Monthly weather forecast and climate
Rotterdam, NY

January, like December, is another subzero cold winter month in Rotterdam, New York, with average temperature varying between 28.6°F (-1.9°C) and 16.9°F (-8.4°C). January is the coldest month, with an average high-temperature of 28.6°F (-1.9°C) and an average low-temperature of 16.9°F (-8.4°C). Weather in January »

The last month of the winter, February, is another freezing cold month in Rotterdam, New York, with average temperature fluctuating between 31.5°F (-0.3°C) and 18.3°F (-7.6°C). In February, the average high-temperature is relatively the same as in January - a still freezing cold 31.5°F (-0.3°C). Weather in February »

March, the first month of the spring, in Rotterdam, is a cold month, with average temperature fluctuating between 25.7°F (-3.5°C) and 40.6°F (4.8°C). In Rotterdam, the average high-temperature in March rises, from a freezing cold 31.5°F (-0.3°C) in February, to a cold 40.6°F (4.8°C). Weather in March »

April in Rotterdam, New York, is a fresh spring month, with average temperature varying between 36.1°F (2.3°C) and 54.3°F (12.4°C). In April, the average high-temperature increases, from a wintry 40.6°F (4.8°C) in March, to a fresh 54.3°F (12.4°C). Weather in April »

The last month of the spring, May, is a pleasant month in Rotterdam, New York, with average temperature ranging between min 47.3°F (8.5°C) and max 68°F (20°C). In May, the average high-temperature increases, from a cool 54.3°F (12.4°C) in April, to an agreeable 68°F (20°C). Weather in May »

The first month of the summer, June, is a warm month in Rotterdam, New York, with average temperature fluctuating between 54°F (12.2°C) and 75°F (23.9°C). In June, the average high-temperature marginally rises, from a pleasant 68°F (20°C) in May, to a warm 75°F (23.9°C). Weather in June »

July, the same as June, is a moderately hot summer month in Rotterdam, New York, with average temperature varying between 81.3°F (27.4°C) and 59.7°F (15.4°C). The warmest month is July, with an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 59.7°F (15.4°C). The average heat index is estimated at a hot 86.2°F (30.1°C). Weather in July »

August, the last month of the summer, in Rotterdam, is another warm month, with average temperature fluctuating between 58.1°F (14.5°C) and 79.2°F (26.2°C). In August, the average high-temperature is essentially the same as in July - a still warm 79.2°F (26.2°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Rotterdam, New York, with average temperature ranging between max 71.4°F (21.9°C) and min 51.6°F (10.9°C). In Rotterdam, the average high-temperature slightly decreases, from a moderately hot 79.2°F (26.2°C) in August, to a pleasant 71.4°F (21.9°C). Weather in September »

October, the same as September, in Rotterdam, New York, is a moderate autumn month, with average temperature varying between 43.2°F (6.2°C) and 58.1°F (14.5°C). In October, the average high-temperature decreases, from an agreeable 71.4°F (21.9°C) in September, to a moderate 58.1°F (14.5°C). Weather in October »

The last month of the autumn, November, is also a frosty month in Rotterdam, New York, with temperature in the range of an average low of 32°F (0°C) and an average high of 45.5°F (7.5°C). In Rotterdam, the average high-temperature in November decreases, from a mild 58.1°F (14.5°C) in October, to a frosty 45.5°F (7.5°C). Weather in November »

December, the first month of the winter, in Rotterdam, is also a wintry month, with average temperature varying between 34.2°F (1.2°C) and 24.6°F (-4.1°C). In December, the average high-temperature decreases, from a chilly 45.5°F (7.5°C) in November, to a cold 34.2°F (1.2°C). Weather in December »

What is the coldest month in Rotterdam?

January is the coldest month in Rotterdam, with an average high-temperature of 28.6°F (-1.9°C) and an average low-temperature of 16.9°F (-8.4°C).

How much does it rain in Rotterdam?

Throughout the year, there are 137.4 rainfall days, and 25.75" (654mm) of precipitation is accumulated.

What is the driest month in Rotterdam?

The month with the least rainfall is January when the rain falls for 6.2 days and typically collects 1.57" (40mm) of precipitation.

When does it snow in Rotterdam?

Months with snowfall in Rotterdam are January through May, October through December.

How many days does it snow in Rotterdam?

In Rotterdam, during the entire year, snow falls for 36.5 days, and aggregates up to 22.56" (573mm) of snow.

What is the most humid month in Rotterdam?

February is the most humid month in Rotterdam, with an average relative humidity of 83%.

What is the snowiest month in Rotterdam?

The month with the most snowfall is February when snow falls for 9.5 days and typically aggregates up to 6.02" (153mm) of snow.

What is the month with the least sunshine in Rotterdam?

The month with the least sunshine is February, with an average of 3.8h of sunshine.

What is the least humid month in Rotterdam?

April is the least humid month, with an average relative humidity of 74%.

What is the wettest month in Rotterdam?

The month with the most rainfall in Rotterdam is May when the rain falls for 16 days and typically aggregates up to 2.83" (72mm) of precipitation.

What are the months with the highest UV index in Rotterdam?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

When it does not snow in Rotterdam?

In Rotterdam snow does not fall in June through September.

When are the longest days in Rotterdam?

The month with the longest days in Rotterdam, New York, is June, with an average of 15.3h of daylight.

What is the warmest month in Rotterdam?

July is the warmest month in Rotterdam, with an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 59.7°F (15.4°C).

What month has the most sunshine in Rotterdam?

The month with the most sunshine is August, with an average of 10.5h of sunshine.

What is the month with the shortest days in Rotterdam?

The month with the shortest days is December, with an average of 9.1h of daylight.

What is the month with the lowest UV index in Rotterdam?

December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature - Rotterdam, NY
Average pressure - Rotterdam, NY

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.92").

Average wind speed - Rotterdam, NY

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average rainfall - Rotterdam, NY
Average rainfall days - Rotterdam, NY

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6.2 days).

Average snowfall - Rotterdam, NY
Average snowfall days - Rotterdam, NY

The month with the highest number of snowfall days is February (9.5 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Rotterdam, NY

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

The month with the most sunshine is August (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 3.8h).

Average sunshine days - Rotterdam, NY

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is April (12.6 days).

Average visibility - Rotterdam, NY

Months with the highest visibility are April, June, July, August, October, November and December (6mi).
Months with the lowest visibility are January, February, March, May and September (5mi).