Ecoregion/climatic information

Mean annual temperatures

Mean summer temperatures

Mean winter

Temperatures

Mean annual precipitation (mm)

Taiga (TA)

−10˚C to 0˚C

Cold subarctic

6˚C and 14˚C

−26˚C to −11˚C

200 to 500 to 1000

Hudson Plains (HP)

−7˚C to –2˚C.

Cold continental

11˚C to 14˚C

−19˚C to −16˚C

400 to 800

Northern Forests (NF)

−4˚C to 5.5˚C

Cold and moisture-laden

11˚C to 18˚C

−20.5˚C to −1˚C

400 to 1000

Northwestern Forested Mountains (FM)

−6˚C to 10˚C

Cold

10˚C to 21˚C

−23˚C to 0˚C

250 to 2600

Marine West Coast Forests (MF)

5˚C to 9˚C

Cold to moderate

10˚C to 16˚C

−1˚C to −3˚C.

600 to 5000

Eastern Temperate Forests (TF)

Warm and temperate

27˚C to 32˚C

−12˚C to 4˚C

1000 to 1500

Humid

Great Plains (GP)

-

Hot summers

Cold

Dry

North American Deserts (AD)

Seasonal temperature extremes

Reaching to 57

-

130 to 380

Dry

Mediterranean California (MC)

Hot Mediterranean

Hot

above 0˚C

200 to 1000

Dry