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
September's commencement is accompanied by an average high-temperature of a moderately hot 83.5°F (28.6°C), diverging marginally from August's 87.8°F (31°C). September nights experience a consistent temperature drop to an enjoyable 63.9°F (17.7°C).Heat index
In September, the heat index is appraised at 84.2°F (29°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In September, the average relative humidity is 47%.Rainfall
In Tombstone, in September, it is raining for 11.8 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, there are 87 rainfall days, and 12.09" (307mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In Tombstone, Arizona, the average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 5:56 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 6:06 pm MST.
Sunshine
The average sunshine in September is 10h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Tombstone have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Tombstone have in September?
How high is the UV index in September?
Average temperature in September
Tombstone, AZ
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is June (91.9°F).
The month with the lowest average high temperature is December (57°F).
- Average low temperature in September: 63.9°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in September
Tombstone, AZ
- Average pressure in September: 29.9"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Tombstone, AZ
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Tombstone, AZ
- Average humidity in September: 47%
The month with the highest relative humidity is December (49%).
The month with the lowest relative humidity is May (22%).
Average rainfall in September
Tombstone, AZ
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is July (3.23").
The driest month (with the least rainfall) is May (0.08").
Average rainfall days in September
Tombstone, AZ
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is May (2.2 days).
Average snowfall in September
Tombstone, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Tombstone, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Tombstone, AZ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Tombstone, AZ
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is May (28.3 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in September
Tombstone, AZ
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Tombstone, AZ
- Average cloud cover in September: 15
The month with the most cloud cover is July (Cloud cover 21).
The month with the least cloud cover is May (Cloud cover 7).
Average visibility in September
Tombstone, 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).
Tombstone, Arizona, USA
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