Climate and monthly weather forecastMorris Plains, NJ
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Morris Plains, New Jersey, with an average temperature varying between 22.5°F (-5.3°C) and 34.9°F (1.6°C). Morris Plains's coldest weather arrives in January, when temperatures average a high of 34.9°F (1.6°C) and a low of 22.5°F (-5.3°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Morris Plains, New Jersey, with an average temperature varying between 38.3°F (3.5°C) and 24.1°F (-4.4°C). As Morris Plains welcomes February, the average high-temperature stabilizes at a still wintry 38.3°F (3.5°C), showing little deviation from January's 34.9°F (1.6°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Morris Plains, New Jersey, with an average temperature varying between 46°F (7.8°C) and 31.5°F (-0.3°C). March introduces a marginal temperature uplift, with average high-temperatures adjusting from February's wintry 38.3°F (3.5°C) to a chilly 46°F (7.8°C). Weather in March »Weather in April
April is a refreshing spring month in Morris Plains, New Jersey, with an average temperature ranging between min 41.7°F (5.4°C) and max 58.3°F (14.6°C). In Morris Plains, the onset of April comes with an increased average high-temperature, moving from March's chilly 46°F (7.8°C) to a refreshing 58.3°F (14.6°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Morris Plains, New Jersey, with an average temperature ranging between min 51.3°F (10.7°C) and max 68.9°F (20.5°C). Morris Plains sees a rise in temperature during May, with average high-temperatures transitioning from a refreshing 58.3°F (14.6°C) in April to a pleasant 68.9°F (20.5°C). Weather in May »Weather in June
June, the first month of the summer in Morris Plains, is a moderately hot month, with an average temperature varying between 58.8°F (14.9°C) and 77.4°F (25.2°C). Morris Plains in June denotes a subtle temperature transition, adjusting from an average high of an agreeable 68.9°F (20.5°C) in May to a warm 77.4°F (25.2°C). Weather in June »Weather in July
July, like June, in Morris Plains, New Jersey, is another warm summer month, with an average temperature varying between 83.7°F (28.7°C) and 65.7°F (18.7°C). July, known for its average high temperature of 83.7°F (28.7°C) and an average low temperature of 65.7°F (18.7°C), is the warmest month. For most parts of July, the heat index is evaluated at 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 Morris Plains, New Jersey, with an average temperature fluctuating between 64°F (17.8°C) and 81.5°F (27.5°C). Morris Plains starts August with an average high-temperature of a still warm 81.5°F (27.5°C), hinting at a minimal fluctuation from July. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Morris Plains, New Jersey, with an average temperature fluctuating between 74.5°F (23.6°C) and 57.2°F (14°C). Transition into September subtly marks a drop in the average high-temperature, moderately moving from 81.5°F (27.5°C) in August to a still moderately hot 74.5°F (23.6°C). Weather in September »Weather in October
October, like September, in Morris Plains, New Jersey, is another enjoyable autumn month, with an average temperature ranging between min 47.3°F (8.5°C) and max 62.2°F (16.8°C). The start of October signals a decrease in the average high-temperature, transitioning from a moderately hot 74.5°F (23.6°C) in September to a refreshing 62.2°F (16.8°C). Weather in October »Weather in November
November, the last month of the autumn in Morris Plains, is also a fresh month, with temperature in the range of an average low of 36.5°F (2.5°C) and an average high of 50.5°F (10.3°C). The move into November indicates a reduction in the average high-temperature, down from October's comfortable 62.2°F (16.8°C) to a cool 50.5°F (10.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Morris Plains, New Jersey, with an average temperature varying between 29.5°F (-1.4°C) and 40.8°F (4.9°C). With the onset of December, Morris Plains's average high-temperature adjusts, receding from November's cool 50.5°F (10.3°C) to a cold 40.8°F (4.9°C). Weather in December »Updated: Aug 2, 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
The coldest time of the year is January, with temperatures averaging a high of 34.9°F (1.6°C) and a low of 22.5°F (-5.3°C).
The months with the least rainfall are January, February and September Rain falls for 8.3 days and accumulates 1.57" (40mm) of rain.
In Morris Plains, during the entire year, the rain falls for 157.9 days and collects up to 27.05" (687mm) of precipitation.
January through May, November and December are months with snowfall.
Throughout the year, there are 24 snowfall days, and 9.72" (247mm) 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 months with the highest humidity are February, October and December, with an average relative humidity of 80%.
With an average of 4.6h of sunshine, February has the least sunshine of the year.
The month with the most snowfall is March, when snow falls for 5.2 days and typically aggregates up to 3.7" (94mm) 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.
The least humid month is April, with an average relative humidity of 74%.
June through October are months without snowfall.
June has the longest days of the year, with an average of 15h and 6min of daylight.
The months with the highest UV index in Morris Plains are June through August, with an average maximum UV index of 6.
Morris Plains, New Jersey, experiences its highest temperatures in July, with an average peak of 83.7°F (28.7°C) and a low of 65.7°F (18.7°C).
July is the month with the most rainfall. Rain falls for 17.6 days and accumulates 3.19" (81mm) of precipitation.
July has the most sunshine of the year, with an average of 10.3h of sunshine.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Morris Plains, NJ
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34.9°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
Morris Plains, 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:
29.99"Hg - Average pressure in September:
30.06"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
Morris Plains, NJ
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Morris Plains, NJ
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Morris Plains, NJ
- Average rainfall in January:
1.57" - Average rainfall in February:
1.57" - Average rainfall in March:
2.17" - Average rainfall in April:
2.24" - Average rainfall in May:
2.83" - Average rainfall in June:
2.56"
The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").
Average rainfall days
Morris Plains, NJ
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
9.1 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
Morris Plains, NJ
The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Morris Plains, NJ
- Average snowfall days in January:
6.6 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
0.7 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 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Morris Plains, 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:
4h and 54min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
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
Morris Plains, NJ
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
11 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
15 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
19 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).
Average UV index
Morris Plains, 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
Morris Plains, NJ
The months with the most cloud cover are February, March and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility
Morris Plains, NJ
The months with the highest visibility are January, February, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are May, June and September (5mi).
