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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
Climate and monthly weather forecast
Weather in January
January, like December, in Griggstown, New Jersey, is another cold winter month, with an average temperature ranging between min 24.3°F (-4.3°C) and max 36.9°F (2.7°C). With average temperatures fluctuating between a high of 36.9°F (2.7°C) and a low of 24.3°F (-4.3°C), January stands out as the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Griggstown, New Jersey, with an average temperature fluctuating between 39.9°F (4.4°C) and 26.1°F (-3.3°C). The average high-temperature for February is a still wintry 39.9°F (4.4°C), closely aligning with the temperature of the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Griggstown, is a frosty month, with an average temperature fluctuating between 33.3°F (0.7°C) and 48.6°F (9.2°C). March's arrival is noted with a slight increase in the average high-temperature, moving from an icy 39.9°F (4.4°C) in February to a frosty 48.6°F (9.2°C). Weather in March »
Weather in April
April in Griggstown, New Jersey, is a mild spring month, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 43.3°F (6.3°C). In Griggstown, the average high-temperature in April rises, from a chilly 48.6°F (9.2°C) in March, to a moderate 60.4°F (15.8°C). Weather in April »
Weather in May
May, the last month of the spring in Griggstown, is an agreeable month, with an average temperature fluctuating between 53.2°F (11.8°C) and 70.5°F (21.4°C). The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a refreshing 60.4°F (15.8°C) in April to an agreeable 70.5°F (21.4°C). Weather in May »
Weather in June
June, the first month of the summer in Griggstown, is a moderately hot month, with an average temperature varying between 78.4°F (25.8°C) and 61°F (16.1°C). The start of June is characterized by a subtle increase in the average high-temperature, transitioning from an agreeable 70.5°F (21.4°C) in May to a warm 78.4°F (25.8°C). Weather in June »
Weather in July
July, like June, in Griggstown, New Jersey, is a moderately hot summer month, with an average temperature ranging between max 84.7°F (29.3°C) and min 66.9°F (19.4°C). Griggstown's July weather reaches an average high of 84.7°F (29.3°C) and an average low of 66.9°F (19.4°C), making it the warmest month. The average heat index in July is appraised at a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Griggstown, is also a moderately hot month, with an average temperature fluctuating between 82.9°F (28.3°C) and 65.8°F (18.8°C). The arrival of August sees an average high-temperature of a still warm 82.9°F (28.3°C), hardly diverging from July's 84.7°F (29.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Griggstown, is still a warm month, with an average temperature ranging between max 75.7°F (24.3°C) and min 59°F (15°C). The advent of September brings a slight shift in average high-temperature, moving from a moderately hot 82.9°F (28.3°C) in August to a still warm 75.7°F (24.3°C). Weather in September »
Weather in October
October, like September, in Griggstown, New Jersey, is another comfortable autumn month, with an average temperature ranging between max 63.9°F (17.7°C) and min 49.1°F (9.5°C). As October arrives, Griggstown's weather displays a decrease in high-temperatures, transitioning from September's warm 75.7°F (24.3°C) to an enjoyable 63.9°F (17.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Griggstown, is also a fresh month, with an average temperature fluctuating between 37.8°F (3.2°C) and 51.8°F (11°C). The transition into November involves a decrease in the average high-temperature, falling from a comfortable 63.9°F (17.7°C) in October to a fresh 51.8°F (11°C). Weather in November »
Weather in December
December, the first month of the winter in Griggstown, is still a chilly month, with an average temperature ranging between max 43°F (6.1°C) and min 31.1°F (-0.5°C). December marks a gentle change in average high-temperature, declining from November's fresh 51.8°F (11°C) to a chilly 43°F (6.1°C). Weather in December »
Updated: Jul 13, 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 is the coldest time of year?
January, having an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 24.3°F (-4.3°C), is the coldest month.
How many days does it rain?
Throughout the year, there are 119.3 rainfall days, and 12.72" (323mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, November and December.
How much does it snow?
Throughout the year, there are 16.4 snowfall days, and 4.41" (112mm) of snow is accumulated.
What is the month with the lowest UV index?
January through March, November 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?
With an average of 4.8h of sunshine, February has the least sunshine of the year.
What is the snowiest month?
The month with the most snowfall is March, when snow falls for 3.7 days and typically aggregates up to 1.42" (36mm) 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%.
When it does not snow in Griggstown?
June through October are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 0min of daylight.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year?
July is the month when Griggstown's temperatures reach their peak, with averages of 84.7°F (29.3°C) and lows of 66.9°F (19.4°C).
What is the wettest month?
The month with the most rainfall is July, when the rain falls for 13.9 days and typically aggregates up to 1.69" (43mm) of precipitation.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.5h of sunshine.
What is the driest month?
The month with the least rainfall in Griggstown is September, when the rain falls for 10 days and typically collects 0.67" (17mm) of precipitation.
What is the most humid month?
October is the most humid month, with an average relative humidity of 79%.
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
Griggstown, NJ
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Griggstown, NJ
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.99"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:
29.98"Hg - Average pressure in September:
30.05"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
Griggstown, NJ
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
6mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.5mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Griggstown, NJ
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Griggstown, NJ
- Average rainfall in January:
0.71" - Average rainfall in February:
0.83" - Average rainfall in March:
1.06" - Average rainfall in April:
0.83" - Average rainfall in May:
1.22" - Average rainfall in June:
1.02"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.5" - Average rainfall in September:
0.67" - Average rainfall in October:
1.02" - Average rainfall in November:
0.91" - Average rainfall in December:
1.26"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days
Griggstown, NJ
- Average rainfall days in January:
6.1 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
12.6 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
13.9 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
10 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).
Average snowfall
Griggstown, NJ
- Average snowfall in January:
0.79" - Average snowfall in February:
0.94" - Average snowfall in March:
1.42" - Average snowfall in April:
0.12" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Griggstown, NJ
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
4.4 days - Average snowfall days in March:
3.7 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
2.7 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Griggstown, 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 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - 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:
5h and 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
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 48min).
Average sunshine days
Griggstown, NJ
- Average sunshine days in January:
21.8 days - Average sunshine days in February:
18.2 days - Average sunshine days in March:
16.8 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
15 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
21.7 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index
Griggstown, 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
Griggstown, NJ
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility
Griggstown, 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).