Kitchener – Waterloo ON Average Temperatures by Month

The numbers here tell you how hot and cold the weather usually is in Kitchener and Waterloo, Ontario during each month of the year.

The average high and low temperatures are listed below monthly and annually for the cities, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 10, 20 or 30 °C each month in Kitchener – Waterloo, scroll down farther. There are also monthly and yearly counts of days with frost and cold weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1981 to 2010 weather.

10-year temperature averages for Kitchener – Waterloo, 2010 to 2019
High °F	Low °F		High °C	Low °C
28	13	January	-2	-11
29	12	February	-2	-11
39	22	March	4	-6
52	31	April	11	-1
68	45	May	20	7
75	52	June	24	11
82	57	July	28	14
79	55	August	26	13
72	48	September	22	9
58	39	October	15	4
44	28	November	7	-2
34	22	December	1	-6
55	35	Year	13	2

30-year temperature averages for Kitchener – Waterloo, 1981 to 2010
High °F	Low °F		High °C	Low °C
27	13	January	-3	-10
30	15	February	-1	-10
38	22	March	4	-6
53	33	April	11	1
65	44	May	18	6
74	53	June	24	12
79	57	July	26	14
77	55	August	25	13
69	48	September	20	9
56	37	October	14	3
43	30	November	6	-1
32	20	December	0	-7
54	36	Year	12	2

Days of Hot Weather in Kitchener – Waterloo

The Kitchener – Waterloo region normally has eight days a year with temperatures in the low 30s Celsius. Just once every three years, a day heats up above 35 degrees Celsius (95 °F). The 30-degree weather typically shows up here during June, July and August, and occasionally in May or September.

Days per month in Kitchener – Waterloo over 10, 20 or 30 °C
	10 °C 50 °F	20 °C 68 °F	30 °C 86 °F
January	0	0	0
February	1	0	0
March	5	0	0
April	17	3	0
May	29	12	0
June	30	23	2
July	31	30	4
August	31	28	2
September	30	16	0
October	23	4	0
November	7	0	0
December	2	0	0
Year	205	116	8

When Kitchener – Waterloo Has Frosty Weather

Kitchener – Waterloo typically has 158 days a year when the minimum temperature is at 0 °C or below. The average date for the last frost in spring is May 6. Frost normally returns here on October 2. The frost-free period extends for 147 days on average between the final spring frost and the first fall frost.

Average number of days with freezing temperatures in Kitchener – Waterloo
	0 °C 32 °F
January	30
February	26
March	27
April	15
May	2
June	0
July	0
August	0
September	1
October	9
November	20
December	28
Year	158

How Often Kitchener – Waterloo Has Cold Temperatures

The chilliest winter nights at Kitchener – Waterloo have lows in the minus-twenties Celsius. The region averages six nights a year, most often in January, when the thermometer drops that low. The temperature can get down to -30 °C (-22 °F), but weather that cold is extremely rare here.

From November to April, it can remain below freezing here all day long. Kitchener – Waterloo typically has 64 frosty days a year.

Days per month on average in Kitchener – Waterloo when the minimum temperature drops below -2, -10, or -20 °C
	-2 °C 28 °F	-10 °C 14 °F	-20 °C -4 °F
January	27	15	3
February	24	13	2
March	22	7	0
April	8	0	0
May	0	0	0
June	0	0	0
July	0	0	0
August	0	0	0
September	0	0	0
October	4	0	0
November	13	1	0
December	23	9	1
Year	121	45	6

Kitchener – Waterloo Temperatures: Averages by Month

Days of Hot Weather in Kitchener – Waterloo

When Kitchener – Waterloo Has Frosty Weather

How Often Kitchener – Waterloo Has Cold Temperatures

References

More on Weather in Ontario