Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
During Mercer's transition into October, the average high-temperature lessens, moving from an agreeable 72.9°F (22.7°C) in September to a refreshing 59.5°F (15.3°C). Mercer witnesses an average low-temperature of 43.9°F (6.6°C) throughout the month of October.Humidity
The average relative humidity in October is 83%.Rainfall
In Mercer, Pennsylvania, in October, during 16.7 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. Throughout the year, there are 180.8 rainfall days, and 36.65" (931mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.8 snowfall days, it receives 0.2" (5mm) of snow. In Mercer, during the entire year, snow falls for 76.2 days and aggregates up to 32.36" (822mm) of snow.Daylight
In Mercer, the average length of the day in October is 11h and 5min.On the first day of October, sunrise is at 7:18 am and sunset at 7:02 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 6:17 pm EDT.
Sunshine
In Mercer, the average sunshine in October is 4.9h.UV index
In October, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 2 in October transforms into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What is the average humidity in October?
How many days does it rain in October?
When does it start snowing?
How many hours of daylight does Mercer have in October?
What time are sunrise and sunset in October?
How many hours of sunshine does Mercer have in October?
How high is the UV index in October?
Average temperature in October
Mercer, PA
- Average high temperature in October: 59.5°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 October: 43.9°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in October
Mercer, PA
- Average pressure in October: 30.02"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 October
Mercer, PA
- Average wind speed in October: 6.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in October
Mercer, PA
- Average humidity in October: 83%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are April, May and July (79%).
Average rainfall in October
Mercer, PA
- Average rainfall in October: 3.27"
The wettest months (with the highest rainfall) are April and June (3.74").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in October
Mercer, PA
- Average rainfall days in October: 16.7 days
The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in October
Mercer, PA
- Average snowfall in October: 0.2"
The month with the highest snowfall is January (8.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Mercer, PA
- Average snowfall days in October: 0.8 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Mercer, PA
- Average daylight in October: 11h and 1min
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 October: 4h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in October
Mercer, PA
- Average sunshine days in October: 11.7 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (6.2 days).
Average UV index in October
Mercer, PA
- Average UV index in October: 2
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 October
Mercer, PA
- Average cloud cover in October: 51
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in October
Mercer, PA
- Average visibility in October: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Mercer, Pennsylvania, USA
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