September weather forecastLarrabee, IA
September
Weather in September
September, the first month of the autumn in Larrabee, is also a moderately hot month, with an average temperature fluctuating between 73.8°F (23.2°C) and 55°F (12.8°C).Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 79.3°F (26.3°C) in August to a still warm 73.8°F (23.2°C). In September, Larrabee experiences an average nighttime temperature of 55°F (12.8°C).Humidity
In Larrabee, the average relative humidity in September is 73%.Rainfall
In Larrabee, during September, the rain falls for 10.6 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Larrabee, during the entire year, the rain falls for 117 days and collects up to 19.84" (504mm) of precipitation.Snowfall
June through September are months without snowfall in Larrabee.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:56 pm. On the last day of September, in Larrabee, sunrise is at 7:19 am and sunset at 7:04 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
In Larrabee, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the UV index of 4 transforms into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Larrabee, IA
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in September
Larrabee, IA
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Larrabee, IA
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in September
Larrabee, IA
- Average humidity in September: 73%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in September
Larrabee, IA
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Larrabee, IA
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Larrabee, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Larrabee, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Larrabee, IA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Larrabee, IA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in September
Larrabee, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Larrabee, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Larrabee, IA
- 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).
