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
With the onset of October, Herndon's average high-temperature adjusts, receding from September's moderately hot 80.8°F (27.1°C) to an agreeable 69.1°F (20.6°C). Herndon experiences an average nighttime temperature of 50.4°F (10.2°C) in the month of October.Humidity
With an average relative humidity of 72%, October is the least humid month in Herndon.Rainfall
In Herndon, during October, the rain falls for 11.9 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Herndon, during the entire year, the rain falls for 179.3 days and collects up to 39.76" (1010mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. October is the first month it typically snows in Herndon, Kentucky. Throughout October, in the average 0.3 snowfall days, it receives 0.16" (4mm) of snow. In Herndon, Kentucky, during the entire year, snow falls for 15.8 days and aggregates up to 5.35" (136mm) of snow.Daylight
The average length of the day in October is 11h and 14min.On the first day of October, sunrise is at 6:46 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:54 pm CDT.
Sunshine
In Herndon, the average sunshine in October is 6.8h.UV index
In Herndon, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In October, the maximum UV index of 3 suggests these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Herndon in October?
What is the least humid month in Herndon?
What is the average humidity in October in Herndon?
How many days does it rain in October in Herndon?
When does it start snowing in Herndon?
How many hours of daylight does Herndon have in October?
When is the sunrise / sunset in October in Herndon?
How many hours of sunshine does Herndon have in October?
What is the UV index reading in October in Herndon?
Average temperature in October
Herndon, KY
- Average high temperature in October: 69.1°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (42.6°F).
- Average low temperature in October: 50.4°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in October
Herndon, KY
- Average pressure in October: 30.06"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in October
Herndon, KY
- Average wind speed in October: 7.3mph
The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in October
Herndon, KY
- Average humidity in October: 72%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Herndon, KY
- Average rainfall in October: 2.76"
The wettest month (with the highest rainfall) is February (4.06").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in October
Herndon, KY
- Average rainfall days in October: 11.9 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (10.8 days).
Average snowfall in October
Herndon, KY
- Average snowfall in October: 0.16"
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Herndon, KY
- Average snowfall days in October: 0.3 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Herndon, KY
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in October: 6h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in October
Herndon, KY
- Average sunshine days in October: 17.8 days
The months with the most sunshine days are October and November (17.8 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in October
Herndon, KY
- 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 and December (UV index 2).
Average cloud cover in October
Herndon, KY
- Average cloud cover in October: 34
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in October
Herndon, KY
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Herndon, Kentucky, USA
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