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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, like December, in Westfield, New Jersey, is another cold winter month, with an average temperature varying between 36°F (2.2°C) and 23.9°F (-4.5°C). During the coldest month, January, temperatures average a high of 36°F (2.2°C) and a low of 23.9°F (-4.5°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Westfield, New Jersey, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 39.2°F (4°C). Westfield's weather in February displays an average high-temperature of a still cold 39.2°F (4°C), showing minor disparity from January's 36°F (2.2°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Westfield, New Jersey, with an average temperature varying between 47.3°F (8.5°C) and 32.9°F (0.5°C). Westfield's transition into March is marked by a minor temperature shift, moving from an icy 39.2°F (4°C) in February to a frosty 47.3°F (8.5°C). Weather in March »
Weather in April
April in Westfield, New Jersey, is a refreshing spring month, with an average temperature ranging between min 43.3°F (6.3°C) and max 59°F (15°C). The shift from March to April is marked by an increase in the average high-temperature, moving from a chilly 47.3°F (8.5°C) to a moderate 59°F (15°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Westfield, New Jersey, with an average temperature ranging between min 52.9°F (11.6°C) and max 69.3°F (20.7°C). A rise in the average high-temperature is observed during May, moving from a moderate 59°F (15°C) in April to a pleasant 69.3°F (20.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Westfield, New Jersey, with an average temperature ranging between min 60.6°F (15.9°C) and max 77.5°F (25.3°C). Westfield, New Jersey, in June experiences a slight uptick in the average high-temperature, adjusting from May's pleasant 69.3°F (20.7°C) to a warm 77.5°F (25.3°C). Weather in June »
Weather in July
July, like June, in Westfield, New Jersey, is another warm summer month, with an average temperature varying between 84.2°F (29°C) and 67.5°F (19.7°C). July, marked by an average high-temperature of 84.2°F (29°C) and a low-temperature of 67.5°F (19.7°C), is the warmest month. For July, the heat index is calculated to be a tropical 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Westfield, New Jersey, with an average temperature ranging between min 66.2°F (19°C) and max 82°F (27.8°C). The advent of August brings an average high-temperature of a still warm 82°F (27.8°C), exhibiting minor difference from the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Westfield, is still a warm month, with an average temperature fluctuating between 59.4°F (15.2°C) and 75.4°F (24.1°C). Westfield's progression into September involves a minor drop in the average high-temperature, slightly receding from 82°F (27.8°C) in August to a still moderately hot 75.4°F (24.1°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Westfield, New Jersey, with an average temperature fluctuating between 49.1°F (9.5°C) and 63.1°F (17.3°C). A shift in Westfield's weather is observed as September turns into October, with the average high temperature reducing from a warm 75.4°F (24.1°C) to an enjoyable 63.1°F (17.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Westfield, New Jersey, with temperature in the range of an average high of 51.1°F (10.6°C) and an average low of 38.1°F (3.4°C). In the transition to November, Westfield observes a drop in the average high-temperature, moving from a comfortable 63.1°F (17.3°C) in October to a fresh 51.1°F (10.6°C). Weather in November »
Weather in December
December, the first month of the winter in Westfield, is also a wintry month, with temperature in the range of an average high of 42.3°F (5.7°C) and an average low of 31.1°F (-0.5°C). The arrival of December is marked by a minor reduction in average high-temperature, sliding from a fresh 51.1°F (10.6°C) in November to a cold 42.3°F (5.7°C). Weather in December »
Updated: Jul 1, 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 month is the coldest?
In Westfield, January is known for its average lowest temperatures, reaching a high of 36°F (2.2°C) and a low of 23.9°F (-4.5°C).
How much does it rain?
Throughout the year, there are 160.7 rainfall days, and 30.12" (765mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How much does it snow in Westfield?
In Westfield, during the entire year, snow falls for 25.4 days and aggregates up to 10.31" (262mm) of snow.
When is 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 are the most humid months?
February, October and December, with an average relative humidity of 78%, are most humid months.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 4.6h of sunshine.
What is the snowiest month?
March is the month with the most snowfall. Snow falls for 5 days and accumulates 3.23" (82mm) 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 in Westfield?
The months with the lowest humidity are April and August, with an average relative humidity of 73%.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 0min of daylight.
When is the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What part of the year is the hottest?
July, with its average high-temperature of 84.2°F (29°C) and an average low-temperature of 67.5°F (19.7°C), holds the record as the warmest month.
What month has the most sunshine?
With an average of 10.5h of sunshine, July has the most sunshine of the year.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 1.69" (43mm) of precipitation.
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 3.19" (81mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Westfield, NJ
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure
Westfield, 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:
29.98"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
Westfield, NJ
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.7mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.1mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Westfield, NJ
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall
Westfield, NJ
- Average rainfall in January:
1.97" - Average rainfall in February:
2.24" - Average rainfall in March:
2.64" - Average rainfall in April:
2.36" - Average rainfall in May:
2.8" - Average rainfall in June:
2.4"
- Average rainfall in July:
3.03" - Average rainfall in August:
2.6" - Average rainfall in September:
1.69" - Average rainfall in October:
2.83" - Average rainfall in November:
2.36" - Average rainfall in December:
3.19"
The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days
Westfield, NJ
- Average rainfall days in January:
9.5 days - Average rainfall days in February:
10.5 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
13.4 days - Average rainfall days in November:
10 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (9.5 days).
Average snowfall
Westfield, NJ
- Average snowfall in January:
2.09" - Average snowfall in February:
2.87" - Average snowfall in March:
3.23" - Average snowfall in April:
0.2" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Westfield, NJ
- Average snowfall days in January:
7.3 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
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:
0.9 days - Average snowfall days in December:
4.1 days
The months with the highest number of snowfall days are January and February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Westfield, 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 4min - 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:
5h and 1min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
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
Westfield, NJ
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
13.7 days - Average sunshine days in March:
14 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
12.6 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
18.4 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.4 days).
Average UV index
Westfield, 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
Westfield, NJ
The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility
Westfield, 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).
Westfield, New Jersey, USA
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