Update: Commenter Glacier pointed out the Sikanni Chief data was incorrect. The monthly summary was not based on correct daily data.
Dease Lake replaces Sikanni Chief.
| Prov | Min Temp C. | Stn Name | Lat | Long |
| BC | -29.9 | DEASE LAKE (AUT) | 58.426 | -130.026 |
The data is from the monthly summary put out by Environment Canada for March 2013.
These are the stations with the coldest minimum temperature for one 24 hour period in each province.
| Prov | Min Temp C. | Stn Name | Lat | Long |
| NU | -51.5 | EUREKA | 79.983 | -85.933 |
| MAN | -46 | PINAWA WNRE | 50.181 | -96.058 |
| NWT | -46 | THOMSEN RIVER | 73.231 | -119.538 |
| QUE | -41 | RIVIERE AUX FEUILLES | 57.909 | -72.976 |
| SASK | -40.6 | KEY LAKE, SK | 57.25 | -105.6 |
| ALTA | -38.8 | FORT CHIPEWYAN RCS | 58.767 | -111.117 |
| YT | -38.8 | OLD CROW RCS | 67.571 | -139.839 |
| ONT | -38.3 | LANSDOWNE HOUSE (AUT) | 52.196 | -87.936 |
| NFLD | -30.8 | WABUSH | 52.923 | -66.865 |
| NB | -18.7 | JUNIPER | 46.55 | -67.167 |
| PEI | -17 | TYNE VALLEY 2 | 46.546 | -63.969 |
| NS | -14.2 | PORT HAWKESBURY | 45.657 | -61.368 |
sunshine hours 
The SIKANNI CHIEF reading was an error. It was actually only about -13 that day… http://www.climate.weatheroffice.gc.ca/climateData/hourlydata_e.html?timeframe=1&Prov=BC&StationID=1440&dlyRange=1990-09-01|2013-04-05&Year=2013&Month=3&Day=11
Thanks
I’ve noticed that Environment Canada makes a lot of mistakes and errors these days.
Been on vacation and just got back.
Eureka also holds the record for the coldest mean month in North America
-47.9C in February 1979….thankfully, I arrived in March!!!