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
With the onset of September, Longmire experiences a modest temperature adjustment, with the average high-temperature receding from a moderately hot 74.1°F (23.4°C) in August to a refreshing 63.9°F (17.7°C). With a significant temperature contrast, nighttime temperatures hover around an average low of 40.5°F (4.7°C) in September.Humidity
In Longmire, Washington, the average relative humidity in September is 70%.Rainfall
In Longmire, in September, it is raining for 9.5 days, with typically 1.26" (32mm) of accumulated precipitation. In Longmire, during the entire year, the rain falls for 96.1 days and collects up to 36.54" (928mm) of precipitation.Snowfall
Months with snowfall are January through July, September through December. September is the first month it typically snows. Throughout September, in the average 2 snowfall days, it receives 1.14" (29mm) of snow. In Longmire, during the entire year, snow falls for 147 days and aggregates up to 210.2" (5339mm) of snow.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:48 pm PDT.
Sunshine
The average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Longmire in September?
What is the average humidity in September?
How much does it rain in Longmire in September?
When does it start snowing?
How many hours of daylight does Longmire have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Longmire have in September?
What is the UV index reading in September?
Average temperature in September
Longmire, WA
- Average high temperature in September: 63.9°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in September: 40.5°F
The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in September
Longmire, WA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in September
Longmire, WA
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in September
Longmire, WA
- Average humidity in September: 70%
The month with the highest relative humidity is February (93%).
The months with the lowest relative humidity are July and August (63%).
Average rainfall in September
Longmire, WA
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is January (6.14").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in September
Longmire, WA
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is October (12.6 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in September
Longmire, WA
- Average snowfall in September: 1.14"
The month with the highest snowfall is January (41.73").
The month with the least snowfall is August (0").
Average snowfall days in September
Longmire, WA
- Average snowfall days in September: 2 days
The month with the highest number of snowfall days is March (22.2 days).
The month with the least snowfall days is August (0.3 days).
Average daylight in September /
Average sunshine in September
Longmire, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The months with the least sunshine are January and February (Average sunshine: 3h and 18min).
Average sunshine days in September
Longmire, WA
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in September
Longmire, WA
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Longmire, WA
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in September
Longmire, WA
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
Longmire, Washington, USA
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