September weather forecast
Jordan Valley, OR

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Jordan Valley, Oregon, with an average temperature varying between 55.4°F (13°C) and 75.2°F (24°C).

Temperature

In September, the meteorological conditions alter, with the average high-temperature shifting from a moderately hot 85.6°F (29.8°C) in August to a still warm 75.2°F (24°C). Jordan Valley's temperature in September lowers to a consistent average of 55.4°F (13°C) during the nights.

Humidity

In September, the average relative humidity is 32%.

Rainfall

In September, the rain falls for 4.7 days. Throughout September, 0.35" (9mm) of precipitation is accumulated. Throughout the year, in Jordan Valley, there are 101.4 rainfall days, and 10.08" (256mm) of precipitation is accumulated.

Snowfall

In Jordan Valley, snow does not fall in June through September.

Daylight

In Jordan Valley, the average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 7:13 am and sunset at 8:22 pm. On the last day of September, sunrise is at 7:45 am and sunset at 7:30 pm MDT.

Sunshine

In Jordan Valley, the average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 4 in September leads to these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What is the temperature in September?

The high-temperature, in September, in Jordan Valley, is 75.2°F (24°C), while the low-temperature averages to 55.4°F (13°C).

What is the average humidity in September?

In Jordan Valley, the average relative humidity in September is 32%.

How much does it rain in September?

In September, the rain falls for 4.7 days. Throughout September, 0.35" (9mm) of precipitation is accumulated.

When it does not snow?

In Jordan Valley, snow does not fall in June through September.

Does it snow in September?

In Jordan Valley, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Jordan Valley have in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:13 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 7:30 pm MDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.6h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
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
Jordan Valley, OR

Average temperature in September - Jordan Valley, OR
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is December (34.3°F).

  • Average low temperature in September: 55.4°F

The month with the highest average low temperature is August (64.6°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).

Average pressure in September
Jordan Valley, OR

Average pressure in September - Jordan Valley, OR
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.91"Hg).

Average wind speed in September
Jordan Valley, OR

Average wind speed in September - Jordan Valley, OR
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest months (with the lowest average wind speed) are January and August (6.3mph).

Average humidity in September
Jordan Valley, OR

Average humidity in September - Jordan Valley, OR
  • Average humidity in September: 32%

The months with the highest relative humidity are January and December (77%).
The months with the lowest relative humidity are July and August (25%).

Average rainfall in September
Jordan Valley, OR

Average rainfall in September - Jordan Valley, OR
  • Average rainfall in September: 0.35"

The wettest month (with the highest rainfall) is March (1.46").
The driest months (with the least rainfall) are July and August (0.16").

Average rainfall days in September
Jordan Valley, OR

Average rainfall days in September - Jordan Valley, OR
  • Average rainfall days in September: 4.7 days

The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is July (2.6 days).

Average snowfall in September
Jordan Valley, OR

Average snowfall in September - Jordan Valley, OR
  • Average snowfall in September: 0"

The month with the highest snowfall is December (6.34").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Jordan Valley, OR

Average snowfall days in September - Jordan Valley, OR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Jordan Valley, OR

Average daylight in September / Average sunshine in September - Jordan Valley, OR
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in September
Jordan Valley, OR

Average sunshine days in September - Jordan Valley, OR
  • Average sunshine days in September: 23.5 days

The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is March (12.3 days).

Average UV index in September
Jordan Valley, OR

Average UV index in September - Jordan Valley, OR
  • 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).

Average cloud cover in September
Jordan Valley, OR

Average cloud cover in September - Jordan Valley, OR
  • Average cloud cover in September: 13

The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 8).

Average visibility in September
Jordan Valley, OR

Average visibility in September - Jordan Valley, OR
  • Average visibility in September: 6mi

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

Jordan Valley, Oregon, USA

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