Climate and monthly weather forecast
Cologne, NJ

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Weather in January

January, like December, in Cologne, New Jersey, is an icy winter month, with an average temperature fluctuating between 39.7°F (4.3°C) and 29.7°F (-1.3°C). In Cologne, the month of January is known for its lowest average temperatures, reaching a high of 39.7°F (4.3°C) and a low of 29.7°F (-1.3°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Cologne, New Jersey, with an average temperature varying between 42.4°F (5.8°C) and 31.5°F (-0.3°C). At the start of February, Cologne's average high-temperature reaches a still icy 42.4°F (5.8°C), subtly different from the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Cologne, New Jersey, with an average temperature ranging between min 37.2°F (2.9°C) and max 48.2°F (9°C). As March arrives, Cologne's weather shows a minor increase in high-temperatures, edging from February's icy 42.4°F (5.8°C) to a chilly 48.2°F (9°C). Weather in March »

Weather in April

April is a refreshing spring month in Cologne, New Jersey, with an average temperature ranging between min 46.8°F (8.2°C) and max 58.6°F (14.8°C). April's arrival coincides with a temperature rise, moving from March's chilly 48.2°F (9°C) to a mild 58.6°F (14.8°C). Weather in April »

Weather in May

May, the last month of the spring in Cologne, is an enjoyable month, with an average temperature varying between 55.9°F (13.3°C) and 67.6°F (19.8°C). Cologne's May weather shows an increase in high-temperatures, moving from April's refreshing 58.6°F (14.8°C) to a comfortable 67.6°F (19.8°C). Weather in May »

Weather in June

June, the first month of the summer in Cologne, is a moderately hot month, with an average temperature fluctuating between 64.2°F (17.9°C) and 76.6°F (24.8°C). With the transition into June, Cologne experiences an increase in average high-temperatures, moving up from an enjoyable 67.6°F (19.8°C) in May to a warm 76.6°F (24.8°C). Weather in June »

Weather in July

July, like June, in Cologne, New Jersey, is a moderately hot summer month, with temperature in the range of an average low of 70.5°F (21.4°C) and an average high of 82°F (27.8°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 82°F (27.8°C) and a low of 70.5°F (21.4°C). In July, the average heat index is calculated to be a tropical 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Cologne, New Jersey, with an average temperature varying between 81.3°F (27.4°C) and 69.6°F (20.9°C). Transitioning into August, Cologne records an average high-temperature of a still warm 81.3°F (27.4°C), almost identical to July's 82°F (27.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Cologne, New Jersey, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 64.2°F (17.9°C). With the commencement of September, Cologne records a moderate temperature decline, with the average high easing from August's moderately hot 81.3°F (27.4°C) to a still warm 74.8°F (23.8°C). Weather in September »

Weather in October

October, like September, in Cologne, New Jersey, is another refreshing autumn month, with an average temperature varying between 54.5°F (12.5°C) and 65.1°F (18.4°C). October shows a mild decline in the average high-temperature, falling from September's moderately hot 74.8°F (23.8°C) to an enjoyable 65.1°F (18.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Cologne, New Jersey, with an average temperature fluctuating between 43.5°F (6.4°C) and 54.1°F (12.3°C). As October transitions to November, the average high-temperature falls from a refreshing 65.1°F (18.4°C) to a fresh 54.1°F (12.3°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Cologne, New Jersey, with an average temperature fluctuating between 36.5°F (2.5°C) and 46°F (7.8°C). With the onset of December, the average high-temperature subtly recedes from November's cool 54.1°F (12.3°C) to a frosty 46°F (7.8°C). Weather in December »
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

The lowest temperatures are recorded in January, with averages reaching a high of 39.7°F (4.3°C) and a low of 29.7°F (-1.3°C).

What is the driest month in Cologne?

The month with the least rainfall is January, when the rain falls for 8.3 days and typically collects 1.61" (41mm) of precipitation.

How much does it rain?

In Cologne, during the entire year, the rain falls for 144.2 days and collects up to 27.48" (698mm) of precipitation.

When does it snow?

Months with snowfall are January through April, November and December.

How many days does it snow?

In Cologne, New Jersey, during the entire year, snow falls for 12.6 days and aggregates up to 5.79" (147mm) of snow.

When is the lowest UV index?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the month with the least sunshine?

February has the least sunshine of the year, with an average of 4.9h of sunshine.

When does it snow the most in Cologne?

The month with the most snowfall is March, when snow falls for 2.9 days and typically aggregates up to 1.97" (50mm) of snow.

When is Daylight Saving Time (DST)?

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.

What is the least humid month?

April is the least humid month, with an average relative humidity of 73%.

What are the most humid months?

The months with the highest humidity are May and June, with an average relative humidity of 79%.

When it does not snow?

May through October are months without snowfall.

What are the months with the highest UV index?

The months with the highest UV index in Cologne are May through August, with an average maximum UV index of 6.

When are the longest days?

With an average of 14h and 54min of daylight, June has the longest days of the year.

What time of the year is the hottest?

In Cologne, the peak average temperatures are observed in July, with a high of 82°F (27.8°C) and a low of 70.5°F (21.4°C).

What month has the most sunshine?

With an average of 10.7h of sunshine, July has the most sunshine of the year.

What is the rainiest month?

August is the month with the most rainfall in Cologne. Rain falls for 15.2 days and accumulates 2.91" (74mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

Average temperature
Cologne, NJ

Average temperature - Cologne, NJ

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (39.7°F).

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure
Cologne, NJ

Average pressure - Cologne, NJ

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
Cologne, NJ

Average wind speed - Cologne, NJ

The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).

Average humidity
Cologne, NJ

Average humidity - Cologne, NJ

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall
Cologne, NJ

Average rainfall - Cologne, NJ

The wettest month (with the highest rainfall) is August (2.91").
The driest month (with the least rainfall) is January (1.61").

Average rainfall days
Cologne, NJ

Average rainfall days - Cologne, NJ

The month with the highest number of rainy days is July (16.1 days).
The months with the least rainy days are January and November (8.3 days).

Average snowfall
Cologne, NJ

Average snowfall - Cologne, NJ

The month with the highest snowfall is March (1.97").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Cologne, NJ

Average snowfall days - Cologne, NJ

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Cologne, NJ

Average daylight / Average sunshine - Cologne, NJ

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days
Cologne, NJ

Average sunshine days - Cologne, NJ

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (12.3 days).

Average UV index
Cologne, NJ

Average UV index - Cologne, NJ

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average visibility
Cologne, NJ

Average visibility - Cologne, NJ

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).

Cologne, New Jersey, USA

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