Climate and monthly weather forecastPortville, NY
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Portville, New York, with temperature in the range of an average low of 15.8°F (-9°C) and an average high of 27.9°F (-2.3°C). January, having an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 15.8°F (-9°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Portville, New York, with an average temperature fluctuating between 30.7°F (-0.7°C) and 17.6°F (-8°C). February welcomes an average high-temperature of a still subzero cold 30.7°F (-0.7°C), not much different from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a cold month in Portville, New York, with temperature in the range of an average high of 40.1°F (4.5°C) and an average low of 24.4°F (-4.2°C). With the onset of March, Portville sees a temperature rise, with the average high-temperature moving from February's freezing cold 30.7°F (-0.7°C) to a wintry 40.1°F (4.5°C). Weather in March »Weather in April
April is a fresh spring month in Portville, New York, with temperature in the range of an average high of 52.5°F (11.4°C) and an average low of 34.3°F (1.3°C). With the onset of April, Portville's weather sees a temperature rise, transitioning from a wintry 40.1°F (4.5°C) in March to a cool 52.5°F (11.4°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Portville, New York, with an average temperature fluctuating between 45.1°F (7.3°C) and 66°F (18.9°C). In May, the average high-temperature increases from a fresh 52.5°F (11.4°C) in April to a comfortable 66°F (18.9°C). Weather in May »Weather in June
June, the first month of the summer in Portville, is an agreeable month, with an average temperature fluctuating between 51.8°F (11°C) and 73°F (22.8°C). Portville in June experiences a slight uptick in the average high-temperature, adjusting from May's comfortable 66°F (18.9°C) to an agreeable 73°F (22.8°C). Weather in June »Weather in July
July in Portville, New York, is a moderately hot summer month, with an average temperature fluctuating between 78.4°F (25.8°C) and 55.9°F (13.3°C). Portville's July weather reaches an average high of 78.4°F (25.8°C) and an average low of 55.9°F (13.3°C), making it the warmest month. Weather in July »Weather in August
August, the last month of the summer in Portville, is also a moderately hot month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 76.3°F (24.6°C). The transition into August is marked with an average high-temperature of a still warm 76.3°F (24.6°C), showing an insignificant shift from July's 78.4°F (25.8°C). Weather in August »Weather in September
September, the first month of the autumn in Portville, is also an agreeable month, with temperature in the range of an average low of 49.5°F (9.7°C) and an average high of 69.6°F (20.9°C). The onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 76.3°F (24.6°C) in August to a pleasant 69.6°F (20.9°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Portville, New York, with an average temperature fluctuating between 56.7°F (13.7°C) and 41.2°F (5.1°C). With October's arrival, Portville's weather changes as the average high-temperature falls from a pleasant 69.6°F (20.9°C) in September to a refreshing 56.7°F (13.7°C). Weather in October »Weather in November
November, the last month of the autumn in Portville, is another chilly month, with temperature in the range of an average high of 43.5°F (6.4°C) and an average low of 30°F (-1.1°C). A decrease in the average high-temperature is observed during November, shifting from a mild 56.7°F (13.7°C) in October to a chilly 43.5°F (6.4°C). Weather in November »Weather in December
December, the first month of the winter in Portville, is still a cold month, with an average temperature varying between 33.8°F (1°C) and 23.9°F (-4.5°C). During the transition into December, Portville observes a decrease in the average high-temperature, falling from a chilly 43.5°F (6.4°C) in November to a wintry 33.8°F (1°C). Weather in December »Updated: Jul 7, 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
With an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 15.8°F (-9°C), January is the coldest month.
January and February, with an average relative humidity of 89%, are most humid months.
In Portville, during the entire year, the rain falls for 168.9 days and collects up to 30" (762mm) of precipitation.
January through May, October through December are months with snowfall.
In Portville, during the entire year, snow falls for 92.6 days and aggregates up to 43.58" (1107mm) of snow.
The month with the least sunshine is January, with an average of 2.3h of sunshine.
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index.
February is the month with the most snowfall. Snow falls for 19 days and accumulates 10.63" (270mm) of snow.
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.
April is the month with the most rainfall. Rain falls for 16.6 days and accumulates 3.35" (85mm) of precipitation.
The months with the lowest humidity are May through July, with an average relative humidity of 79%.
The months with the highest UV index are May through August, with an average maximum UV index of 5.
June through September are months without snowfall in Portville.
The month with the longest days is June, with an average of 15h and 12min of daylight.
The month of July sees the average highest temperatures, reaching 78.4°F (25.8°C) at the peak and 55.9°F (13.3°C) at the low.
With an average of 9.4h of sunshine, July has the most sunshine of the year.
The month with the least rainfall is September, when the rain falls for 15.4 days and typically collects 1.93" (49mm) of precipitation.
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Portville, NY
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure
Portville, NY
- Average pressure in January:
30.07"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"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Portville, NY
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.3mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity
Portville, NY
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are May, June and July (79%).
Average rainfall
Portville, NY
- Average rainfall in January:
2.2" - Average rainfall in February:
2.36" - Average rainfall in March:
2.24" - Average rainfall in April:
3.35" - Average rainfall in May:
2.68" - Average rainfall in June:
2.64"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.32" - Average rainfall in September:
1.93" - Average rainfall in October:
3.03" - Average rainfall in November:
2.05" - Average rainfall in December:
2.52"
The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days
Portville, NY
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
7.1 days - Average rainfall days in March:
12.2 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
18.3 days
- Average rainfall days in July:
18.5 days - Average rainfall days in August:
18.5 days - Average rainfall days in September:
15.4 days - Average rainfall days in October:
17.5 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (6.8 days).
Average snowfall
Portville, NY
- Average snowfall in January:
8.15" - Average snowfall in February:
10.63" - Average snowfall in March:
5.35" - Average snowfall in April:
3.11" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (10.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Portville, NY
- Average snowfall days in January:
20.2 days - Average snowfall days in February:
19 days - Average snowfall days in March:
13.7 days - Average snowfall days in April:
6.5 days - Average snowfall days in May:
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:
2.4 days - Average snowfall days in November:
11 days - Average snowfall days in December:
18.8 days
The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Portville, NY
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
2h and 18min - Average sunshine in February:
2h and 36min - Average sunshine in March:
4h and 48min - Average sunshine in April:
6h and 36min - Average sunshine in May:
8h and 6min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
9h and 24min - Average sunshine in August:
9h and 18min - Average sunshine in September:
8h and 0min - Average sunshine in October:
4h and 24min - Average sunshine in November:
3h and 48min - Average sunshine in December:
2h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days
Portville, NY
- Average sunshine days in January:
6.7 days - Average sunshine days in February:
5.9 days - Average sunshine days in March:
8.5 days - Average sunshine days in April:
8.3 days - Average sunshine days in May:
10.1 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
9.5 days - Average sunshine days in September:
12.4 days - Average sunshine days in October:
10.7 days - Average sunshine days in November:
10.6 days - Average sunshine days in December:
7.8 days
The month with the most sunshine days is September (12.4 days).
The month with the least sunshine days is February (5.9 days).
Average UV index
Portville, NY
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Portville, NY
The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility
Portville, NY
The months with the highest visibility are March, April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, August, September and December (4mi).
