Weather for Geeks

Station telemetry, instrumentation, historical data and assorted atmospheric geekery

Station data updated: 04:25 PM · October 28, 2026

Jump to: Atmosphere · Wind · Rainfall · Solar & UV · Sun & Moon · History · Station · Oddities

Atmospheric Parameters

Measurements and derived atmospheric values

Dew Point

63.7°F

Heat Index

78.7°F

Barometric Pressure

30.030 inHg

3-hour change -0.057 inHg

Wind

Current and short-term wind behavior

Current Wind

6 mph

S (177°)

Current Gust

14 mph

S

10-Minute Average

7 mph

Average wind speed · last 10 minutes

10-Minute Peak

16 mph

Peak gust · last 10 minutes

Since Midnight

20 mph

Peak gust · 02:20 PM

Past 24 Hours

20 mph

Peak gust · Oct 28 · 02:25 PM

Rainfall

Because every hundredth of an inch matters in the Hill Country

Today

0.00 in

Yesterday

0.00 in

Month

2.61 in

Year

27.31 in

Solar & UV

Solar radiation and ultraviolet observations

Solar Radiation

484 W/m²

Strong

Weak Moderate Strong Very Strong Intense

Current solar irradiance level

UV Index

2.8

—

Low Moderate High Very High Extreme

Sun exposure risk level

THSW Index

82.7°F

Calculated locally

Sun/wind impact on temperature: +5.1°F

Sun & Moon Almanac

Solar and lunar events calculated for the Harper weather station

Sun

Start Civil Twilight 07:23:21 AM

Sunrise 07:48:27 AM

Solar Noon 01:21:05 PM

Sunset 06:53:20 PM

End Civil Twilight 07:18:25 PM

Azimuth 232.3°

Altitude 27.9°

Declination -13.3°

Next Equinox 03/20/2027 03:24:32 PM

Next Solstice 12/21/2026 02:49:59 PM

Moon

Moonrise 08:51:25 PM

Transit 03:16:19 AM

Moonset 10:42:36 AM

Azimuth 9.3°

Altitude -32.9°

Declination 26.3°

Phase Waning gibbous

Illumination 90% full

Next New Moon 11/09/2026 01:02:03 AM

Next Full Moon 11/24/2026 08:53:29 AM

Historical Weather

Harper station history, trends and climatological summaries

Temperature History

Harper temperature and dew point history

Rainfall History

Wind History

Pressure History

Station Records

Last checked: —

Highest Temperature — —

Lowest Temperature — —

Lowest Wind Chill — —

Highest Wind Gust — —

Highest Rain Rate — —

Wettest Day — —

Wettest Month — —

Wettest Year — —

Station records based on archived Harper weather observations.

Monthly Climatological Summaries

Daily temperature, rainfall, wind and degree-day observations

Reports are generated from the Harper WeeWX archive. The current month's report is updated as new observations are added to the database.

Current Year

YTD High

101.5°F

Aug 27, 2026

YTD Low

11.6°F

Jan 25, 2026

YTD Rain

27.31 in

Through Oct 28

Highest Wind

40 mph

Feb 14, 2026

Climatological Report Archive

Select a month for the complete daily report

Loading climatological archive…

Earlier Years

JavaScript is required for the climatological archive navigation.

View report inventory

Station & Instrumentation

The hardware behind the numbers

Weather Receiver

WeatherLink Live

Local network acquisition

Network Switch Temperature: 84.8°F

Network Switch Humidity: 35%

Wind

Davis Vantage Pro2

Transmitter 1

Battery: OK

Temperature / Humidity / Rain

Davis Vantage Pro2

Transmitter 2

Battery: OK

Weather Software

WeeWX 5.5.2

Harper weather server
Custom design by John Canfield
Coding assistance by ChatGPT

Weather Oddities & Geek Calculations

Interesting numbers that nobody actually needs — which is precisely why they belong here

Weather Server Uptime —

CPU Temperature —

WeeWX Service Uptime —

System Load —

Disk Space Available —

Last Weather Archive —

Current Distance to Mars —