This table compares data from Davis Vantage Pro2 and WeatherFlow Tempest weather stations installed at my home.
The data entries list Davis / WeatherFlow / Difference.

Compare Data From:

Date Time (ET) Temp RH Dewpt Windsp WindDir Barom 5min Rain Total Rain SolRad
5/7/2025 00:05 56.5 / 55.6
0.9
80 / 86
-6
50.4 / 51.5
-1.1
1.0 / 1.6
-0.6
SSE / SSW
30.050 / 30.067
-0.017
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:10 56.7 / 55.8
0.9
79 / 86
-7
50.3 / 51.6
-1.3
2.0 / 2.2
-0.2
S / SW
30.053 / 30.070
-0.017
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:15 56.8 / 55.9
0.9
79 / 85
-6
50.4 / 51.5
-1.1
1.0 / 1.8
-0.8
S / SW
30.058 / 30.073
-0.015
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:20 56.8 / 56.1
0.7
79 / 84
-5
50.4 / 51.4
-1.0
1.0 / 2.0
-1.0
S / SW
30.057 / 30.073
-0.016
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:25 56.8 / 56.1
0.7
79 / 84
-5
50.4 / 51.4
-1.0
1.0 / 1.8
-0.8
S / SSW
30.057 / 30.073
-0.016
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:30 56.7 / 56.3
0.4
79 / 85
-6
50.3 / 51.8
-1.5
1.0 / 1.8
-0.8
SSE / S
30.058 / 30.073
-0.015
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:35 56.5 / 56.1
0.4
80 / 85
-5
50.4 / 51.7
-1.3
1.0 / 2.2
-1.2
SSE / SSW
30.057 / 30.073
-0.016
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:40 56.3 / 55.9
0.4
80 / 84
-4
50.2 / 51.2
-1.0
1.0 / 2.2
-1.2
SSE / SW
30.059 / 30.073
-0.014
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:45 56.2 / 56.1
0.1
80 / 84
-4
50.1 / 51.4
-1.3
2.0 / 2.2
-0.2
SSE / S
30.058 / 30.073
-0.015
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:50 56.2 / 56.1
0.1
80 / 84
-4
50.1 / 51.4
-1.3
1.0 / 2.0
-1.0
SSE / SSW
30.059 / 30.073
-0.014
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 00:55 56.2 / 55.9
0.3
80 / 84
-4
50.1 / 51.2
-1.1
2.0 / 2.5
-0.5
SSE / SSW
30.060 / 30.076
-0.016
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 01:00 56.1 / 55.9
0.2
80 / 84
-4
50.0 / 51.2
-1.2
2.0 / 2.2
-0.2
S / SSW
30.060 / 30.076
-0.016
0.00 / 0.00
0.00
0.00 / 0.00
0.00
0 / 0
0
5/7/2025 01:05 56.0 / no data 80 / no data 49.9 / no data 2.0 / no data SSW / no data 30.060 / no data 0.00 / no data 0.00 / no data 0 / no data
5/7/2025 01:10 55.9 / no data 80 / no data 49.8 / no data 1.0 / no data SSW / no data 30.062 / no data 0.00 / no data 0.00 / no data 0 / no data
5/7/2025 01:15 56.0 / no data 80 / no data 49.9 / no data 2.0 / no data S / no data 30.057 / no data 0.00 / no data 0.00 / no data 0 / no data
Average Diff --:-- 0.5 -5.0 -1.2 -0.7 --- -0.016 0.00 --- 0

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