Warmer-than-normal temperatures dominated the region this past week. Departures were 6–8 degrees above normal across most of Utah, Colorado, and Wyoming. Only the Sierra Nevada area and northern California were near to slightly below normal.

Precipitation was mixed, with parts of northern California, northern Nevada, eastern Oregon, southern Utah, eastern and western New Mexico, southwest Idaho, and eastern Washington receiving above-normal precipitation.

The lack of snowpack will continue to impact the region in the coming months. Earlier-than-normal snowmelt, below-normal seasonal totals, and increased liquid precipitation are contributing to hydrological impacts.

Changes this week included improvements in moderate drought in northeastern California and expansion of moderate and severe drought in southern Arizona. Southern Idaho into northern Nevada saw expansion of severe, extreme, and exceptional drought, while severe drought expanded across eastern and northern New Mexico.

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