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Canada · 1991–2020

Best time to visit
Grandview.

July leads for comfortable weather in Grandview: typically 22.2°C by day, 13.6°C at night, with 29 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high22.2°C

Typical low13.6°C

Rain in July29 mm

Comfort

July

July · August · June

90climate match

Beach

July

July · August · June

58climate match

Outdoors

June

June · August · July

89climate match

The weakest month is January, scoring 5 against July’s 90 — days reach only 7.8°C, 16° 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

57.8° / 2.4°

Feb

109° / 2.4°

Mar

1311.2° / 4.1°

Apr

3714.1° / 6.2°

May

5717.4° / 9.2°

Jun

7519.7° / 11.8°

Jul

9022.2° / 13.6°

Aug

9022.2° / 13.6°

Sep

6919.5° / 11.2°

Oct

3314.5° / 7.5°

Nov

510.3° / 4.3°

Dec

57.3° / 2°

Monthly climate evidence for Grandview — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 22 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	7.8°C	2.4°C	175 mm	17.2	7.4°C	8 h 39	5	Good coverage
February	9°C	2.4°C	99 mm	12.9	7.4°C	10 h 04	10	Good coverage
March	11.2°C	4.1°C	128 mm	16.1	8.0°C	11 h 43	13	Strong coverage
April	14.1°C	6.2°C	79 mm	11.8	9.4°C	13 h 38	37	Strong coverage
May	17.4°C	9.2°C	68 mm	9.7	11.5°C	15 h 16	57	Strong coverage
June	19.7°C	11.8°C	44 mm	7.8	13.6°C	16 h 11	75	Strong coverage
July	22.2°C	13.6°C	29 mm	4.4	15.1°C	15 h 49	90	Strong coverage
August	22.2°C	13.6°C	28 mm	4.2	15.5°C	14 h 23	90	Strong coverage
September	19.5°C	11.2°C	67 mm	8	13.8°C	12 h 32	69	Strong coverage
October	14.5°C	7.5°C	130 mm	13	11.1°C	10 h 42	33	Strong coverage
November	10.3°C	4.3°C	173 mm	16.8	9.2°C	9 h 04	5	Strong coverage
December	7.3°C	2°C	166 mm	17.4	8.0°C	8 h 14	5	Good coverage

Records at WHITE ROCK CAMPBELL SCIENTIFIC, 1929–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.2°C28 Jan 1931	-17.2°C14 Jan 1950	97 mm21 Jan 1935	403 mm1935 · driest 24 mm in 1949	74
February	18.3°C29 Feb 1968	-15.6°C7 Feb 1936	53 mm21 Feb 2002	223 mm1961 · driest 26 mm in 2014	75
March	25.8°C29 Mar 2004	-11.7°C4 Mar 1955	75 mm11 Mar 2007	257 mm2007 · driest 20 mm in 1970	75
April	27.4°C30 Apr 1998	-3.3°C20 Apr 1951	42 mm23 Apr 1996	178 mm1996 · driest 11 mm in 1933	75
May	30.7°C13 May 2023	-1.7°C1 May 1954	83 mm4 May 2014	169 mm2014 · driest 5 mm in 2015	74
June	38.5°C28 Jun 2021	1.7°C23 Jun 1945	69 mm8 Jun 1999	137 mm1931 · driest 7 mm in 1940	73
July	36.2°C11 Jul 2007	3.3°C22 Jul 1968	46 mm8 Jul 1997	111 mm1932 · driest 0 mm in 2021	73
August	37.0°C12 Aug 2021	3.9°C28 Aug 1969	47 mm26 Aug 1968	123 mm1960 · driest 1 mm in 2002	72
September	31.7°C14 Sep 1937	0.0°C24 Sep 1934	51 mm17 Sep 2021	162 mm2010 · driest 2 mm in 2022	72
October	28.9°C3 Oct 1932	-5.6°C30 Oct 1935	119 mm16 Oct 2003	296 mm1967 · driest 22 mm in 2002	72
November	20.6°C3 Nov 2010	-13.9°C12 Nov 1955	84 mm2 Nov 1955	433 mm2021 · driest 20 mm in 1952	73
December	17.3°C10 Dec 2014	-20.0°C29 Dec 1968	65 mm3 Dec 2007	287 mm1963 · driest 0 mm in 2017	72

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

How often, not how much — every day in WHITE ROCK CAMPBELL SCIENTIFIC’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%	53%	17%	72%	3.0–9.1°C
February	0%	47%	13%	61%	6.3–10.9°C
March	<1%	45%	11%	60%	8.9–12.7°C
April	5%	37%	7%	49%	11.9–15.9°C
May	20%	27%	5%	31%	15.3–19.4°C
June	40%	24%	4%	26%	17.4–22.0°C
July	70%	14%	3%	11%	20.0–23.9°C
August	70%	16%	3%	15%	19.5–23.9°C
September	36%	24%	7%	30%	17.6–20.9°C
October	4%	41%	14%	60%	13.2–16.1°C
November	<1%	53%	18%	73%	8.4–11.7°C
December	0%	58%	18%	77%	4.8–9.0°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.

1929Each stripe is one year’s mean temperature against the 67-year average. Warmest: 2015. Coolest: 1955.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5964718
NOAA station: CA001108910 · WHITE ROCK CAMPBELL SCIENTIFIC
Station distance: 5.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 49.05°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 22 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 WHITE ROCK CAMPBELL SCIENTIFIC is what differs

White Rock→Sunnyside→

Or put two places side by side: Grandview vs White Rock

Best time to visitGrandview.

July

July

June

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Grandview.

The whole year,
without the guesswork.

Nearby, measured,
and named.