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
In October, the average high-temperature decreases considerably from a warm 75°F (23.9°C) in September to a mild 59.7°F (15.4°C). Harlan sees an average low-temperature of 44.1°F (6.7°C) during October.Humidity
October is the least humid month in Harlan, with an average relative humidity of 68%.Rainfall
In Harlan, in October, it is raining for 8.5 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, there are 113.5 rainfall days, and 15.71" (399mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Harlan, Iowa. October is the first month it typically snows. Throughout October, in the average 0.7 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, in Harlan, there are 31.5 snowfall days, and 7.13" (181mm) of snow is accumulated.Daylight
The average length of the day in October in Harlan is 11h and 4min.On the first day of October in Harlan, sunrise is at 7:18 am and sunset at 7:02 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 6:16 pm CDT.
Sunshine
The average sunshine in October in Harlan, Iowa, is 5.9h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 2 in October translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. 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 are the temperatures in 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 snowing in Harlan?
How many hours of daylight does Harlan have in October?
What time are sunrise and sunset in October in Harlan?
How many hours of sunshine does Harlan have in October?
What are the months with the lowest UV index in Harlan?
What is the UV index reading in October in Harlan?
Average temperature in October
Harlan, IA
- Average high temperature in October: 59.7°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in October: 44.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in October
Harlan, IA
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in October
Harlan, IA
- Average wind speed in October: 9.7mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in October
Harlan, IA
- Average humidity in October: 68%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (68%).
Average rainfall in October
Harlan, IA
- Average rainfall in October: 1.06"
The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in October
Harlan, IA
- Average rainfall days in October: 8.5 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in October
Harlan, IA
- Average snowfall in October: 0.24"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Harlan, IA
- Average snowfall days in October: 0.7 days
The month with the highest number of snowfall days is January (8.3 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, IA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in October: 5h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in October
Harlan, IA
- Average sunshine days in October: 20.5 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in October
Harlan, IA
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in October
Harlan, IA
- Average cloud cover in October: 35
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in October
Harlan, IA
- 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).
Harlan, Iowa, USA
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