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 transition into September involves a small decrease in the average high-temperature, dipping slightly from 82.2°F (27.9°C) in August to a still moderately hot 76.1°F (24.5°C). An average temperature of 59.4°F (15.2°C) is recorded during the nights in September.Humidity
In September, the average relative humidity in Forest Hill, Maryland, is 77%.Rainfall
In Forest Hill, Maryland, in September, it is raining for 13.2 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, in Forest Hill, there are 155.7 rainfall days, and 32.64" (829mm) of precipitation is accumulated.Snowfall
In Forest Hill, snow does not fall in June through October.Daylight
The average length of the day in September in Forest Hill is 12h and 26min.On the first day of September in Forest Hill, sunrise is at 6:34 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In Forest Hill, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What is the usual temperature for Forest Hill in September?
What is the average humidity in September in Forest Hill?
How much does it rain in Forest Hill in September?
When it does not snow in Forest Hill?
What is the average length of the day in September in Forest Hill?
When are sunrise and sunset in September in Forest Hill?
How many hours of sunshine does Forest Hill have in September?
What is the UV index intensity in September in Forest Hill?
Average temperature in September
Forest Hill, MD
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in September
Forest Hill, MD
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Forest Hill, MD
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Forest Hill, MD
- Average humidity in September: 77%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Forest Hill, MD
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is February (2.09").
Average rainfall days in September
Forest Hill, MD
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Forest Hill, MD
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Forest Hill, MD
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Forest Hill, 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 24min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Forest Hill, MD
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in September
Forest Hill, 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
Forest Hill, MD
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Forest Hill, 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).
Forest Hill, Maryland, USA
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