September weather forecast
Rafter J Ranch, WY

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Weather in September

September, the first month of the autumn in Rafter J Ranch, is still a refreshing month, with an average temperature ranging between max 62.8°F (17.1°C) and min 37.2°F (2.9°C).

Temperature

The beginning of September involves a decrease in the average high-temperature, transitioning from a pleasant 72.1°F (22.3°C) in August to an enjoyable 62.8°F (17.1°C). Rafter J Ranch, during the nights of September, registers a substantial plunge from the daytime high, averaging at a cold 37.2°F (2.9°C).

Humidity

In September, the average relative humidity is 57%.

Rainfall

In Rafter J Ranch, Wyoming, during September, the rain falls for 10.8 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Rafter J Ranch, during the entire year, the rain falls for 103 days and collects up to 29.84" (758mm) of precipitation.

Snowfall

January through December are months with snowfall in Rafter J Ranch. In Rafter J Ranch, Wyoming, in September, during 3.3 snowfall days, 5.12" (130mm) of snow is typically accumulated. In Rafter J Ranch, during the entire year, snow falls for 173.6 days and aggregates up to 181.26" (4604mm) of snow.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:48 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:05 pm MDT.

Sunshine

In Rafter J Ranch, the average sunshine in September is 10h.

UV index

The average daily maximum UV index in September in Rafter J Ranch is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 2 during September leads to these instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

What is the usual temperature for Rafter J Ranch in September?

The average high-temperature, in September, in Rafter J Ranch, is 62.8°F (17.1°C), while the average low-temperature is 37.2°F (2.9°C).

What is the average humidity in September in Rafter J Ranch?

In September, the average relative humidity in Rafter J Ranch is 57%.

How much does it rain in Rafter J Ranch in September?

In Rafter J Ranch, Wyoming, during September, the rain falls for 10.8 days and regularly aggregates up to 1.77" (45mm) of precipitation.

How many days does it snow in September in Rafter J Ranch?

In Rafter J Ranch, Wyoming, during September, snow falls for 3.3 days and regularly aggregates up to 5.12" (130mm) of snow.

What is the average length of the day in September in Rafter J Ranch?

In September, the average day length in Rafter J Ranch is 12h and 29min.

When are sunrise and sunset in September in Rafter J Ranch?

In September, on the first day of the month, sunrise is at 6:48 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:05 pm MDT.

How many hours of sunshine does Rafter J Ranch have in September?

The average sunshine duration in September in Rafter J Ranch, Wyoming, is 10h.

What is the UV index intensity in September in Rafter J Ranch?

The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe 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
Rafter J Ranch, WY

Average temperature in September - Rafter J Ranch, WY
  • Average high temperature in September: 62.8°F

The warmest month (with the highest average high temperature) is July (73.4°F).
The month with the lowest average high temperature is December (21.9°F).

  • Average low temperature in September: 37.2°F

The month with the highest average low temperature is July (43.5°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).

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Average pressure in September
Rafter J Ranch, WY

Average pressure in September - Rafter J Ranch, WY
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Rafter J Ranch, WY

Average wind speed in September - Rafter J Ranch, WY
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is December (4.3mph).

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Average humidity in September
Rafter J Ranch, WY

Average humidity in September - Rafter J Ranch, WY
  • Average humidity in September: 57%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in September
Rafter J Ranch, WY

Average rainfall in September - Rafter J Ranch, WY
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is February (3.54").
The driest month (with the least rainfall) is August (1.34").

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Average rainfall days in September
Rafter J Ranch, WY

Average rainfall days in September - Rafter J Ranch, WY
  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (2.9 days).

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Average snowfall in September
Rafter J Ranch, WY

Average snowfall in September - Rafter J Ranch, WY
  • Average snowfall in September: 5.12"

The month with the highest snowfall is February (29.33").
The month with the least snowfall is August (0.12").

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Average snowfall days in September
Rafter J Ranch, WY

Average snowfall days in September - Rafter J Ranch, WY
  • Average snowfall days in September: 3.3 days

The month with the highest number of snowfall days is March (24.8 days).
The month with the least snowfall days is July (0.4 days).

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Average daylight in September /
Average sunshine in September
Rafter J Ranch, WY

Average daylight in September / Average sunshine in September - Rafter J Ranch, WY
  • 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: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).

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Average sunshine days in September
Rafter J Ranch, WY

Average sunshine days in September - Rafter J Ranch, WY
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is July (15.6 days).
The month with the least sunshine days is April (3.8 days).

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Average UV index in September
Rafter J Ranch, WY

Average UV index in September - Rafter J Ranch, WY
  • Average UV index in September: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

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Average cloud cover in September
Rafter J Ranch, WY

Average cloud cover in September - Rafter J Ranch, WY
  • Average cloud cover in September: 21

The month with the most cloud cover is February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 16).

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Average visibility in September
Rafter J Ranch, WY

Average visibility in September - Rafter J Ranch, WY
  • Average visibility in September: 6mi

The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (3mi).

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Rafter J Ranch, Wyoming, USA

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