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
The average high-temperature shows a slight dip in September, from August's 83.5°F (28.6°C) to a still warm 76.6°F (24.8°C). Ijamsville records an average temperature drop to a refreshing 58.6°F (14.8°C) in September.Humidity
In September, the average relative humidity is 77%.Rainfall
In Ijamsville, in September, it is raining for 14 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 161.7 rainfall days, and 31.89" (810mm) of precipitation is accumulated.Snowfall
In Ijamsville, snow does not fall in April, June through October.Daylight
In Ijamsville, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:38 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:52 pm EDT.
Sunshine
In Ijamsville, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Ijamsville is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. 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 Ijamsville in September?
What is the average humidity in September in Ijamsville?
How many days does it rain in September in Ijamsville?
When it does not snow in Ijamsville?
How many hours of daylight does Ijamsville have in September?
What time are sunrise and sunset in September in Ijamsville?
How many hours of sunshine does Ijamsville have in September?
What is the UV index reading in September in Ijamsville?
Average temperature in September
Ijamsville, MD
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in September
Ijamsville, MD
- Average pressure in September: 30.06"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
Ijamsville, MD
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Ijamsville, MD
- Average humidity in September: 77%
The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in September
Ijamsville, MD
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in September
Ijamsville, MD
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Ijamsville, MD
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.31").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in September
Ijamsville, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Ijamsville, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Ijamsville, MD
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in September
Ijamsville, MD
- Average UV index in September: 4
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, November and December (UV index 2).
Average cloud cover in September
Ijamsville, 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 30).
Average visibility in September
Ijamsville, 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).
Ijamsville, Maryland, USA
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