October weather forecastPorthill, ID
October
Weather in October
October, the same as September, in Porthill, Idaho, is a frosty autumn month, with an average temperature fluctuating between 31.5°F (-0.3°C) and 49.1°F (9.5°C).Temperature
In October, the meteorological conditions markedly change with the average high-temperature descending from an enjoyable 65.8°F (18.8°C) in September to a frosty 49.1°F (9.5°C). An average low-temperature of 31.5°F (-0.3°C) is noted in Porthill during the month of October.Humidity
The average relative humidity in October in Porthill is 77%.Rainfall
In Porthill, during October, the rain falls for 13.4 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Porthill, during the entire year, the rain falls for 157.1 days and collects up to 21.61" (549mm) of precipitation.Snowfall
January through April, September through December are months with snowfall. In October, in Porthill, it is snowing for 1.5 days. Throughout October, 0.75" (19mm) of snow is accumulated. In Porthill, during the entire year, snow falls for 70.6 days and aggregates up to 41.77" (1061mm) of snow.Daylight
In Porthill, the average length of the day in October is 10h and 46min.On the first day of October in Porthill, sunrise is at 7:46 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 8:32 am and sunset at 6:26 pm MDT.
Sunshine
In October, the average sunshine is 6.3h.UV index
In October, the average daily maximum UV index in Porthill 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: A maximum daily UV index of 2 during October morphs into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Porthill, ID
- Average high temperature in October: 49.1°F
The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (27.3°F).
- Average low temperature in October: 31.5°F
The month with the highest average low temperature is August (47.7°F).
The coldest months (with the lowest average low temperature) are January and December (16.3°F).
Average pressure in October
Porthill, ID
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Porthill, ID
- Average wind speed in October: 3.7mph
The windiest month (with the highest average wind speed) is June (4.3mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in October
Porthill, ID
- Average humidity in October: 77%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (55%).
Average rainfall in October
Porthill, ID
- Average rainfall in October: 1.93"
The wettest month (with the highest rainfall) is December (2.76").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in October
Porthill, ID
- Average rainfall days in October: 13.4 days
The month with the highest number of rainy days is April (19.7 days).
The month with the least rainy days is August (6.5 days).
Average snowfall in October
Porthill, ID
- Average snowfall in October: 0.75"
The month with the highest snowfall is January (11.02").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in October
Porthill, ID
- Average snowfall days in October: 1.5 days
The month with the highest number of snowfall days is December (17.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Porthill, ID
- Average daylight in October: 10h and 48min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in October: 6h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in October
Porthill, ID
- Average sunshine days in October: 15.5 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is March (7.7 days).
Average UV index in October
Porthill, ID
- Average UV index in October: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in October
Porthill, ID
- Average cloud cover in October: 40
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in October
Porthill, ID
- Average visibility in October: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
