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Whistler vs Castries

Csb Warm-summer MediterraneanAf Tropical rainforest

Comparing Whistler change · Castries change

Bottom line

Castries is the warmer of the two — about 37°F on the annual average; Castries is the wetter, with 27 in more rain a year, and Castries the sunnier.

Warmer Castries 37°F on the year
Wetter Castries 27 in more a year
Sunnier Castries 20 pp less cloud
Colder winters Whistler 54°F colder nights

How the seasons compare

The differences between Whistler and Castries, in everyday terms.

Summers

Castries has much hotter summers

Whistler: Mild
Castries: Warm

Winters

Castries has far milder winters

Whistler: Cold
Castries: Stays warm

Rain & snow

Castries is wetter

Whistler: Wet
Castries: Very wet

Sky

Castries is sunnier

Whistler: Often cloudy
Castries: Fairly sunny

Month-by-month charts

Temperature

Castries is the warmer of the two — about 37°F on the annual average.

20°40°60°80° JanAprJulOct WhistlerCastries

Precipitation

Castries is the wetter — about 27 in more across the year.

PRECIPITATION (in) 0612 JanAprJulOct WhistlerCastries

Clear skies

Castries has the clearer skies — the higher line.

0%25%50%75%100% JanAprJulOct WhistlerCastries

Exact monthly numbers

Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.

Avg high (°F) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Whistler323744536368767667523932
Castries808080828383838484838381
Difference+48+42+36+28+19+15+7+8+17+32+44+49
Jan – JunJanFebMarAprMayJun
Whistler323744536368
Castries808080828383
Difference+48+42+36+28+19+15
Jul – DecJulAugSepOctNovDec
Whistler767667523932
Castries838484838381
Difference+7+8+17+32+44+49
Avg low (°F) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Whistler232528334046504943362924
Castries787778798081818282828179
Difference+55+53+50+46+40+35+31+32+39+45+51+56
Jan – JunJanFebMarAprMayJun
Whistler232528334046
Castries787778798081
Difference+55+53+50+46+40+35
Jul – DecJulAugSepOctNovDec
Whistler504943362924
Castries818282828179
Difference+31+32+39+45+51+56
Precipitation (in) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Whistler7.33.74.63.12.32.21.52.1368.16.5
Castries4.532.63.54.55.38.511.58.89.79.65.9
Difference-2.8-0.8-2+0.4+2.2+3+7+9.4+5.8+3.7+1.5-0.6
Jan – JunJanFebMarAprMayJun
Whistler7.33.74.63.12.32.2
Castries4.532.63.54.55.3
Difference-2.8-0.8-2+0.4+2.2+3
Jul – DecJulAugSepOctNovDec
Whistler1.52.1368.16.5
Castries8.511.58.89.79.65.9
Difference+7+9.4+5.8+3.7+1.5-0.6
Snowfall (in)
JanFebMarAprMayJunJulAugSepOctNovDec
Whistler4224.220.23.90.20000223.244.9
Castries
Difference
Jan – JunJanFebMarAprMayJun
Whistler4224.220.23.90.20
Castries
Difference
Jul – DecJulAugSepOctNovDec
Whistler000223.244.9
Castries
Difference
Cloud cover (%) Whistler runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Whistler716873727071565558697371
Castries383942495259504651514641
Difference-32-30-31-23-17-12-6-9-7-18-27-30
Jan – JunJanFebMarAprMayJun
Whistler716873727071
Castries383942495259
Difference-32-30-31-23-17-12
Jul – DecJulAugSepOctNovDec
Whistler565558697371
Castries504651514641
Difference-6-9-7-18-27-30
Relative humidity (%) Whistler runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Whistler969797958680777880889596
Castries767575767779797979797977
Difference-20-22-22-19-8-1+1+1-1-8-16-19
Jan – JunJanFebMarAprMayJun
Whistler969797958680
Castries767575767779
Difference-20-22-22-19-8-1
Jul – DecJulAugSepOctNovDec
Whistler777880889596
Castries797979797977
Difference+1+1-1-8-16-19

How both climates are changing

Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Whistler trends → · Castries trends →

Methodology & sources

Whistler

Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Whistler, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

Castries

Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Precipitation — 1991–2020 normals computed from 10 years of daily observations at LE Lamentin, a weather station, about 66 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →