Climate and monthly weather forecastLeonia, NJ
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Leonia, New Jersey, with temperature in the range of an average high of 35.4°F (1.9°C) and an average low of 24.3°F (-4.3°C). January, with average temperatures reaching a high of 35.4°F (1.9°C) and a low of 24.3°F (-4.3°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Leonia, is also an icy month, with an average temperature varying between 26.1°F (-3.3°C) and 39.2°F (4°C). February's arrival shows an average high-temperature of a still wintry 39.2°F (4°C), hardly different from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Leonia, New Jersey, with an average temperature ranging between max 46.8°F (8.2°C) and min 33.1°F (0.6°C). Leonia in March experiences a slight uptick in the average high-temperature, adjusting from February's icy 39.2°F (4°C) to a frosty 46.8°F (8.2°C). Weather in March »Weather in April
April is a refreshing spring month in Leonia, New Jersey, with an average temperature ranging between max 58.6°F (14.8°C) and min 43.3°F (6.3°C). April indicates a change in the average high-temperature, moving up from a chilly 46.8°F (8.2°C) in March to a moderate 58.6°F (14.8°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Leonia, New Jersey, with an average temperature varying between 69.4°F (20.8°C) and 53.2°F (11.8°C). The start of May brings a shift in the average high-temperature, increasing from April's refreshing 58.6°F (14.8°C) to an agreeable 69.4°F (20.8°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Leonia, New Jersey, with an average temperature varying between 61.5°F (16.4°C) and 77.5°F (25.3°C). June's onset brings a subtle temperature rise, moving from a pleasant 69.4°F (20.8°C) in May to a warm 77.5°F (25.3°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Leonia, New Jersey, with an average temperature ranging between min 68.5°F (20.3°C) and max 84.7°F (29.3°C). July is the month when Leonia's temperatures reach their peak, with averages of 84.7°F (29.3°C) and lows of 68.5°F (20.3°C). The heat index value for July is appraised at a hot 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Leonia, is another warm month, with an average temperature fluctuating between 82.9°F (28.3°C) and 67.6°F (19.8°C). With the onset of August, the average high-temperature stands at a still moderately hot 82.9°F (28.3°C), closely aligned with July's 84.7°F (29.3°C). Weather in August »Weather in September
September, the first month of the autumn in Leonia, is still a warm month, with an average temperature fluctuating between 75.4°F (24.1°C) and 60.1°F (15.6°C). As August transitions into September, Leonia sees a gentle drop in the average high-temperature, transitioning from a moderately hot 82.9°F (28.3°C) to a still warm 75.4°F (24.1°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Leonia, New Jersey, with an average temperature ranging between max 63.3°F (17.4°C) and min 50.5°F (10.3°C). October's arrival correlates with a reduction in the average high-temperature, down from a warm 75.4°F (24.1°C) in September to an enjoyable 63.3°F (17.4°C). Weather in October »Weather in November
November, the last month of the autumn in Leonia, is also a fresh month, with an average temperature varying between 38.8°F (3.8°C) and 50.9°F (10.5°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a refreshing 63.3°F (17.4°C) in October to a fresh 50.9°F (10.5°C). Weather in November »Weather in December
December, the first month of the winter in Leonia, is also a wintry month, with an average temperature varying between 41.9°F (5.5°C) and 31.5°F (-0.3°C). The shift to December brings a decrease in the average high-temperature, falling from a fresh 50.9°F (10.5°C) in November to a wintry 41.9°F (5.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Leonia, 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 (35.4°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Leonia, NJ
- Average pressure in January:
30.06"Hg - Average pressure in February:
30.03"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:
30.1"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Leonia, NJ
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.3mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
6mph - Average wind speed in September:
6.5mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8mph - Average wind speed in December:
8.2mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity
Leonia, NJ
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (69%).
Average rainfall
Leonia, NJ
- Average rainfall in January:
2.17" - Average rainfall in February:
2.17" - Average rainfall in March:
2.76" - Average rainfall in April:
2.56" - Average rainfall in May:
2.72" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.95" - Average rainfall in August:
2.6" - Average rainfall in September:
1.81" - Average rainfall in October:
2.99" - Average rainfall in November:
2.52" - Average rainfall in December:
3.43"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days
Leonia, NJ
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
10.1 days - Average rainfall days in March:
13.9 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
15.9 days - Average rainfall days in August:
15 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
12.1 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (8.8 days).
Average snowfall
Leonia, NJ
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Leonia, NJ
- Average snowfall days in January:
7 days - Average snowfall days in February:
7.4 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
0.4 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:
0.7 days - Average snowfall days in December:
4.2 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Leonia, 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 48min - 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 12min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Leonia, NJ
- Average sunshine days in January:
17 days - Average sunshine days in February:
13.5 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
13.1 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
15.7 days - Average sunshine days in November:
18 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (12.2 days).
Average UV index
Leonia, 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
Leonia, NJ
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Leonia, 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).





