Climate and monthly weather forecastGreat River, NY
Climate and monthly weather forecast
Weather in January
January, like December, in Great River, New York, is an icy winter month, with an average temperature varying between 30.2°F (-1°C) and 37.9°F (3.3°C). January, on average, is the coldest month, registering a high temperature of 37.9°F (3.3°C) and a low of 30.2°F (-1°C). Weather in January »Weather in February
February, the last month of the winter in Great River, is also an icy month, with an average temperature fluctuating between 39.7°F (4.3°C) and 31.3°F (-0.4°C). With the onset of February, a modest change to a still cold 39.7°F (4.3°C) from January's 37.9°F (3.3°C) is noted in high-temperature. Weather in February »Weather in March
March, the first month of the spring in Great River, is a frosty month, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 36.3°F (2.4°C). With the advent of March, Great River's high-temperatures adjust to a frosty 44.2°F (6.8°C), closely aligning with the preceding month. Weather in March »Weather in April
April in Great River, New York, is a cool spring month, with an average temperature varying between 45.1°F (7.3°C) and 52.3°F (11.3°C). The transition from March to April brings a subtle temperature rise, with average high-temperatures increasing from a frosty 44.2°F (6.8°C) to a fresh 52.3°F (11.3°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Great River, New York, with an average temperature varying between 61.2°F (16.2°C) and 54.3°F (12.4°C). The start of May signals a slight increase in the average high-temperature, moving from a cool 52.3°F (11.3°C) in April to a refreshing 61.2°F (16.2°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Great River, New York, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 70.7°F (21.5°C). Great River, New York, sees a rise in temperature during June, with average high-temperatures transitioning from an enjoyable 61.2°F (16.2°C) in May to an agreeable 70.7°F (21.5°C). Weather in June »Weather in July
July in Great River, New York, is a warm summer month, with temperature in the range of an average low of 71.6°F (22°C) and an average high of 77.9°F (25.5°C). Great River's weather in July presents a minor rise in the average high-temperature, moving from an agreeable 70.7°F (21.5°C) in June to a warm 77.9°F (25.5°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Great River, New York, with an average temperature fluctuating between 71.8°F (22.1°C) and 78.1°F (25.6°C). The warmest time of the year is August, with temperatures averaging a high of 78.1°F (25.6°C) and a low of 71.8°F (22.1°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Great River, New York, with an average temperature varying between 65.3°F (18.5°C) and 72.1°F (22.3°C). The transition into September involves a small decrease in the average high-temperature, dipping slightly from a warm 78.1°F (25.6°C) in August to an agreeable 72.1°F (22.3°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Great River, New York, with temperature in the range of an average high of 62.4°F (16.9°C) and an average low of 55.8°F (13.2°C). The transition into October indicates a reduction in the average high-temperature, down to a refreshing 62.4°F (16.9°C) from September's pleasant 72.1°F (22.3°C). Weather in October »Weather in November
November, the last month of the autumn in Great River, is also a fresh month, with temperature in the range of an average high of 52.3°F (11.3°C) and an average low of 45°F (7.2°C). A decrease in the average high-temperature is observed during November, shifting from a comfortable 62.4°F (16.9°C) in October to a cool 52.3°F (11.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Great River, New York, with an average temperature varying between 37.2°F (2.9°C) and 44.1°F (6.7°C). December witnesses a gentle descent in average high-temperature, descending from November's cool 52.3°F (11.3°C) to a chilly 44.1°F (6.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Great River, NY
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).
The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure
Great River, NY
- Average pressure in January:
30.04"Hg - Average pressure in February:
30.02"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Great River, NY
- Average wind speed in January:
13.8mph - Average wind speed in February:
13.3mph - Average wind speed in March:
12.9mph - Average wind speed in April:
11.9mph - Average wind speed in May:
10.1mph - Average wind speed in June:
9.3mph
- Average wind speed in July:
9mph - Average wind speed in August:
9mph - Average wind speed in September:
10.4mph - Average wind speed in October:
12.4mph - Average wind speed in November:
13mph - Average wind speed in December:
13.4mph
The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).
Average humidity
Great River, NY
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall
Great River, NY
- Average rainfall in January:
2.17" - Average rainfall in February:
2.32" - Average rainfall in March:
2.76" - Average rainfall in April:
2.95" - Average rainfall in May:
2.91" - Average rainfall in June:
2.8"
- Average rainfall in July:
3.62" - Average rainfall in August:
3.27" - Average rainfall in September:
2.48" - Average rainfall in October:
3.39" - Average rainfall in November:
2.44" - Average rainfall in December:
3.74"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days
Great River, NY
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
9.2 days - Average rainfall days in March:
10.9 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
17.7 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
14 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
12.3 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
Great River, NY
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").
Average snowfall days
Great River, NY
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
4.6 days - Average snowfall days in March:
2.5 days - Average snowfall days in April:
0.2 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:
0.5 days - Average snowfall days in December:
2.4 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature
Great River, NY
The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight / Average sunshine
Great River, NY
- 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 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 30min - 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:
5h and 12min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 36min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 42min - Average sunshine in September:
9h and 12min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Great River, NY
- Average sunshine days in January:
18.4 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
15.8 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
16.9 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).
Average UV index
Great River, NY
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover
Great River, NY
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Great River, NY
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





