About PaloAltoWeather.com Weather • Air Quality • Seismic Activity PaloAltoWeather.com

Present Day Installation

PaloAltoWeather.com Rooftop
Photo: May 21, 2025

Present Day Computer Rack

PaloAltoWeather.com Computer Rack
Photo: May 23, 2025

RainWise Weather
Station Installed
January 26, 2019
September 18, 2022 (Retired)

RainWise Mark III-LR

Reporting to the
National Weather Service
Begins—Station F4751
(APRSWXNET/CWOP)
March 13, 2019

Click to see this station on NWS.

PaloAltoWeather.com
Goes Live
April 21, 2019

Original PaloAltoWeather.com (re-creation)

WeatherBoard™
Introduced
July 2019

Click to check out WeatherBoard!

Seismograph
Goes Live
Early August 2019
Superseeded by Shake 3D in Oct 2019
May 27, 2024 (Retired)

Raspberry Shake 4D
R3C71, AM Network, Raspberry Shake, S.A.

Infrasound Monitor
Goes Live
Mid August 2019
November 24, 2022 (Retired)

Raspberry Boom
RE991, AM Network, Raspberry Shake, S.A.

PaloAltoWeather.com
With Seismograph
October 17, 2019

Courtesy of Internet Archive

Seismograph
Upgraded
Mid October 2019

Raspberry Shake 3D
R24AE, AM Network, Raspberry Shake, S.A.

Air Quality Reporting
Goes Live
Late December 2019

PurpleAir PA-II-SD

Currently three PurpleAir
snesors are deployed.

Second Weather Station
Installed
September 1, 2020 (For Testing)
September 5, 2020 (Designated Primary)
September 18, 2022 (Designated Secondary)

Wireless Vantage Pro2™ Plus
Additional Capabilities
24-Hr Fan Aspirated Radiation Shield
Ultrasonic Anemometer
On Board UV Sensor
On Board Radiation Sensor

Davis Air Quality Sensor
Installed
September 18, 2020 (Evaluation Begins)
February 15, 2023 (Retired)

Davis AirLink

RainWise Rain
Gauge Installed
October 1, 2020
November 23, 2020 (Retired)

RainWise Rain Gauge
8" diameter collector meets NWS specifications for statistical accuracy.
This rain gauge, in turn, has subsequently been upgraded (see below).

RainWise Industrial
Rain Gauge Installed
November 23, 2020
November 24, 2022 (Retired)

RainWise Industrial Rain Gauge
8.5" diameter collector.
Meets NWS specification for
statistical accuracy.

Second Davis Vantage Pro2 Plus
Weather Station Installed
September 17, 2022
September 18, 2022 (Designated Primary)

HyQuest Solutions TB3
Rain Gauge Installed
September 17, 2022

HyQuest Solutions TB3 Rain Gauge

The world standard in
tipping rain gauges.

Due to the integrated siphon,
the gauge delivers high levels
of accuracy across a broad
range of rainfall intensities.

HyQuest Solutions TB7
Backup Rain Gauge Installed
November 24, 2022

HyQuest Solutions TB7 Rain Gauge

HyQuest Solutions’ TB7 is a high-
quality tipping bucket rain gauge
for measuring rainfall.

PurpleAir Flex Air
Quality Sensor Installed
February 15, 2023 (Evaluation Begins)
May 25, 2024 (Retired)

PurpleAir PA-II-Flex

Main & Secondary Servers
Moved To
Raspbery Pi 5 8GB Computers
May 25, 2024

PaloAltoWeather Computer Rack

PaloAltoWeather.com's servers moved
from a mix of NUC 7i5 and Raspbery Pi
servers to being completely on Raspberry
Pi 5 8G computers.

Note: PaloAltoWether.com web traffic is
served by a Google GCE instance.

Bulky Davis Consoles
Replaced by Davis Envoys
October 2024

Davis Envoy Array
Photo: May 23, 2025

PaloAltoWeather.com Rooftop Prior to
Foam Roof and Solar Installation

Pre-Construction PaloAltoWeather.com Rooftop
Photo: November 29, 2022

Rooftop Construction Begins
April 10, 2025

Solar Supports Installed
Rooftop Prepared for Foam Spraying
Photo: April 23, 2025

Foam Roof Sprayed
April 23, 2025

Spraying the Foam Roof
Photo: April 23, 2025

Initial Foam Coat Complete
Photo: April 23, 2025

Solar Panels Installed
May 1, 2025

Solar Panels Installed
Photo: May 1, 2025

Weather Station Returned to Rooftop
May 21, 2025

PaloAltoWeather.com Rooftop After Construction
Photo: May 21, 2025

Weather Station Data Construction Impact
UV, Radiation & Wind Speed/Direction
Impacted During This Time
April 10—May 21, 2025

Impact on UV during construction.

Impact on Radiation during construction.

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