Grand Junction, Colorado

39° 06.74' N | 108° 34.59' W | 4646 feet | Show on map

06:05 PMSat Apr 25

Station:Vantage Pro2
Software:weewx v5.3.1
Weewx uptime:0 days, 21 hours, 55 minutes
Server uptime:24 days, 9 hours, 8 minutes
Grand Junction, CO 81505, USA
Temperature 69.7°F Feels like 62.8°F
Humidity 22% Dew point 29.1°F
Wind 5.13 mph SSW  •  Gusts 13.00 mph
Rain Today 0.00 in Rate: 0.00 in/h
Pressure 29.436 inHg ⇩ Falling
AQI 4 — Good
UV 0.8 — Low
Lightning Distant
Shop — Closed
Garage — Closed

Controls

Station Health
Version: 0.16

Metrics:
Periods:
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Current Air Quality

Outdoor AQI 4 — Good (1.0 µg/m³)
Indoor AQI 6 — Good (1.5 µg/m³)

Current Outdoor Readings

PM 1.00 μg/m³
PM 2.51 μg/m³
PM 101 μg/m³
CO2471 ppm
Ozone (O3)20 ppb
Formaldehyde (CH2O)12 ppb
VOC Index1000
Noise30.39 dB
Outdoor Temp (uRad)73.4°F
Outdoor Humidity (uRad)24%

Current Indoor Readings

PM 1.00 μg/m³
PM 2.52 μg/m³
PM 102 μg/m³
Indoor Temp (uRad)82.3°F
Indoor Humidity (uRad)27%

Outdoor Particulate Matter

Daily Statistics

Average PM 1.00 μg/m³
Average PM 2.51 μg/m³
Average PM 101 μg/m³
Peak PM 2.52 μg/m³03:07 AM
Peak PM 108 μg/m³04:20 AM

Weekly Statistics

Average PM 1.01 μg/m³
Average PM 2.52 μg/m³
Average PM 102 μg/m³
Peak PM 2.521 μg/m³Mon 02:29 PM
Peak PM 1045 μg/m³Wed 09:19 PM

Monthly Statistics

Average PM 1.00 μg/m³
Average PM 2.51 μg/m³
Average PM 101 μg/m³
Peak PM 2.521 μg/m³Apr 20 02:29 PM
Peak PM 1071 μg/m³Apr 02 09:45 PM

Yearly Statistics

Average PM 1.01 μg/m³
Average PM 2.53 μg/m³
Average PM 103 μg/m³
Peak PM 2.5500 μg/m³Mar 18 2026 07:47 PM
Peak PM 10500 μg/m³Mar 18 2026 07:47 PM

Indoor Particulate Matter

Daily Statistics

Average PM 1.01 μg/m³
Average PM 2.51 μg/m³
Average PM 102 μg/m³
Peak PM 2.535 μg/m³04:42 PM
Peak PM 1043 μg/m³04:42 PM

Weekly Statistics

Average PM 1.00 μg/m³
Average PM 2.51 μg/m³
Average PM 102 μg/m³
Peak PM 2.545 μg/m³Fri 06:33 AM
Peak PM 1050 μg/m³Fri 06:33 AM

Monthly Statistics

Average PM 1.01 μg/m³
Average PM 2.52 μg/m³
Average PM 102 μg/m³
Peak PM 2.5142 μg/m³Apr 16 05:16 PM
Peak PM 10160 μg/m³Apr 16 05:16 PM

Yearly Statistics

Average PM 1.02 μg/m³
Average PM 2.53 μg/m³
Average PM 104 μg/m³
Peak PM 2.5166 μg/m³Mar 29 2026 10:59 AM
Peak PM 10184 μg/m³Mar 29 2026 10:59 AM

Particle Counts (Current)

0.3 µm count263
0.5 µm count74
1.0 µm count23
2.5 µm count1
5.0 µm count260
10 µm count213

Gas Concentrations

Carbon Dioxide (CO2)

Current471 ppm
Daily Average476 ppm
Daily High533 ppm05:14 PM
Daily Low408 ppm
Weekly Average496 ppm
Weekly High1064 ppmFri 07:28 AM
Monthly Average483 ppm
Monthly High1064 ppmApr 24 07:28 AM
Yearly Average478 ppm
Yearly High1818 ppmMar 16 2026 01:00 AM

Ozone (O3)

Current20 ppb
Daily Average21 ppb
Daily High88 ppb01:29 PM
Weekly Average21 ppb
Weekly High127 ppbTue 12:59 PM
Monthly Average22 ppb
Monthly High186 ppbApr 02 09:17 AM
Yearly Average21 ppb
Yearly High332 ppbMar 16 2026 12:59 AM

Formaldehyde (CH2O)

Current12 ppb
Daily Average13 ppb
Daily High64 ppb08:04 AM
Weekly Average13 ppb
Weekly High64 ppbSat 08:04 AM
Monthly Average14 ppb
Monthly High79 ppbApr 02 02:09 PM
Yearly Average13 ppb
Yearly High79 ppbApr 02 2026 02:09 PM

Volatile Organic Compounds (VOC)

Current VOC Index1000
Daily Average1003
Daily High997806:20 AM
Weekly Average1242
Weekly High72827Mon 10:49 PM
Monthly Average2917
Monthly High72827Apr 01 09:00 AM
Yearly Average5861
Yearly High72827Jan 01 2026 12:07 AM

Ambient Noise

Current Reading

Current Noise Level30.39 dB

Daily Statistics

Daily Average32.11 dB
Daily Peak52.06 dB12:55 PM
Daily Low27.50 dB

Weekly Statistics

Weekly Average32.83 dB
Weekly Peak88.53 dBFri 10:11 AM
Weekly Low25.54 dB

Monthly Statistics

Monthly Average32.89 dB
Monthly Peak88.53 dBApr 24 10:11 AM
Monthly Low25.54 dB

Yearly Statistics

Yearly Average32.67 dB
Yearly Peak88.53 dBApr 24 2026 10:11 AM
Yearly Low25.54 dB

Radiation

Current Readings

Counts Per Second0 CPM
Counts Per Minute23 CPM
Dose Rate0.124 μSv/h

Daily Statistics

Average CPM24 CPM
Peak CPM45 CPM03:24 AM
Average Dose Rate0.132 μSv/h
Peak Dose Rate0.250 μSv/h03:24 AM

Weekly Statistics

Average CPM24 CPM
Peak CPM45 CPMSat 03:24 AM
Average Dose Rate0.129 μSv/h
Peak Dose Rate0.250 μSv/hTue 10:27 PM

Monthly Statistics

Average CPM24 CPM
Peak CPM47 CPMApr 04 12:23 AM
Average Dose Rate0.130 μSv/h
Peak Dose Rate0.260 μSv/hApr 04 12:23 AM

Yearly Statistics

Average CPM24 CPM
Peak CPM52 CPMMar 05 2026 05:07 AM
Average Dose Rate0.131 μSv/h
Peak Dose Rate0.290 μSv/hJan 04 2026 05:12 AM

Air Quality Sensor Status

Online

Outdoor uRad Sensor Up: 4.5 days
Indoor uRad Sensor Up: 42.8 days | Sig: -48 dBm
Geiger Counter Up: 24.4 days | Sig: -76 dBm

Air Quality Graphs and Plots