Climate and monthly weather forecastGreenfield, PA
Climate and monthly weather forecast
Weather in January
January, like December, in Greenfield, Pennsylvania, is a wintry winter month, with temperature in the range of an average high of 33.4°F (0.8°C) and an average low of 20.8°F (-6.2°C). In Greenfield, the lowest average temperatures are observed in January, with a high of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Greenfield, Pennsylvania, with an average temperature fluctuating between 23.4°F (-4.8°C) and 37.8°F (3.2°C). As Greenfield steps into February, the average high-temperature holds at a still icy 37.8°F (3.2°C), hinting at a minor fluctuation from the prior month. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Greenfield, Pennsylvania, with an average temperature varying between 31.5°F (-0.3°C) and 47.8°F (8.8°C). Observing a rise in March, the average high-temperature goes from February's wintry 37.8°F (3.2°C) to a chilly 47.8°F (8.8°C). Weather in March »Weather in April
April is a mild spring month in Greenfield, Pennsylvania, with an average temperature fluctuating between 60.6°F (15.9°C) and 41.7°F (5.4°C). As April begins, there is an increase in the average high-temperature, moving from a frosty 47.8°F (8.8°C) in March to a moderate 60.6°F (15.9°C). Weather in April »Weather in May
May, the last month of the spring in Greenfield, is a pleasant month, with temperature in the range of an average low of 51.4°F (10.8°C) and an average high of 72.3°F (22.4°C). The shift into May is marked by a rise in the average high-temperature, moving from April's mild 60.6°F (15.9°C) to a pleasant 72.3°F (22.4°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Greenfield, Pennsylvania, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 58.6°F (14.8°C). June introduces a marginal temperature uplift, with average high-temperatures adjusting from May's pleasant 72.3°F (22.4°C) to a warm 79.3°F (26.3°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Greenfield, Pennsylvania, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 83.8°F (28.8°C). In Greenfield, July is identified by the highest average temperatures, reaching a peak of 83.8°F (28.8°C) and a low of 63°F (17.2°C). For most parts of July, the heat index is evaluated at a tropical 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Greenfield, is another warm month, with an average temperature fluctuating between 82.2°F (27.9°C) and 61.2°F (16.2°C). August's arrival brings an average high-temperature of a still warm 82.2°F (27.9°C), demonstrating subtle variation from the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Greenfield, Pennsylvania, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 75.7°F (24.3°C). The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 82.2°F (27.9°C) in August to a still warm 75.7°F (24.3°C). Weather in September »Weather in October
October, like September, in Greenfield, Pennsylvania, is another comfortable autumn month, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 62.1°F (16.7°C). October involves a decrease in temperature, down from a moderately hot 75.7°F (24.3°C) in September to a comfortable 62.1°F (16.7°C). Weather in October »Weather in November
November, the last month of the autumn in Greenfield, is another chilly month, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 49.3°F (9.6°C). A shift in the average high-temperature occurs in November, reducing from a refreshing 62.1°F (16.7°C) in October to a frosty 49.3°F (9.6°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Greenfield, Pennsylvania, with temperature in the range of an average low of 28.2°F (-2.1°C) and an average high of 39.7°F (4.3°C). Transition into December marks a drop in the average high-temperature, moving from a chilly 49.3°F (9.6°C) in November to a cold 39.7°F (4.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Greenfield, 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 (33.4°F).
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure
Greenfield, 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:
29.97"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:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"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
Greenfield, PA
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.4mph - Average wind speed in May:
6mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Greenfield, PA
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (73%).
Average rainfall
Greenfield, PA
- Average rainfall in January:
1.65" - Average rainfall in February:
1.85" - Average rainfall in March:
1.97" - Average rainfall in April:
2.8" - Average rainfall in May:
3.07" - Average rainfall in June:
2.76"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days
Greenfield, PA
- Average rainfall days in January:
8.5 days - Average rainfall days in February:
8.9 days - Average rainfall days in March:
12.4 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
18.4 days - Average rainfall days in June:
16.7 days
- Average rainfall days in July:
17.7 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14.3 days - Average rainfall days in November:
10 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.5 days).
Average snowfall
Greenfield, PA
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Greenfield, PA
- Average snowfall days in January:
16.3 days - Average snowfall days in February:
11.9 days - Average snowfall days in March:
7.3 days - Average snowfall days in April:
1.8 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:
0.3 days - Average snowfall days in November:
3.9 days - Average snowfall days in December:
11.8 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Greenfield, PA
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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:
2h and 54min - Average sunshine in February:
3h and 30min - Average sunshine in March:
5h and 18min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 24min - Average sunshine in October:
5h and 12min - Average sunshine in November:
4h and 42min - Average sunshine in December:
3h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days
Greenfield, PA
- Average sunshine days in January:
9.7 days - Average sunshine days in February:
9.5 days - Average sunshine days in March:
11.9 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
11.7 days - Average sunshine days in August:
13 days - Average sunshine days in September:
14 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
16.4 days - Average sunshine days in December:
11 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (9.5 days).
Average UV index
Greenfield, PA
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Greenfield, PA
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Greenfield, PA
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).





