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
Shifting into September, Katalla records an average high-temperature of a cool 52.5°F (11.4°C), presenting minor fluctuations compared to the previous month. Katalla, in the month of September, notes an average low temperature of 45.3°F (7.4°C), indicating a small decrease from the daytime highs.Humidity
In September, the average relative humidity is 82%.Rainfall
In September, in Katalla, the rain falls for 20.9 days. Throughout September, 8.98" (228mm) of precipitation is accumulated. In Katalla, during the entire year, the rain falls for 191.3 days and collects up to 72.4" (1839mm) of precipitation.Snowfall
In Katalla, Alaska, snow does not fall in June through September.Daylight
In September, the average length of the day in Katalla, Alaska, is 12h and 50min.On the first day of the month, sunrise is at 6:35 am and sunset at 8:40 pm. On the last day of September, in Katalla, sunrise is at 7:43 am and sunset at 7:11 pm AKDT.
Sunshine
The average sunshine in September is 5.1h.UV index
The average daily maximum UV index in September in Katalla is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 3 in September translates into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What is the temperature in September in Katalla?
What is the average humidity in September in Katalla?
How many days does it rain in September in Katalla?
When it does not snow in Katalla?
Does it snow in Katalla in September?
What is the average length of the day in September in Katalla?
What time are sunrise and sunset in September in Katalla?
How many hours of sunshine does Katalla have in September?
What is the UV index intensity in September in Katalla?
Average temperature in September
Katalla, AK
- Average high temperature in September: 52.5°F
The warmest month (with the highest average high temperature) is July (58.6°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in September: 45.3°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in September
Katalla, AK
- Average pressure in September: 29.78"Hg
The month with the highest atmospheric pressure is July (30"Hg).
The month with the lowest atmospheric pressure is November (29.65"Hg).
Average wind speed in September
Katalla, AK
- Average wind speed in September: 8mph
The windiest months (with the highest average wind speed) are January and November (12.1mph).
The calmest month (with the lowest average wind speed) is June (5.2mph).
Average humidity in September
Katalla, AK
- Average humidity in September: 82%
The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Katalla, AK
- Average rainfall in September: 8.98"
The wettest month (with the highest rainfall) is October (9.09").
The driest month (with the least rainfall) is June (2.72").
Average rainfall days in September
Katalla, AK
- Average rainfall days in September: 20.9 days
The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is February (9.6 days).
Average snowfall in September
Katalla, AK
- Average snowfall in September: 0"
The month with the highest snowfall is December (17.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Katalla, AK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Katalla, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 5h and 1min
The months with the most sunshine are May, June and July (Average sunshine: 7h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average sunshine days in September
Katalla, AK
- Average sunshine days in September: 8 days
The month with the most sunshine days is July (12.1 days).
The month with the least sunshine days is September (8 days).
Average UV index in September
Katalla, AK
- Average UV index in September: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in September
Katalla, AK
- Average cloud cover in September: 63
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 57).
Average visibility in September
Katalla, AK
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January, August and December (5mi).
Katalla, Alaska, USA
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