Climate in Macpherson-Grizzly Valley · ECCC 1991–2020 normals

Macpherson-Grizzly Valley sits near the top of Canadian towns for frosts

July afternoons average 22.3°C. By precipitation alone, it ranks drier than almost every Canadian town. The year is lopsided: July gets about 12 times what April does. About 77 days a year bring 1 mm of precipitation or more.

July afternoons: cooler than 97% of Canadian towns

January nights: colder than almost every Canadian town

Rain and snow a year: drier than almost every Canadian town

Measured at Mayo Road, 6.8 km east: ECCC’s normals for 1991–2020.

July high

22.3°C

Typical Canadian town 25.5°C

January low

−23.0°C

Typical Canadian town −13.5°C

Rain & snow a year

322 mm

Typical Canadian town 883 mm

Snowfall a year

107 cm

Typical Canadian town 141 cm

Frost days

240

a year at 0°C or below

A year in Macpherson-Grizzly Valley at a glance

Each month’s typical high and low, in °C.

Jan−12°C−23°CColdest nightsSnowiest

Feb−6°C−19°C

Mar−1°C−16°C

Apr9°C−6°C

May16°C0°C

Jun22°C5°C

Jul22°C7°CWarmestWettest

Aug20°C6°C

Sep13°C1°C

Oct5°C−4°C

Nov now−6°C−14°C

Dec−11°C−20°C

What stands out about Macpherson-Grizzly Valley’s climate

Compared with Canadian towns, with its place among towns of 2,500+ in Yukon beside it.

Drier than almost every Canadian townAbout 322 mm of rain and melted snow a year; July is the wettest month and April the driest.Colder than almost every Canadian townJanuary nights average −23.0°C, the coldest of the year.Cooler than 97% of Canadian townsJuly afternoons average 22.3°C, the warmest of the year.

A normal year

What a year in Macpherson-Grizzly Valley feels like

Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.

Winter

−10°C / −21°C

55 mm, with 55 cm of snow

Spring

8°C / −7°C

39 mm, with 18 cm of snow

Summer

21°C / 6°C

146 mm of rain and snow, the wettest season

Autumn

4°C / −6°C

83 mm, with 34 cm of snow

−30°

−20°

−10°

0°

10°

20°

30°

−12°C−23°C

−6°C−19°C

−1°C−16°C

9°C−6°C

16°C0°C

22°C5°C

22°C7°C

20°C6°C

13°C1°C

5°C−4°C

−6°C−14°C

−11°C−20°C

JanFebMarAprMayJunJulAugSepOctNovDec

Best months to be outsideNo month has highs of 17°C or more with nights of 8°C or more: summers here are cool.

Frost & warm days

240 frost days and 61 days above 20°C a year

The frost season runs August to June, and January freezes nearly every night. On about 63 nights a year the air falls below −20°C.

240

Frost days a year (0°C or below)

More frosts than almost every Canadian town

119

Days that stay below 0°C

Nights a year below −20°C

Days a year above 20°C

Days a year above 30°C

Frost days by month

Average days at 0°C or below

JFMAMJJASOND

Days above 20°C by month

Average days

JFMAMJJASOND

Rain & snow

Rain and melted snow: about 322 mm a year

322 mm

Rain and snow a year

Drier than almost every Canadian town

216 mm

Of it as rain alone (67%)

52 mm

July, the wettest month

4 mm

April, the driest month

Rain and snow by month

Millimetres

52 mm

JFMAMJJASOND

Rain alone by month

Millimetres

52 mm

JFMAMJJASOND

Snow

Snowfall: about 107 cm in a normal year

The snow season runs September to May; January brings the most, about 24 cm.

107 cm

Snowfall a year

Less snowy than 88% of Canadian towns

Days a year with 0.2 cm of snow or more

Snowfall by month

Centimetres

24 cm

JFMAMJJASOND

Living here

Living with Macpherson-Grizzly Valley’s climate

Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.

Get outside

Summer nights stay cool here: no month pairs 17–27°C afternoons with 8°C nights.

Parks & trails →

Storms and extremes

Storms, floods and heat waves sit outside these normals; Macpherson-Grizzly Valley’s hazards page covers them.

Flood & hazards →

Weather station

ECCC’s normals location: Mayo Road

The page’s figures are ECCC’s 1991–2020 normals for Mayo Road, one of its 450 normals locations.

Distance from the town	6.8 km east
Station altitude	655 m
Completeness	at least 20 years
WMO standard normals	No
Coldest reading, 1991–2020	−51.0°C
Hottest reading, 1991–2020	36.5°C
Next-nearest location	Takhini River Ranch, 17 km

Compared with other towns

How Macpherson-Grizzly Valley compares

Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Yukon.

July afternoons22.3°C

Macpherson-Grizzly ValleyMedian Canadian town

20°C22°C24°C26°C

Cooler than 97% of Canadian towns

January nights−23.0°C

Macpherson-Grizzly ValleyMedian Canadian town

−25°C−20°C−15°C−10°C

Colder than almost every Canadian town

Rain and snow a year322 mm

Macpherson-Grizzly ValleyMedian Canadian town

05001,0001,500

Drier than almost every Canadian town

Snowfall a year107 cm

Macpherson-Grizzly ValleyMedian Canadian town

0100200300

Less snowy than 88% of Canadian towns

Next door

Nearby towns’ climate

Nearby places read from a different ECCC location (places on Macpherson-Grizzly Valley’s own would show the same figures). No closer place has figures: this one lies 21 km from Macpherson-Grizzly Valley.

Town	July high	January low	Rain & snow
Macpherson-Grizzly Valley Mayo Road	22.3°C	−23.0°C	322 mm
Whitehorse 21 km · Whitehorse	20.5°C 1.8°C cooler	−18.9°C 4.1°C milder	280 mm

Month by month

Macpherson-Grizzly Valley weather by month

Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the snowfall.

Month	High	Low	Mean	Rain & snow	Snow
January	−11.9°C	−23.0°C	−17.1°C	24 mm	24 cm
February	−6.2°C	−18.6°C	−12.4°C	13 mm	13 cm
March	−0.6°C	−15.9°C	−8.3°C	12 mm	12 cm
April	9.1°C	−6.0°C	1.6°C	4 mm	4 cm
May	16.3°C	−0.2°C	8.1°C	23 mm	2 cm
June	21.5°C	4.9°C	13.2°C	42 mm	0 cm
July	22.3°C	7.3°C	14.9°C	52 mm	0 cm
August	20.0°C	5.5°C	12.8°C	51 mm	0 cm
September	13.2°C	1.0°C	7.1°C	36 mm	3 cm
October	4.6°C	−4.3°C	0.1°C	27 mm	12 cm
November	−6.0°C	−14.1°C	−10.1°C	20 mm	19 cm
December	−10.5°C	−20.4°C	−15.5°C	18 mm	18 cm
Year	6.0°C	−7.0°C	−0.5°C	322 mm	107 cm

Year to year

A December here can run warm or cold, its average moving by about 4.9°C; the steadiest month is July

Bars run from each month’s record low to its record high since 1991. March spans the most, from −43.5°C (2007) to 17.5°C (2016).

−60°

−50°

−40°

−30°

−20°

−10°

0°

10°

20°

30°

40°

JanFebMarAprMayJunJulAugSepOctNovDec

Record low to record high, 1991–2020Normal

Sources

Where Macpherson-Grizzly Valley’s numbers come from

Averages over 30 years, not a forecast.

Normals: the 1991–2020 normals from ECCC for Mayo Road, its nearest location with complete temperatures.
Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
Not on this page: sunshine, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.

Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada

Questions about Macpherson-Grizzly Valley’s climate

How warm does Macpherson-Grizzly Valley get in summer?

The warmest month is July, when afternoons average 22.3°C.

How cold does Macpherson-Grizzly Valley get in winter?

At its coldest, in January, the normal low is −23.0°C.

How much rain and snow does Macpherson-Grizzly Valley get?

Count on roughly 322 mm a year, heaviest in July (52 mm) and lightest in April (4 mm).

Are these figures for Macpherson-Grizzly Valley itself?

Yes. Mayo Road, where ECCC’s 1991–2020 normals were measured, lies within Macpherson-Grizzly Valley.

Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Macpherson-Grizzly Valley →

Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).