September weather forecastRichlandtown, PA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Richlandtown, Pennsylvania, with an average temperature varying between 75.6°F (24.2°C) and 56.5°F (13.6°C).Temperature
A minor decrease in the average high-temperature is observed during September, shifting from a warm 82.4°F (28°C) in August to a still moderately hot 75.6°F (24.2°C). Throughout the nights in September, an average low-temperature of 56.5°F (13.6°C) is noted.Humidity
In Richlandtown, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 12 days and typically collects 1.89" (48mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:29 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:44 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Richlandtown, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Undertake protective steps - Preventing sun damage is advised. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Richlandtown, PA
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
Richlandtown, 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
Richlandtown, PA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Richlandtown, PA
- Average humidity in September: 78%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in September
Richlandtown, PA
- Average rainfall in September: 1.89"
The wettest months (with the highest rainfall) are May and July (3.07").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Richlandtown, PA
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Richlandtown, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Richlandtown, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Richlandtown, PA
- Average daylight in September: 12h and 24min
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 42min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Richlandtown, PA
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Richlandtown, PA
- Average UV index in September: 4
The months with the highest UV index are May, 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
Richlandtown, PA
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Richlandtown, PA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, May, September, October and December (5mi).
