14 
Table II 
Average Monthly and Annual Precipitation 
(inches) 
1 
2 
3 
4 
5 
6 
7 
8 
Years obs 
66 
29 
11 
20 
27 
40 
11 
30 
J arm ary 
0.92 
0.73 
0.63 
0.79 
0.61 
0.69 
0.60 
0.48 
F ebruary 
0.86 
0.58 
0.65 
0.75 
0.50 
0.78 
0.46 
0.61 
March 
1.19 
0.76 
1.14 
1.00 
0.72 
1.01 
0.58 
0.87 
April 
1.37 
0.99 
0.79 
0.92 
0.81 
0.74 
0.88 
0.89 
May 
2.26 
1.62 
1.52 
1.41 
1.38 
1.08 
0.85 
0.93 
June 
3.15 
2.77 
3.41 
2.49 
2.20 
1.93 
2.07 
1.85 
July 
3.08 
2.37 
2.80 
2.25 
2.22 
2.29 
1.64 
2.19 
August 
2.45 
2.18 
2.27 
1.99 
2.11 
2.38 
2.08 
2.69 
September 
2.35 
1.52 
1.78 
2.94 
1.96 
1.85 
1.79 
2.33 
October 
1.49 
0.83 
0.82 
1.62 
1.16 
0.93 
0.96 
1.43 
November 
1.12 
0.79 
1.13 
1.31 
0.98 
1.07 
1.04 
1.03 
December 
0.95 
0.59 
0.98 
1.02 
0.79 
0.83 
0.81 
0.66 
Annual Average 
21.19 
15.73 
17.92 
18.49 
15.44 
15.58 
13.76 
15.96 
Of the annual average precipitation of 15.96 inches at 
Churchill, 10.27 inches was in the form of rain, the remainder 
resulting in an annual average of 56.9 inches of snow. 
According to Cheney and Beckel (1955), the possible 
hours of sunshine for Fort Churchill during the winter months 
range from slightly over six hours in December to over twelve 
hours by the end of March. Cloud cover and haze normally reduce 
these lengths considerably. 
During a fifteen-year period of observation at Churchill, 
the average monthly maximum temperature for July, the warmest 
month, was 82 degrees Fahrenheit, and the average of the fifteen 
maximum temperatures (irrespective of the month in which they 
occurred) was 84 degrees. The highest temperature recorded was 
one for July of 96 degrees. The average monthly minimum temper- 
ature for January, the coldest month, was —40 degrees, and the 
average of the annual minimum temperatures (irrespective of 
month) was —42 degrees. The lowest temperature recorded was 
one for January of —57 degrees. 
L 
