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
In Loomis, the beginning of September is marked by a lowered average high-temperature, shifting from August's warm 79.2°F (26.2°C) to a comfortable 67.8°F (19.9°C). In Loomis, the average temperature during the nights of September marks a significant drop from the daily high, settling at a chilly 42.8°F (6°C).Humidity
In September, the average relative humidity in Loomis, Washington, is 60%.Rainfall
In Loomis, during September, the rain falls for 9.6 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Loomis, Washington, during the entire year, the rain falls for 112.2 days and collects up to 14.69" (373mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Loomis, Washington. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 2.09" (53mm) of snow. In Loomis, during the entire year, snow falls for 89.6 days and aggregates up to 47.44" (1205mm) of snow.Daylight
In September, the average length of the day in Loomis is 12h and 34min.On the first day of the month, sunrise is at 6:16 am and sunset at 7:39 pm. On the last day of September, in Loomis, sunrise is at 6:57 am and sunset at 6:38 pm PDT.
Sunshine
The average sunshine in September in Loomis is 10.4h.UV index
In Loomis, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Take necessary precautions - Defending against sun damage is advocated. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What is the average September temperature in Loomis?
What is the average humidity in September in Loomis?
How much does it rain in Loomis in September?
When does it start to snow in Loomis?
What is the average length of the day in September in Loomis?
When is the sunrise / sunset in September in Loomis?
How many hours of sunshine does Loomis have in September?
What is the UV index reading in September in Loomis?
Average temperature in September
Loomis, WA
- Average high temperature in September: 67.8°F
The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (27°F).
- Average low temperature in September: 42.8°F
The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in September
Loomis, WA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in September
Loomis, WA
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest months (with the lowest average wind speed) are January, February and December (3.7mph).
Average humidity in September
Loomis, WA
- Average humidity in September: 60%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (49%).
Average rainfall in September
Loomis, WA
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is August (0.47").
Average rainfall days in September
Loomis, WA
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (5.7 days).
Average snowfall in September
Loomis, WA
- Average snowfall in September: 2.09"
The month with the highest snowfall is December (9.76").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Loomis, WA
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Loomis, WA
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Loomis, WA
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is March (10.8 days).
Average UV index in September
Loomis, WA
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Loomis, WA
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Loomis, WA
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Loomis, Washington, USA
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