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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is an icy winter month in Chatham, New Jersey, with temperature in the range of an average high of 35.1°F (1.7°C) and an average low of 22.5°F (-5.3°C). With average high and low temperatures of 35.1°F (1.7°C) and 22.5°F (-5.3°C) respectively, January is Chatham's coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Chatham, New Jersey, with an average temperature varying between 38.3°F (3.5°C) and 24.3°F (-4.3°C). Upon the onset of February, Chatham witnesses an average high-temperature of a still cold 38.3°F (3.5°C), showing a close resemblance to the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Chatham, New Jersey, with an average temperature varying between 46.4°F (8°C) and 31.6°F (-0.2°C). Chatham's transition into March sees a mild rise in the average high-temperature, edging from a cold 38.3°F (3.5°C) in February to a chilly 46.4°F (8°C). Weather in March »
Weather in April
April in Chatham, New Jersey, is a mild spring month, with temperature in the range of an average low of 41.9°F (5.5°C) and an average high of 58.5°F (14.7°C). As April arrives, a rise in the average high-temperature is observed, moving from a frosty 46.4°F (8°C) in March to a mild 58.5°F (14.7°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Chatham, New Jersey, with an average temperature fluctuating between 51.4°F (10.8°C) and 69.1°F (20.6°C). A shift in the average high-temperature is noticeable in May, changing from a moderate 58.5°F (14.7°C) in April to a pleasant 69.1°F (20.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Chatham, New Jersey, with an average temperature varying between 77.5°F (25.3°C) and 59°F (15°C). As May transitions into June, a subtle temperature shift is observed, with average highs adjusting from an agreeable 69.1°F (20.6°C) to a warm 77.5°F (25.3°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Chatham, New Jersey, with an average temperature varying between 65.7°F (18.7°C) and 83.7°F (28.7°C). In Chatham, New Jersey, July records the highest average temperatures, peaking at 83.7°F (28.7°C) and reaching a low of 65.7°F (18.7°C). The average heat index in July is estimated at a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Chatham, is also a moderately hot month, with an average temperature ranging between min 64.2°F (17.9°C) and max 81.9°F (27.7°C). August brings an average high-temperature of a still warm 81.9°F (27.7°C), showing a slight difference from July's 83.7°F (28.7°C). Weather in August »
Weather in September
September, the first month of the autumn in Chatham, is also a moderately hot month, with an average temperature varying between 74.5°F (23.6°C) and 57.6°F (14.2°C). Chatham's transition into September involves a gentle shift in temperature, receding from a moderately hot 81.9°F (27.7°C) in August to a still warm 74.5°F (23.6°C). Weather in September »
Weather in October
October, like September, in Chatham, New Jersey, is another enjoyable autumn month, with an average temperature ranging between min 47.5°F (8.6°C) and max 62.2°F (16.8°C). As October commences, the average high-temperature shows a reduction, transitioning from a warm 74.5°F (23.6°C) in September to a comfortable 62.2°F (16.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Chatham, is another cool month, with temperature in the range of an average high of 50.5°F (10.3°C) and an average low of 36.5°F (2.5°C). Chatham's progression into November involves a drop in the average high-temperature, receding from a comfortable 62.2°F (16.8°C) in October to a fresh 50.5°F (10.3°C). Weather in November »
Weather in December
December, the first month of the winter in Chatham, is also a wintry month, with an average temperature fluctuating between 40.8°F (4.9°C) and 29.7°F (-1.3°C). The commencement of December indicates a shift in the average high-temperature, receding from November's fresh 50.5°F (10.3°C) to an icy 40.8°F (4.9°C). Weather in December »
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
January is the month when Chatham experiences its coldest temperatures, averaging a high of 35.1°F (1.7°C) and a low of 22.5°F (-5.3°C).
How much does it rain?
In Chatham, during the entire year, the rain falls for 164.2 days and collects up to 30.67" (779mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall.
How much does it snow?
Throughout the year, there are 26 snowfall days, and 11.61" (295mm) of snow is accumulated.
What is the month with the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month?
The months with the highest humidity are February and December, with an average relative humidity of 80%.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 4.6h of sunshine.
When does it snow the most in Chatham?
The month with the most snowfall is March, when snow falls for 5.5 days and typically aggregates up to 3.5" (89mm) 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 are the least humid months?
April and August, with an average relative humidity of 74%, are the least humid months.
When it does not snow in Chatham?
June through September are months without snowfall in Chatham.
When are the longest days?
The month with the longest days in Chatham is June, with an average of 15h and 0min of daylight.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What are the warmest months?
Temperature records in Chatham, New Jersey, mark July as the warmest month, with highs averaging 83.7°F (28.7°C) and lows at 65.7°F (18.7°C).
What is the wettest month?
The month with the most rainfall is July, when the rain falls for 17.4 days and typically aggregates up to 3.27" (83mm) of precipitation.
What month has the most sunshine in Chatham?
The month with the most sunshine is July, with an average of 10.3h of sunshine.
What is the driest month?
September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 1.69" (43mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Chatham, NJ
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.1°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
Chatham, NJ
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.06"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:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Chatham, NJ
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Chatham, NJ
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April and August (74%).
Average rainfall
Chatham, NJ
- Average rainfall in January:
1.93" - Average rainfall in February:
2.17" - Average rainfall in March:
2.6" - Average rainfall in April:
2.4" - Average rainfall in May:
2.91" - Average rainfall in June:
2.64"
- Average rainfall in July:
3.27" - Average rainfall in August:
2.72" - Average rainfall in September:
1.69" - Average rainfall in October:
2.99" - Average rainfall in November:
2.32" - Average rainfall in December:
3.03"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days
Chatham, NJ
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14.1 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
11.6 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (8.8 days).
Average snowfall
Chatham, NJ
The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Chatham, NJ
- Average snowfall days in January:
7.6 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
5.5 days - Average snowfall days in April:
0.6 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:
0.8 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Chatham, NJ
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Chatham, NJ
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
13.5 days - Average sunshine days in March:
13.1 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
10.5 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
12.5 days - Average sunshine days in September:
14.2 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
15.6 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.5 days).
Average UV index
Chatham, NJ
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, November and December (UV index 2).
Average cloud cover
Chatham, NJ
The months with the most cloud cover are February and March (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility
Chatham, NJ
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Chatham, New Jersey, USA
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