September weather forecastHolbrook, AZ
September
Weather in September
September, the first month of the autumn in Holbrook, is still a warm month, with an average temperature fluctuating between 82.4°F (28°C) and 62.6°F (17°C).Temperature
September is characterized by a slight reduction in average high-temperature, easing from a tropical 88.3°F (31.3°C) in August to a moderately hot 82.4°F (28°C). The nighttime temperature dips to an enjoyable 62.6°F (17°C) on average during September.Humidity
In September, the average relative humidity is 35%.Rainfall
In September, the rain falls for 7.8 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. In Holbrook, during the entire year, the rain falls for 74.3 days and collects up to 7.2" (183mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 5:54 am and sunset at 6:46 pm. On the last day of September, sunrise is at 6:15 am and sunset at 6:05 pm MST.
Sunshine
In Holbrook, the average sunshine in September is 10.4h.UV index
In Holbrook, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Holbrook, AZ
- Average high temperature in September: 82.4°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (46.8°F).
- Average low temperature in September: 62.6°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 (29.8°F).
Average pressure in September
Holbrook, AZ
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).
Average wind speed in September
Holbrook, AZ
- Average wind speed in September: 7.7mph
The windiest months (with the highest average wind speed) are April and May (10.6mph).
The calmest month (with the lowest average wind speed) is January (6.1mph).
Average humidity in September
Holbrook, AZ
- Average humidity in September: 35%
The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is June (18%).
Average rainfall in September
Holbrook, AZ
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is June (0.16").
Average rainfall days in September
Holbrook, AZ
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is July (13.3 days).
The months with the least rainy days are June and November (3.4 days).
Average snowfall in September
Holbrook, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Holbrook, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (3.1 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
Holbrook, AZ
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 10h and 24min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Holbrook, AZ
- Average sunshine days in September: 19.4 days
The months with the most sunshine days are May, June and November (25.3 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in September
Holbrook, AZ
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Holbrook, AZ
- Average cloud cover in September: 11
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 9).
Average visibility in September
Holbrook, 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).
