Location: North Willow Glen, San Jose, Ca, USA
Altitude: 125 feet, Grid 37°18.544 , 121°54.521
Arduino based Weather Station

Temperature

Last Update 9/9/26 1:48 AM
Outdoor Temperature 71.2 °F (21.8 °C)
Relative Humidity % 66 %
Outdoor Temperature Difference from 24 Hours ago 6.6 °F
Outdoor Temperature Change per Hour -1.4 °F/Hr
Dewpoint 59.4 °F
Heat Wind Humidity Index 74.5 °F

Maximum Temperature since midnight 73.6 °F at: 12:04 AM
Minimum Temperature since midnight 71.2 °F at: 1:48 AM
Maximum Temperature in the last 24 hours 91.6 °F at: 3:54 PM yesterday
Minimum Temperature in the last 24 hours 57.4 °F at: 7:00 AM yesterday
Maximum Temperature yesterday 91.6 °F at: 3:54 PM
Minimum Temperature yesterday 57.4 °F at: 7:00 AM
Meteorlogical Mean Temperature Yesterday 74.0 °F
True Mean Temperature Yesterday 69.1 °F

Growing degree days Yesterday 21.7 °F
Cooling degree days Yesterday 9.0 °F
Maximum Temperature last 7 days 91.6 °F at: 3:54 PM yesterday
Minimum Temperature last 7 days 53.1 °F at: 9/7/26 7:00 AM
Cloudbase 2840 feet MSL
Zero °C Isotherm 9728 feet MSL
Relative Humidity Reading % 66 %
Dewpoint Reading 59.9 °F
Natural Wet Bulb temperature (estimated) 66.4 °F
Growing degree days mean temperature Yesterday 71.7 °F
Grow hours Today 1:44 hrs
Grow hours Yesterday 23:59 hrs
True Grow degree-days Today 1.63 °F degree-days
True Grow degree-days Yesterday 19.09 °F degree-days

Today is 6.6 °F warmer than yesterday at this time.

Charts updated at 9/9/26 1:46 AM
outdoor temperature day-to-day change

outdoor temperature 24 hour timescale

outdoor temperature 7 day timescale

outdoor humidity 24 hour timescale

outdoor humidity 7 day timescale

zero isotherm 24 hour timescale

zero isotherm 7 day timescale


OpenJ2300 (c) Dennis Ernst OpenJ2300
OpenJ2300 (c) David George OpenJ2300