September weather forecast
Thatcher, AZ

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Weather in September

September, the first month of the autumn in Thatcher, is still a hot month, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 66.9°F (19.4°C).

Temperature

Thatcher's progression into September involves a gentle drop in the average high-temperature, from 92.1°F (33.4°C) in August to a still hot 86.7°F (30.4°C). An average low-temperature of 66.9°F (19.4°C) marks the nights throughout September.

Heat index

During September, the heat index is computed to be a hot 86°F (30°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Thatcher, the average relative humidity in September is 41%.

Rainfall

In September, the rain falls for 9 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 78.6 rainfall days, and 8.39" (213mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September, sunrise is at 5:54 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 6:04 pm MST.

Sunshine

The average sunshine in September is 10.4h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September in Thatcher?

In Thatcher, in September, the average high-temperature is 86.7°F (30.4°C), and the average low-temperature is 66.9°F (19.4°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in September is computed to be 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 41%.

How many days does it rain in September?

In September, the rain falls for 9 days. Throughout September, 0.79" (20mm) of precipitation is accumulated.

When it does not snow?

In Thatcher, snow does not fall in March through November.

How many hours of daylight does Thatcher have in September?

In September, the average day length is 12h and 22min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 5:54 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 6:04 pm MST.

How long on average sun shines in September?

In Thatcher, the average sunshine duration in September is 10.4h.

How high is the UV index in September?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
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
Thatcher, AZ

Average temperature in September - Thatcher, AZ
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is June (94.3°F).
The month with the lowest average high temperature is December (55.9°F).

  • Average low temperature in September: 66.9°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

Average pressure in September
Thatcher, AZ

Average pressure in September - Thatcher, AZ
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in September
Thatcher, AZ

Average wind speed in September - Thatcher, AZ
  • Average wind speed in September: 5.6mph

The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest months (with the lowest average wind speed) are January and December (5.4mph).

Average humidity in September
Thatcher, AZ

Average humidity in September - Thatcher, AZ
  • Average humidity in September: 41%

The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is June (20%).

Average rainfall in September
Thatcher, AZ

Average rainfall in September - Thatcher, AZ
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is May (0.12").

Average rainfall days in September
Thatcher, AZ

Average rainfall days in September - Thatcher, AZ
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is May (2.7 days).

Average snowfall in September
Thatcher, AZ

Average snowfall in September - Thatcher, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Thatcher, AZ

Average snowfall days in September - Thatcher, AZ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Thatcher, AZ

Average daylight in September / Average sunshine in September - Thatcher, AZ
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 10h and 2min

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in September
Thatcher, AZ

Average sunshine days in September - Thatcher, AZ
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is May (27.3 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Thatcher, AZ

Average UV index in September - Thatcher, AZ
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Thatcher, AZ

Average cloud cover in September - Thatcher, AZ
  • Average cloud cover in September: 13

The month with the most cloud cover is December (Cloud cover 20).
The months with the least cloud cover are May and June (Cloud cover 8).

Average visibility in September
Thatcher, AZ

Average visibility in September - Thatcher, 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).

Thatcher, Arizona, USA

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