September weather forecastHappy Jack, AZ
September
Weather in September
September, the first month of the autumn in Happy Jack, is also a moderately hot month, with an average temperature fluctuating between 77.5°F (25.3°C) and 55.2°F (12.9°C).Temperature
September brings a minor shift in the average high-temperature, adjusting from 83.3°F (28.5°C) in August to a still warm 77.5°F (25.3°C). Happy Jack, during the nights of September, registers a substantial plunge from the daytime high, averaging at a cool 55.2°F (12.9°C).Humidity
The average relative humidity in September is 43%.Rainfall
In Happy Jack, during September, the rain falls for 8.9 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, in Happy Jack, there are 86 rainfall days, and 11.65" (296mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Happy Jack, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 5:59 am and sunset at 6:51 pm. On the last day of September, sunrise is at 6:20 am and sunset at 6:10 pm MST.
Sunshine
In September, the average sunshine in Happy Jack is 9.7h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 5 in September transforms into the following instructions:
Heed the precautions - Suggestions to avoid sunburn are made. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Happy Jack, AZ
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in September
Happy Jack, AZ
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Happy Jack, AZ
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Happy Jack, AZ
- Average humidity in September: 43%
The month with the highest relative humidity is January (62%).
The month with the lowest relative humidity is June (24%).
Average rainfall in September
Happy Jack, AZ
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is July (2.28").
The driest month (with the least rainfall) is June (0.16").
Average rainfall days in September
Happy Jack, AZ
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is June (2.8 days).
Average snowfall in September
Happy Jack, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Happy Jack, AZ
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (3.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Happy Jack, 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: 9h and 42min
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 42min).
Average sunshine days in September
Happy Jack, AZ
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is June (26 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in September
Happy Jack, AZ
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Happy Jack, AZ
- Average cloud cover in September: 11
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in September
Happy Jack, 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).
