October weather forecastPiedmont, WA
October
Weather in October
October, like September, in Piedmont, Washington, is a cool autumn month, with an average temperature fluctuating between 53.1°F (11.7°C) and 41.5°F (5.3°C).Temperature
October's arrival coincides with a drop in the average high-temperature, decreasing from September's refreshing 62.6°F (17°C) to a cool 53.1°F (11.7°C). Piedmont usually reports an average low-temperature of 41.5°F (5.3°C) during the month of October.Humidity
The average relative humidity in October in Piedmont, Washington, is 83%.Rainfall
In Piedmont, in October, during 13.2 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Piedmont, Washington, during the entire year, the rain falls for 150.3 days and collects up to 17.36" (441mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Piedmont, the average length of the day in October is 10h and 49min.On the first day of the month, sunrise is at 7:15 am and sunset at 6:53 pm. On the last day of October, sunrise is at 8:00 am and sunset at 5:57 pm PDT.
Sunshine
In Piedmont, the average sunshine in October is 5.1h.UV index
In Piedmont, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In October, the maximum UV index of 3 transforms into these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Piedmont, WA
- Average high temperature in October: 53.1°F
The warmest month (with the highest average high temperature) is August (69.1°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in October: 41.5°F
The month with the highest average low temperature is August (48.6°F).
The coldest months (with the lowest average low temperature) are February and December (31.5°F).
Average pressure in October
Piedmont, WA
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is July (30.07"Hg).
The month with the lowest atmospheric pressure is March (29.99"Hg).
Average wind speed in October
Piedmont, WA
- Average wind speed in October: 4.2mph
The windiest months (with the highest average wind speed) are January and November (5.2mph).
The calmest months (with the lowest average wind speed) are August and September (3.5mph).
Average humidity in October
Piedmont, WA
- Average humidity in October: 83%
The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in October
Piedmont, WA
- Average rainfall in October: 1.5"
The wettest month (with the highest rainfall) is January (3.35").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in October
Piedmont, WA
- Average rainfall days in October: 13.2 days
The month with the highest number of rainy days is March (16.1 days).
The month with the least rainy days is August (5.4 days).
Average snowfall in October
Piedmont, WA
- Average snowfall in October: 0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Piedmont, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Piedmont, WA
- Average daylight in October: 10h and 48min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in October: 5h and 6min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Piedmont, WA
- Average sunshine days in October: 15.2 days
The month with the most sunshine days is August (22.5 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in October
Piedmont, WA
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in October
Piedmont, WA
- Average cloud cover in October: 46
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in October
Piedmont, WA
- Average visibility in October: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
