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 modest decline in the average high-temperature is seen during September, decreasing from a moderately hot 77.5°F (25.3°C) in August to a pleasant 71.1°F (21.7°C). In the month of September, Lake Harmony experiences an average low-temperature of 52.3°F (11.3°C).Humidity
In Lake Harmony, Pennsylvania, the average relative humidity in September is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 2.01" (51mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Lake Harmony, Pennsylvania, is 12h and 28min.On the first day of September in Lake Harmony, Pennsylvania, sunrise is at 6:29 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm EDT.
Sunshine
In September, the average sunshine in Lake Harmony is 8.4h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. Minimize direct exposure to the Sun during midday when its radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What are the temperatures in Lake Harmony in September?
What is the average humidity in September in Lake Harmony?
What is the driest month in Lake Harmony?
How many days does it rain in September in Lake Harmony?
When it does not snow in Lake Harmony?
Does it snow in Lake Harmony in September?
How many hours of daylight does Lake Harmony have in September?
When is the sunrise / sunset in September in Lake Harmony?
How long on average sun shines in September in Lake Harmony?
What is the UV index reading in September in Lake Harmony?
Average temperature in September
Lake Harmony, PA
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Lake Harmony, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Lake Harmony, PA
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Lake Harmony, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in September
Lake Harmony, PA
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Lake Harmony, PA
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (9.2 days).
Average snowfall in September
Lake Harmony, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (9.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lake Harmony, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lake Harmony, 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 18min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Lake Harmony, PA
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is September (14.8 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in September
Lake Harmony, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Lake Harmony, PA
- Average cloud cover in September: 43
The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Lake Harmony, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Lake Harmony, Pennsylvania, USA
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