October weather forecastSouth Mountain, PA
October
Weather in October
October, like September, in South Mountain, Pennsylvania, is another comfortable autumn month, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 63.1°F (17.3°C).Temperature
The commencement of October indicates a shift in the average high-temperature, receding from September's moderately hot 74.8°F (23.8°C) to a comfortable 63.1°F (17.3°C). Throughout October, South Mountain anticipates an average low-temperature of 46.2°F (7.9°C).Humidity
The months with the highest humidity are February, May and October, with an average relative humidity of 80%.Rainfall
In South Mountain, during October, the rain falls for 9.3 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 125.3 rainfall days, and 10.59" (269mm) of precipitation is accumulated.Snowfall
In South Mountain, Pennsylvania, snow does not fall in May through October.Daylight
The average length of the day in October is 11h and 8min.On the first day of October, sunrise is at 7:06 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 6:08 pm EDT.
Sunshine
In October, the average sunshine is 5.4h.UV index
In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 3 in October transforms into the following instructions:
Adopt protective measures - It is advised to guard against sun damage. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
South Mountain, PA
- Average high temperature in October: 63.1°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in October: 46.2°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in October
South Mountain, PA
- Average pressure in October: 30.04"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 October
South Mountain, PA
- Average wind speed in October: 6.5mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in October
South Mountain, PA
- Average humidity in October: 80%
The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall in October
South Mountain, PA
- Average rainfall in October: 0.94"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in October
South Mountain, PA
- Average rainfall days in October: 9.3 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in October
South Mountain, PA
- Average snowfall in October: 0"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
South Mountain, PA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
South Mountain, PA
- Average daylight in October: 11h and 6min
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 October: 5h and 24min
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 October
South Mountain, PA
- Average sunshine days in October: 19.5 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in October
South Mountain, PA
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
South Mountain, PA
- Average cloud cover in October: 42
The months with the most cloud cover are January and February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in October
South Mountain, PA
- Average visibility in October: 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).





