The month with the most sunshine is August (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 3h).
Average sunshine days
Thornwood, PA
- Average sunshine days in January:
6.5 days - Average sunshine days in February:
6.8 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
9.8 days - Average sunshine days in May:
8 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
11.7 days - Average sunshine days in September:
13.3 days - Average sunshine days in October:
12.4 days - Average sunshine days in November:
13.5 days - Average sunshine days in December:
9.7 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.5 days).
Average UV index
Thornwood, PA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Thornwood, PA
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility
Thornwood, PA
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Thornwood, Pennsylvania, USA
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