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 in Lewiston, Idaho, signals a significant decrease in average high-temperatures, falling from September's warm 75°F (23.9°C) to a moderate 59.7°F (15.4°C). During October, Lewiston experiences a consistent low-temperature average of 42.3°F (5.7°C).Humidity
In October, the average relative humidity in Lewiston is 61%.Rainfall
In Lewiston, Idaho, in October, it is raining for 11.6 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 142.4 rainfall days, and 14.21" (361mm) of precipitation is accumulated.Snowfall
Months with snowfall in Lewiston are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Lewiston, Idaho, during the entire year, snow falls for 24.2 days and aggregates up to 10.16" (258mm) of snow.Daylight
The average length of the day in October is 10h and 53min.On the first day of October, sunrise is at 6:47 am and sunset at 6:27 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:34 pm PDT.
Sunshine
The average sunshine in October is 7.3h.UV index
In Lewiston, Idaho, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In October, the UV index of 3 transforms into the following advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What are October temperatures in Lewiston?
What is the average humidity in October in Lewiston?
How much does it rain in Lewiston in October?
When does it start to snow in Lewiston?
How many hours of daylight does Lewiston have in October?
What time are sunrise and sunset in October in Lewiston?
How long on average sun shines in October in Lewiston?
How high is the UV index in October in Lewiston?
Average temperature in October
Lewiston, ID
- Average high temperature in October: 59.7°F
The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is December (36.1°F).
- Average low temperature in October: 42.3°F
The month with the highest average low temperature is August (59.2°F).
The coldest month (with the lowest average low temperature) is December (24.4°F).
Average pressure in October
Lewiston, ID
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in October
Lewiston, ID
- Average wind speed in October: 4.8mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.3mph).
Average humidity in October
Lewiston, ID
- Average humidity in October: 61%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (38%).
Average rainfall in October
Lewiston, ID
- Average rainfall in October: 1.14"
The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in October
Lewiston, ID
- Average rainfall days in October: 11.6 days
The month with the highest number of rainy days is March (17.6 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in October
Lewiston, ID
- Average snowfall in October: 0.04"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Lewiston, ID
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is December (8.1 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
Lewiston, ID
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in October: 7h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in October
Lewiston, ID
- Average sunshine days in October: 18 days
The month with the most sunshine days is July (24 days).
The months with the least sunshine days are February and March (10.8 days).
Average UV index in October
Lewiston, ID
- Average UV index in October: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in October
Lewiston, ID
- Average cloud cover in October: 29
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in October
Lewiston, ID
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Lewiston, Idaho, USA
Weather forecast for your location
2. Allow the app to use your location
