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Québec vs Castries

Dfb Warm-summer humid continentalAf Tropical rainforest

Comparing Québec change · Castries change

Bottom line

Castries is the warmer of the two — about 22°C on the annual average; Castries is the wetter, with 824 mm more rain a year, and Castries the sunnier.

Warmer Castries 22°C on the year
Wetter Castries 824 mm more a year
Sunnier Castries 20 pp less cloud
Colder winters Québec 40°C colder nights

How the seasons compare

The differences between Québec and Castries, in everyday terms.

Summers

Castries has hotter summers

Québec: Mild
Castries: Warm

Winters

Castries has far milder winters

Québec: Bitterly cold
Castries: Stays warm

Rain & snow

Castries is wetter

Québec: Wet
Castries: Very wet

Sky

Castries is sunnier

Québec: Often cloudy
Castries: Fairly sunny

Month-by-month charts

Temperature

Castries is the warmer of the two — about 22°C on the annual average.

-20°20°40° JanAprJulOct QuébecCastries

Precipitation

Castries is the wetter — about 824 mm more across the year.

PRECIPITATION (mm) 0150300 JanAprJulOct QuébecCastries

Clear skies

Castries has the clearer skies — the higher line.

0%25%50%75%100% JanAprJulOct QuébecCastries

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 (°C) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Québec-7-4191722252420114-3
Castries272727282828282929292827
Difference+33+31+26+19+11+6+3+4+9+17+24+30
Jan – JunJanFebMarAprMayJun
Québec-7-4191722
Castries272727282828
Difference+33+31+26+19+11+6
Jul – DecJulAugSepOctNovDec
Québec252420114-3
Castries282929292827
Difference+3+4+9+17+24+30
Avg low (°C) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Québec-15-14-8-1711151493-3-10
Castries262525262727272828282726
Difference+41+39+34+27+20+16+12+14+18+24+30+36
Jan – JunJanFebMarAprMayJun
Québec-15-14-8-1711
Castries262525262727
Difference+41+39+34+27+20+16
Jul – DecJulAugSepOctNovDec
Québec151493-3-10
Castries272828282726
Difference+12+14+18+24+30+36
Precipitation (mm) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Québec717374989110810310910411887103
Castries113766690114134216291224246243149
Difference+42+3-8-8+23+26+113+183+120+129+156+47
Jan – JunJanFebMarAprMayJun
Québec7173749891108
Castries113766690114134
Difference+42+3-8-8+23+26
Jul – DecJulAugSepOctNovDec
Québec10310910411887103
Castries216291224246243149
Difference+113+183+120+129+156+47
Cloud cover (%) Québec runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Québec676563677067646262727471
Castries383942495259504651514641
Difference-29-26-22-18-17-8-15-15-12-20-28-31
Jan – JunJanFebMarAprMayJun
Québec676563677067
Castries383942495259
Difference-29-26-22-18-17-8
Jul – DecJulAugSepOctNovDec
Québec646262727471
Castries504651514641
Difference-15-15-12-20-28-31
Relative humidity (%) Québec runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Québec979694858081848484869096
Castries767575767779797979797977
Difference-22-22-19-9-3-3-5-5-5-7-11-19
Jan – JunJanFebMarAprMayJun
Québec979694858081
Castries767575767779
Difference-22-22-19-9-3-3
Jul – DecJulAugSepOctNovDec
Québec848484869096
Castries797979797977
Difference-5-5-5-7-11-19

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. Québec trends → · Castries trends →

Methodology & sources

Québec

Temperature & precipitation — 1991–2020 normals computed from 23 years of daily observations at Ste-foy (u. Laval), a weather station, about 7 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 →