September weather forecast
Walcott, WY

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Weather in September

The first month of the autumn, September, is still a pleasant month in Walcott, Wyoming, with an average temperature ranging between max 70.2°F (21.2°C) and min 49.6°F (9.8°C).

Temperature

The advent of September brings a subtle shift in temperature, with the average high moving from a moderately hot 79°F (26.1°C) in August to a pleasant 70.2°F (21.2°C). During September, Walcott witnesses a consistent average low-temperature of 49.6°F (9.8°C).

Humidity

In Walcott, the average relative humidity in September is 38%.

Rainfall

In Walcott, in September, it is raining for 7 days, with typically 0.47" (12mm) of accumulated precipitation. In Walcott, during the entire year, the rain falls for 81.7 days and collects up to 9.72" (247mm) of precipitation.

Snowfall

In Walcott, snow does not fall in June through September.

Daylight

In Walcott, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:50 pm MDT.

Sunshine

In September, the average sunshine is 11.1h.

UV index

The average daily maximum UV index in September in Walcott is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 4 in September transforms into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

What is the average September temperature in Walcott?

Walcott in September has an average high-temperature of 70.2°F (21.2°C) and an average low-temperature of 49.6°F (9.8°C).

What is the average humidity in September?

In Walcott, the average relative humidity in September is 38%.

How many days does it rain in September?

In Walcott, during September, the rain falls for 7 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When it does not snow?

In Walcott, snow does not fall in June through September.

Does it snow in September?

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

What is the average length of the day in September?

In September, the average day length is 12h and 28min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:50 pm MDT.

How long on average sun shines in September in Walcott?

The average sunshine duration in September in Walcott is 11.1h.

How high is the UV index in September?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Walcott, WY

Average temperature in September - Walcott, WY
  • Average high temperature in September: 70.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is December (26.4°F).

  • Average low temperature in September: 49.6°F

The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

Average pressure in September
Walcott, WY

Average pressure in September - Walcott, WY
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Walcott, WY

Average wind speed in September - Walcott, WY
  • Average wind speed in September: 10.6mph

The windiest month (with the highest average wind speed) is November (13.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.5mph).

Average humidity in September
Walcott, WY

Average humidity in September - Walcott, WY
  • Average humidity in September: 38%

The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are July and August (35%).

Average rainfall in September
Walcott, WY

Average rainfall in September - Walcott, WY
  • Average rainfall in September: 0.47"

The wettest month (with the highest rainfall) is April (1.42").
The driest month (with the least rainfall) is August (0.35").

Average rainfall days in September
Walcott, WY

Average rainfall days in September - Walcott, WY
  • Average rainfall days in September: 7 days

The month with the highest number of rainy days is May (11.7 days).
The month with the least rainy days is November (3.2 days).

Average snowfall in September
Walcott, WY

Average snowfall in September - Walcott, WY
  • Average snowfall in September: 0"

The month with the highest snowfall is April (5.75").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Walcott, WY

Average snowfall days in September - Walcott, WY
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is February (14.6 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Walcott, WY

Average daylight in September / Average sunshine in September - Walcott, WY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 11h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

Average sunshine days in September
Walcott, WY

Average sunshine days in September - Walcott, WY
  • Average sunshine days in September: 19.5 days

The month with the most sunshine days is June (21.1 days).
The month with the least sunshine days is February (11.2 days).

Average UV index in September
Walcott, WY

Average UV index in September - Walcott, WY
  • 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, March, April, October, November and December (UV index 2).

Average cloud cover in September
Walcott, WY

Average cloud cover in September - Walcott, WY
  • Average cloud cover in September: 13

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 13).

Average visibility in September
Walcott, WY

Average visibility in September - Walcott, WY
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Walcott, Wyoming, USA

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