sunshine hours

March 16, 2013

Precipitation Canada February 2013

Filed under: Canada,Environment Canada Data,Precipitation — sunshinehours1 @ 11:13 PM
Tags: , ,

The data is from the monthly summaries put out by Environment Canada. The Normals are the station where the anomaly from the 1971-2000 average is calculated by EC.

Precipitation is in mm of rain equivalent. Some of it would be snow. About 25mm to the inch for the non-metric.

Boat Bluff’s 677mm is about 27 inches. In one month.  Toronto had 328% of normal. Triple.

Top 10 Wettest Stations in Canada by % of Normal. (Only stations with EC Normals)

Province Station Year Month Precipitation (mm) Precipitation % of Normal
ONT TORONTO 2013 2 165.4 328
SASK LEROY 2013 2 27 244
ONT TORONTO LESTER B. PEARSO 2013 2 92 216
SASK QUAPPELLE 1 2013 2 25.1 212
ONT WROXETER 2013 2 117.9 211
QUE GASPE A 2013 2 121.8 206
ONT FOLDENS 2013 2 98.4 192
SASK DUVAL 2013 2 20.6 186
NU RANKIN INLET A 2013 2 16.2 183
NWT FORT SIMPSON A 2013 2 31.6 181

Top 10 Wettest Stations by amount of precipitation.  Any station is eligible. NA means EC does not calculate normals.

Province Station Year Month Precipitation (mm) Precipitation % of Normal
BC BOAT BLUFF 2013 2 677.2 147
BC ZEBALLOS MURAUDE CREEK 2013 2 473.9 NA
BC TOFINO A 2013 2 469.6 NA
BC ESTEVAN POINT 2013 2 430.8 125
BC PRINCE RUPERT MONT CIRC 2013 2 430.7 NA
BC ADDENBROKE ISLAND 2013 2 425.4 NA
BC LENNARD ISLAND 2013 2 419.5 120
BC BELLA BELLA 2013 2 396 NA
BC PORT ALICE 2013 2 387.2 101
BC TAHSIS VILLAGE NORTH 2013 2 370.5 NA
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6 Comments »

  1. By my calculations, 2012 was one of the top 10 wettest years on record for BC going back to 1900.

    Comment by Glacier — March 18, 2013 @ 2:22 PM | Reply

    • Correct!

      Using only stations Environment Canada calculates normals for, and just doing a mean of all the stations Percent of Normal Precipitation, this is the top 10

      Wettest Years

      Year % of Normal Precipitation
      1997 124.4165
      1893 114.7241
      2007 112.7643
      1968 111.8933
      1996 111.4413
      2012 110.7327
      1980 110.2851
      1948 110.2197
      1990 109.3337
      1983 109.2476

      Driest Years:

      Year % of Normal Precipitation
      1929 67.22991
      1925 72.64692
      1928 73.16635
      1952 74.63889
      1930 75.07143
      1938 75.51724
      1922 75.54098
      1943 77.65633
      1904 78.71304
      1944 80.42070

      Comment by sunshinehours1 — March 19, 2013 @ 12:22 PM | Reply

      • Oops, I should have replied here and not below.

        Comment by Glacier — March 19, 2013 @ 2:14 PM

  2. I have my own way of calculating the wettest, driest, hottest,, coldest, etc. years. I form a matrix and compare all weather stations against all other years for which each weather station existed. My final answer is a percentage relative to other years. If I get more time I’ll turn this into more meaningful variable such as % of normal. (see link: http://forums.castanet.net/viewtopic.php?f=22&t=49469)

    With my method, the 10 wettest years in BC since 1890 were (it’s interesting how we both pegged 2012 as the 6th wettest):
    1990
    1997
    1996
    1999
    1968
    2012
    1893
    1971
    2007
    1995

    The 10 driest were:
    1929
    1930
    1922
    1952
    1943
    1928
    1938
    1926
    1925
    1970

    Comment by Glacier — March 19, 2013 @ 1:32 PM | Reply

  3. It has just occurred to me that you were talking about February? My calculation was based on the annual precipitation, which might help explain some of the differences.

    Comment by Glacier — March 19, 2013 @ 2:12 PM | Reply

    • I did Annual. But EC only calculates % of normal for a select groups of weather stations.

      If you check my list “Top 10 Wettest Stations by amount of precipitation”, 6 of the 10 have NA in the right hand column meaning EC does not calculate Normals for them.

      Comment by sunshinehours1 — March 19, 2013 @ 2:36 PM | Reply


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