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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 Altonah, Pennsylvania, with an average temperature ranging between max 34°F (1.1°C) and min 21.6°F (-5.8°C). January, characterized by an average high temperature of 34°F (1.1°C) and a low temperature of 21.6°F (-5.8°C), is generally the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Altonah, is also an icy month, with an average temperature fluctuating between 37.8°F (3.2°C) and 23.4°F (-4.8°C). The unfolding of February shows an average high-temperature of a still cold 37.8°F (3.2°C), indicating a slight variance from January's 34°F (1.1°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Altonah, Pennsylvania, with an average temperature fluctuating between 30°F (-1.1°C) and 46°F (7.8°C). The beginning of March signals a minor rise in the average high-temperature, moving from an icy 37.8°F (3.2°C) in February to a chilly 46°F (7.8°C). Weather in March »
Weather in April
April is a refreshing spring month in Altonah, Pennsylvania, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 58.6°F (14.8°C). In Altonah, the onset of April comes with an increased average high-temperature, moving from March's chilly 46°F (7.8°C) to a refreshing 58.6°F (14.8°C). Weather in April »
Weather in May
May, the last month of the spring in Altonah, is a pleasant month, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 50.5°F (10.3°C). Entering May, Altonah sees a temperature rise, with the average high-temperature advancing from April's mild 58.6°F (14.8°C) to a pleasant 69.6°F (20.9°C). Weather in May »
Weather in June
June, the first month of the summer in Altonah, is a warm month, with an average temperature varying between 77.4°F (25.2°C) and 57.9°F (14.4°C). As June arrives, Altonah's weather shows a minor increase in high-temperatures, edging from May's pleasant 69.6°F (20.9°C) to a warm 77.4°F (25.2°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Altonah, Pennsylvania, with an average temperature fluctuating between 83.5°F (28.6°C) and 63.5°F (17.5°C). The average temperatures reach their apex in July, averaging 83.5°F (28.6°C) at the high end and 63.5°F (17.5°C) at the low end. In July, the heat index is computed to be a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Altonah, is also a moderately hot month, with temperature in the range of an average low of 61.5°F (16.4°C) and an average high of 81°F (27.2°C). With August's arrival, Altonah's weather records an average high-temperature of a still warm 81°F (27.2°C), marking little difference from July's 83.5°F (28.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Altonah, Pennsylvania, with an average temperature varying between 74.3°F (23.5°C) and 55°F (12.8°C). The onset of September entails a subtle temperature shift, as the average high-temperature eases from 81°F (27.2°C) in August to a still warm 74.3°F (23.5°C). Weather in September »
Weather in October
October, like September, in Altonah, Pennsylvania, is another refreshing autumn month, with temperature in the range of an average high of 62.1°F (16.7°C) and an average low of 46.2°F (7.9°C). The onset of October entails a temperature shift, as the average high-temperature decreases from a warm 74.3°F (23.5°C) in September to a refreshing 62.1°F (16.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Altonah, Pennsylvania, with an average temperature ranging between min 35.4°F (1.9°C) and max 50°F (10°C). November brings a decrease in the average high-temperature, falling from October's refreshing 62.1°F (16.7°C) to a fresh 50°F (10°C). Weather in November »
Weather in December
December, the first month of the winter in Altonah, is also a wintry month, with an average temperature varying between 40.1°F (4.5°C) and 28.8°F (-1.8°C). In Altonah, the average high-temperature in December decreases from a cool 50°F (10°C) in November to an icy 40.1°F (4.5°C). Weather in December »
Updated: Aug 2, 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?
Altonah experiences its lowest temperatures in January, with an average peak of 34°F (1.1°C) and a low of 21.6°F (-5.8°C).
How many days does it rain?
Throughout the year, there are 153 rainfall days, and 26.81" (681mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
In Altonah, during the entire year, snow falls for 26.7 days and aggregates up to 14.49" (368mm) of snow.
When is the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month?
The most humid month is February, with an average relative humidity of 82%.
What is the month with the least sunshine?
With an average of 4.5h 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 5 days and accumulates 4.13" (105mm) 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 least humid month?
April and July, with an average relative humidity of 76%, are the least humid months.
What are the months with the highest UV index?
The months with the highest UV index in Altonah, Pennsylvania, are May through July, with an average maximum UV index of 6.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 0min of daylight.
What is the warmest month in Altonah?
The warmest time of the year is July, with temperatures averaging a high of 83.5°F (28.6°C) and a low of 63.5°F (17.5°C).
What is the wettest month?
The month with the most rainfall is July, when the rain falls for 16.2 days and typically aggregates up to 2.91" (74mm) of precipitation.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.4h of sunshine.
What is the driest month?
September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.57" (40mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Altonah, 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 (34°F).
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Altonah, PA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.07"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:
29.96"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:
30.12"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Altonah, PA
- Average wind speed in January:
8mph - Average wind speed in February:
7.9mph - Average wind speed in March:
8.1mph - Average wind speed in April:
7.9mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Altonah, PA
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall
Altonah, PA
- Average rainfall in January:
1.81" - Average rainfall in February:
1.69" - Average rainfall in March:
2.17" - Average rainfall in April:
2.44" - Average rainfall in May:
2.72" - Average rainfall in June:
2.4"
- Average rainfall in July:
2.91" - Average rainfall in August:
2.76" - Average rainfall in September:
1.57" - Average rainfall in October:
2.17" - Average rainfall in November:
1.93" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is July (2.91").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days
Altonah, PA
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
8.4 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.2 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
12.4 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall
Altonah, PA
- Average snowfall in January:
3.23" - Average snowfall in February:
3.7" - Average snowfall in March:
4.13" - Average snowfall in April:
0.16" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Altonah, PA
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
5 days - Average snowfall days in April:
0.4 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:
0.7 days - Average snowfall days in December:
4.8 days
The months with the highest number of snowfall days are January and February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Altonah, 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 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - 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 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days
Altonah, PA
- Average sunshine days in January:
18 days - Average sunshine days in February:
13.9 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
11 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
17.2 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11 days).
Average UV index
Altonah, PA
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Altonah, PA
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility
Altonah, PA
The months with the highest visibility are April, June and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September, October and December (5mi).
Altonah, Pennsylvania, USA
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