Wilmington
North Carolina, United States Of America
34.25 ° N
77.90 ° W
33 ft
Subtropical 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

64 °F
53 / 74

54.3 in
119 days

57 %

7 h 48 min/day


Temperature
+

Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Min Temperature(°F) 34.036.043.051.059.067.072.071.065.054.045.038.0 53.0
Avg Temperature(°F) 45.047.054.062.070.076.080.079.075.065.057.049.0 64.0
Max Temperature (°F) 55.058.066.074.081.085.089.088.085.077.069.059.0 74.0
Range 21.022.023.023.022.018.017.017.020.023.024.021.0 21.0


Max month Min month Annual range
Min Temperature Jul Jan 38.0°F
Avg Temperature Jul Jan 35.0°F
Max Temperature Jul Jan 34.0°F
Temperature range Nov Jul, Aug 55.0°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 59.0 43.0 51.00 16.0 72.0 67.0 70.00 5.0 65.0 45.0 54.67 20.0 38.0 34.0 36.00 4.0
Avg Temperature 70.0 54.0 62.00 16.0 80.0 76.0 78.33 4.0 75.0 57.0 65.67 18.0 49.0 45.0 47.00 4.0
Max Temperature 81.0 66.0 73.67 15.0 89.0 85.0 87.33 4.0 85.0 69.0 77.00 16.0 59.0 55.0 57.33 4.0

Temperature
+

Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Avg Temperature (°F) 45.047.054.062.070.076.080.079.075.065.057.049.0 64.0


Max month Min month Annual range
Avg Temperature Jul Jan 35.0°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 70.0 54.0 62.00 16.0 80.0 76.0 78.33 4.0 75.0 57.0 65.67 18.0 49.0 45.0 47.00 4.0


Humidity
+

Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Avg Humidity (%) 59.056.053.050.055.058.062.062.062.056.056.058.0 64.0


Max month Min month Annual range
Avg Humidity Jul, Aug, Sep Apr 12.0%
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 55.0 50.0 52.67 5.0 62.0 58.0 60.67 4.0 62.0 56.0 58.00 6.0 59.0 56.0 57.67 3.0


Precipitation
+

Month Monthly average Annual total
1 2 3 4 5 6 7 8 9 10 11 12
Average monthly precipitation (in) 3.93.73.92.94.56.08.26.95.02.73.13.6 4.5 54.3
Wetdays 10101089101413117710 10 119
Wetdays ratio (%) 32.3
10,21
35.7
10,18
32.3
10,21
26.7
8,22
29.0
9,22
33.3
10,20
45.2
14,17
41.9
13,18
36.7
11,19
22.6
7,24
23.3
7,23
32.3
10,21
32.6
32.6027,67.3973


Max month Min month Max Season Min Season Annual range
Average monthly precipitation Jul Oct Summer Autumn 5.5in
Wetdays Jul Oct, Nov Autumn Spring 7
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 2.9 1.6 11.2 8.2 6.0 2.2 21.1 5.0 2.7 2.4 10.8 3.9 3.6 0.2 11.2
Wetdays 10 8 2 27 14 10 4 37 65 11 54 133 10 10 0 30

Precipitation
+

Month Monthly average Annual total
1 2 3 4 5 6 7 8 9 10 11 12
Average monthly precipitation (in) 3.93.73.92.94.56.08.26.95.02.73.13.6 4.5 54.3


Max month Min month Max Season Min Season Annual range
Average monthly precipitation Jul Oct Summer Autumn 5.5in
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 2.9 1.6 11.2 8.2 6.0 2.2 21.1 5.0 2.7 2.4 10.8 3.9 3.6 0.2 11.2


Sunlight / Day length
+

Max day length Min day length Sunlight/Day length
Jan 348 min
5 h 48 min
610 min
10 h 10 min
610,830
631 min
10 h 31 min
(31.1.)
631,809
594 min
9 h 54 min
(1.1.)
594,846
57.1 %
348,262
Feb 390 min
6 h 30 min
659 min
10 h 59 min
659,781
687 min
11 h 27 min
(29.2.)
687,753
632 min
10 h 32 min
(1.2.)
632,808
59.2 %
390,269
Mar 435 min
7 h 15 min
721 min
12 h 1 min
721,719
754 min
12 h 34 min
(31.3.)
754,686
689 min
11 h 29 min
(1.3.)
689,751
60.3 %
435,286
Apr 546 min
9 h 6 min
785 min
13 h 5 min
785,655
813 min
13 h 33 min
(30.4.)
813,627
756 min
12 h 36 min
(1.4.)
756,684
69.5 %
546,239
May 588 min
9 h 48 min
838 min
13 h 58 min
838,602
857 min
14 h 17 min
(31.5.)
857,583
815 min
13 h 35 min
(1.5.)
815,625
70.1 %
588,250
Jun 612 min
10 h 12 min
864 min
14 h 24 min
864,576
866 min
14 h 26 min
(19.6.)
866,574
858 min
14 h 18 min
(1.6.)
858,582
70.9 %
612,252
Jul 540 min
9 h 0 min
849 min
14 h 9 min
849,591
863 min
14 h 23 min
(1.7.)
863,577
829 min
13 h 49 min
(31.7.)
829,611
63.6 %
540,309
Aug 514 min
8 h 34 min
801 min
13 h 21 min
801,639
828 min
13 h 48 min
(1.8.)
828,612
772 min
12 h 52 min
(31.8.)
772,668
64.2 %
514,287
Sep 442 min
7 h 22 min
739 min
12 h 19 min
739,701
770 min
12 h 50 min
(1.9.)
770,670
709 min
11 h 49 min
(30.9.)
709,731
59.8 %
442,297
Oct 423 min
7 h 3 min
676 min
11 h 16 min
676,764
707 min
11 h 47 min
(1.10.)
707,733
646 min
10 h 46 min
(31.10.)
646,794
62.6 %
423,253
Nov 418 min
6 h 58 min
621 min
10 h 21 min
621,819
644 min
10 h 44 min
(1.11.)
644,796
601 min
10 h 1 min
(30.11.)
601,839
67.3 %
418,203
Dec 356 min
5 h 56 min
594 min
9 h 54 min
594,846
600 min
10 h 0 min
(1.12.)
600,840
591 min
9 h 51 min
(20.12.)
591,849
60.0 %
356,238
Year 507 min
8 h 27 min
730 min
12 h 10 min
730,710
866 min
14 h 26 min
(19. 6.)
866,574
591 min
9 h 51 min
(20. 12.)
591,849
69.4 %
507,223



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) 588 435 523 66.9%
523,259
612 514 555 66.3%
555,282
442 418 428 63.0%
428,251
390 348 365 58.8%
365,255
Day length 857 689 782 866 772 837 770 601 679 687 591 620

Day length
+

Max day length Min day length
Jan 610 min
10 h 10 min
610,830
631 min
10 h 31 min
(Array.1.)
631,809
594 min
9 h 54 min
(1.1.)
594,846
Feb 659 min
10 h 59 min
659,781
687 min
11 h 27 min
(Array.2.)
687,753
632 min
10 h 32 min
(1.2.)
632,808
Mar 721 min
12 h 1 min
721,719
754 min
12 h 34 min
(Array.3.)
754,686
689 min
11 h 29 min
(1.3.)
689,751
Apr 785 min
13 h 5 min
785,655
813 min
13 h 33 min
(Array.4.)
813,627
756 min
12 h 36 min
(1.4.)
756,684
May 838 min
13 h 58 min
838,602
857 min
14 h 17 min
(Array.5.)
857,583
815 min
13 h 35 min
(1.5.)
815,625
Jun 864 min
14 h 24 min
864,576
866 min
14 h 26 min
(Array.6.)
866,574
858 min
14 h 18 min
(1.6.)
858,582
Jul 849 min
14 h 9 min
849,591
863 min
14 h 23 min
(Array.7.)
863,577
829 min
13 h 49 min
(31.7.)
829,611
Aug 801 min
13 h 21 min
801,639
828 min
13 h 48 min
(Array.8.)
828,612
772 min
12 h 52 min
(31.8.)
772,668
Sep 739 min
12 h 19 min
739,701
770 min
12 h 50 min
(Array.9.)
770,670
709 min
11 h 49 min
(30.9.)
709,731
Oct 676 min
11 h 16 min
676,764
707 min
11 h 47 min
(Array.10.)
707,733
646 min
10 h 46 min
(31.10.)
646,794
Nov 621 min
10 h 21 min
621,819
644 min
10 h 44 min
(Array.11.)
644,796
601 min
10 h 1 min
(30.11.)
601,839
Dec 594 min
9 h 54 min
594,846
600 min
10 h 0 min
(Array.12.)
600,840
591 min
9 h 51 min
(20.12.)
591,849
Year 730 min
12 h 10 min
730,710
866 min
14 h 26 min
(20. 6.)
866,574
591 min
9 h 51 min
(21. 12.)
591,849



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 857 689 782 866 772 837 770 601 679 687 591 620

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