Electrical question - influence of cold weather on resistance values?

[radek at istar.ca]

Hello fellow listers.

Please forgive my ignorance, I guess I must have skipped too many physics classes in high
school.
I'm trying to diagnose a coil.  I measured primary resistance and it came out at 1.3 Ohm,
correct values,
according to Bentley, are between 0.4 and 0.7 Ohm.  It was about -10 Celsius outside, real
cold.
Could the low temperature influence the reading?
Another thing that makes me suspicious is that when I touch the two ends of the probe
together,
I get a resistance of 0.6 Ohm.  Shouldn't it be zero?  My cheap electrical meter does not
have any
adjustment knobs, should I just take the difference between the two readings as the actual
result
of measurement (i.e., 1.3 - 0.6 = 0.7 Ohm = correct!)?
I will be greatful for enlightment in any form.
Thanks.

Radek
91 V8Q 5-sp
88 90Q
91 VW
EV