Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As Hammett enters September, the average high-temperature decreases from the a tropical 89.8°F (32.1°C) of August to a warm 78.3°F (25.7°C). Hammett registers a pronounced decline from daytime peak temperatures, averaging a mild 56.5°F (13.6°C) lows in September.Humidity
The average relative humidity in September is 32%.Rainfall
In Hammett, during September, the rain falls for 5 days and regularly aggregates up to 0.28" (7mm) of precipitation. Throughout the year, there are 80.6 rainfall days, and 7.36" (187mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 7:07 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:24 pm MDT.
Sunshine
In Hammett, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Hammett, ID
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is December (35.4°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is December (24.4°F).
Average pressure in September
Hammett, ID
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Hammett, ID
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in September
Hammett, ID
- Average humidity in September: 32%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is July (26%).
Average rainfall in September
Hammett, ID
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is December (1.22").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in September
Hammett, ID
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (3.1 days).
Average snowfall in September
Hammett, ID
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Hammett, ID
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (5.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hammett, ID
- 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 6min).
Average sunshine days in September
Hammett, ID
- Average sunshine days in September: 24 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is March (16.5 days).
Average UV index in September
Hammett, ID
- Average UV index in September: 5
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
Hammett, ID
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in September
Hammett, ID
- 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).
Hammett, Idaho, USA
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