APRS/CWOP weather report from K9JM – aprs.fi

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Comment:	.weewx-5.1.0-Vantage
Location:	39°06.80' N 121°03.19' W - locator CM99LC37OE - show map 3.1 km South bearing 179° from Alta Sierra, Nevada County, California, United States [?] 8.7 km West bearing 279° from Colfax, Placer County, California, United States 70.4 km Northeast bearing 33° from Sacramento, Sacramento County, California, United States 116.1 km Southwest bearing 247° from Reno, Washoe County, Nevada, United States
Last WX report:	2025-11-01 04:45:16 UTC (13m38s ago) 2025-10-31 21:45:16 PDT local time at Alta Sierra, United States [?]
Temperature:	16.7 °C
Dew point:	9.4 °C
Humidity:	62 %
Pressure:	1018.2 mbar
Wind:	0.0 m/s (Gusts 0.0 m/s)
Rain:	0.0 mm during last 1 hour, 0.0 mm during last 24 hours, 0.0 mm since midnight

This page shows weather data collected mostly by privately owned and operated weather stations. Stations with a CW-prefixed, numbered callsign are taking part in the Citizen Weather Observer Program (CWOP). Most other weather stations are amateur radio operators with a weather station. Some information is also converted by individuals from publicly available sources like airport weather reports.