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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 West Decatur, Pennsylvania, is another subzero cold winter month, with an average temperature fluctuating between 18°F (-7.8°C) and 30.6°F (-0.8°C). January, marked by an average high-temperature of 30.6°F (-0.8°C) and a low-temperature of 18°F (-7.8°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a cold month in West Decatur, Pennsylvania, with an average temperature varying between 20.3°F (-6.5°C) and 34.5°F (1.4°C). February's presence marks an average high-temperature of a cold 34.5°F (1.4°C), subtly varied from January's 30.6°F (-0.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in West Decatur, Pennsylvania, with an average temperature varying between 44.1°F (6.7°C) and 28°F (-2.2°C). West Decatur's weather in March shows a rise in the average high-temperature, moving up from February's cold 34.5°F (1.4°C) to a frosty 44.1°F (6.7°C). Weather in March »
Weather in April
April is a refreshing spring month in West Decatur, Pennsylvania, with an average temperature ranging between min 37.9°F (3.3°C) and max 56.5°F (13.6°C). As March transitions into April, a change in temperatures is observed, with average highs moving from a frosty 44.1°F (6.7°C) to a mild 56.5°F (13.6°C). Weather in April »
Weather in May
May, the last month of the spring in West Decatur, is a pleasant month, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 68.5°F (20.3°C). The average high-temperature increases in May, moving from a mild 56.5°F (13.6°C) in April to an agreeable 68.5°F (20.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in West Decatur, Pennsylvania, with an average temperature ranging between max 76.3°F (24.6°C) and min 54.5°F (12.5°C). The shift from May to June introduces a subtle increase in the average high-temperature, moving from an agreeable 68.5°F (20.3°C) to a warm 76.3°F (24.6°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in West Decatur, Pennsylvania, with an average temperature fluctuating between 81.3°F (27.4°C) and 59.2°F (15.1°C). During the warmest month, July, temperatures average a high of 81.3°F (27.4°C) and a low of 59.2°F (15.1°C). In July, the average heat index is evaluated at a hot 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in West Decatur, Pennsylvania, with an average temperature ranging between min 56.8°F (13.8°C) and max 79.3°F (26.3°C). Shifting into August, West Decatur records an average high-temperature of a still moderately hot 79.3°F (26.3°C), presenting minor fluctuations compared to the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in West Decatur, Pennsylvania, with an average temperature ranging between max 72.3°F (22.4°C) and min 52°F (11.1°C). The average high-temperature slightly decreases in September, shifting from a moderately hot 79.3°F (26.3°C) in August to a pleasant 72.3°F (22.4°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in West Decatur, Pennsylvania, with an average temperature fluctuating between 42.6°F (5.9°C) and 59°F (15°C). A moderate decline in the average high-temperature is seen during October, decreasing from an agreeable 72.3°F (22.4°C) in September to a moderate 59°F (15°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in West Decatur, Pennsylvania, with temperature in the range of an average high of 45.9°F (7.7°C) and an average low of 31.8°F (-0.1°C). The onset of November entails a temperature shift, as the average high-temperature decreases from a refreshing 59°F (15°C) in October to a chilly 45.9°F (7.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in West Decatur, Pennsylvania, with an average temperature fluctuating between 36.3°F (2.4°C) and 25.9°F (-3.4°C). December indicates a shift in the average high-temperature, from November's chilly 45.9°F (7.7°C) to a cold 36.3°F (2.4°C). Weather in December »
Updated: Jul 26, 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 stands out as West Decatur's coldest month, with temperatures ranging between an average high of 30.6°F (-0.8°C) and a low of 18°F (-7.8°C).
How much does it rain?
In West Decatur, during the entire year, the rain falls for 159 days and collects up to 23.46" (596mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 18.3 days and typically aggregates up to 6.02" (153mm) of snow.
How much does it snow?
Throughout the year, there are 67.7 snowfall days, and 23.54" (598mm) of snow is accumulated.
What is the month with the least sunshine?
With an average of 3.4h of sunshine, January has the least sunshine of the year.
What is the most humid month?
The most humid month is February, with an average relative humidity of 85%.
When is Daylight Saving Time (DST) in West Decatur?
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 rainiest month?
May is the month with the most rainfall. Rain falls for 17.9 days and accumulates 2.87" (73mm) of precipitation.
What is the month with 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 West Decatur?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What are the warmest months?
July, noted for its average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 59.2°F (15.1°C), is considered the warmest month.
What is the least humid month?
With an average relative humidity of 76%, July is the least humid month.
What is the month with the most sunshine?
July and August, with an average of 9.9h of sunshine, are months with the most sunshine.
What is the driest month?
The month with the least rainfall is November, when the rain falls for 10.5 days and typically collects 1.42" (36mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
When is the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
West Decatur, 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 (30.6°F).
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure
West Decatur, 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:
29.98"Hg - Average pressure in May:
30.01"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:
30.13"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 (29.95"Hg).
Average wind speed
West Decatur, PA
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.2mph - Average wind speed in March:
7.8mph - Average wind speed in April:
8mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.3mph - 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 (5mph).
Average humidity
West Decatur, PA
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (76%).
Average rainfall
West Decatur, PA
- Average rainfall in January:
1.57" - Average rainfall in February:
1.69" - Average rainfall in March:
1.77" - Average rainfall in April:
2.72" - Average rainfall in May:
2.87" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.2" - Average rainfall in August:
1.57" - Average rainfall in September:
1.65" - Average rainfall in October:
2.17" - Average rainfall in November:
1.42" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days
West Decatur, PA
- Average rainfall days in January:
8.1 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
14.7 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
11.4 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (8.1 days).
Average snowfall
West Decatur, PA
- Average snowfall in January:
6.02" - Average snowfall in February:
5.71" - Average snowfall in March:
3.27" - Average snowfall in April:
1.02" - Average snowfall in May:
0.67" - Average snowfall in June:
0"
The month with the highest snowfall is January (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
West Decatur, PA
- Average snowfall days in January:
18.3 days - Average snowfall days in February:
13.8 days - Average snowfall days in March:
9.2 days - Average snowfall days in April:
3.3 days - Average snowfall days in May:
0.5 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:
1.5 days - Average snowfall days in November:
7.3 days - Average snowfall days in December:
13.8 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
West Decatur, 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 2min - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 3min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days
West Decatur, PA
- Average sunshine days in January:
9.7 days - Average sunshine days in February:
8.7 days - Average sunshine days in March:
12.1 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
11 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
12.5 days - Average sunshine days in August:
14.2 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
14.1 days - Average sunshine days in December:
10.5 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (8.7 days).
Average UV index
West Decatur, 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
West Decatur, PA
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility
West Decatur, PA
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
West Decatur, Pennsylvania, USA
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