Hilmar Irwin is a city of approximately 5,200 people in California, United States. Located in the Pacific Time Zone at 37.4°N latitude.
Expect a semi-arid climate in Hilmar Irwin: average highs of 96°F in midsummer, lows near 36°F in midwinter, and an annual mean of 60°F. Precipitation totals roughly 10 inches per year, concentrated around January, with July typically the driest month.
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