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
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a tropical 87.4°F (30.8°C) in August to a moderately hot 81.5°F (27.5°C). A pronounced dip becomes evident during the nights in September as Humboldt logs a consistent average temperature of 59°F (15°C).Heat index
For September, the heat index is computed to be 80.6°F (27°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.One should consider that heat index numbers are for shaded settings and light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In September, the average relative humidity is 40%.Rainfall
In September, the rain falls for 9.2 days. Throughout September, 1.14" (29mm) of precipitation is accumulated. Throughout the year, there are 74.4 rainfall days, and 12.68" (322mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September, November and December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 16.4 snowfall days, and 19.37" (492mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:02 am and sunset at 6:54 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 6:13 pm MST.
Sunshine
In September, the average sunshine in Humboldt is 9.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing?
What is the average length of the day in September?
What time are sunrise and sunset in September in Humboldt?
How many hours of sunshine does Humboldt have in September?
What is the UV index reading in September?
Average temperature in September
Humboldt, AZ
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (50°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).
Average pressure in September
Humboldt, AZ
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Humboldt, AZ
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Humboldt, AZ
- Average humidity in September: 40%
The month with the highest relative humidity is December (58%).
The month with the lowest relative humidity is June (23%).
Average rainfall in September
Humboldt, AZ
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is July (2.05").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
Humboldt, AZ
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is June (1.8 days).
Average snowfall in September
Humboldt, AZ
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and October (0").
Average snowfall days in September
Humboldt, AZ
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (4.8 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Humboldt, AZ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Humboldt, AZ
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is June (27.4 days).
The month with the least sunshine days is August (13.2 days).
Average UV index in September
Humboldt, AZ
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Humboldt, AZ
- Average cloud cover in September: 10
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in September
Humboldt, AZ
- 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).
Humboldt, Arizona, USA
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