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

Long Term Weather

Last Update 5/7/25 8:59 AM
Mean Temperature Yesterday 68.4 °F
True Mean Temperature Yesterday 66.0 °F
Mean Temperature last 7 days 62.8 °F
Mean Temperature this month 62.6 °F
Mean Temperature last 30 days 61.0 °F
Mean Temperature last month 60.4 °F
Mean Temperature last 60 days 59.1 °F
Mean Temperature last 90 days 57.8 °F

Maximum Temperature last 7 days 83.8 °F at: 5/5/25 4:41 PM
Minimum Temperature last 7 days 48.5 °F at: 5/4/25 7:25 AM
Maximum Temperature this month 83.8 °F at: 5/5/25 4:41 PM
Minimum Temperature this month 48.5 °F at: 5/4/25 7:25 AM
Maximum Temperature last 30 days 83.8 °F at: 5/5/25 4:41 PM
Minimum Temperature last 30 days 46.7 °F at: 4/26/25 7:00 AM
Maximum Temperature last month 81.0 °F at: 4/29/25 3:37 PM
Minimum Temperature last month 41.5 °F at: 4/3/25 7:00 AM
Maximum Temperature last 60 days 87.2 °F at: 3/25/25 1:54 PM
Minimum Temperature last 60 days 41.2 °F at: 3/19/25 7:30 AM
Maximum Temperature last 90 days 87.2 °F at: 3/25/25 1:54 PM
Minimum Temperature last 90 days 35.9 °F at: 2/10/25 7:30 AM

Rainfall last 7 days 0.01 In
Rainfall last 30 days 0.02 In
Rainfall last 60 days 1.84 In
Rainfall last 90 days 3.96 In
Max one hour Rainfall at 12/14/24 7:00 AM 0.43 In
Max 24 hr Rainfall at 12/15/24 8:00 AM 1.21 In
Total Rainfall since 10/1/24 12:00 AM 8.81 In
Total Rainfall last year to date 14.82 In
Total Rainfall entire last year 14.82 In

Growing degree days measures the time each day spent in the ideal plant growth range¹
Growing degree days last 7 days 115.6 °F
Growing degree days this month 84.8 °F
Growing degree days last 30 days 324.4 °F
Growing degree days last month 305.0 °F
Growing degree days last 60 days 602.5 °F
Growing degree days last 90 days 834.0 °F
Growing degree days this season 1007.1 °F
Growing degree days last season to date 1000.2 °F
Growing degree days entire last season 4976.9 °F
¹ Between 50 °F and 86 °F

Heating degree days estimates the heat required each day²
Heating degree days last 7 days 21.3 °F
Heating degree days this month 18.6 °F
Heating degree days last 30 days 114.0 °F
Heating degree days last month 148.6 °F
Heating degree days last 60 days 350.0 °F
Heating degree days last 90 days 639.5 °F
Heating degree days this season 2088.5 °F
Heating degree days last season to date 1957.8 °F
Heating degree days entire last season 1964.8 °F
² Degree-hours below 65 °F

Cooling degree days estimates the air conditioning required each day³
Cooling degree days last 7 days 4.4 °F
Cooling degree days this month 4.4 °F
Cooling degree days last 30 days 5.4 °F
Cooling degree days last month 1.0 °F
Cooling degree days last 60 days 13.7 °F
Cooling degree days last 90 days 13.7 °F
Cooling degree days this season 13.7 °F
Cooling degree days last season to date 10.1 °F
Cooling degree days entire last season 1065.2 °F
³ Degree-hours above 65 °F

Chill hours measures the time each day spent below 45 °F
Chill hours yesterday 0.00 hrs
Chill hours last 60 days 29.71 hrs
Chill hours last 90 days 99.98 hrs
Chill hours this season 1011.58 hrs
Chill hours last season to date 806.92 hrs
Chill hours entire last season 806.92 hrs
Non-Freezing Chill hours this season 1011.58 hrs
Non-Freezing Chill hours last season to date 806.92 hrs
Non-Freezing Chill hours entire last season 806.92 hrs


outdoor temperature for the last 366 days


Wind gust for the last 366 days


rainfall for the last 366 days


Growing Degree Days for the last 366 days


Heating Degree Days for the last 366 days


Cooling Degree Days for the last 366 days


Chill Hours for the last 366 days

OpenJ2300 (c) Dennis Ernst OpenJ2300