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
October indicates a shift in the average high-temperature, from September's moderately hot 76.1°F (24.5°C) to a comfortable 63.7°F (17.6°C). During the nights in October, the temperature in Norristown, Pennsylvania, averages to a frosty 48.7°F (9.3°C).Humidity
February and October, with an average relative humidity of 79%, are the most humid months.Rainfall
In October, in Norristown, Pennsylvania, the rain falls for 11 days. Throughout October, 1.1" (28mm) of precipitation is accumulated. Throughout the year, in Norristown, there are 138.2 rainfall days, and 15.59" (396mm) of precipitation is accumulated.Snowfall
April, June through November are months without snowfall.Daylight
In Norristown, the average length of the day in October is 11h and 8min.On the first day of October in Norristown, sunrise is at 6:58 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:59 pm EDT.
Sunshine
The average sunshine in October in Norristown is 5.5h.UV index
In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 during October translates into the following guidance:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What are October temperatures in Norristown?
What are the most humid months in Norristown?
What is the average humidity in October in Norristown?
How many days does it rain in October in Norristown?
When it does not snow in Norristown?
How many hours of daylight does Norristown have in October?
When are sunrise and sunset in October in Norristown?
How many hours of sunshine does Norristown have in October?
What is the UV index reading in October in Norristown?
Average temperature in October
Norristown, PA
- Average high temperature in October: 63.7°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in October: 48.7°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in October
Norristown, PA
- Average pressure in October: 30.03"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
Norristown, PA
- Average wind speed in October: 6.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in October
Norristown, PA
- Average humidity in October: 79%
The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in October
Norristown, PA
- Average rainfall in October: 1.1"
The wettest month (with the highest rainfall) is July (1.89").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in October
Norristown, PA
- Average rainfall days in October: 11 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in October
Norristown, PA
- Average snowfall in October: 0"
The months with the highest snowfall are February and March (0.55").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in October
Norristown, PA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Norristown, 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 24min).
- Average sunshine in October: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in October
Norristown, PA
- Average sunshine days in October: 18.2 days
The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are May and June (12.8 days).
Average UV index in October
Norristown, PA
- Average UV index in October: 3
The months with the highest UV index are May, June, July and August (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
Norristown, PA
- Average cloud cover in October: 42
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in October
Norristown, PA
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Norristown, Pennsylvania, USA
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