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
In September, the meteorological conditions change slightly, with the average high-temperature moving from a warm 76.6°F (24.8°C) in August to a pleasant 70.9°F (21.6°C). Guys Mills throughout September, experiences an average nighttime temperature of 54°F (12.2°C).Humidity
In Guys Mills, the average relative humidity in September is 81%.Rainfall
September is the month with the least rainfall. Rain falls for 15.2 days and accumulates 2.4" (61mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:46 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:02 pm EDT.
Sunshine
The average sunshine in September in Guys Mills is 8.2h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Guys Mills have in September?
What time are sunrise and sunset in September in Guys Mills?
How many hours of sunshine does Guys Mills have in September?
How high is the UV index in September?
Average temperature in September
Guys Mills, PA
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in September
Guys Mills, PA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Guys Mills, PA
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in September
Guys Mills, PA
- Average humidity in September: 81%
The month with the highest relative humidity is February (90%).
The months with the lowest relative humidity are April and May (80%).
Average rainfall in September
Guys Mills, PA
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is April (3.62").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days in September
Guys Mills, PA
- Average rainfall days in September: 15.2 days
The months with the highest number of rainy days are June and July (18.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in September
Guys Mills, PA
- Average snowfall in September: 0"
The month with the highest snowfall is December (10.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Guys Mills, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Guys Mills, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in September
Guys Mills, PA
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is September (11.6 days).
The month with the least sunshine days is January (5.1 days).
Average UV index in September
Guys Mills, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Guys Mills, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Guys Mills, PA
- Average visibility in September: 5mi
The months with the highest visibility are April and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Guys Mills, Pennsylvania, USA
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