Probe 1 40 S Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 26.8 Precip 27.1 MAT(F) 59.8 Probe 2 6 S Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 69.2 Precip 124.6 MAT(F) 77.9 Probe 3 57 S Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 21.5 Precip 38.7 MAT(F) 43.5 Probe 4 38 N Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 30.3 Precip 16.5 MAT(F) 53.6 Probe 5 55 N Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 21.3 Precip 28.1 MAT(F) 40.6 Probe 6 43 N Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 25.4 Precip 14.4 MAT(F) 47.2 Probe 7 42 N Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 17.3 Precip 31.2 MAT(F) 26.0 Probe 8 42 N Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 29.6 Precip 38.8 MAT(F) 51.6 Probe 9 18 S Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 66.1 Precip 74.8 MAT(F) 77.7 Probe 10 58 N Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 16.5 Precip 24.8 MAT(F) 36.9 Probe 11 26 N Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 47.6 Precip 3.8 MAT(F) 70.1 Probe 12 29 N Precipitation in inches Temperature in F J F M A M J J A S O N D 2 4 6 8 10 12 0 10 20 30 40 50 60 70 80 90 POTET 44.0 Precip 47.3 MAT(F) 63.2 Probe 4 Probe 2 Probe 10 Probe 5 Probe 6 Probe 7 Probe 11 Probe 12 Probe 8 Probe 9 Probe 3 Probe 1 Map 1 20 N 40 N 60 N 80 N 0 20 S 40 S 60 S 0 1000 miles Geography 204 Koppen Climate Classification Guidelines If POTET exceeds Precip then B BW = POTET more than 2x Precip (desert) h = mean annual temp > 18 C (64.4 F) k = mean annual temp < 18 C (64.4 F) BS = POTET less than 2x Precip (steppe) h = mean annual t.

1. Probe 1
40 S
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90

2. POTET 26.8
Precip 27.1
MAT(F) 59.8
Probe 2
6 S
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10

3. 20
30
40
50
60
70
80
90
POTET 69.2
Precip 124.6

4. MAT(F) 77.9
Probe 3
57 S
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90

5. POTET 21.5
Precip 38.7
MAT(F) 43.5
Probe 4
38 N
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30

6. 40
50
60
70
80
90
POTET 30.3
Precip 16.5
MAT(F) 53.6

7. Probe 5
55 N
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90

8. POTET 21.3
Precip 28.1
MAT(F) 40.6
Probe 6
43 N
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30
40
50
60

9. 70
80
90
POTET 25.4
Precip 14.4
MAT(F) 47.2
Probe 7

10. 42 N
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90

11. POTET 17.3
Precip 31.2
MAT(F) 26.0
Probe 8
42 N
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80

12. 90
POTET 29.6
Precip 38.8
MAT(F) 51.6
Probe 9
18 S
Precipitation in inches

13. Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90

14. POTET 66.1
Precip 74.8
MAT(F) 77.7
Probe 10
58 N
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90

15. POTET 16.5
Precip 24.8
MAT(F) 36.9
Probe 11
26 N
Precipitation in inches
Temperature in F
J F M A M J J A S O N D

16. 2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90

17. POTET 47.6
Precip 3.8
MAT(F) 70.1
Probe 12
29 N
Precipitation in inches
Temperature in F
J F M A M J J A S O N D
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90

18. POTET 44.0
Precip 47.3
MAT(F) 63.2
Probe 4
Probe 2
Probe 10
Probe 5

19. Probe 6
Probe 7
Probe 11
Probe 12
Probe 8
Probe 9
Probe 3
Probe 1
Map 1
20 N
40 N
60 N
80 N
0
20 S
40 S
60 S

20. 0
1000
miles
Geography 204
Koppen Climate Classification Guidelines
If POTET exceeds Precip then B
BW = POTET more than 2x Precip
(desert)
h = mean annual temp > 18 C (64.4 F)
k = mean annual temp < 18 C (64.4 F)
BS = POTET less than 2x Precip
(steppe)
h = mean annual temp > 18 C (64.4 F)
k = mean annual temp < 18 C (64.4 F)
BWh, BSh – subtropical dry
BWk, BSk – mid-latitude dry
If Precip exceeds POTET then A, C, D or E
If consistently warm temperature profile, with all months
averaging above 18 C (64.4 F) then A
f = if each and every month Precip exceeds 6 cm (2.4 in)
m = if one or more months Precip less than 6 cm (2.4 in); and 6

21. or more months Precip of 12 cm (7.2 in). Long wet season.
w = if one or more months Precip less than 6 cm (2.4 in); and 5
or less months Precip of 12 cm (7.2 in). Short wet season.
Af – tropical wet
Am and Aw – tropical wet/dry
If warmest month above 10 C (50 F); and coldest month above 0
C (32 F) but below 18 C (64.4 F) then C
a = warmest month above 18 C (64.4 F) Hot summer.
f = each and every month Precip exceeds 3 cm (1.2 in). Year
round precipiation.
w = winter drought, wettest summer month 10 times more
Precip than driest winter month (if f met and w met consider
this a w). Winter drought.
Cfa, Cwa – Humid Subtropical
f = each and every month Precip exceeds 3 cm (1.2 in). Year
round precipiation.
b = warmest month below 22 C (71.6 F) and with 4 months
above 10 C (50 F)
c = warmest month below 22 C (71.6 F) and with 1 to 3 months
above 10 C (50 F)
Cfb, Cfc – Marine West Coast
s = Winter months account for 70% or more of annual Precip.
Summer drought.
a = warmest month above 18 C (64.4 F) Hot summer.
b = warmest month below 22 C (71.6 F) and with 4 months
above 10 C (50 F)

22. Csa, Csb – Dry Summer Subtropical
If warmest month above 10 C (50 F); and coldest month below 0
C (32 F) then D
a = warmest month above 22 C (71.6 F) Hot summer.
f = each and every month Precip exceeds 3 cm (1.2 in). Year
round precipiation.
w = winter drought, summer wettest month 10 times more
Precip than driest winter month (if f met and w met consider
this a w). Winter drought.
Dfa, Dwa – Humid Continental
f = each and every month Precip exceeds 3 cm (1.2 in). Year
round precipiation.
b = warmest month below 22 C (71.6 F) Mild summer.
w = winter drought, summer wettest month 10 times more
Precip than driest winter month (if f met and w met consider
this a w). Winter drought.
Dfb, Dwb – Humid Continental
f = each and every month Precip exceeds 3 cm (1.2 in). Year
round precipiation.
w = winter drought, summer wettest month 10 times more
Precip than driest winter month (if f met and w met consider
this a w). Winter drought.
c = 1 to 4 months above 10 C (50 F) Cool summer.
d = coldest month below -38 C (-36.4 F) Very cold winter.

23. Dfc, Dwc, Dwd – Subarctic
If warmest month below 10 C (50 F) then E
ET = warmest month 0-10 C (32-50 F). Precip exceeds small
POTET. Polar Tundra
EF = warmest month below 0 C (32 F). Precip exceeds very
small POTET. Polar Ice Cap
EM = all months above -7 C (20 F). Warmest month above 0 C
(32 F). Annual range in monthly temperatures below -17 C (30
F). Polar Marine