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 moderate decline in average high-temperatures is noted in September, moving from a moderately hot 80.8°F (27.1°C) in August to a still warm 74.3°F (23.5°C). An average temperature of 54.3°F (12.4°C) is recorded during the nights in September.Humidity
In Halifax, the average relative humidity in September is 79%.Rainfall
In Halifax, in September, during 11 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Halifax, Pennsylvania, during the entire year, the rain falls for 132.6 days and collects up to 14.53" (369mm) of precipitation.Snowfall
In Halifax, Pennsylvania, snow does not fall in June through October.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:51 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in Halifax?
How many hours of daylight does Halifax have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Halifax?
Average temperature in September
Halifax, PA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Halifax, PA
- Average pressure in September: 30.07"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Halifax, PA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Halifax, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in September
Halifax, PA
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is July (1.77").
The driest months (with the least rainfall) are February and November (0.87").
Average rainfall days in September
Halifax, PA
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Halifax, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Halifax, 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, September and October (0 days).
Average daylight in September /
Average sunshine in September
Halifax, 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 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
Halifax, PA
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (20 days).
The months with the least sunshine days are May and July (12.8 days).
Average UV index in September
Halifax, PA
- 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, March, November and December (UV index 2).
Average cloud cover in September
Halifax, PA
- Average cloud cover in September: 39
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Halifax, PA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, May, August, September and October (5mi).
Halifax, Pennsylvania, USA
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