September weather forecast
Tenino, WA

Weather in September

September, the first month of the autumn, in Tenino, is also an agreeable month, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 70.3°F (21.3°C).

Temperature

In Tenino, the average high-temperature slightly decreases, from a warm 78.1°F (25.6°C) in August, to an agreeable 70.3°F (21.3°C). In September, the average low-temperature is 47.3°F (8.5°C).

Humidity

In Tenino, the average relative humidity is 78%.

Rainfall

In September, in Tenino, Washington, the rain falls for 10.5 days. Throughout September, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 151.2 rainfall days, and 17.72" (450mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Tenino.

Daylight

The average length of the day in Tenino is 12.5h.

Sunshine

The average sunshine in Tenino is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What is the average humidity in September in Tenino?

The average relative humidity in September in Tenino is 78%.

How many days does it rain in September in Tenino?

In Tenino, Washington, in September, it is raining for 10.5 days, with typically 1.06" (27mm) of accumulated precipitation.

When it does not snow in Tenino?

In Tenino snow does not fall in May through October.

What is the average length of the day in September in Tenino?

The average length of the day in September in Tenino, Washington, is 12.5h.

How long on average sun shines in September in Tenino?

In September, the average sunshine is 8.6h.

What is the UV index intensity in September in Tenino?

In September, the average daily maximum UV index in Tenino is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in September
Tenino, WA

Average temperature in September - Tenino, WA
  • Average high temperature in September: 70.3°F

The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (42.8°F).

  • Average low temperature in September: 47.3°F

The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).

[Resources]

Average pressure in September
Tenino, WA

Average pressure in September - Tenino, WA
  • Average pressure in September: 30.01"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is September (30.01").

[Resources]

Average wind speed in September
Tenino, WA

Average wind speed in September - Tenino, WA
  • Average wind speed in September: 3.6mph

The windiest months (with the highest average wind speed) are January, February, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).

[Resources]

Average humidity in September
Tenino, WA

Average humidity in September - Tenino, WA
  • Average humidity in September: 78%

Months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (72%).

[Resources]

Average rainfall in September
Tenino, WA

Average rainfall in September - Tenino, WA
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is December (2.8").
The driest month (with the least rainfall) is July (0.24").

[Resources]

Average rainfall days in September
Tenino, WA

Average rainfall days in September - Tenino, WA
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is August (4.7 days).

[Resources]

Average snowfall in September
Tenino, WA

Average snowfall in September - Tenino, WA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.26").
Months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Tenino, WA

Average snowfall days in September - Tenino, WA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.7 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Tenino, WA

Average daylight in September / Average sunshine in September - Tenino, WA
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is August (Average sunshine: 10.4h).
The month with the least sunshine is December (Average sunshine: 3.7h).

[Resources]

Average sunshine days in September
Tenino, WA

Average sunshine days in September - Tenino, WA
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is July (23 days).
The month with the least sunshine days is February (10.8 days).

[Resources]

Average UV index in September
Tenino, WA

Average UV index in September - Tenino, WA
  • Average UV index in September: 4

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average cloud cover in September
Tenino, WA

Average cloud cover in September - Tenino, WA
  • Average cloud cover in September: 43

The month with the most cloud cover is January (Cloud cover 63).
Months with the least cloud cover are July and August (Cloud cover 34).

[Resources]

Average visibility in September
Tenino, WA

Average visibility in September - Tenino, WA
  • Average visibility in September: 4mi

Months with the highest visibility are July and August (5mi).
Months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (4mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location