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
With the onset of September, the average high-temperature subtly recedes from August's warm 75.9°F (24.4°C) to an agreeable 69.4°F (20.8°C). Throughout the month of September, Greenbush sees a steady low-temperature average of 59.2°F (15.1°C).Humidity
The average relative humidity in September is 78%.Rainfall
In Greenbush, during September, the rain falls for 10.5 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 119.1 rainfall days, and 10.83" (275mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:09 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:25 pm EDT.
Sunshine
In Greenbush, the average sunshine in September is 8.6h.UV index
In Greenbush, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding the Sun during its peak radiation time around midday is a healthy practice. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Greenbush in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Greenbush, MA
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in September
Greenbush, MA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Greenbush, MA
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity in September
Greenbush, MA
- Average humidity in September: 78%
The months with the highest relative humidity are June and July (79%).
The months with the lowest relative humidity are April and November (74%).
Average rainfall in September
Greenbush, MA
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is July (1.26").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in September
Greenbush, MA
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Greenbush, MA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Greenbush, MA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Greenbush, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Greenbush, MA
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (15.9 days).
Average UV index in September
Greenbush, MA
- Average UV index in September: 4
The months with the highest UV index are 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
Greenbush, MA
- Average cloud cover in September: 32
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Greenbush, MA
- Average visibility in September: 6mi
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).
Greenbush, Massachusetts, USA
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