Areas of moderate to locally heavy rain, at least partially driven by a mature monsoon circulation, were observed across much of southern and eastern New Mexico, southeastern Arizona, the higher elevations of central Arizona, and a few scattered patches stretching from southern Utah northward through southeastern Idaho, southern Montana, and eastern Montana. A few swatches received similar amounts in western Washington. Other locations recorded little or no precipitation, although this is not uncommon during summer across much of California and the Far West. Conditions across southeastern Idaho and southern Montana have been exacerbated by temperatures averaging 6 to 10 deg F above normal during the past 30 days, including a few days of intense heat. Near- or below-normal temperatures during this period were restricted to the Pacific Northwest, central and northern California, and western Nevada. Relative humidity has been seasonably low during this period. The dry and hot conditions are not too out of character for July across California, Nevada, and southern Oregon, with drought designations unchanged from last week. Farther north, the lack of winter snowpack despite ample winter precipitation is starting to take its toll, with increasing moisture shortages leading to degradations across eastern Washington, northwestern and eastern Oregon, much of the Idaho Panhandle, and parts of eastern Montana. Meanwhile, locally heavy precipitation over the past few weeks, enhanced by rain from a mature monsoonal circulation, prompted localized areas of improvement in west-central New Mexico, parts of southeastern Arizona and some higher elevations farther north in the state, and a few places scattered across Utah.
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