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 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 advent of September brings a slight shift in average high-temperature, moving from 93.7°F (34.3°C) in August to a still tropical 88.2°F (31.2°C). Wallace experiences a significant downturn from peak daytime temperatures throughout September, with the average low-temperature dipping to a refreshing 58.1°F (14.5°C).Heat index
September's mean heat index is computed to be a tropical 89.6°F (32°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.In reference to the heat index, it's for places in shade and with a slight wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
In Wallace, California, the average relative humidity in September is 43%.Rainfall
In September, in Wallace, the rain falls for 2.1 days. Throughout September, 0.16" (4mm) of precipitation is accumulated. Throughout the year, there are 70.8 rainfall days, and 15.91" (404mm) of precipitation is accumulated.Snowfall
In Wallace, snow does not fall in January through November.Daylight
In Wallace, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:34 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:47 pm PDT.
Sunshine
In Wallace, the average sunshine in September is 11.3h.UV index
The average daily maximum UV index in September in Wallace is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
How hot does it get in Wallace in September?
What is the average humidity in September in Wallace?
How many days does it rain in September in Wallace?
When it does not snow in Wallace?
What is the average length of the day in September in Wallace?
When is the sunrise / sunset in September in Wallace?
How long on average sun shines in September in Wallace?
How high is the UV index in September in Wallace?
Average temperature in September
Wallace, CA
- Average high temperature in September: 88.2°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in September: 58.1°F
The months with the highest average low temperature are July and August (59.4°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in September
Wallace, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Wallace, CA
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is February (5.6mph).
The calmest month (with the lowest average wind speed) is September (4mph).
Average humidity in September
Wallace, CA
- Average humidity in September: 43%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (41%).
Average rainfall in September
Wallace, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is March (2.91").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Wallace, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (13.2 days).
The month with the least rainy days is August (0.8 days).
Average snowfall days in September
Wallace, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Wallace, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Wallace, CA
- Average sunshine days in September: 27.4 days
The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is March (16.8 days).
Average UV index in September
Wallace, CA
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Wallace, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Wallace, 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).
Wallace, California, USA
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