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Sunnyside, Wa
>September
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Precipitation
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Weather in September in Sunnyside, Wa
<
September
>
Normal Max/ High Temperature
26°C (79°F)
Average Temperature
17°C (63°F)
Min/ Low Temperature
8°C (47°F)
Normal Precipitation
11mm (0.4in)
Average Daylight per day
12h 29'
Sun altitude at solar noon on the 21st day.
44.5°
The average temperature in Sunnyside, Wa in September is very mild at 17.2 °C (62.96 °F).
Afternoons can be hot with
average high temperatures
reaching 26.3 °C (79.3 °F).
Overnight temperatures
are generally a little cool with an average low of 8.2 °C (46.8 °F).
The variation/ range of diurnal mean temperatures in September is 18.1 °C (32.6 °F).
Precipitation averages for September are low with 11.2mm (0.4 in) recorded.
The shortest day is 11h 41'
long
and the longest day is 13h 17' long with an average length of 12h 29'.
Weather Trend Graph for September in Sunnyside, Wa, Usa
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