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 shift from August to September coincides with a small decrease in the average high-temperature, down to a still moderately hot 74.3°F (23.5°C) from 81.7°F (27.6°C). An average low-temperature of 55.4°F (13°C) marks the month of September in Guilford.Humidity
The average relative humidity in September in Guilford is 79%.Rainfall
In Guilford, during September, the rain falls for 13.9 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, in Guilford, there are 156 rainfall days, and 27.2" (691mm) of precipitation is accumulated.Snowfall
In Guilford, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:53 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What is the average September temperature in Guilford?
What is the average humidity in September in Guilford?
How many days does it rain in September in Guilford?
When it does not snow in Guilford?
Does it snow in Guilford in September?
How many hours of daylight does Guilford have in September?
When is the sunrise / sunset in September in Guilford?
How long on average sun shines in September in Guilford?
What is the UV index reading in September in Guilford?
Average temperature in September
Guilford, PA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in September
Guilford, PA
- 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
Guilford, PA
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Guilford, PA
- Average humidity in September: 79%
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall in September
Guilford, PA
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in September
Guilford, PA
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Guilford, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Guilford, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Guilford, PA
- Average daylight in September: 12h and 2min
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 24min).
- Average sunshine in September: 8h and 3min
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 24min).
Average sunshine days in September
Guilford, PA
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in September
Guilford, PA
- Average UV index in September: 4
The months with the highest UV index are June and 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
Guilford, PA
- Average cloud cover in September: 40
The months with the most cloud cover are January, February and December (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Guilford, PA
- Average visibility in September: 5mi
The months with the highest visibility are April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, August, September and October (5mi).
Guilford, Pennsylvania, USA
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