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
Mystic Grove's weather subtly changes with the onset of September, barely falling from a warm 78.4°F (25.8°C) in August to an agreeable 71.4°F (21.9°C). Throughout the month of September, Mystic Grove reports a steady low-temperature average of 53.4°F (11.9°C).Humidity
In Mystic Grove, the average relative humidity in September is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 13 days and typically collects 1.81" (46mm) of precipitation.Snowfall
June through September are months without snowfall in Mystic Grove.Daylight
In Mystic Grove, the average length of the day in September is 12h and 28min.On the first day of September in Mystic Grove, sunrise is at 6:14 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:30 pm EDT.
Sunshine
In Mystic Grove, Massachusetts, the average sunshine in September is 7.9h.UV index
The average daily maximum UV index in September in Mystic Grove is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the temperature in September in Mystic Grove?
What is the average humidity in September in Mystic Grove?
What is the driest month in Mystic Grove?
How many days does it rain in September in Mystic Grove?
When it does not snow in Mystic Grove?
Does it snow in Mystic Grove in September?
How many hours of daylight does Mystic Grove have in September?
When are sunrise and sunset in September in Mystic Grove?
How long on average sun shines in September in Mystic Grove?
What is the UV index intensity in September in Mystic Grove?
Average temperature in September
Mystic Grove, MA
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Mystic Grove, MA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Mystic Grove, MA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Mystic Grove, MA
- Average humidity in September: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Mystic Grove, MA
- Average rainfall in September: 1.81"
The wettest months (with the highest rainfall) are October and November (2.76").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Mystic Grove, MA
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in September
Mystic Grove, MA
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mystic Grove, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mystic Grove, 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: 7h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Mystic Grove, MA
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in September
Mystic Grove, MA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Mystic Grove, MA
- Average cloud cover in September: 43
The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Mystic Grove, MA
- Average visibility in September: 5mi
The months with the highest visibility are April and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and November (5mi).
Mystic Grove, Massachusetts, USA
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