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 commencement of September indicates a shift in the average high-temperature, receding from August's hot 88.2°F (31.2°C) to a moderately hot 77.9°F (25.5°C). An average nighttime temperature of 60.6°F (15.9°C) is witnessed throughout September.Humidity
In Callao, the average relative humidity in September is 31%.Rainfall
In September, the rain falls for 9 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 108.8 rainfall days, and 9.88" (251mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Callao, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 7:03 am and sunset at 8:05 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:18 pm MDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoiding the Sun during its peak radiation time around midday is a healthy practice. 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
What are the temperatures in Callao in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in Callao?
Does it snow in September?
How many hours of daylight does Callao have in September?
What time are sunrise and sunset in September in Callao?
How long on average sun shines in September in Callao?
How high is the UV index in September?
Average temperature in September
Callao, UT
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in September: 60.6°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 (21.6°F).
Average pressure in September
Callao, UT
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Callao, UT
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in September
Callao, UT
- Average humidity in September: 31%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (26%).
Average rainfall in September
Callao, UT
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is April (1.18").
The driest month (with the least rainfall) is June (0.51").
Average rainfall days in September
Callao, UT
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is April (11.9 days).
The month with the least rainy days is November (5.8 days).
Average snowfall in September
Callao, UT
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.45").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Callao, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (10.2 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
Callao, UT
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Callao, UT
- Average sunshine days in September: 17 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in September
Callao, UT
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Callao, UT
- Average cloud cover in September: 12
The months with the most cloud cover are January, February and December (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Callao, UT
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Callao, Utah, USA
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