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 Saint Clair's transition into October, the average high-temperature lessens, moving from an agreeable 73°F (22.8°C) in September to a refreshing 60.8°F (16°C). Saint Clair's average low-temperature in the month of October is recorded at a chilly 44.6°F (7°C).Humidity
In October, the average relative humidity in Saint Clair is 81%.Rainfall
In October, in Saint Clair, Pennsylvania, the rain falls for 13.9 days. Throughout October, 2.95" (75mm) of precipitation is accumulated. In Saint Clair, during the entire year, the rain falls for 172.9 days and collects up to 34.21" (869mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Saint Clair. October is the first month it typically snows in Saint Clair. Throughout October, in the average 0.2 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, there are 39.7 snowfall days, and 20.47" (520mm) of snow is accumulated.Daylight
In Saint Clair, the average length of the day in October is 11h and 7min.On the first day of October in Saint Clair, sunrise is at 7:02 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:01 pm EDT.
Sunshine
The average sunshine in October is 5.2h.UV index
In Saint Clair, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 3 in October leads to these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What is the usual temperature for Saint Clair in October?
What is the average humidity in October in Saint Clair?
How many days does it rain in October in Saint Clair?
When does it start snowing in Saint Clair?
How many hours of daylight does Saint Clair have in October?
When is the sunrise / sunset in October in Saint Clair?
How long on average sun shines in October in Saint Clair?
What is the UV index intensity in October in Saint Clair?
Average temperature in October
Saint Clair, PA
- Average high temperature in October: 60.8°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in October: 44.6°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in October
Saint Clair, PA
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in October
Saint Clair, PA
- Average wind speed in October: 6.7mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in October
Saint Clair, PA
- Average humidity in October: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in October
Saint Clair, PA
- Average rainfall in October: 2.95"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in October
Saint Clair, PA
- Average rainfall days in October: 13.9 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and November (10.8 days).
Average snowfall in October
Saint Clair, PA
- Average snowfall in October: 0.43"
The month with the highest snowfall is January (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Saint Clair, PA
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Saint Clair, PA
- Average daylight in October: 11h and 1min
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 October: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 24min).
Average sunshine days in October
Saint Clair, PA
- Average sunshine days in October: 13.7 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in October
Saint Clair, PA
- Average UV index in October: 3
The month with the highest UV index is 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 October
Saint Clair, PA
- Average cloud cover in October: 45
The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in October
Saint Clair, PA
- Average visibility in October: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Saint Clair, Pennsylvania, USA
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