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Document Date
June 26, 2025
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NOAA’s National Integrated Drought Information System (NIDIS) and Physical Sciences Laboratory are partnering with the California State Climatologist/California Department of Water Resources, NOAA’s National Weather Service and National Centers for Environmental Information, and the California-Nevada Adaptation Program (a NOAA CAP team) on the Sector-Specific Drought Early Warning Outlook – Southern California Pilot.

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Document Date
June 23, 2025
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Quarterly Climate Impacts and Outlook for the Western Region for March–May 2025. Dated June 2025.

Spring temperatures were near to above average for most of the West, with some pockets of below-average temperatures along the California coast and in other parts of the Southwest. In large swaths of the West, less than 70% of average precipitation was observed. Less than 50% of average precipitation was observed in parts of north-central California, southern Arizona, and southwest New Mexico. 

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Document Date
May 22, 2025
Document Description

NOAA’s National Integrated Drought Information System (NIDIS) and Physical Sciences Laboratory are partnering with the California State Climatologist/California Department of Water Resources, NOAA’s National Weather Service and National Centers for Environmental Information, and the California-Nevada Adaptation Program (a NOAA CAP team) on the Sector-Specific Drought Early Warning Outlook – Southern California Pilot.

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Document Date
April 4, 2025
Document Description

NOAA’s National Integrated Drought Information System (NIDIS) and Physical Sciences Laboratory are partnering with the California State Climatologist/California Department of Water Resources, NOAA’s National Weather Service and National Centers for Environmental Information, and the California-Nevada Adaptation Program (a NOAA CAP team) on the Sector-Specific Drought Early Warning Outlook – Southern California Pilot.

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Document Date
March 21, 2025
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Quarterly Climate Impacts and Outlook for the Western Region for December 2024–February 2025. Dated March 2025.

Winter temperatures were above normal across the Southwest with California and Arizona both ranking as the fourth warmest on record. Temperatures were closer to normal in the Pacific Northwest and northern Rockies with some areas of below-normal temperatures in Montana. Winter precipitation was much below normal across the Southwest. Much of Oregon, eastern Washington, southern Idaho, and Montana saw above-normal winter precipitation.

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Document Date
February 27, 2025
Document Description

NOAA’s National Integrated Drought Information System (NIDIS) and Physical Sciences Laboratory are partnering with the California State Climatologist/California Department of Water Resources, NOAA’s National Weather Service and National Centers for Environmental Information, and the California-Nevada Adaptation Program (a NOAA CAP team) on the Sector-Specific Drought Early Warning Outlook – Southern California Pilot.

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Document Date
January 23, 2025
Document Description

NOAA’s National Integrated Drought Information System (NIDIS) and Physical Sciences Laboratory are partnering with the California State Climatologist/California Department of Water Resources, NOAA’s National Weather Service and National Centers for Environmental Information, and the California-Nevada Adaptation Program (a NOAA CAP team) on the Sector-Specific Drought Early Warning Outlook – Southern California Pilot.

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Document Date
December 20, 2024
Document Description

Quarterly Climate Impacts and Outlook for the Western Region for September–November 2024. Dated December 2024.

Autumn temperatures were above normal across the West, and every state except for Oregon had a top ten warmest autumn since 1895. Northern California, southern Oregon, central Montana, and northeast New Mexico all saw areas of well-above-normal precipitation in autumn. Southeast California, southern Nevada, and western Arizona were exceptionally dry.

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Document Date
December 5, 2024
Document Description

NOAA’s National Integrated Drought Information System (NIDIS) and Physical Sciences Laboratory are partnering with the California State Climatologist/California Department of Water Resources, NOAA’s National Weather Service and National Centers for Environmental Information, and the California-Nevada Adaptation Program (a NOAA CAP team) on the Sector-Specific Drought Early Warning Outlook – Southern California Pilot.

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Document Date
October 24, 2024
Document Description

NOAA’s National Integrated Drought Information System (NIDIS) and Physical Sciences Laboratory are partnering with the California State Climatologist/California Department of Water Resources, NOAA’s National Weather Service and National Centers for Environmental Information, and the California-Nevada Adaptation Program (a NOAA CAP team) on the Sector-Specific Drought Early Warning Outlook – Southern California Pilot.