Climate and monthly weather forecastRahway, NJ
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Rahway, New Jersey, with an average temperature ranging between min 25.7°F (-3.5°C) and max 36.5°F (2.5°C). Rahway's January weather reaches an average high of 36.5°F (2.5°C) and an average low of 25.7°F (-3.5°C), making it the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Rahway, New Jersey, with temperature in the range of an average low of 27.3°F (-2.6°C) and an average high of 39.2°F (4°C). A minor adjustment in Rahway's average high-temperature is noted with the start of February, touching a still cold 39.2°F (4°C) from January's 36.5°F (2.5°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Rahway, New Jersey, with an average temperature fluctuating between 34.3°F (1.3°C) and 46.9°F (8.3°C). The start of March brings a subtle rise in the average high-temperature, moving from a cold 39.2°F (4°C) in February to a frosty 46.9°F (8.3°C). Weather in March »Weather in April
April is a mild spring month in Rahway, New Jersey, with an average temperature ranging between min 44.1°F (6.7°C) and max 58.3°F (14.6°C). April signals a shift in the average high-temperature, moving from March's frosty 46.9°F (8.3°C) to a refreshing 58.3°F (14.6°C). Weather in April »Weather in May
May, the last month of the spring in Rahway, is an agreeable month, with temperature in the range of an average low of 54°F (12.2°C) and an average high of 68.2°F (20.1°C). Rahway, New Jersey, sees a rise in temperature during May, with average high-temperatures transitioning from a moderate 58.3°F (14.6°C) in April to a pleasant 68.2°F (20.1°C). Weather in May »Weather in June
June, the first month of the summer in Rahway, is a warm month, with an average temperature ranging between min 62.1°F (16.7°C) and max 76.8°F (24.9°C). With the onset of June, Rahway observes a minor temperature ascent, with the average high-temperature adjusting from May's pleasant 68.2°F (20.1°C) to a moderately hot 76.8°F (24.9°C). Weather in June »Weather in July
July, like June, in Rahway, New Jersey, is a moderately hot summer month, with an average temperature varying between 68.9°F (20.5°C) and 83.1°F (28.4°C). July registers as the month with the highest average temperatures, reaching 83.1°F (28.4°C) at its peak and 68.9°F (20.5°C) at the lowest. In July, the heat index is calculated to be a hot 89.6°F (32°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Rahway, New Jersey, with an average temperature fluctuating between 68.4°F (20.2°C) and 81.9°F (27.7°C). The ushering in of August brings an average high-temperature of a still warm 81.9°F (27.7°C), closely mirroring the 83.1°F (28.4°C) of July. Weather in August »Weather in September
September, the first month of the autumn in Rahway, is still a warm month, with an average temperature fluctuating between 75.2°F (24°C) and 61.2°F (16.2°C). The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 81.9°F (27.7°C) to a still moderately hot 75.2°F (24°C). Weather in September »Weather in October
October, like September, in Rahway, New Jersey, is another refreshing autumn month, with an average temperature varying between 50.9°F (10.5°C) and 63.3°F (17.4°C). The beginning of October marks a decrease in the average high-temperature, transitioning from a warm 75.2°F (24°C) in September to an enjoyable 63.3°F (17.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Rahway, New Jersey, with an average temperature fluctuating between 51.3°F (10.7°C) and 39.7°F (4.3°C). In November, the average high-temperature goes from an enjoyable 63.3°F (17.4°C) in October to a fresh 51.3°F (10.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Rahway, New Jersey, with temperature in the range of an average high of 42.4°F (5.8°C) and an average low of 32.9°F (0.5°C). The onset of December results in a small decrease in the average high-temperature, moderately receding from a cool 51.3°F (10.7°C) in November to a wintry 42.4°F (5.8°C). Weather in December »Updated: Feb 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
Rahway's coldest month, January, generally records average temperatures ranging from a high of 36.5°F (2.5°C) to a low of 25.7°F (-3.5°C).
In Rahway, New Jersey, during the entire year, the rain falls for 110.2 days and collects up to 8.9" (226mm) of precipitation.
Months with snowfall in Rahway are January through April, November and December.
Throughout the year, there are 14.5 snowfall days, and 1.85" (47mm) of snow is accumulated.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
The most humid month is February, with an average relative humidity of 77%.
The month with the least sunshine is February, with an average of 4.7h of sunshine.
March is the month with the most snowfall in Rahway. Snow falls for 3 days and accumulates 0.83" (21mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rahway, 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.
In Rahway, snow does not fall in May through October.
June has the longest days of the year in Rahway, New Jersey, with an average of 15h and 0min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Rahway.
The temperatures reach their highest averages in July, with highs of 83.1°F (28.4°C) and lows of 68.9°F (20.5°C).
July is the month with the most rainfall in Rahway, New Jersey. Rain falls for 12.7 days and accumulates 1.22" (31mm) of precipitation.
July has the most sunshine of the year, with an average of 10.6h of sunshine.
August is the least humid month, with an average relative humidity of 72%.
The month with the least rainfall in Rahway, New Jersey, is September, when the rain falls for 9.6 days and typically collects 0.39" (10mm) of precipitation.
The month with the shortest days in Rahway, New Jersey, is December, with an average of 9h and 18min of daylight.
Average temperature
Rahway, NJ
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (36.5°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure
Rahway, 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
Rahway, NJ
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.9mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8.6mph - Average wind speed in December:
8.9mph
The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity
Rahway, NJ
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (72%).
Average rainfall
Rahway, NJ
- Average rainfall in January:
0.51" - Average rainfall in February:
0.55" - Average rainfall in March:
0.63" - Average rainfall in April:
0.63" - Average rainfall in May:
0.94" - Average rainfall in June:
0.71"
- Average rainfall in July:
1.22" - Average rainfall in August:
0.98" - Average rainfall in September:
0.39" - Average rainfall in October:
0.79" - Average rainfall in November:
0.71" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days
Rahway, NJ
- Average rainfall days in January:
4.9 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
9 days - Average rainfall days in April:
10.4 days - Average rainfall days in May:
12.2 days - Average rainfall days in June:
11.3 days
- Average rainfall days in July:
12.7 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
9.6 days - Average rainfall days in October:
8.6 days - Average rainfall days in November:
5.7 days - Average rainfall days in December:
7.3 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is January (4.9 days).
Average snowfall
Rahway, NJ
The month with the highest snowfall is March (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Rahway, NJ
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
4.2 days - Average snowfall days in March:
3 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 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:
0.3 days - Average snowfall days in December:
2.8 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Rahway, NJ
- Average daylight in January:
9h and 42min - 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 0min
- Average daylight in July:
14h and 42min - 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 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Rahway, NJ
- Average sunshine days in January:
22.6 days - Average sunshine days in February:
18.6 days - Average sunshine days in March:
18.7 days - Average sunshine days in April:
17.3 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
15.4 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
15.7 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
19.8 days - Average sunshine days in November:
22.4 days - Average sunshine days in December:
21.3 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (14.8 days).
Average UV index
Rahway, 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
Rahway, 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 30).
Average visibility
Rahway, 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).
