Climate and monthly weather forecastChester, NJ
Climate and monthly weather forecast
Weather in January
January, like December, in Chester, New Jersey, is a wintry winter month, with an average temperature ranging between min 22.3°F (-5.4°C) and max 35.1°F (1.7°C). January, characterized by an average high temperature of 35.1°F (1.7°C) and a low temperature of 22.3°F (-5.4°C), is generally the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Chester, New Jersey, with an average temperature ranging between max 38.3°F (3.5°C) and min 23.7°F (-4.6°C). The arrival of February denotes a barely perceptible change in the average high-temperatures to a still cold 38.3°F (3.5°C) from January's 35.1°F (1.7°C). Weather in February »Weather in March
March, the first month of the spring in Chester, is a chilly month, with an average temperature fluctuating between 31.5°F (-0.3°C) and 46.6°F (8.1°C). March's arrival signals a modest temperature shift, moving from an icy 38.3°F (3.5°C) in February to a chilly 46.6°F (8.1°C). Weather in March »Weather in April
April in Chester, New Jersey, is a mild spring month, with an average temperature varying between 58.6°F (14.8°C) and 41.5°F (5.3°C). April witnesses an increase in the average high-temperature, moving from a chilly 46.6°F (8.1°C) in March to a refreshing 58.6°F (14.8°C). Weather in April »Weather in May
May, the last month of the spring in Chester, is an agreeable month, with an average temperature varying between 69.6°F (20.9°C) and 50.9°F (10.5°C). Chester's weather in May presents a rise in the average high-temperature, moving from a mild 58.6°F (14.8°C) in April to a pleasant 69.6°F (20.9°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Chester, New Jersey, with an average temperature ranging between min 58.5°F (14.7°C) and max 77.5°F (25.3°C). The arrival of June brings a soft temperature shift, with the average high-temperature nudging from an agreeable 69.6°F (20.9°C) in May to a warm 77.5°F (25.3°C). Weather in June »Weather in July
July, like June, in Chester, New Jersey, is another warm summer month, with an average temperature varying between 83.7°F (28.7°C) and 64.8°F (18.2°C). July, with its average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 64.8°F (18.2°C), holds the record as the warmest month. Throughout July, the heat index is estimated at a tropical 91.4°F (33°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Chester, New Jersey, with an average temperature ranging between min 63°F (17.2°C) and max 81.3°F (27.4°C). The onset of August notes an average high-temperature of a still warm 81.3°F (27.4°C), subtly shifted from July's 83.7°F (28.7°C). Weather in August »Weather in September
September, the first month of the autumn in Chester, is still a warm month, with an average temperature ranging between max 74.5°F (23.6°C) and min 56.8°F (13.8°C). The arrival of September suggests a slight decrease in the average high-temperature, moving from 81.3°F (27.4°C) in August to a still moderately hot 74.5°F (23.6°C). Weather in September »Weather in October
October, like September, in Chester, New Jersey, is another enjoyable autumn month, with an average temperature ranging between max 62.2°F (16.8°C) and min 47.1°F (8.4°C). Chester in October undergoes a mild reduction in the average high-temperature, shifting from September's warm 74.5°F (23.6°C) to an enjoyable 62.2°F (16.8°C). Weather in October »Weather in November
November, the last month of the autumn in Chester, is also a fresh month, with an average temperature fluctuating between 36°F (2.2°C) and 50.4°F (10.2°C). As October transitions into November, Chester sees a drop in the average high-temperature, transitioning from a comfortable 62.2°F (16.8°C) to a fresh 50.4°F (10.2°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Chester, New Jersey, with an average temperature ranging between max 41°F (5°C) and min 29.3°F (-1.5°C). Stepping into December, Chester observes a temperature decline, with the average high falling from November's cool 50.4°F (10.2°C) to a cold 41°F (5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Chester, 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 (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure
Chester, 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:
30.03"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
Chester, NJ
- Average wind speed in January:
8.1mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8mph - Average wind speed in May:
6.4mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Chester, NJ
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall
Chester, NJ
- Average rainfall in January:
2.24" - Average rainfall in February:
2.24" - Average rainfall in March:
2.76" - Average rainfall in April:
2.91" - Average rainfall in May:
3.11" - Average rainfall in June:
2.76"
- Average rainfall in July:
3.31" - Average rainfall in August:
2.91" - Average rainfall in September:
1.85" - Average rainfall in October:
3.03" - Average rainfall in November:
2.6" - Average rainfall in December:
3.39"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days
Chester, NJ
- Average rainfall days in January:
8.9 days - Average rainfall days in February:
10.2 days - Average rainfall days in March:
13.1 days - Average rainfall days in April:
16.4 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
13.9 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
10.9 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (8.9 days).
Average snowfall
Chester, NJ
- Average snowfall in January:
2.91" - Average snowfall in February:
3.5" - Average snowfall in March:
4.49" - Average snowfall in April:
0.28" - Average snowfall in May:
0.55" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Chester, NJ
- Average snowfall days in January:
8.3 days - Average snowfall days in February:
8.1 days - Average snowfall days in March:
5.8 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0.2 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:
1.2 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Chester, NJ
- Average daylight in January:
9h and 36min - 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 6min
- 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 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Chester, NJ
- Average sunshine days in January:
17 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
11.5 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
15 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
17.6 days - Average sunshine days in December:
16.6 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.4 days).
Average UV index
Chester, NJ
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Chester, NJ
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
Chester, NJ
The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).





