different data for the same station on wunderground.com and station

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  • Problem
  • Updated 6 years ago
I found difference in temperatures when compare data for many stations on the http://www.wunderground.com site and data from the same stations on Russian weather sites.
I believe data on Russian sites are correct because they are coinciding for the same stations.

For example: for station 27612 http://www.wunderground.com/history/s...
for 2014/02/05/ temperatures on:
time wunderground.com - data from this station:
0a.m. -2 -2.6
3a.m. -3 -3.1
6a.m. -3 -3.6
9a.m. -4 -3.4

Why is there difference in data if wunderground.com clame:” International current conditions are collected directly from more than 29,000 weather stations located in countries around the globe including:”

wunderground.com rounded temperatures: for example station report temperature in Moscow -3,4C at 9p.m. wunderground.com show -4.0C for the same station at 10p.m.

Why do you round data ?

In addition wunderground.com shows wrong times – mistake in 1 hour. Stations collected data at 0, 3, 6, 9 ... hours but wunderground.com show times: 1, 4, 7, 10.

You have very good site ... but all those mistakes in data nullify all advantages.

I am sorry for writing this, but I am really disappointed.
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Posted 6 years ago

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