Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The start of September comes with a small reduction in the average high-temperature, subtly receding from a warm 76.5°F (24.7°C) in August to an agreeable 69.3°F (20.7°C). With a significant temperature contrast, nighttime temperatures hover around an average low of 45.5°F (7.5°C) in September.Humidity
The average relative humidity in September is 77%.Rainfall
In September, in Lacamas, the rain falls for 10.5 days. Throughout September, 1.22" (31mm) of precipitation is accumulated. In Lacamas, during the entire year, the rain falls for 149 days and collects up to 19.37" (492mm) of precipitation.Snowfall
In Lacamas, Washington, snow does not fall in May through October.Daylight
In Lacamas, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:48 pm. On the last day of September, in Lacamas, sunrise is at 7:09 am and sunset at 6:51 pm PDT.
Sunshine
In September, the average sunshine in Lacamas is 8.5h.UV index
The average daily maximum UV index in September in Lacamas, Washington, is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What is the average September temperature in Lacamas?
What is the average humidity in September in Lacamas?
How many days does it rain in September in Lacamas?
When it does not snow in Lacamas?
How many hours of daylight does Lacamas have in September?
What time are sunrise and sunset in September in Lacamas?
How many hours of sunshine does Lacamas have in September?
What is the UV index intensity in September in Lacamas?
Average temperature in September
Lacamas, WA
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in September: 45.5°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (31.8°F).
Average pressure in September
Lacamas, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in September
Lacamas, WA
- Average wind speed in September: 3.7mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in September
Lacamas, WA
- Average humidity in September: 77%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in September
Lacamas, WA
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is January (2.64").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in September
Lacamas, WA
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.9 days).
Average snowfall in September
Lacamas, WA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Lacamas, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Lacamas, WA
- Average daylight in September: 12h and 3min
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 September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 42min).
Average sunshine days in September
Lacamas, WA
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (12.1 days).
Average UV index in September
Lacamas, WA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Lacamas, WA
- Average cloud cover in September: 42
The month with the most cloud cover is March (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Lacamas, WA
- Average visibility in September: 4mi
The months with the highest visibility are July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (4mi).
Lacamas, Washington, USA
Weather forecast for your location
2. Allow the app to use your location
