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 onset of September is marked by a minor decrease in temperature, transitioning from a warm 78.4°F (25.8°C) in August to a pleasant 72.5°F (22.5°C). In September, the nighttime temperature in Andreas lowers to an average of 53.6°F (12°C).Humidity
In September, the average relative humidity in Andreas is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 13.1 days and accumulates 2.01" (51mm) of precipitation.Snowfall
In Andreas, Pennsylvania, snow does not fall in June through September.Daylight
In Andreas, Pennsylvania, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:30 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:46 pm EDT.
Sunshine
In Andreas, Pennsylvania, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the average September temperature in Andreas?
What is the average humidity in September in Andreas?
What is the driest month in Andreas?
How much does it rain in Andreas in September?
When it does not snow in Andreas?
Does it snow in Andreas in September?
What is the average length of the day in September in Andreas?
When are sunrise and sunset in September in Andreas?
How many hours of sunshine does Andreas have in September?
How high is the UV index in September in Andreas?
Average temperature in September
Andreas, PA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Andreas, PA
- Average pressure in September: 30.06"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
Andreas, PA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Andreas, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Andreas, PA
- Average rainfall in September: 2.01"
The wettest months (with the highest rainfall) are May, July and August (3.19").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Andreas, PA
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (9.6 days).
Average snowfall in September
Andreas, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Andreas, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Andreas, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Andreas, PA
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in September
Andreas, PA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Andreas, PA
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Andreas, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Andreas, Pennsylvania, USA
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