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 		626 min
10 h 26 min
(31.1.)
626,814 		589 min
9 h 49 min
(1.1.)
589,851 		-1653.9 %
-9999,10604
Feb -9999 min
-167 h 21 min 		655 min
10 h 55 min
655,785 		684 min
11 h 24 min
(29.2.)
684,756 		628 min
10 h 28 min
(1.2.)
628,812 		-1526.3 %
-9999,10654
Mar -9999 min
-167 h 21 min 		720 min
11 h 60 min
720,720 		753 min
12 h 33 min
(31.3.)
753,687 		687 min
11 h 27 min
(1.3.)
687,753 		-1389.1 %
-9999,10719
Apr -9999 min
-167 h 21 min 		786 min
13 h 6 min
786,654 		816 min
13 h 36 min
(30.4.)
816,624 		755 min
12 h 35 min
(1.4.)
755,685 		-1271.9 %
-9999,10785
May -9999 min
-167 h 21 min 		842 min
14 h 2 min
842,598 		861 min
14 h 21 min
(31.5.)
861,579 		817 min
13 h 37 min
(1.5.)
817,623 		-1188.1 %
-9999,10841
Jun -9999 min
-167 h 21 min 		869 min
14 h 29 min
869,571 		871 min
14 h 31 min
(20.6.)
871,569 		862 min
14 h 22 min
(1.6.)
862,578 		-1151.0 %
-9999,10868
Jul -9999 min
-167 h 21 min 		854 min
14 h 14 min
854,586 		868 min
14 h 28 min
(1.7.)
868,572 		834 min
13 h 54 min
(31.7.)
834,606 		-1170.9 %
-9999,10853
Aug -9999 min
-167 h 21 min 		805 min
13 h 25 min
805,635 		833 min
13 h 53 min
(1.8.)
833,607 		775 min
12 h 55 min
(31.8.)
775,665 		-1242.3 %
-9999,10804
Sep -9999 min
-167 h 21 min 		741 min
12 h 21 min
741,699 		773 min
12 h 53 min
(1.9.)
773,667 		710 min
11 h 50 min
(30.9.)
710,730 		-1348.8 %
-9999,10740
Oct -9999 min
-167 h 21 min 		675 min
11 h 15 min
675,765 		707 min
11 h 47 min
(1.10.)
707,733 		644 min
10 h 44 min
(31.10.)
644,796 		-1480.7 %
-9999,10674
Nov -9999 min
-167 h 21 min 		618 min
10 h 18 min
618,822 		642 min
10 h 42 min
(1.11.)
642,798 		597 min
9 h 57 min
(30.11.)
597,843 		-1618.5 %
-9999,10617
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
(21.12.)
586,854 		-1698.2 %
-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 -1277.9%
-9999,10781 		-9999 -9999 -9999 -1187.2%
-9999,10841 		-9999 -9999 -9,999 -1474.5%
-9999,10677 		-9999 -9999 -9999 -1625.0%
-9999,10614
Day length 861 687 782 871 775 842 773 597 678 684 586 615

Day length
+

Max day length Min day length
Jan 605 min
10 h 5 min
605,835 		626 min
10 h 26 min
(Array.1.)
626,814 		589 min
9 h 49 min
(1.1.)
589,851
Feb 655 min
10 h 55 min
655,785 		684 min
11 h 24 min
(Array.2.)
684,756 		628 min
10 h 28 min
(1.2.)
628,812
Mar 720 min
11 h 60 min
720,720 		753 min
12 h 33 min
(Array.3.)
753,687 		687 min
11 h 27 min
(1.3.)
687,753
Apr 786 min
13 h 6 min
786,654 		816 min
13 h 36 min
(Array.4.)
816,624 		755 min
12 h 35 min
(1.4.)
755,685
May 842 min
14 h 2 min
842,598 		861 min
14 h 21 min
(Array.5.)
861,579 		817 min
13 h 37 min
(1.5.)
817,623
Jun 869 min
14 h 29 min
869,571 		871 min
14 h 31 min
(Array.6.)
871,569 		862 min
14 h 22 min
(1.6.)
862,578
Jul 854 min
14 h 14 min
854,586 		868 min
14 h 28 min
(Array.7.)
868,572 		834 min
13 h 54 min
(31.7.)
834,606
Aug 805 min
13 h 25 min
805,635 		833 min
13 h 53 min
(Array.8.)
833,607 		775 min
12 h 55 min
(31.8.)
775,665
Sep 741 min
12 h 21 min
741,699 		773 min
12 h 53 min
(Array.9.)
773,667 		710 min
11 h 50 min
(30.9.)
710,730
Oct 675 min
11 h 15 min
675,765 		707 min
11 h 47 min
(Array.10.)
707,733 		644 min
10 h 44 min
(31.10.)
644,796
Nov 618 min
10 h 18 min
618,822 		642 min
10 h 42 min
(Array.11.)
642,798 		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
(21.12.)
586,854
Year 730 min
12 h 10 min
730,710 		871 min
14 h 31 min
(21. 6.)
871,569 		586 min
9 h 46 min
(22. 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 861 687 782 871 775 842 773 597 678 684 586 615

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