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
September is characterized by a mild reduction in the average high-temperature, from a moderately hot 82.6°F (28.1°C) in August to a still warm 76.6°F (24.8°C). The temperature in Galestown lowers to an average of 62.8°F (17.1°C) during September nights.Humidity
May, August and September, with an average relative humidity of 80%, are the most humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 7.7 days and typically collects 0.39" (10mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Galestown, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:46 pm EDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
The average daily maximum UV index in September in Galestown is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 5 in September transforms into this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are September temperatures in Galestown?
What is the most humid month in Galestown?
What is the average humidity in September in Galestown?
What is the driest month in Galestown?
How many days does it rain in September in Galestown?
When it does not snow in Galestown?
What is the average length of the day in September in Galestown?
When are sunrise and sunset in September in Galestown?
How long on average sun shines in September in Galestown?
How high is the UV index in September in Galestown?
Average temperature in September
Galestown, MD
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in September
Galestown, MD
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Galestown, MD
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Galestown, MD
- Average humidity in September: 80%
The months with the highest relative humidity are May, August and September (80%).
The month with the lowest relative humidity is January (74%).
Average rainfall in September
Galestown, MD
- Average rainfall in September: 0.39"
The wettest months (with the highest rainfall) are July and August (1.06").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in September
Galestown, MD
- Average rainfall days in September: 7.7 days
The month with the highest number of rainy days is July (12 days).
The month with the least rainy days is November (4.9 days).
Average snowfall in September
Galestown, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Galestown, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Galestown, MD
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Galestown, MD
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is November (23.9 days).
The month with the least sunshine days is July (15.7 days).
Average UV index in September
Galestown, MD
- Average UV index in September: 5
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 and December (UV index 2).
Average cloud cover in September
Galestown, MD
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Galestown, MD
- 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).
Galestown, Maryland, USA
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