-30 -20 -10 0 10 20 30 Temperature ( ˚ C) 1 D DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV J F M A M J J A S O N 10 100 1000 Precipitation (mm) 20 30 40 50 0 50 0 50 0 50 0 50 0 50 0 50 0 50 0 50 Maximum Temperature ( ˚ C) 0 10 20 30 40 Temperature of Warmest Month ( ˚ C) -75 -60 -45 -30 -15 0 Minimum Temperature ( ˚ C) -30 -20 -10 0 10 20 Temperature of Coldest Month ( ˚ C) -20 -10 0 10 20 Annual Temperature ( ˚ C) 0 1 2 3 4 5 6 7 Growing Degree Days on 5 ˚ C Base X 1000 10 100 1000 10000 Annual Precipitation (mm) 0.0 0.2 0.4 0.6 0.8 1.0 Actual Evaporation/Potential Evaporation Percent of Total Number of Occurrences of Taxon Precipitation (mm) 10 1 1 1 100 1000 10 100 1000 10 100 1000 1 10 100 1000 Temperature ( ˚ C) -30 -10 10 30 0 -30 -10 10 30 0 -30 -10 10 30 0 0 10 20 30 40 10 100 1000 10000 July Temperature ( ˚ C) Distribution data for Canada and United States only Annual Precipitation (mm) 0 10 20 30 40 -30 -20 -10 0 10 20 July Temperature ( ˚ C) January Temperature ( ˚ C) 1 10 100 1000 1 10 100 1000 July Precipitation (mm) January Precipitation (mm) 0 2 4 6 Moisture Index AE/PE: 0.85-1.0 WET 0 2 4 6 Moisture Index AE/PE: 0.73-0.85 0 2 4 6 Moisture Index AE/PE: 0.55-0.73 -30 -10 10 -20 0 20 30 0 2 4 6 Temperature of Coldest Month ( ˚ C) Growing Degree Days on 5 ˚ C Base X 1000 Moisture Index AE/PE: < 0.55 DRY Ann absent present Jan 40 -30 -20 -10 0 10 20 30 Jul Temperature ( ˚ C) Ann Jan 1 10 100 1000 10000 Jul Precipitation (mm) 40 -30 -20 -10 0 10 20 30 0 2 3 1 4 5 6 7 Growing Degree Days on 5 ˚ C Base X 1000 0.0 0.2 0.4 0.6 0.8 1.0 USGS Professional Paper 1650–G Actual Evaporation/Potential Evaporation Month max 5% 25% median 75% 95% min Primary source(s): Table 2 lists taxa in group Temperature of Coldest Month ( ˚ C) CARYA Number of grid points: 4554 Number of taxa in group: 11