Monthly weather forecast and climate
Derby, NY

January, like December, is a freezing cold winter month in Derby, New York, with average temperature varying between 28.8°F (-1.8°C) and 18.9°F (-7.3°C). With an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 18.9°F (-7.3°C), January is the coldest month. Weather in January »

February, the last month of the winter, in Derby, is another freezing cold month, with average temperature ranging between max 31.1°F (-0.5°C) and min 19.8°F (-6.8°C). In Derby, the average high-temperature is relatively the same as in January - a still subzero cold 31.1°F (-0.5°C). Weather in February »

March, the first month of the spring, in Derby, is a wintry month, with average temperature varying between 26.8°F (-2.9°C) and 39.7°F (4.3°C). In Derby, New York, the average high-temperature in March marginally rises, from a subzero cold 31.1°F (-0.5°C) in February, to a wintry 39.7°F (4.3°C). Weather in March »

April is a fresh spring month in Derby, New York, with average temperature ranging between max 51.4°F (10.8°C) and min 36.1°F (2.3°C). In April, the average high-temperature increases, from a wintry 39.7°F (4.3°C) in March, to a fresh 51.4°F (10.8°C). Weather in April »

May, the last month of the spring, in Derby, is a comfortable month, with average temperature varying between 64.2°F (17.9°C) and 47.7°F (8.7°C). In Derby, the average high-temperature in May rises, from a fresh 51.4°F (10.8°C) in April, to an enjoyable 64.2°F (17.9°C). Weather in May »

The first month of the summer, June, is a pleasant month in Derby, New York, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 55.4°F (13°C). In June, the average high-temperature marginally rises, from an enjoyable 64.2°F (17.9°C) in May, to an agreeable 71.2°F (21.8°C). Weather in June »

July is a moderately hot summer month in Derby, New York, with average temperature ranging between min 61.3°F (16.3°C) and max 77.2°F (25.1°C). July is the warmest month, with an average high-temperature of 77.2°F (25.1°C) and an average low-temperature of 61.3°F (16.3°C). Weather in July »

August, the last month of the summer, in Derby, is another warm month, with average temperature ranging between max 75.9°F (24.4°C) and min 60.4°F (15.8°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 75.9°F (24.4°C). Weather in August »

The first month of the autumn, September, is still a pleasant month in Derby, New York, with average temperature ranging between min 54.7°F (12.6°C) and max 70.2°F (21.2°C). In September, the average high-temperature marginally drops, from a moderately hot 75.9°F (24.4°C) in August, to an agreeable 70.2°F (21.2°C). Weather in September »

October, like September, is another mild autumn month in Derby, New York, with average temperature fluctuating between 57.9°F (14.4°C) and 45.5°F (7.5°C). In October, the average high-temperature drops, from a pleasant 70.2°F (21.2°C) in September, to a moderate 57.9°F (14.4°C). Weather in October »

November, the last month of the autumn, in Derby, is another chilly month, with average temperature varying between 34.2°F (1.2°C) and 45.1°F (7.3°C). In Derby, the average high-temperature drops, from a mild 57.9°F (14.4°C) in October, to a frosty 45.1°F (7.3°C). Weather in November »

December, the first month of the winter, in Derby, is also a wintry month, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 35.1°F (1.7°C). In Derby, the average high-temperature drops, from a frosty 45.1°F (7.3°C) in November, to a wintry 35.1°F (1.7°C). Weather in December »

What is the coldest month in Derby?

The coldest month in Derby is January, with an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 18.9°F (-7.3°C).

How many days does it rain in Derby?

Throughout the year, in Derby, there are 160.5 rainfall days, and 24.17" (614mm) of precipitation is accumulated.

What is the driest month in Derby?

January is the month with the least rainfall in Derby. Rain falls for 7.7 days and accumulates 1.54" (39mm) of precipitation.

When does it snow in Derby?

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

How many days does it snow in Derby?

In Derby, New York, during the entire year, snow falls for 62.9 days, and aggregates up to 19.65" (499mm) of snow.

What is the month with the least sunshine in Derby?

January has the least sunshine of the year, with an average of 2.4h of sunshine.

When is the lowest UV index in Derby?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the most humid month in Derby?

With an average relative humidity of 87%, February is the most humid month.

When does it snow the most in Derby?

The month with the most snowfall is February when snow falls for 13.8 days and typically aggregates up to 5.43" (138mm) of snow.

When it does not snow in Derby?

June through September are months without snowfall.

When are the longest days in Derby?

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

What is the warmest month in Derby?

With an average high-temperature of 77.2°F (25.1°C) and an average low-temperature of 61.3°F (16.3°C), July is the warmest month.

What is the wettest month in Derby?

July is the month with the most rainfall in Derby. Rain falls for 18.1 days and accumulates 2.52" (64mm) of precipitation.

When is the highest UV index in Derby?

The month with the highest UV index is July, with an average maximum UV index of 6.

What are the least humid months in Derby?

August and September, with an average relative humidity of 78%, are the least humid months in Derby, New York.

What month has the most sunshine in Derby?

August has the most sunshine of the year in Derby, with an average of 10.4h of sunshine.

What is the month with the shortest days in Derby?

December has the shortest days of the year, with an average of 9.1h of daylight.
Average temperature - Derby, NY
Average pressure - Derby, NY

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed - Derby, NY

The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

Average humidity - Derby, NY
Average rainfall - Derby, NY

The wettest month (with the highest rainfall) is July (2.52").
The driest month (with the least rainfall) is January (1.54").

Average rainfall days - Derby, NY

Months with the highest number of rainy days are July and October (18.1 days).
The month with the least rainy days is February (7 days).

Average snowfall - Derby, NY
Average snowfall days - Derby, NY

The month with the highest number of snowfall days is January (15.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Derby, 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: 10.4h).
The month with the least sunshine is January (Average sunshine: 2.4h).

Average sunshine days - Derby, NY
Average visibility - Derby, NY

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