Climate and monthly weather forecastDayton, NJ
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Dayton, New Jersey, with an average temperature varying between 37°F (2.8°C) and 25°F (-3.9°C). January stands out as Dayton's coldest month, with temperatures ranging between an average high of 37°F (2.8°C) and a low of 25°F (-3.9°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Dayton, New Jersey, with an average temperature ranging between max 39.9°F (4.4°C) and min 26.6°F (-3°C). The introduction of February notes a subtle temperature variation to a still cold 39.9°F (4.4°C) from January's 37°F (2.8°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Dayton, New Jersey, with an average temperature fluctuating between 34.2°F (1.2°C) and 47.8°F (8.8°C). March showcases a minor temperature ascent, adjusting from February's cold 39.9°F (4.4°C) to a chilly 47.8°F (8.8°C). Weather in March »Weather in April
April in Dayton, New Jersey, is a refreshing spring month, with an average temperature ranging between min 43.9°F (6.6°C) and max 59.4°F (15.2°C). April brings a temperature increase, with average high-temperatures moving from March's chilly 47.8°F (8.8°C) to a moderate 59.4°F (15.2°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Dayton, New Jersey, with an average temperature varying between 54°F (12.2°C) and 69.4°F (20.8°C). Entering May, Dayton sees a temperature rise, with the average high-temperature advancing from April's refreshing 59.4°F (15.2°C) to an agreeable 69.4°F (20.8°C). Weather in May »Weather in June
June, the first month of the summer in Dayton, is a warm month, with an average temperature fluctuating between 61.5°F (16.4°C) and 77.9°F (25.5°C). June signifies a subtle uplift in the average high-temperature, adjusting from a pleasant 69.4°F (20.8°C) in May to a warm 77.9°F (25.5°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Dayton, New Jersey, with an average temperature fluctuating between 68°F (20°C) and 84.2°F (29°C). In Dayton, New Jersey, the highest average temperatures are observed in July, with a high of 84.2°F (29°C) and a low of 68°F (20°C). The heat index for July is calculated to be a hot 91.4°F (33°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Dayton, New Jersey, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 82.4°F (28°C). Upon the beginning of August, Dayton's high-temperatures register at a still moderately hot 82.4°F (28°C), closely mirroring the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Dayton, is also a moderately hot month, with temperature in the range of an average low of 60.6°F (15.9°C) and an average high of 75.7°F (24.3°C). September witnesses a gentle descent in average high-temperature, descending from August's moderately hot 82.4°F (28°C) to a still warm 75.7°F (24.3°C). Weather in September »Weather in October
October, like September, in Dayton, New Jersey, is another enjoyable autumn month, with an average temperature fluctuating between 63.9°F (17.7°C) and 50.4°F (10.2°C). October shows a mild decline in the average high-temperature, falling from September's moderately hot 75.7°F (24.3°C) to a comfortable 63.9°F (17.7°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Dayton, New Jersey, with an average temperature fluctuating between 38.8°F (3.8°C) and 52°F (11.1°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's comfortable 63.9°F (17.7°C) to a cool 52°F (11.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Dayton, New Jersey, with an average temperature fluctuating between 43.2°F (6.2°C) and 32.7°F (0.4°C). December is characterized by a mild reduction in the average high-temperature, from a fresh 52°F (11.1°C) in November to a frosty 43.2°F (6.2°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
Dayton's January weather reaches an average high of 37°F (2.8°C) and an average low of 25°F (-3.9°C), making it the coldest month.
In Dayton, during the entire year, the rain falls for 92.9 days and collects up to 7.32" (186mm) of precipitation.
January through March, November and December are months with snowfall in Dayton, New Jersey.
Throughout the year, in Dayton, New Jersey, there are 12.7 snowfall days, and 1.5" (38mm) of snow is accumulated.
The months with the lowest UV index in Dayton are January through March, November and December, with an average maximum UV index of 2.
February, May, October and December, with an average relative humidity of 77%, are most humid months.
The month with the least sunshine in Dayton, New Jersey, is February, with an average of 4.7h of sunshine.
The month with the most snowfall is March, when snow falls for 3 days and typically aggregates up to 0.51" (13mm) of snow.
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.
April and August, with an average relative humidity of 73%, are the least humid months in Dayton, New Jersey.
In Dayton, New Jersey, snow does not fall in April through October.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
June has the longest days of the year in Dayton, New Jersey, with an average of 15h and 0min of daylight.
July stands out as Dayton's warmest month, with an average high-temperature of 84.2°F (29°C) and a low-temperature of 68°F (20°C).
The month with the most rainfall is July, when the rain falls for 10.7 days and typically aggregates up to 0.94" (24mm) of precipitation.
The month with the most sunshine in Dayton, New Jersey, is July, with an average of 10.5h of sunshine.
The month with the least rainfall in Dayton, New Jersey, is September, when the rain falls for 7.5 days and typically collects 0.28" (7mm) of precipitation.
December has the shortest days of the year in Dayton, New Jersey, with an average of 9h and 18min of daylight.
Average temperature
Dayton, 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 (37°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
Dayton, 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
Dayton, NJ
- Average wind speed in January:
9.1mph - Average wind speed in February:
9mph - Average wind speed in March:
9.3mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.5mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
Dayton, NJ
The months with the highest relative humidity are February, May, October and December (77%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall
Dayton, NJ
- Average rainfall in January:
0.43" - Average rainfall in February:
0.47" - Average rainfall in March:
0.59" - Average rainfall in April:
0.51" - Average rainfall in May:
0.75" - Average rainfall in June:
0.59"
- Average rainfall in July:
0.94" - Average rainfall in August:
0.79" - Average rainfall in September:
0.28" - Average rainfall in October:
0.59" - Average rainfall in November:
0.59" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is July (0.94").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days
Dayton, NJ
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
7.9 days - Average rainfall days in April:
8.5 days - Average rainfall days in May:
9.8 days - Average rainfall days in June:
9.3 days
- Average rainfall days in July:
10.7 days - Average rainfall days in August:
10.3 days - Average rainfall days in September:
7.5 days - Average rainfall days in October:
7.3 days - Average rainfall days in November:
4.8 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is July (10.7 days).
The months with the least rainy days are January and November (4.8 days).
Average snowfall
Dayton, NJ
The month with the highest snowfall is March (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Dayton, NJ
- Average snowfall days in January:
3.3 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
3 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
0.2 days - Average snowfall days in December:
2.2 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Dayton, 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 24min - 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 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - 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 6min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 42min - 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Dayton, NJ
- Average sunshine days in January:
24.2 days - Average sunshine days in February:
19.8 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
20.1 days - Average sunshine days in May:
18 days - Average sunshine days in June:
17.9 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
20.5 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
23.5 days - Average sunshine days in December:
23 days
The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is July (15.7 days).
Average UV index
Dayton, NJ
The months with the highest UV index are May, 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
Dayton, 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
Dayton, 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).
