Climate and monthly weather forecastAlpine, NJ
Climate and monthly weather forecast
Weather in January
January, like December, in Alpine, New Jersey, is another cold winter month, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 35.4°F (1.9°C). Alpine's coldest month, January, generally records average temperatures ranging from a high of 35.4°F (1.9°C) to a low of 24.1°F (-4.4°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Alpine, New Jersey, with an average temperature varying between 38.8°F (3.8°C) and 25.7°F (-3.5°C). The shift into February reveals an average high-temperature of a still icy 38.8°F (3.8°C), closely mirroring January's climate. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Alpine, New Jersey, with temperature in the range of an average low of 32.7°F (0.4°C) and an average high of 46.6°F (8.1°C). With the onset of March, Alpine's average high-temperature sees a modest rise, moving from February's icy 38.8°F (3.8°C) to a chilly 46.6°F (8.1°C). Weather in March »Weather in April
April is a mild spring month in Alpine, New Jersey, with an average temperature fluctuating between 43.2°F (6.2°C) and 58.3°F (14.6°C). As Alpine, New Jersey, transitions into April, a rise in the average high-temperature is observed, moving from a chilly 46.6°F (8.1°C) in March to a mild 58.3°F (14.6°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Alpine, New Jersey, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 52.7°F (11.5°C). Alpine experiences a temperature shift with the start of May, with average high-temperatures moving from a moderate 58.3°F (14.6°C) in April to a pleasant 69.6°F (20.9°C). Weather in May »Weather in June
June, the first month of the summer in Alpine, is a moderately hot month, with an average temperature fluctuating between 60.6°F (15.9°C) and 78.4°F (25.8°C). With the onset of June, Alpine observes a minor temperature ascent, with the average high-temperature adjusting from May's pleasant 69.6°F (20.9°C) to a moderately hot 78.4°F (25.8°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Alpine, New Jersey, with an average temperature varying between 68°F (20°C) and 84.9°F (29.4°C). Alpine's temperatures peak on average in July, reaching 84.9°F (29.4°C) at their highest and 68°F (20°C) at their lowest. The heat index value during July is estimated at a tropical 93.2°F (34°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Alpine, New Jersey, with an average temperature ranging between min 67.3°F (19.6°C) and max 82.9°F (28.3°C). The shift into August uncovers an average high-temperature of a still moderately hot 82.9°F (28.3°C), subtly different from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Alpine, is also a moderately hot month, with an average temperature ranging between min 59.9°F (15.5°C) and max 75.4°F (24.1°C). Alpine in September undergoes a slight reduction in the average high-temperature, shifting from August's warm 82.9°F (28.3°C) to a still moderately hot 75.4°F (24.1°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Alpine, New Jersey, with an average temperature varying between 63.1°F (17.3°C) and 50.2°F (10.1°C). October comes with a drop in the average high-temperature, falling from September's moderately hot 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 Alpine, New Jersey, with an average temperature fluctuating between 38.5°F (3.6°C) and 50.9°F (10.5°C). The average high-temperature decreases in November, shifting from a refreshing 63.1°F (17.3°C) in October to a fresh 50.9°F (10.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Alpine, New Jersey, with an average temperature varying between 41.7°F (5.4°C) and 30.9°F (-0.6°C). December comes with a drop in the average high-temperature, falling from November's fresh 50.9°F (10.5°C) to a cold 41.7°F (5.4°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Alpine, NJ
The warmest month (with the highest average high temperature) is July (84.9°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°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure
Alpine, 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:
30.06"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
Alpine, NJ
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.7mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Alpine, NJ
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Alpine, NJ
- Average rainfall in January:
2.2" - Average rainfall in February:
2.05" - Average rainfall in March:
2.76" - Average rainfall in April:
2.76" - Average rainfall in May:
2.68" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.28" - Average rainfall in September:
1.73" - Average rainfall in October:
2.99" - Average rainfall in November:
2.48" - Average rainfall in December:
3.46"
The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days
Alpine, NJ
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
9 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall
Alpine, NJ
The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Alpine, NJ
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
5.4 days - Average snowfall days in April:
0.7 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:
1.1 days - Average snowfall days in December:
4.6 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Alpine, 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 6min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Alpine, NJ
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
12.7 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
13.1 days - Average sunshine days in August:
15 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
17 days - Average sunshine days in November:
18.1 days - Average sunshine days in December:
16.8 days
The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).
Average UV index
Alpine, 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
Alpine, NJ
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Alpine, 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).





