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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, in Tri Mills, Pennsylvania, is another subzero cold winter month, with temperature in the range of an average low of 19°F (-7.2°C) and an average high of 31.8°F (-0.1°C). January stands out as Tri Mills's coldest month, with temperatures ranging between an average high of 31.8°F (-0.1°C) and a low of 19°F (-7.2°C). Weather in January »
Weather in February
February, the last month of the winter in Tri Mills, is a cold month, with an average temperature varying between 35.2°F (1.8°C) and 21°F (-6.1°C). Tri Mills experiences an average high-temperature of a wintry 35.2°F (1.8°C) in February, subtly different from January's 31.8°F (-0.1°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Tri Mills, Pennsylvania, with an average temperature ranging between min 28.8°F (-1.8°C) and max 44.4°F (6.9°C). March's arrival signals an increase in average high-temperatures, moving from February's wintry 35.2°F (1.8°C) to a chilly 44.4°F (6.9°C). Weather in March »
Weather in April
April in Tri Mills, Pennsylvania, is a refreshing spring month, with an average temperature fluctuating between 38.3°F (3.5°C) and 56.5°F (13.6°C). Tri Mills sees an increase in average high-temperatures during April, moving from a frosty 44.4°F (6.9°C) in March to a mild 56.5°F (13.6°C). Weather in April »
Weather in May
May, the last month of the spring in Tri Mills, is a pleasant month, with an average temperature ranging between max 68.4°F (20.2°C) and min 48.7°F (9.3°C). In May, the meteorological conditions change with the average high-temperature moving from a refreshing 56.5°F (13.6°C) in April to a pleasant 68.4°F (20.2°C). Weather in May »
Weather in June
June, the first month of the summer in Tri Mills, is a warm month, with an average temperature fluctuating between 75.7°F (24.3°C) and 55°F (12.8°C). Entering June, Tri Mills notices a subtle temperature elevation, with the average high-temperature advancing from May's agreeable 68.4°F (20.2°C) to a warm 75.7°F (24.3°C). Weather in June »
Weather in July
July, like June, in Tri Mills, Pennsylvania, is another warm summer month, with an average temperature varying between 59.5°F (15.3°C) and 81.3°F (27.4°C). The month of July sees the highest average temperatures, reaching 81.3°F (27.4°C) at the peak and 59.5°F (15.3°C) at the low. July's mean heat index is calculated to be a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Tri Mills, is another warm month, with an average temperature varying between 57.7°F (14.3°C) and 78.6°F (25.9°C). The introduction of August sees an average high-temperature of a still moderately hot 78.6°F (25.9°C), hardly deviating from July. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Tri Mills, Pennsylvania, with an average temperature varying between 52.2°F (11.2°C) and 72.5°F (22.5°C). Tri Mills's progression into September involves a gentle drop in the average high-temperature, from a warm 78.6°F (25.9°C) in August to an agreeable 72.5°F (22.5°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Tri Mills, Pennsylvania, with an average temperature fluctuating between 43.9°F (6.6°C) and 59.9°F (15.5°C). In Tri Mills, the beginning of October is marked by a lowered average high-temperature, shifting from September's pleasant 72.5°F (22.5°C) to a moderate 59.9°F (15.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Tri Mills, Pennsylvania, with an average temperature ranging between min 32.9°F (0.5°C) and max 47.3°F (8.5°C). Observing a mild shift, the average high-temperature during November reduces from October's refreshing 59.9°F (15.5°C) to a frosty 47.3°F (8.5°C). Weather in November »
Weather in December
December, the first month of the winter in Tri Mills, is also a wintry month, with an average temperature varying between 37.6°F (3.1°C) and 27°F (-2.8°C). The onset of December introduces a moderate change in Tri Mills's weather, with average high-temperatures falling from November's frosty 47.3°F (8.5°C) to an icy 37.6°F (3.1°C). Weather in December »
Updated: Aug 28, 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 is the coldest time of year?
January, noted for its average high-temperature of 31.8°F (-0.1°C) and an average low-temperature of 19°F (-7.2°C), is considered the coldest month.
How many days does it rain?
Throughout the year, there are 166.3 rainfall days, and 31.06" (789mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 12.9 days and accumulates 5.94" (151mm) of snow.
How many days does it snow?
Throughout the year, there are 47.6 snowfall days, and 22.91" (582mm) of snow is accumulated.
What is the most humid month?
February is the most humid month, with an average relative humidity of 83%.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 3.8h of sunshine.
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?
April is the least humid month, with an average relative humidity of 77%.
What is the wettest month?
The wettest months are April and May, with an average 2.99" (76mm) of rainfall.
When is the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 5.
When it does not snow?
In Tri Mills, Pennsylvania, snow does not fall in June through September.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What month is the hottest?
July is the warmest month, exhibiting average temperatures of 81.3°F (27.4°C) at the peak and 59.5°F (15.3°C) at the base.
What month has the most sunshine in Tri Mills?
The month with the most sunshine is July, with an average of 10.2h of sunshine.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 2.05" (52mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
When is the lowest UV index in Tri Mills?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Tri Mills, PA
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°F).
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure
Tri Mills, 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:
29.98"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:
30.07"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.09"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
Tri Mills, PA
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.5mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Tri Mills, PA
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall
Tri Mills, PA
- Average rainfall in January:
2.44" - Average rainfall in February:
2.32" - Average rainfall in March:
2.56" - Average rainfall in April:
2.99" - Average rainfall in May:
2.99" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.68" - Average rainfall in September:
2.05" - Average rainfall in October:
2.68" - Average rainfall in November:
2.36" - Average rainfall in December:
2.52"
The wettest months (with the highest rainfall) are April and May (2.99").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days
Tri Mills, PA
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
17.1 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
15.1 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
14 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
12.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.3 days).
Average snowfall
Tri Mills, PA
- Average snowfall in January:
5.94" - Average snowfall in February:
5.83" - Average snowfall in March:
4.41" - Average snowfall in April:
0.35" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Tri Mills, PA
- Average snowfall days in January:
12.9 days - Average snowfall days in February:
12.1 days - Average snowfall days in March:
7.8 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.3 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:
0.2 days - Average snowfall days in November:
3.1 days - Average snowfall days in December:
9.4 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Tri Mills, 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 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 1min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days
Tri Mills, PA
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
9.8 days - Average sunshine days in March:
11.3 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
12.9 days - Average sunshine days in November:
16.3 days - Average sunshine days in December:
12.5 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.8 days).
Average UV index
Tri Mills, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Tri Mills, PA
The months with the most cloud cover are February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility
Tri Mills, PA
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Tri Mills, Pennsylvania, USA
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