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 signals a considerable drop in Lewis's average high-temperature, reducing from a moderately hot 75°F (23.9°C) in September to a refreshing 60.4°F (15.8°C). During the month of October, Lewis anticipates a mean low-temperature of 43.7°F (6.5°C).Humidity
October is the least humid month in Lewis, with an average relative humidity of 69%.Rainfall
In Lewis, in October, it is raining for 8.6 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 118.7 rainfall days, and 20.79" (528mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, there are 32.3 snowfall days, and 9.41" (239mm) of snow is accumulated.Daylight
The average length of the day in October is 11h and 5min.On the first day of October in Lewis, sunrise is at 7:17 am and sunset at 7:01 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 6:16 pm CDT.
Sunshine
The average sunshine in October is 5.8h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Lewis. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 2 in October translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. When the Sun is at its strongest around midday, find shade and limit exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October in Lewis?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October?
When does it start to snow in Lewis?
How many hours of daylight does Lewis have in October?
When are sunrise and sunset in October?
How long on average sun shines in October?
What is the month with the lowest UV index?
What is the UV index reading in October?
Average temperature in October
Lewis, IA
- Average high temperature in October: 60.4°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 (28.4°F).
- Average low temperature in October: 43.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in October
Lewis, IA
- Average pressure in October: 30.01"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
Lewis, IA
- Average wind speed in October: 9.6mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in October
Lewis, IA
- Average humidity in October: 69%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).
Average rainfall in October
Lewis, IA
- Average rainfall in October: 1.42"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in October
Lewis, IA
- Average rainfall days in October: 8.6 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in October
Lewis, IA
- Average snowfall in October: 0.35"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Lewis, IA
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Lewis, IA
- 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: 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
Lewis, IA
- Average sunshine days in October: 20.7 days
The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in October
Lewis, 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
Lewis, 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 28).
Average visibility in October
Lewis, 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).
Lewis, Iowa, USA
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