@hozn 109327 wrote:
wunderground.com
If you find a discrepancy in their data vs ours, let me know.
Here is the specific observation that was being used for the start (07:49) of your ride in “Vienna, VA” (the location of your ride, according to Strava — we take shortcuts and use the city when possible due to limitations in wunderground api usage allowances):
{
….
“fog”: “0”,
“hail”: “0”,
“heatindexi”: “-9999”,
“heatindexm”: “-9999”,
“hum”: “40”,
“icon”: “clear”,
“metar”: “METAR KDCA 201252Z 31008KT 10SM CLR M13/M24 A3042 RMK AO2 SLP302 T11331244”,
“precipi”: “-9999.00”,
“precipm”: “-9999.00”,
“pressurei”: “30.43”,
“pressurem”: “1030.2”,
“rain”: “0”,
“snow”: “0”,
“tempi”: “8.1”,
“tempm”: “-13.3”,
“thunder”: “0”,
“tornado”: “0”,
//
This has to be right. I distinctly remember there was no tornado that morning.