Weather in Regional District of Okanagan-Similkameen

Calculated from weather data of Penticton Airport (CYYF) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	2.0	1.0	3.5	0.4	4.4	2.7
February	3.5	6.5	4.2	5.0	3.2	6.4
March	10.0	10.9	9.5	11.4	12.4	10.1
April	15.2		14.5	13.5	17.6	15.6
May	22.6		25.0	18.6	22.3	21.3
June	25.9		27.8	23.6	29.5	23.1
July	30.8		31.8	31.3	33.6	28.8
August	29.9		29.8	31.6	29.5	29.6
September	23.1		23.8	24.8	22.8	24.6
October	14.6		15.4	18.1	14.4	14.0
November	6.4		7.4	2.0	7.9	7.2
December	2.0		5.0	-3.5	0.2	3.6
Average	14.4	6.1	16.5	15.5	16.5	15.6

10th highest temperature of Canada

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	-3.6	-4	-1	-3	-1	-1
February	-4.4	-1	-2	-3	-3	-1
March	-1.3	0	-2	2	0	-1
April	2.5		2	1	3	2
May	8.2		11	6	7	8
June	11.3		12	11	13	10
July	14.4		15	14	17	14
August	14.0		15	15	15	14
September	10.0		11	10	10	11
October	4.2		4	6	5	5
November	0.6		1	-3	2	2
December	-3.6		1	-6	-6	-2
Average	4.0	-2.5	5.6	4.6	5.0	4.8

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
30 °C or warmer	0	48	47	53	23
25 °C or warmer	0	114	74	89	74
20 °C or warmer	0	144	139	142	139
0 °C or colder	38	84	103	96	79

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	20.9	28	19	14	24	32
February	15.1	22	12	7	15	11
March	9.5	12	10	7	2	7
April	9.9		9	12	6	3
May	8.0		11	11	4	13
June	7.1		5	15	5	12
July	2.0		1	2	1	5
August	1.9		4	1	3	2
September	6.1		9	3	5	3
October	5.7		3	1	14	7
November	12.5		6	21	15	9
December	20.5		19	31	32	17
Average	10.5	20.4	8.5	9.3	9.2	9.3

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month	Average	2024	2023	2022	2021	2020
January	16.7	16	14	21	18	18
February	16.0	12	17	19	18	14
March	14.8	15	13	15	16	17
April	13.7		16	13	13	15
May	11.6		12	11	12	12
June	11.4		12	11	12	11
July	11.7		12	12	12	11
August	11.8		13	12	11	12
September	12.1		13	11	13	14
October	15.5		13	15	16	14
November	17.7		16	17	20	21
December	17.5		18	20	16	15
Average	14.0	14.2	13.8	14.0	14.4	14.1

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	S	S	S	S	S
February	N	S	S	S	S
March	S	S	S	S	W
April		S	S	N	N
May		N	SW	N	N
June		N	N	N	N
July		N	N	N	N
August		N	N	N	N
September		N	N	S	N
October		NW	S	S	S
November		S	S	S	S
December		S	N	S	S

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Regional District of Okanagan-Similkameen weather Q&A

What is the warmest month in Regional District of Okanagan-Similkameen?

The warmest month is July with an average temperature of 31 °C over the past years.

What is the coldest month in Regional District of Okanagan-Similkameen?

The coldest month is January with an average daytime temperature of 2 °C in the past few years.

Which month is the wettest in Regional District of Okanagan-Similkameen?

Chance of precipitation is the highest in January with a probability of around 21.0 %.

Which month is the driest in Regional District of Okanagan-Similkameen?

The least rainfall and snow can be expected in August. The probability is about 2.0 %.