Average data for 10 years
1 December
Sunday
+5°
+3°
2 December
Monday
+6°
+4°
3 December
Tuesday
+6°
+3°
4 December
Wednesday
+7°
+5°
5 December
Thursday
+2°
+2°
6 December
Friday
+1°
0°
7 December
Saturday
+2°
0°
8 December
Sunday
+3°
+1°
9 December
Monday
+1°
0°
10 December
Tuesday
+1°
+1°
11 December
Wednesday
+1°
−1°
12 December
Thursday
+1°
−1°
13 December
Friday
+2°
−1°
14 December
Saturday
+2°
+1°
15 December
Sunday
+1°
0°
16 December
Monday
0°
−1°
17 December
Tuesday
+1°
−1°
18 December
Wednesday
+1°
0°
19 December
Thursday
+1°
−1°
20 December
Friday
+2°
0°
21 December
Saturday
+1°
+1°
22 December
Sunday
+2°
0°
23 December
Monday
+2°
0°
24 December
Tuesday
+2°
0°
25 December
Wednesday
+1°
+1°
26 December
Thursday
+2°
−1°
27 December
Friday
0°
0°
28 December
Saturday
+1°
−1°
29 December
Sunday
0°
−2°
30 December
Monday
+3°
−1°
31 December
Tuesday
+3°
−1°
Cities near you
Canada
Toronto
United States
Cleveland
United States
Detroit
United States
Macedonia
United States
Buffalo
Cities with similar weather in December
Finland
Helsinki
Latvia
Riga
Estonia
Tallinn
Sweden
Stockholm
Iceland
Reykyavik
In December, the weather in St Catharines is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, St Catharines has 15 rainy, 12 cloudy, 2 snowy, and 2 sunny days in December. The rains are usually moderate. December as well as March, April, October, and November is considered the most uncomfortable time to visit St Catharines.