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
September's onset introduces a mild reduction in the average high-temperature, from a moderately hot 81.9°F (27.7°C) in August to a still warm 75.6°F (24.2°C). During the nights in September, an average low-temperature of 54.5°F (12.5°C) is observed.Humidity
In September, the average relative humidity in Merrittstown is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 6.1 days and accumulates 0.28" (7mm) of precipitation.Snowfall
In Merrittstown, Pennsylvania, snow does not fall in May through October.Daylight
The average length of the day in September in Merrittstown is 12h and 26min.On the first day of September, sunrise is at 6:48 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:02 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Merrittstown, Pennsylvania, 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: The maximum daily UV index of 4 in September interprets into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. It's recommended to limit sun exposure when its radiation is at its peak during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the average September temperature in Merrittstown?
What is the average humidity in September in Merrittstown?
What is the driest month in Merrittstown?
How much does it rain in Merrittstown in September?
When it does not snow in Merrittstown?
How many hours of daylight does Merrittstown have in September?
What time are sunrise and sunset in September in Merrittstown?
How many hours of sunshine does Merrittstown have in September?
How high is the UV index in September in Merrittstown?
Average temperature in September
Merrittstown, PA
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Merrittstown, PA
- Average pressure in September: 30.05"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
Merrittstown, PA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Merrittstown, PA
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July, August and November (77%).
Average rainfall in September
Merrittstown, PA
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in September
Merrittstown, PA
- Average rainfall days in September: 6.1 days
The month with the highest number of rainy days is July (9.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Merrittstown, PA
- Average snowfall in September: 0"
The months with the highest snowfall are February and December (0.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Merrittstown, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Merrittstown, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Merrittstown, PA
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (17.3 days).
Average UV index in September
Merrittstown, 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, October, November and December (UV index 2).
Average cloud cover in September
Merrittstown, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Merrittstown, PA
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Merrittstown, Pennsylvania, USA
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