Charlotte/ Douglas
North Carolina, United States Of America
35.22 ° N
80.93 ° W
768 ft
Warm temperate moist forest
Cfa Humid subtropical climate
+
Cfak Subtropical climate with evenly distributed precipitation with hot summer with cool winter
Traditional Koppen classification: Cfa (Humid subtropical climate)

Official definition:
  • C – temperature of warmest month greater than or equal to 10 °C and temperature of coldest month less than 18 °C, but higher than -3 °C
  • f – precipitation is relatively evenly distributed throughout the year and do not fulfill classification criteria for s or w type
  • a - temperature of warmest month above 22 °C

The Cfa climate type is typical for areas on the Eastern coasts of continents, mostly between 20th and 30th latitude. The average temperature of the warmest month is higher than 22 °C and the temperature throughout the year range from usually -3 to 18 °C. In the winter, however, in some cases it can be well below freezing point.

Precipitation is relatively evenly distributed during the entire year. Humidity tends to be higher during the summer half year, when the conditions resemble the humid tropical climate. The total annual rainfall can be quite variable, most commonly between 650 and 2500 mm. Thunderstorms during the summer are frequent.

Cfa climate type can be found for example in the Southeastern USA, Northern part of Argentina, Uruguay and Southern part of Brazil, Southern Japan and South of China.


Modern Trewartha classification: Cfak (Subtropical climate with evenly distributed precipitation with hot summer with cool winter)

Subtropical in the Koppen and Trewartha classification is defined as a region, where at least eight months has an average temperature of more than 10 °C, but the coldest month has an average temperature of less than 18 °C. The individual subtypes then differ in their annual precipitation distribution. In Trewartha classification there is a condition of maximum annual precipitation of 900 mm.

In general the subtropical climate is usually found in areas polewards from the tropical zones. It can also be found inside tropical zones at places with higher altitude. Typical are for example citrus trees or palm trees.

The Cf subtype is characterized by precipitation evenly distributed throughout the year.

It can be found for example in Eastern part of South America, in large areas in Southeast U.S., Northern Italy, the Southwest tip of Russia, in Southeast Asia, some parts of Japan or East coast of Australia.

  • hot summer: warmest month with average temperature between 23 and 28 °C
  • cool winter: coldest month with average temperature between 0 and 10 °C

Summary

60 °F
50 / 70

43.1 in


Temperature
+

Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Min Temperature(°F) 30.032.039.047.056.066.070.069.063.051.042.033.0 50.0
Avg Temperature(°F) 39.042.051.059.067.076.079.078.072.061.052.043.0 60.0
Max Temperature (°F) 49.053.062.071.078.086.089.088.082.072.063.052.0 70.0
Range 19.021.023.024.022.020.019.019.019.021.021.019.0 20.0


Max month Min month Annual range
Min Temperature Jul Jan 40.0°F
Avg Temperature Jul Jan 40.0°F
Max Temperature Jul Jan 40.0°F
Temperature range Apr Jan, Jul, Aug, Sep, Dec 59.0°F
Average
1 2 3 4 5 6 7 8 9 10 11 12
Min Temperature(°F)
Avg Temperature(°F)
Max Temperature(°F)


Mar, Apr, May

Jun, Jul, Aug

Sep, Oct, Nov

Dec, Jan, Feb
Max Min Average Range Max Min Average Range Max Min Average Range Max Min Average Range
Min Temperature 56.0 39.0 47.33 17.0 70.0 66.0 68.33 4.0 63.0 42.0 52.00 21.0 33.0 30.0 31.67 3.0
Avg Temperature 67.0 51.0 59.00 16.0 79.0 76.0 77.67 3.0 72.0 52.0 61.67 20.0 43.0 39.0 41.33 4.0
Max Temperature 78.0 62.0 70.33 16.0 89.0 86.0 87.67 3.0 82.0 63.0 72.33 19.0 53.0 49.0 51.33 4.0

Temperature
+

Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Avg Temperature (°F) 39.042.051.059.067.076.079.078.072.061.052.043.0 60.0


Max month Min month Annual range
Avg Temperature Jul Jan 40.0°F
Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Avg Temperature (°F)


Mar, Apr, May

Jun, Jul, Aug

Sep, Oct, Nov

Dec, Jan, Feb
Max Min Average Range Max Min Average Range Max Min Average Range Max Min Average Range
Avg Temperature 67.0 51.0 59.00 16.0 79.0 76.0 77.67 3.0 72.0 52.0 61.67 20.0 43.0 39.0 41.33 4.0


Humidity
+

Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Avg Humidity (%) -9999.0-9999.0-9999.0-9999.0-9999.0-9999.0-9999.0-9999.0-9999.0-9999.0-9999.0-9999.0 60.0


Max month Min month Annual range
Avg Humidity 0, Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec 0, Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec 0.0%
Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Avg Humidity (%)


Mar, Apr, May

Jun, Jul, Aug

Sep, Oct, Nov

Dec, Jan, Feb
Max Min Average Range Max Min Average Range Max Min Average Range Max Min Average Range
Avg Humidity -9999.0 -9999.0 -9999.00 0.0 -9999.0 -9999.0 -9999.00 0.0 -9999.0 -9999.0 -9999.00 0.0 -9999.0 -9999.0 -9999.00 0.0


Precipitation
+

Month Monthly average Annual total
1 2 3 4 5 6 7 8 9 10 11 12
Average monthly precipitation (in) 3.73.94.52.73.83.43.93.73.53.43.23.5 3.6 43.1
Wetdays -9999-9999-9999-9999-9999-9999-9999-9999-9999-9999-9999-9999 -9999 -119988
Wetdays ratio (%) -32254.8
-9999,10030
-35710.7
-9999,10027
-32254.8
-9999,10030
-33330.0
-9999,10029
-32254.8
-9999,10030
-33330.0
-9999,10029
-32254.8
-9999,10030
-32254.8
-9999,10030
-33330.0
-9999,10029
-32254.8
-9999,10030
-33330.0
-9999,10029
-32254.8
-9999,10030
-32873.4
-32873.4,32973.4


Max month Min month Max Season Min Season Annual range
Average monthly precipitation Mar Apr Summer Autumn 1.8in
Wetdays 0, Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec 0, Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec Autumn Spring, Summer, Winter 0
Month
1 2 3 4 5 6 7 8 9 10 11 12
Average monthly precipitation (in)
Wetdays / month


Mar, Apr, May

Jun, Jul, Aug

Sep, Oct, Nov

Dec, Jan, Feb
Max Min Range Total Max Min Range Total Max Min Range Total Max Min Range Total
Average monthly precipitation (in) 4.5 2.7 1.8 11.0 3.9 3.4 0.6 11.1 3.5 3.2 0.3 10.1 3.9 3.5 0.4 11.0
Wetdays -9999 -9999 0 -29997 -9999 -9999 0 -29997 61 -9999 10060 -9886 -9999 -9999 0 -29997

Precipitation
+

Month Monthly average Annual total
1 2 3 4 5 6 7 8 9 10 11 12
Average monthly precipitation (in) 3.73.94.52.73.83.43.93.73.53.43.23.5 3.6 43.1


Max month Min month Max Season Min Season Annual range
Average monthly precipitation Mar Apr Summer Autumn 1.8in
Month
1 2 3 4 5 6 7 8 9 10 11 12
Average monthly precipitation (in)


Mar, Apr, May

Jun, Jul, Aug

Sep, Oct, Nov

Dec, Jan, Feb
Max Min Range Total Max Min Range Total Max Min Range Total Max Min Range Total
Average monthly precipitation (in) 4.5 2.7 1.8 11.0 3.9 3.4 0.6 11.1 3.5 3.2 0.3 10.1 3.9 3.5 0.4 11.0


Sunlight / Day length
+

Max day length Min day length Sunlight/Day length
Jan -9999 min
-167 h 21 min
605 min
10 h 5 min
605,835
627 min
10 h 27 min
(31.1.)
627,813
589 min
9 h 49 min
(1.1.)
589,851
-1651.5 %
-9999,10604
Feb -9999 min
-167 h 21 min
657 min
10 h 57 min
657,783
686 min
11 h 26 min
(29.2.)
686,754
629 min
10 h 29 min
(1.2.)
629,811
-1522.9 %
-9999,10656
Mar -9999 min
-167 h 21 min
721 min
12 h 1 min
721,719
755 min
12 h 35 min
(31.3.)
755,685
688 min
11 h 28 min
(1.3.)
688,752
-1386.2 %
-9999,10720
Apr -9999 min
-167 h 21 min
788 min
13 h 8 min
788,652
817 min
13 h 37 min
(30.4.)
817,623
757 min
12 h 37 min
(1.4.)
757,683
-1269.7 %
-9999,10787
May -9999 min
-167 h 21 min
843 min
14 h 3 min
843,597
862 min
14 h 22 min
(31.5.)
862,578
819 min
13 h 39 min
(1.5.)
819,621
-1186.8 %
-9999,10842
Jun -9999 min
-167 h 21 min
869 min
14 h 29 min
869,571
871 min
14 h 31 min
(19.6.)
871,569
863 min
14 h 23 min
(1.6.)
863,577
-1150.8 %
-9999,10868
Jul -9999 min
-167 h 21 min
853 min
14 h 13 min
853,587
868 min
14 h 28 min
(1.7.)
868,572
833 min
13 h 53 min
(31.7.)
833,607
-1171.9 %
-9999,10852
Aug -9999 min
-167 h 21 min
804 min
13 h 24 min
804,636
832 min
13 h 52 min
(1.8.)
832,608
773 min
12 h 53 min
(31.8.)
773,667
-1244.3 %
-9999,10803
Sep -9999 min
-167 h 21 min
740 min
12 h 20 min
740,700
771 min
12 h 51 min
(1.9.)
771,669
708 min
11 h 48 min
(30.9.)
708,732
-1351.4 %
-9999,10739
Oct -9999 min
-167 h 21 min
674 min
11 h 14 min
674,766
706 min
11 h 46 min
(1.10.)
706,734
643 min
10 h 43 min
(31.10.)
643,797
-1483.8 %
-9999,10673
Nov -9999 min
-167 h 21 min
617 min
10 h 17 min
617,823
641 min
10 h 41 min
(1.11.)
641,799
597 min
9 h 57 min
(30.11.)
597,843
-1621.3 %
-9999,10616
Dec -9999 min
-167 h 21 min
589 min
9 h 49 min
589,851
596 min
9 h 56 min
(1.12.)
596,844
586 min
9 h 46 min
(20.12.)
586,854
-1698.7 %
-9999,10588
Year -10832 min
-181 h 28 min
730 min
12 h 10 min
730,710
871 min
14 h 31 min
(19. 6.)
871,569
586 min
9 h 46 min
(20. 12.)
586,854
-1483.9 %
-10832,11562



Mar, Apr, May

Jun, Jul, Aug

Sep, Oct, Nov

Dec, Jan, Feb
Max Min Average Sunlight/day Max Min Average Sunlight/day Max Min Average Sunlight/day Max Min Average Sunlight/day
(min/day) -9999 -9999 -9999 -1275.8%
-9999,10783
-9999 -9999 -9999 -1188.1%
-9999,10841
-9999 -9999 -9,999 -1477.4%
-9999,10676
-9999 -9999 -9999 -1623.2%
-9999,10615
Day length 862 688 784 871 773 842 771 597 677 686 586 616

Day length
+

Max day length Min day length
Jan 605 min
10 h 5 min
605,835
627 min
10 h 27 min
(Array.1.)
627,813
589 min
9 h 49 min
(1.1.)
589,851
Feb 657 min
10 h 57 min
657,783
686 min
11 h 26 min
(Array.2.)
686,754
629 min
10 h 29 min
(1.2.)
629,811
Mar 721 min
12 h 1 min
721,719
755 min
12 h 35 min
(Array.3.)
755,685
688 min
11 h 28 min
(1.3.)
688,752
Apr 788 min
13 h 8 min
788,652
817 min
13 h 37 min
(Array.4.)
817,623
757 min
12 h 37 min
(1.4.)
757,683
May 843 min
14 h 3 min
843,597
862 min
14 h 22 min
(Array.5.)
862,578
819 min
13 h 39 min
(1.5.)
819,621
Jun 869 min
14 h 29 min
869,571
871 min
14 h 31 min
(Array.6.)
871,569
863 min
14 h 23 min
(1.6.)
863,577
Jul 853 min
14 h 13 min
853,587
868 min
14 h 28 min
(Array.7.)
868,572
833 min
13 h 53 min
(31.7.)
833,607
Aug 804 min
13 h 24 min
804,636
832 min
13 h 52 min
(Array.8.)
832,608
773 min
12 h 53 min
(31.8.)
773,667
Sep 740 min
12 h 20 min
740,700
771 min
12 h 51 min
(Array.9.)
771,669
708 min
11 h 48 min
(30.9.)
708,732
Oct 674 min
11 h 14 min
674,766
706 min
11 h 46 min
(Array.10.)
706,734
643 min
10 h 43 min
(31.10.)
643,797
Nov 617 min
10 h 17 min
617,823
641 min
10 h 41 min
(Array.11.)
641,799
597 min
9 h 57 min
(30.11.)
597,843
Dec 589 min
9 h 49 min
589,851
596 min
9 h 56 min
(Array.12.)
596,844
586 min
9 h 46 min
(20.12.)
586,854
Year 730 min
12 h 10 min
730,710
871 min
14 h 31 min
(20. 6.)
871,569
586 min
9 h 46 min
(21. 12.)
586,854



Mar, Apr, May

Jun, Jul, Aug

Sep, Oct, Nov

Dec, Jan, Feb
Max Min Average Max Min Average Max Min Average Max Min Average
Day length 862 688 784 871 773 842 771 597 677 686 586 616

Units






Units

Language