September weather forecast
Hamer, ID

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Weather in September

The first month of the autumn, September, is also an agreeable month in Hamer, Idaho, with an average temperature fluctuating between 47.3°F (8.5°C) and 72.7°F (22.6°C).

Temperature

Hamer's September weather shows a moderate shift in high-temperatures, falling from August's warm 82.9°F (28.3°C) to an agreeable 72.7°F (22.6°C). September witnesses a substantial contrast between the daytime highs and the average low of 47.3°F (8.5°C).

Humidity

The average relative humidity in September is 43%.

Rainfall

In Hamer, in September, during 9 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. In Hamer, during the entire year, the rain falls for 120.3 days and collects up to 11.02" (280mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Hamer, during the entire year, snow falls for 84.8 days and aggregates up to 31.85" (809mm) of snow.

Daylight

In Hamer, the average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:53 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:10 pm MDT.

Sunshine

The average sunshine in September is 10h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

September temperatures vary between a high-temperature of 72.7°F (22.6°C) and a low-temperature of 47.3°F (8.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is calculated to be 84.2°F (29°C).

What is the average humidity in September?

In Hamer, the average relative humidity in September is 43%.

How many days does it rain in September in Hamer?

In September, the rain falls for 9 days. Throughout September, 0.91" (23mm) of precipitation is accumulated.

When does it start to snow?

September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September?

The average day length in September is 12h and 29min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:53 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:10 pm MDT.

How long on average sun shines in September?

The average sunshine duration in September is 10h.

What is the UV index intensity in September?

In Hamer, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Hamer, ID

Average temperature in September - Hamer, ID
  • Average high temperature in September: 72.7°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is December (26.6°F).

  • Average low temperature in September: 47.3°F

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

Average pressure in September
Hamer, ID

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

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Hamer, ID

Average wind speed in September - Hamer, ID
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).

Average humidity in September
Hamer, ID

Average humidity in September - Hamer, ID
  • Average humidity in September: 43%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (38%).

Average rainfall in September
Hamer, ID

Average rainfall in September - Hamer, ID
  • Average rainfall in September: 0.91"

The wettest months (with the highest rainfall) are April and May (1.26").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in September
Hamer, ID

Average rainfall days in September - Hamer, ID
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is July (6.3 days).

Average snowfall in September
Hamer, ID

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

The month with the highest snowfall is January (8.9").
The months with the least snowfall are June, July and August (0").

Average snowfall days in September
Hamer, ID

Average snowfall days in September - Hamer, ID
  • Average snowfall days in September: 0.1 days

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

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

Average daylight in September / Average sunshine in September - Hamer, 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 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in September
Hamer, ID

Average sunshine days in September - Hamer, ID
  • Average sunshine days in September: 18 days

The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is February (8.8 days).

Average UV index in September
Hamer, ID

Average UV index in September - Hamer, 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 and December (UV index 1).

Average cloud cover in September
Hamer, ID

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

The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 11).

Average visibility in September
Hamer, ID

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

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

Hamer, Idaho, USA

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