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Canada · 1991–2020

Best time to visit
Chilliwack.

July leads for comfortable weather in Chilliwack: typically 25.4°C by day, 12.8°C at night, with 44 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high25.4°C

Typical low12.8°C

Rain in July44 mm

Comfort

July

July · August · September

88climate match

Beach

July

July · August · September

62climate match

Outdoors

September

September · June · May

78climate match

The weakest month is January, scoring 5 against July’s 88 — days reach only 5.9°C, 18° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

55.9° / 0.2°

Feb

58.9° / 1.3°

Mar

511.4° / 2.8°

Apr

3115.3° / 5°

May

5519.3° / 8.2°

Jun

7121.6° / 11.1°

Jul

8825.4° / 12.8°

Aug

8525.5° / 12.3°

Sep

7322.3° / 9.4°

Oct

2415.1° / 6.4°

Nov

59.2° / 3°

Dec

55.5° / 0.4°

Monthly climate evidence for Chilliwack — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.9°C	0.2°C	238 mm	17.8	8 h 38	5	Good coverage
February	8.9°C	1.3°C	122 mm	14	10 h 03	5	Good coverage
March	11.4°C	2.8°C	179 mm	17.2	11 h 43	5	Good coverage
April	15.3°C	5°C	119 mm	14.5	13 h 38	31	Good coverage
May	19.3°C	8.2°C	96 mm	12.3	15 h 16	55	Good coverage
June	21.6°C	11.1°C	80 mm	11.4	16 h 12	71	Good coverage
July	25.4°C	12.8°C	44 mm	6	15 h 50	88	Good coverage
August	25.5°C	12.3°C	55 mm	5.7	14 h 24	85	Good coverage
September	22.3°C	9.4°C	80 mm	8.4	12 h 32	73	Good coverage
October	15.1°C	6.4°C	181 mm	15	10 h 41	24	Good coverage
November	9.2°C	3°C	258 mm	18.8	9 h 03	5	Good coverage
December	5.5°C	0.4°C	201 mm	17.7	8 h 13	5	Good coverage

Records at CHILLIWACK, 1881–2014
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.3°C9 Jan 1953	-20.6°C14 Jan 1911	120 mm4 Jan 1914	545 mm1953 · driest 68 mm in 1929	92
February	20.6°C27 Feb 1968	-16.7°C15 Feb 1956	122 mm26 Feb 1932	410 mm1951 · driest 5 mm in 1993	93
March	24.5°C28 Mar 1994	-14.4°C4 Mar 1955	114 mm31 Mar 1959	366 mm1972 · driest 29 mm in 1912	90
April	32.2°C29 Apr 1900	-6.1°C20 Apr 1927	87 mm29 Apr 1959	283 mm1959 · driest 25 mm in 2004	96
May	34.5°C12 May 1993	-1.7°C13 May 1920	84 mm1 May 1956	218 mm1955 · driest 20 mm in 1992	96
June	36.7°C8 Jun 1903	1.1°C19 Jun 1911	70 mm1 Jun 1968	268 mm1981 · driest 13 mm in 1965	97
July	38.2°C29 Jul 2009	3.3°C23 Jul 1917	65 mm8 Jul 1997	127 mm1972 · driest 0 mm in 1960	96
August	38.0°C28 Aug 2009	2.8°C28 Aug 1912	64 mm20 Aug 2008	220 mm2008 · driest 0 mm in 1930	96
September	36.5°C3 Sep 1988	-2.8°C25 Sep 1908	86 mm23 Sep 1903	267 mm1920 · driest 2 mm in 1987	95
October	27.8°C6 Oct 1952	-7.2°C27 Oct 1919	171 mm26 Oct 2009	417 mm2009 · driest 6 mm in 1987	95
November	21.1°C1 Nov 1954	-14.4°C14 Nov 1955	116 mm2 Nov 1955	521 mm2006 · driest 50 mm in 1952	94
December	19.0°C27 Dec 1980	-21.7°C29 Dec 1968	123 mm13 Dec 1979	586 mm1979 · driest 16 mm in 1906	92

Typical days per month at CHILLIWACK, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	13	8	5
February	0	0	10	4	3
March	0	0	6	6	2
April	<1	0	2	4	<1
May	5	<1	<1	3	0
June	8	2	0	3	0
July	18	5	0	1	0
August	18	5	0	2	0
September	9	1	0	2	0
October	<1	0	<1	6	0
November	0	0	7	8	2
December	0	0	13	8	6

How often, not how much — every day in CHILLIWACK’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	0%	57%	26%	74%	1.0–7.9°C
February	0%	51%	19%	67%	4.2–10.0°C
March	2%	51%	18%	70%	8.3–13.2°C
April	14%	44%	12%	62%	12.9–17.3°C
May	34%	38%	10%	51%	16.4–21.4°C
June	50%	34%	8%	43%	19.2–24.0°C
July	76%	19%	4%	18%	22.5–26.5°C
August	75%	20%	6%	25%	21.9–26.6°C
September	51%	30%	11%	40%	18.3–23.7°C
October	11%	45%	20%	64%	12.9–16.8°C
November	<1%	60%	27%	80%	6.7–10.8°C
December	0%	59%	27%	78%	2.4–8.0°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1896Each stripe is one year’s mean temperature against the 81-year average. Warmest: 1958. Coolest: 1916.2012

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5921356
NOAA station: CA001101530 · CHILLIWACK
Station distance: 2.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 49.17°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from CHILLIWACK is what differs

Chilliwack-Downtown→Sardis→Fairfield Island→Eastern Hillsides→Chilliwack Mountain→Little Mountain→

Or put two places side by side: Chilliwack vs Chilliwack-Downtown

Best time to visitChilliwack.

July

July

September

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Chilliwack.

The whole year,
without the guesswork.

Nearby, measured,
and named.