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
The arrival of October signals a shift in temperature, down from a moderately hot 73.8°F (23.2°C) in September to a comfortable 61.3°F (16.3°C). An average low-temperature of 45.5°F (7.5°C) is observed during the October nights.Humidity
The least humid month in Harlan is October, with an average relative humidity of 75%.Rainfall
In Harlan, during October, the rain falls for 11.8 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Harlan, during the entire year, the rain falls for 140.8 days and collects up to 16.22" (412mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Harlan. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, in Harlan, there are 45.1 snowfall days, and 7.8" (198mm) of snow is accumulated.Daylight
In October, the average length of the day in Harlan is 11h and 5min.On the first day of the month, sunrise is at 7:37 am and sunset at 7:21 pm. On the last day of October, in Harlan, sunrise is at 8:10 am and sunset at 6:35 pm EDT.
Sunshine
In October, the average sunshine in Harlan is 6.2h.UV index
In October, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In October, the maximum UV index of 2 transforms into these recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the usual temperature for Harlan in October?
What is the least humid month in Harlan?
What is the average humidity in October in Harlan?
How many days does it rain in October in Harlan?
When does it start to snow in Harlan?
How many hours of daylight does Harlan have in October?
What time are sunrise and sunset in October in Harlan?
How long on average sun shines in October in Harlan?
What is the UV index reading in October in Harlan?
Average temperature in October
Harlan, IN
- Average high temperature in October: 61.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in October: 45.5°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in October
Harlan, IN
- Average pressure in October: 30.01"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Harlan, IN
- Average wind speed in October: 8.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in October
Harlan, IN
- Average humidity in October: 75%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in October
Harlan, IN
- Average rainfall in October: 1.14"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in October
Harlan, IN
- Average rainfall days in October: 11.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in October
Harlan, IN
- Average snowfall in October: 0.2"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Harlan, IN
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Harlan, IN
- 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: 6h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in October
Harlan, IN
- Average sunshine days in October: 16.8 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in October
Harlan, IN
- Average UV index in October: 2
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in October
Harlan, IN
- Average cloud cover in October: 41
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in October
Harlan, IN
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Harlan, Indiana, USA
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