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
Georgetown's progression into September involves a gentle drop in the average high-temperature, from a hot 86.9°F (30.5°C) in August to a moderately hot 81.1°F (27.3°C). Georgetown registers a pronounced decline from daytime peak temperatures, averaging a cool 53.1°F (11.7°C) lows in September.Heat index
The heat index value during September is computed to be 80.6°F (27°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In September, the average relative humidity in Georgetown is 41%.Rainfall
In Georgetown, during September, the rain falls for 3.5 days and regularly aggregates up to 0.35" (9mm) of precipitation. In Georgetown, during the entire year, the rain falls for 85.5 days and collects up to 35.94" (913mm) of precipitation.Snowfall
In Georgetown, snow does not fall in June through October.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:46 pm PDT.
Sunshine
In Georgetown, the average sunshine in September is 11.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September in Georgetown?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Georgetown have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Georgetown have in September?
What is the UV index reading in September?
Average temperature in September
Georgetown, CA
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (49.1°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in September
Georgetown, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Georgetown, CA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Georgetown, CA
- Average humidity in September: 41%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is July (38%).
Average rainfall in September
Georgetown, CA
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is March (7.01").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in September
Georgetown, CA
- Average rainfall days in September: 3.5 days
The month with the highest number of rainy days is March (13.9 days).
The month with the least rainy days is July (1.4 days).
Average snowfall in September
Georgetown, CA
- Average snowfall in September: 0"
The month with the highest snowfall is March (17.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Georgetown, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (5.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Georgetown, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in September
Georgetown, CA
- Average sunshine days in September: 26.1 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.5 days).
Average UV index in September
Georgetown, CA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in September
Georgetown, CA
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in September
Georgetown, CA
- 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).
Georgetown, California, USA
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