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 arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's warm 85.5°F (29.7°C) to a still moderately hot 79°F (26.1°C). Welcome witnesses a consistent average low-temperature of 62.2°F (16.8°C) throughout September.Humidity
In September, the average relative humidity is 77%.Rainfall
September is the month with the least rainfall in Welcome. Rain falls for 13.3 days and accumulates 1.97" (50mm) of precipitation.Snowfall
May through October are months without snowfall in Welcome.Daylight
In Welcome, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:52 pm EDT.
Sunshine
In September, the average sunshine in Welcome is 8.8h.UV index
In Welcome, Maryland, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, an average UV index of 5 transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What are September temperatures in Welcome?
What is the average humidity in September in Welcome?
What is the driest month in Welcome?
How many days does it rain in September in Welcome?
When it does not snow in Welcome?
What is the average length of the day in September in Welcome?
What time are sunrise and sunset in September in Welcome?
How many hours of sunshine does Welcome have in September?
What is the UV index intensity in September in Welcome?
Average temperature in September
Welcome, MD
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in September: 62.2°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 (28.8°F).
Average pressure in September
Welcome, 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
Welcome, MD
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Welcome, MD
- Average humidity in September: 77%
The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Welcome, MD
- Average rainfall in September: 1.97"
The wettest months (with the highest rainfall) are July and August (3.19").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Welcome, MD
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in September
Welcome, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Welcome, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Welcome, 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Welcome, MD
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in September
Welcome, 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, February and December (UV index 2).
Average cloud cover in September
Welcome, MD
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Welcome, 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).
Welcome, Maryland, USA
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