September weather forecast
Parker, ID

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Weather in September

The first month of the autumn, September, is still a pleasant month in Parker, Idaho, with an average temperature fluctuating between 72.5°F (22.5°C) and 47.1°F (8.4°C).

Temperature

In Parker, the average high-temperature in September drops from a warm 82.9°F (28.3°C) in August to an agreeable 72.5°F (22.5°C). Parker observes a noteworthy temperature drop from the daily highs during September nights, with a mean temperature of 47.1°F (8.4°C).

Humidity

In Parker, the average relative humidity in September is 44%.

Rainfall

In Parker, in September, during 7.1 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, there are 97.5 rainfall days, and 11.85" (301mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows in Parker. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 83.8 snowfall days, and 41.93" (1065mm) of snow is accumulated.

Daylight

In Parker, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:51 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:09 pm MDT.

Sunshine

In Parker, the average sunshine in September is 10h.

UV index

The average daily maximum UV index in September in Parker, Idaho, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 4 during September leads to these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

What is the usual temperature for Parker in September?

The average high-temperature and low-temperature in Parker during September are 72.5°F (22.5°C) and 47.1°F (8.4°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 82.4°F (28°C).

What is the average humidity in September in Parker?

The average relative humidity in September in Parker is 44%.

How many days does it rain in September in Parker?

In Parker, during September, the rain falls for 7.1 days and regularly aggregates up to 0.87" (22mm) of precipitation.

When does it start to snow in Parker?

September is the first month it typically snows in Parker. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

How many hours of daylight does Parker have in September?

In Parker, the average day length in September is 12h and 29min.

When is the sunrise / sunset in September in Parker?

On the first day of September, sunrise is at 6:51 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:09 pm MDT.

How many hours of sunshine does Parker have in September?

The average sunshine duration in September in Parker is 10h.

What is the UV index reading in September in Parker?

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

Average temperature in September
Parker, ID

Average temperature in September - Parker, ID
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is December (26.2°F).

  • Average low temperature in September: 47.1°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

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Average pressure in September
Parker, ID

Average pressure in September - Parker, ID
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Parker, ID

Average wind speed in September - Parker, ID
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is June (6.9mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

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Average humidity in September
Parker, ID

Average humidity in September - Parker, ID
  • Average humidity in September: 44%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in September
Parker, ID

Average rainfall in September - Parker, ID
  • Average rainfall in September: 0.87"

The wettest month (with the highest rainfall) is January (1.5").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in September
Parker, ID

Average rainfall days in September - Parker, ID
  • Average rainfall days in September: 7.1 days

The month with the highest number of rainy days is April (13 days).
The month with the least rainy days is July (5 days).

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Average snowfall in September
Parker, ID

Average snowfall in September - Parker, ID
  • Average snowfall in September: 0.04"

The month with the highest snowfall is January (11.97").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Parker, ID

Average snowfall days in September - Parker, ID
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Parker, ID

Average daylight in September / Average sunshine in September - Parker, ID
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in September
Parker, ID

Average sunshine days in September - Parker, ID
  • Average sunshine days in September: 20.7 days

The month with the most sunshine days is July (24.8 days).
The month with the least sunshine days is February (10.6 days).

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Average UV index in September
Parker, ID

Average UV index in September - Parker, ID
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in September
Parker, ID

Average cloud cover in September - Parker, ID
  • Average cloud cover in September: 16

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in September
Parker, ID

Average visibility in September - Parker, ID
  • Average visibility in September: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (3mi).

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Parker, Idaho, USA

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