September weather forecast
Caspar, CA

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Weather in September

September, the first month of the autumn in Caspar, is also an enjoyable month, with an average temperature ranging between min 54.9°F (12.7°C) and max 67.5°F (19.7°C).

Temperature

September is Caspar's warmest month, registering average high temperatures of 67.5°F (19.7°C) and lows of 54.9°F (12.7°C).

Humidity

The average relative humidity in September is 76%.

Rainfall

In Caspar, in September, it is raining for 2.1 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, there are 68.4 rainfall days, and 9.53" (242mm) of precipitation is accumulated.

Snowfall

In Caspar, snow does not fall in January, March through December.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September in Caspar, sunrise is at 6:44 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:58 pm PDT.

Sunshine

In Caspar, the average sunshine in September is 10.7h.

UV index

In September, the average daily maximum UV index in Caspar is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What part of the year is the hottest in Caspar?

Caspar's September weather reaches an average high of 67.5°F (19.7°C) and an average low of 54.9°F (12.7°C), making it the warmest month.

What are the temperatures in Caspar in September?

The high-temperature in Caspar during September is 67.5°F (19.7°C) and the low-temperature is 54.9°F (12.7°C).

What is the average humidity in September in Caspar?

In Caspar, California, the average relative humidity in September is 76%.

How many days does it rain in September in Caspar?

In Caspar, during September, the rain falls for 2.1 days and regularly aggregates up to 0.16" (4mm) of precipitation.

When it does not snow in Caspar?

January, March through December are months without snowfall in Caspar, California.

How many hours of daylight does Caspar have in September?

In Caspar, California, the average day length in September is 12h and 26min.

What time are sunrise and sunset in September in Caspar?

On the first day of September in Caspar, sunrise is at 6:44 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:58 pm PDT.

How long on average sun shines in September in Caspar?

In September, the average sunshine duration in Caspar, California, is 10.7h.

What is the UV index reading in September in Caspar?

The average daily maximum UV index in September in Caspar, California, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Caspar, CA

Average temperature in September - Caspar, CA
  • Average high temperature in September: 67.5°F

The warmest month (with the highest average high temperature) is September (67.5°F).
The months with the lowest average high temperature are February and December (54.3°F).

  • Average low temperature in September: 54.9°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).

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Average pressure in September
Caspar, CA

Average pressure in September - Caspar, CA
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed in September
Caspar, CA

Average wind speed in September - Caspar, CA
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is June (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in September
Caspar, CA

Average humidity in September - Caspar, CA
  • Average humidity in September: 76%

The months with the highest relative humidity are March, May and August (80%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in September
Caspar, CA

Average rainfall in September - Caspar, CA
  • Average rainfall in September: 0.16"

The wettest month (with the highest rainfall) is December (1.77").
The driest months (with the least rainfall) are June, July and August (0.08").

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Average rainfall days in September
Caspar, CA

Average rainfall days in September - Caspar, CA
  • Average rainfall days in September: 2.1 days

The month with the highest number of rainy days is March (11.4 days).
The months with the least rainy days are June and August (1.8 days).

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Average snowfall in September
Caspar, CA

Average snowfall in September - Caspar, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Caspar, CA

Average snowfall days in September - Caspar, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in September /
Average sunshine in September
Caspar, CA

Average daylight in September / Average sunshine in September - Caspar, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Caspar, CA

Average sunshine days in September - Caspar, CA
  • Average sunshine days in September: 27.7 days

The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is March (18.4 days).

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Average UV index in September
Caspar, CA

Average UV index in September - Caspar, CA
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Caspar, CA

Average cloud cover in September - Caspar, CA
  • Average cloud cover in September: 12

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 10).

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Average visibility in September
Caspar, CA

Average visibility in September - Caspar, CA
  • 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).

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Caspar, California, USA

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