September weather forecastMyrtle, MO
September
Weather in September
September, the first month of the autumn in Myrtle, is still a warm month, with an average temperature ranging between min 62.2°F (16.8°C) and max 82.6°F (28.1°C).Temperature
Myrtle records a mild change in average high-temperature during September, easing from a tropical 88°F (31.1°C) in August to a moderately hot 82.6°F (28.1°C). The temperature dips to an average of 62.2°F (16.8°C) during September nights.Heat index
September's average heat index is estimated at a hot 87.8°F (31°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Observations indicate that the heat index values are for shady locations with light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In Myrtle, Missouri, the average relative humidity in September is 72%.Rainfall
The month with the least rainfall in Myrtle, Missouri, is September, when the rain falls for 10.5 days and typically collects 1.69" (43mm) of precipitation.Snowfall
In Myrtle, snow does not fall in April through September.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:32 pm. On the last day of September, in Myrtle, Missouri, sunrise is at 7:00 am and sunset at 6:49 pm CDT.
Sunshine
In Myrtle, the average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September in Myrtle is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Myrtle, MO
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Myrtle, MO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Myrtle, MO
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in September
Myrtle, MO
- Average humidity in September: 72%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Myrtle, MO
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Myrtle, MO
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in September
Myrtle, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Myrtle, MO
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.8 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Myrtle, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Myrtle, MO
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in September
Myrtle, MO
- 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 and December (UV index 2).
Average cloud cover in September
Myrtle, MO
- Average cloud cover in September: 29
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Myrtle, MO
- 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).
