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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 80.6°F (27°C) to a still warm 74.5°F (23.6°C). In Forest Hill, a significant divergence from daytime highs is recorded, with average lows of 52.3°F (11.3°C) during September nights.Humidity
The average relative humidity in September in Forest Hill is 80%.Rainfall
September is the month with the least rainfall in Forest Hill. Rain falls for 14.1 days and accumulates 1.34" (34mm) of precipitation.Snowfall
In Forest Hill, snow does not fall in June through September.Daylight
In September, the average length of the day in Forest Hill, West Virginia, is 12h and 25min.On the first day of the month, sunrise is at 6:54 am and sunset at 7:51 pm. On the last day of September, in Forest Hill, sunrise is at 7:18 am and sunset at 7:07 pm EDT.
Sunshine
In Forest Hill, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Forest Hill in September?
What is the average humidity in September in Forest Hill?
What is the driest month in Forest Hill?
How much does it rain in Forest Hill in September?
When it does not snow in Forest Hill?
Does it snow in Forest Hill in September?
How many hours of daylight does Forest Hill have in September?
What time are sunrise and sunset in September in Forest Hill?
How many hours of sunshine does Forest Hill have in September?
How high is the UV index in September in Forest Hill?
Average temperature in September
Forest Hill, WV
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Forest Hill, WV
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Forest Hill, WV
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Forest Hill, WV
- Average humidity in September: 80%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are June, July and November (78%).
Average rainfall in September
Forest Hill, WV
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in September
Forest Hill, WV
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Forest Hill, WV
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Forest Hill, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.5 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, WV
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Forest Hill, WV
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is May (10 days).
Average UV index in September
Forest Hill, WV
- Average UV index in September: 4
The month with the highest UV index is June (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, WV
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Forest Hill, WV
- Average visibility in September: 4mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (5mi).
The months with the lowest visibility are May and September (4mi).
Forest Hill, West Virginia, USA
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