Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a warm 82°F (27.8°C) in August to a still moderately hot 75.4°F (24.1°C). Montgomery cools down to an average low-temperature of 57.2°F (14°C) throughout the month of September.Humidity
In Montgomery, New Jersey, the average relative humidity in September is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 8.5 days and accumulates 0.63" (16mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Montgomery, the average length of the day in September is 12h and 27min.On the first day of September in Montgomery, New Jersey, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:42 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What are September temperatures in Montgomery?
What is the average humidity in September in Montgomery?
What is the driest month in Montgomery?
How many days does it rain in September in Montgomery?
When it does not snow in Montgomery?
What is the average length of the day in September in Montgomery?
When are sunrise and sunset in September in Montgomery?
How long on average sun shines in September in Montgomery?
What is the UV index intensity in September in Montgomery?
Average temperature in September
Montgomery, NJ
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in September
Montgomery, NJ
- Average pressure in September: 30.06"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 in September
Montgomery, NJ
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Montgomery, NJ
- Average humidity in September: 78%
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Montgomery, NJ
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in September
Montgomery, NJ
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
Montgomery, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.1").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Montgomery, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Montgomery, NJ
- Average daylight in September: 12h and 2min
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 September: 8h and 3min
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 30min).
Average sunshine days in September
Montgomery, NJ
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is June (15.6 days).
Average UV index in September
Montgomery, NJ
- Average UV index in September: 4
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 in September
Montgomery, NJ
- Average cloud cover in September: 40
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Montgomery, NJ
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).
Montgomery, New Jersey, USA
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