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Weather in Poston, AZ · National Weather Service + NOAA

Poston has hot summers

Poston has warm winters and scorching summers, with very little rain. A typical July afternoon reaches 110°, a January night drops to 42°, and snow is almost unheard of. A typical November afternoon reaches 77°, and nights fall to 49°.

Winter 69°/43°Spring 88°/59°Summer 108°/80°Fall 90°/62°
Right now
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Sunrise 8:59 am · sunset 7:43 pm

Getting the latest forecast from the National Weather Service…

What stands out about Poston’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Hot summersJuly afternoons average 110°, hotter than 100% of U.S. towns.It hardly ever freezesOnly 88% of years see a night at 32° or below.Milder winters than most of ArizonaJanuary nights average 42°, milder than 426 of 467 Arizona towns.Snow is rareNo measurable snow in a normal year.
A normal year

Where today sits in Poston’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
69° / 43°
Snow is rare
Spring
88° / 59°
Frost is rare by spring
Summer
108° / 80°
185 days reach 90° in a normal year
Fall now
90° / 62°
Mild well into the fall
Best months to be outside
JanFebMarNovDec
Highs of 62–84° and lows of 40° or more
How much snow does Poston get?Almost none.When is it wettest?January, with 0.7 inches.Is it warmer than it used to be?+2.0° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Poston.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Poston itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Parker, AZ (13 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.