October weather forecastTerrace Heights, WA
October
Weather in October
October, the same as September, in Terrace Heights, Washington, is a moderate autumn month, with temperature in the range of an average low of 42.6°F (5.9°C) and an average high of 60.1°F (15.6°C).Temperature
A clear reduction in the average high-temperature marks the arrival of October, falling from a warm 74.8°F (23.8°C) in September to a mild 60.1°F (15.6°C). In Terrace Heights, October nights cool down to an average of 42.6°F (5.9°C).Humidity
The average relative humidity in October is 60%.Rainfall
In October, the rain falls for 8 days. Throughout October, 0.43" (11mm) of precipitation is accumulated. Throughout the year, there are 82.2 rainfall days, and 5.43" (138mm) of precipitation is accumulated.Snowfall
In Terrace Heights, snow does not fall in April through August and October.Daylight
In October, the average length of the day is 10h and 52min.On the first day of the month, sunrise is at 7:01 am and sunset at 6:40 pm. On the last day of October, sunrise is at 7:43 am and sunset at 5:47 pm PDT.
Sunshine
The average sunshine in October is 7.1h.UV index
In October, the average daily maximum UV index in Terrace Heights, Washington, is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In October, the maximum UV index of 3 transforms into these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Terrace Heights, WA
- Average high temperature in October: 60.1°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in October: 42.6°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in October
Terrace Heights, WA
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in October
Terrace Heights, WA
- Average wind speed in October: 5.3mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).
Average humidity in October
Terrace Heights, WA
- Average humidity in October: 60%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in October
Terrace Heights, WA
- Average rainfall in October: 0.43"
The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in October
Terrace Heights, WA
- Average rainfall days in October: 8 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).
Average snowfall in October
Terrace Heights, WA
- Average snowfall in October: 0"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in October
Terrace Heights, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in October /
Average sunshine in October
Terrace Heights, WA
- Average daylight in October: 10h and 54min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in October: 7h and 6min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in October
Terrace Heights, WA
- Average sunshine days in October: 20 days
The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in October
Terrace Heights, WA
- Average UV index in October: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Terrace Heights, WA
- Average cloud cover in October: 23
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in October
Terrace Heights, WA
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
