Climate and monthly weather forecastBlack River, NY
Climate and monthly weather forecast
Weather in January
January, the same as December, in Black River, New York, is a freezing cold winter month, with an average temperature ranging between max 26.1°F (-3.3°C) and min 14.4°F (-9.8°C). January is the coldest month, with an average high-temperature of 26.1°F (-3.3°C) and an average low-temperature of 14.4°F (-9.8°C). Weather in January »Weather in February
February, the last month of the winter in Black River, is another freezing cold month, with an average temperature varying between 28°F (-2.2°C) and 16.2°F (-8.8°C). The onset of February manifests an average high-temperature of a still freezing cold 28°F (-2.2°C), demonstrating a minor variation from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Black River, New York, with an average temperature ranging between min 25.2°F (-3.8°C) and max 37°F (2.8°C). Black River's weather in March presents a rise in the average high-temperature, moving from a freezing cold 28°F (-2.2°C) in February to a wintry 37°F (2.8°C). Weather in March »Weather in April
April in Black River, New York, is a fresh spring month, with an average temperature fluctuating between 50.5°F (10.3°C) and 35.4°F (1.9°C). The start of April signals an increase in the average high-temperature, moving from an icy 37°F (2.8°C) in March to a cool 50.5°F (10.3°C). Weather in April »Weather in May
May, the last month of the spring in Black River, is an enjoyable month, with an average temperature varying between 46.4°F (8°C) and 63.5°F (17.5°C). With the beginning of May, Black River's average high-temperature sees an increase, transitioning from a fresh 50.5°F (10.3°C) in April to an enjoyable 63.5°F (17.5°C). Weather in May »Weather in June
June, the first month of the summer in Black River, is an agreeable month, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 69.8°F (21°C). Black River in June denotes a subtle temperature transition, adjusting from an average high of a refreshing 63.5°F (17.5°C) in May to a pleasant 69.8°F (21°C). Weather in June »Weather in July
July is a warm summer month in Black River, New York, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 60.3°F (15.7°C). The warmest month is July, with an average high-temperature of 76.6°F (24.8°C) and an average low-temperature of 60.3°F (15.7°C). Weather in July »Weather in August
August, the last month of the summer in Black River, is another warm month, with an average temperature ranging between max 75.7°F (24.3°C) and min 59.2°F (15.1°C). The ushering in of August brings an average high-temperature of a still moderately hot 75.7°F (24.3°C), closely mirroring the 76.6°F (24.8°C) of July. Weather in August »Weather in September
September, the first month of the autumn in Black River, is also an agreeable month, with an average temperature ranging between max 69.1°F (20.6°C) and min 52.9°F (11.6°C). With the onset of September, the average high-temperature subtly recedes from August's warm 75.7°F (24.3°C) to an agreeable 69.1°F (20.6°C). Weather in September »Weather in October
October, the same as September, in Black River, New York, is another mild autumn month, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 56.1°F (13.4°C). With the onset of October, Black River experiences a modest temperature adjustment, with the average high-temperature receding from an agreeable 69.1°F (20.6°C) in September to a moderate 56.1°F (13.4°C). Weather in October »Weather in November
November, the last month of the autumn in Black River, is another chilly month, with an average temperature fluctuating between 42.8°F (6°C) and 32.2°F (0.1°C). Black River's progression into November includes a drop in the average high-temperature, from a refreshing 56.1°F (13.4°C) in October to a frosty 42.8°F (6°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Black River, New York, with temperature in the range of an average low of 23.2°F (-4.9°C) and an average high of 32.2°F (0.1°C). A moderate decline in the average high-temperature is seen during December, decreasing from a frosty 42.8°F (6°C) in November to a cold 32.2°F (0.1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Black River, NY
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (26.1°F).
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure
Black River, NY
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.02"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Black River, NY
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.7mph - Average wind speed in April:
9.8mph - Average wind speed in May:
7.9mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
7mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.9mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity
Black River, NY
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and September (77%).
Average rainfall
Black River, NY
- Average rainfall in January:
2.76" - Average rainfall in February:
2.56" - Average rainfall in March:
2.56" - Average rainfall in April:
3.27" - Average rainfall in May:
3.07" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.56" - Average rainfall in August:
2.56" - Average rainfall in September:
1.81" - Average rainfall in October:
3.54" - Average rainfall in November:
2.8" - Average rainfall in December:
3.27"
The wettest month (with the highest rainfall) is October (3.54").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days
Black River, NY
- Average rainfall days in January:
7.7 days - Average rainfall days in February:
7 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
16.5 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
16.2 days - Average rainfall days in September:
13 days - Average rainfall days in October:
17.7 days - Average rainfall days in November:
12.6 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is October (17.7 days).
The month with the least rainy days is February (7 days).
Average snowfall
Black River, NY
- Average snowfall in January:
10.47" - Average snowfall in February:
9.76" - Average snowfall in March:
5.87" - Average snowfall in April:
2.05" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (10.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Black River, NY
- Average snowfall days in January:
19.6 days - Average snowfall days in February:
18.4 days - Average snowfall days in March:
14.7 days - Average snowfall days in April:
5.3 days - Average snowfall days in May:
0.8 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 days - Average snowfall days in November:
8.7 days - Average snowfall days in December:
15.9 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Black River, NY
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
2h and 42min - Average sunshine in February:
2h and 42min - Average sunshine in March:
4h and 36min - Average sunshine in April:
7h and 6min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 6min - Average sunshine in September:
9h and 12min - Average sunshine in October:
4h and 42min - Average sunshine in November:
4h and 24min - Average sunshine in December:
3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days
Black River, NY
- Average sunshine days in January:
7.3 days - Average sunshine days in February:
6.7 days - Average sunshine days in March:
8.9 days - Average sunshine days in April:
10 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11.2 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
11.1 days - Average sunshine days in November:
12.3 days - Average sunshine days in December:
7.9 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is February (6.7 days).
Average UV index
Black River, NY
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Black River, NY
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Black River, NY
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





