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's arrival coincides with a drop in the average high-temperature, decreasing from September's agreeable 71.8°F (22.1°C) to a refreshing 57.7°F (14.3°C). Throughout October, an average low-temperature of 41.5°F (5.3°C) is experienced.Humidity
With an average relative humidity of 76%, October is the least humid month.Rainfall
In Harpers Ferry, during October, the rain falls for 9.5 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Harpers Ferry, during the entire year, the rain falls for 124.7 days and collects up to 22.56" (573mm) of precipitation.Snowfall
Months with snowfall in Harpers Ferry are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 1.1 snowfall days, it receives 0.28" (7mm) of snow. Throughout the year, in Harpers Ferry, there are 44.5 snowfall days, and 15.47" (393mm) of snow is accumulated.Daylight
In October, the average length of the day is 11h and 1min.On the first day of October, sunrise is at 7:02 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:57 pm CDT.
Sunshine
In October, the average sunshine in Harpers Ferry, Iowa, is 5.3h.UV index
In Harpers Ferry, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In October, the maximum UV index of 2 suggests these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October in Harpers Ferry?
What is the least humid month in Harpers Ferry?
What is the average humidity in October in Harpers Ferry?
How much does it rain in Harpers Ferry in October?
When does it start to snow in Harpers Ferry?
How many hours of daylight does Harpers Ferry have in October?
When is the sunrise / sunset in October in Harpers Ferry?
How long on average sun shines in October in Harpers Ferry?
How high is the UV index in October in Harpers Ferry?
Average temperature in October
Harpers Ferry, IA
- Average high temperature in October: 57.7°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in October: 41.5°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in October
Harpers Ferry, IA
- Average pressure in October: 29.99"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in October
Harpers Ferry, IA
- Average wind speed in October: 8.8mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in October
Harpers Ferry, IA
- Average humidity in October: 76%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall in October
Harpers Ferry, IA
- Average rainfall in October: 1.81"
The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in October
Harpers Ferry, IA
- Average rainfall days in October: 9.5 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in October
Harpers Ferry, IA
- Average snowfall in October: 0.28"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Harpers Ferry, IA
- Average snowfall days in October: 1.1 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Harpers Ferry, IA
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in October: 5h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in October
Harpers Ferry, IA
- Average sunshine days in October: 19 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in October
Harpers Ferry, IA
- Average UV index in October: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in October
Harpers Ferry, IA
- Average cloud cover in October: 41
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in October
Harpers Ferry, IA
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Harpers Ferry, Iowa, USA
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