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's onset corresponds with a subtle shift in the average high-temperature, slightly moving from 85.8°F (29.9°C) in August to a still warm 78.4°F (25.8°C). During the month of September, the temperature in Martin's Additions generally drops to a low average of 61.5°F (16.4°C).Humidity
The average relative humidity in September in Martin's Additions is 73%.Rainfall
In Martin's Additions, during September, the rain falls for 12.5 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 150.3 rainfall days, and 28.66" (728mm) of precipitation is accumulated.Snowfall
In Martin's Additions, snow does not fall in May through October.Daylight
In Martin's Additions, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:37 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:52 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake protective steps - Preventing sun damage is advised. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
What is the usual temperature for Martin's Additions in September?
What is the average humidity in September in Martin's Additions?
How many days does it rain in September in Martin's Additions?
When it does not snow in Martin's Additions?
How many hours of daylight does Martin's Additions have in September?
What time are sunrise and sunset in September in Martin's Additions?
How long on average sun shines in September in Martin's Additions?
How high is the UV index in September in Martin's Additions?
Average temperature in September
Martin's Additions, MD
- Average high temperature in September: 78.4°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in September
Martin's Additions, MD
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Martin's Additions, MD
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Martin's Additions, MD
- Average humidity in September: 73%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Martin's Additions, MD
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in September
Martin's Additions, MD
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Martin's Additions, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Martin's Additions, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Martin's Additions, MD
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).
Average sunshine days in September
Martin's Additions, MD
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is November (20.4 days).
The months with the least sunshine days are May and July (12.3 days).
Average UV index in September
Martin's Additions, 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, November and December (UV index 2).
Average cloud cover in September
Martin's Additions, MD
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Martin's Additions, MD
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Martin's Additions, Maryland, USA
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