September weather forecast
Hatton, WA

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Weather in September

September, the first month of the autumn in Hatton, is still a warm month, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 77.4°F (25.2°C).

Temperature

Hatton's progression into September involves a drop in the average high-temperature, receding from a hot 88.3°F (31.3°C) in August to a moderately hot 77.4°F (25.2°C). Throughout the month of September, Hatton witnesses an average temperature of 56.3°F (13.5°C).

Humidity

In Hatton, Washington, the average relative humidity in September is 43%.

Rainfall

In September, in Hatton, Washington, the rain falls for 4.5 days. Throughout September, 0.24" (6mm) of precipitation is accumulated. Throughout the year, in Hatton, there are 97 rainfall days, and 7.36" (187mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, September, November and December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.2" (5mm) of snow. In Hatton, during the entire year, snow falls for 14.2 days and aggregates up to 5.43" (138mm) of snow.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of the month, sunrise is at 6:16 am and sunset at 7:33 pm. On the last day of September, in Hatton, sunrise is at 6:53 am and sunset at 6:36 pm PDT.

Sunshine

The average sunshine in September in Hatton is 10.6h.

UV index

In September, the average daily maximum UV index in Hatton is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily UV index of 4 turns into the following recommendations:
Act with care - The need to guard against sun damage is communicated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the temperature in September in Hatton?

The high-temperature, in September, in Hatton, is 77.4°F (25.2°C), while the low-temperature averages to 56.3°F (13.5°C).

What is the average humidity in September in Hatton?

The average relative humidity in September in Hatton, Washington, is 43%.

How much does it rain in Hatton in September?

In Hatton, Washington, during September, the rain falls for 4.5 days and regularly aggregates up to 0.24" (6mm) of precipitation.

When does it start snowing in Hatton?

September is the first month it typically snows in Hatton. Throughout September, in the average 0.1 snowfall days, it receives 0.2" (5mm) of snow.

How many hours of daylight does Hatton have in September?

The average day length in September in Hatton, Washington, is 12h and 32min.

What time are sunrise and sunset in September in Hatton?

In September, on the first day of the month, sunrise is at 6:16 am and sunset at 7:33 pm. On the last day of the month, in Hatton, Washington, sunrise is at 6:53 am and sunset at 6:36 pm PDT.

How long on average sun shines in September in Hatton?

The average sunshine duration in September is 10.6h.

What is the UV index reading in September in Hatton?

In Hatton, Washington, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Hatton, WA

Average temperature in September - Hatton, WA
  • Average high temperature in September: 77.4°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).

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Average pressure in September
Hatton, WA

Average pressure in September - Hatton, WA
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).

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Average wind speed in September
Hatton, WA

Average wind speed in September - Hatton, WA
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).

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Average humidity in September
Hatton, WA

Average humidity in September - Hatton, WA
  • Average humidity in September: 43%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (36%).

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Average rainfall in September
Hatton, WA

Average rainfall in September - Hatton, WA
  • Average rainfall in September: 0.24"

The wettest month (with the highest rainfall) is January (0.94").
The driest months (with the least rainfall) are July and August (0.2").

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Average rainfall days in September
Hatton, WA

Average rainfall days in September - Hatton, WA
  • Average rainfall days in September: 4.5 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (3.3 days).

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Average snowfall in September
Hatton, WA

Average snowfall in September - Hatton, WA
  • Average snowfall in September: 0.2"

The month with the highest snowfall is February (1.97").
The months with the least snowfall are April, May, June, July, August and October (0").

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Average snowfall days in September
Hatton, WA

Average snowfall days in September - Hatton, WA
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is December (4.1 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

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

Average daylight in September / Average sunshine in September - Hatton, 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: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

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Average sunshine days in September
Hatton, WA

Average sunshine days in September - Hatton, WA
  • Average sunshine days in September: 24.1 days

The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is February (14.8 days).

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Average UV index in September
Hatton, WA

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

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).

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Average cloud cover in September
Hatton, WA

Average cloud cover in September - Hatton, WA
  • Average cloud cover in September: 17

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 10).

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Average visibility in September
Hatton, WA

Average visibility in September - Hatton, WA
  • Average visibility in September: 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).

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Hatton, Washington, USA

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