September weather forecastMalott, WA
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Malott, Washington, with an average temperature varying between 71.2°F (21.8°C) and 49.5°F (9.7°C).Temperature
Malott's weather in September involves a decrease in the average high-temperature, moving down from August's warm 83.1°F (28.4°C) to a pleasant 71.2°F (21.8°C). Malott documents a substantial deviation from daytime highs with a consistent low-temperature of 49.5°F (9.7°C) during September nights.Humidity
In Malott, the average relative humidity in September is 49%.Rainfall
In September, the rain falls for 6.2 days. Throughout September, 0.55" (14mm) of precipitation is accumulated. In Malott, during the entire year, the rain falls for 101.3 days and collects up to 9.45" (240mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Malott, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 6:17 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:39 pm PDT.
Sunshine
In Malott, the average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Malott, WA
- Average high temperature in September: 71.2°F
The warmest months (with the highest average high temperature) are July and August (83.1°F).
The months with the lowest average high temperature are January and December (30.7°F).
- Average low temperature in September: 49.5°F
The month with the highest average low temperature is August (57°F).
The coldest month (with the lowest average low temperature) is December (18.9°F).
Average pressure in September
Malott, WA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in September
Malott, WA
- Average wind speed in September: 4.8mph
The windiest months (with the highest average wind speed) are April, June and July (5.3mph).
The calmest month (with the lowest average wind speed) is January (3.5mph).
Average humidity in September
Malott, WA
- Average humidity in September: 49%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (40%).
Average rainfall in September
Malott, WA
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is December (1.34").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Malott, WA
- Average rainfall days in September: 6.2 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in September
Malott, WA
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.72").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Malott, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (9.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Malott, WA
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 10h and 48min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Malott, WA
- Average sunshine days in September: 22.5 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (13.7 days).
Average UV index in September
Malott, WA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Malott, WA
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in September
Malott, WA
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
