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Daily Data Report for May 2013

Notes on Data Quality.

THUNDER BAY CS
ONTARIO
Latitude:	48°22'10.000" N	Longitude:	89°19'38.000" W	Elevation:	199.40 m
Climate ID:	6048268	WMO ID:	71667	TC ID:	ZTB

Daily Data Report for May 2013
D a y	Max Temp °C	Min Temp °C	Mean Temp °C	Heat Deg Days	Cool Deg Days	Total Rain mm	Total Snow cm	Total Precip mm	Snow on Grnd cm	Dir of Max Gust 10s deg	Spd of Max Gust km/h
Sum				270.0*	0.0*	0.0*	0.0*	120.3*
Avg	12.0*	0.6*	6.3*
Xtrm	23.9*	-4.7*								30*	78*

Summary, average and extreme values are based on the data above.
01†	12.2	1.4	6.8	11.2	0.0	M	M	0.0		28	35
02†	1.4	-2.3	-0.5	18.5	0.0	M	M	9.6		1	37
03†	-0.4	-3.2	-1.8	19.8	0.0	M	M	0.0	7	3	35
04†	3.5	-1.0	1.3	16.7	0.0	M	M	10.1	4		<31
05†	12.6	1.0	6.8	11.2	0.0	M	M	0.0			<31
06†	20.4	1.0	10.7	7.3	0.0	M	M	0.0			<31
07†	16.2	-1.0	7.6	10.4	0.0	M	M	0.0			<31
08†	20.1	0.6	10.4	7.6	0.0	M	M	3.6		5	32
09†	12.7	1.3	7.0	11.0	0.0	M	M	0.0		1	37
10†	7.6	-1.0	3.3	14.7	0.0	M	M	0.0		7	35
11†	8.7	0.3	4.5	13.5	0.0	M	M	0.0		34	57
12†	9.5	-3.5	3.0	15.0	0.0	M	M	0.0		33	48
13†	12.1	-4.7	3.7	14.3	0.0	M	M	0.0		15	33
14†	9.1	-1.6	3.8	14.2	0.0	M	M	0.0		9	32
15†	23.9	3.2	13.6	4.4	0.0	M	M	0.0		30	78
16†	15.0	-0.1	7.5	10.5	0.0	M	M	0.0			<31
17†	16.3	-2.1	7.1	10.9	0.0	M	M	0.0		8	37
18†	9.5	5.9	7.7	10.3	0.0	M	M	8.7			<31
19†	13.6	6.8	10.2	7.8	0.0	M	M	15.5		7	54
20†	11.0	7.7	9.4	8.6	0.0	M	M	55.4		8	65
21†	9.1	6.7	7.9	10.1	0.0	M	M	17.4		6	44
22
23†	14.0	0.0	7.0	11.0	0.0	M	M	0.0		5	44
24†	16.7	-2.7	7.0	11.0	0.0	M	M	0.0		11	37

Legend
[empty] = No data available
M = Missing
E = Estimated
A = Accumulated
C = Precipitation occurred, amount uncertain
L = Precipitation may or may not have occurred
F = Accumulated and estimated
N = Temperature missing but known to be > 0
Y = Temperature missing but known to be < 0
S = More than one occurrence
T = Trace
* = The value displayed is based on incomplete data
† = Data for this day has undergone only preliminary quality checking
‡ = Partner data that is not subject to review by the National Climate Archives

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Daily Data Report for May 2013