Amsterdam

	Netherlands
	52.10 ° N 5.18 ° E
	7 ft
	Cool temperate moist forest

Cfb

Oceanic climate

DOlk

Temperate oceanic climate with mild summer with cool winter

Traditional Koppen classification: Cfb (Oceanic 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
b - temperature of each of the four warmest months is higher than 10°C, but the temperature of the warmest month is less than 22 °C

The Cfb climate type is an oceanic type of climate with mild winter and evenly distributed precipitation. Average temperature of all months is less than 22 °C, which is what differentiates it from the Cfa type. Meanwhile at least four months have average temperature of 10 °C or more.

Just like precipitation, also temperatures tend to be relatively constant and differences between day and night are not very big. Precipitation throughout the year are frequent, but not very intense and sometimes even many wetdays in a row can occur. In the winter and in the autumn are common fogs and during the year also thunderstorms.

Winters are mild (temperatures only very rarely drops below 0 °C and if, then only very slightly) and summers nicely warm. Frontal activity causes lot of cloudiness and relatively high humidity in the autumn, winter and spring.

The total annual rainfall ranges usually between 500 and 2500 mm and in the winter it sometimes also snows.

Temperate oceanic climate Cfb can be found for example in the United Kingdom, Western part of France, Germany, on the West coast of Europe, Northern part of Spain, some parts of South America (Southern and Northern tips), in Southeast Australia and New Zealand.

Modern Trewartha classification: DOlk (Temperate oceanic climate with mild summer with cool winter)

In the Trewartha classification, the category D is like in the Koppen classification, assigned to regions in the temperate zone. The criterion for this type of climate is four to seven months with average temperature of more than 10 °C. In general it is further subdivided into two subtypes: oceanic and continental. These differ in their average temperature of the coldest month.

Temperate climate is characterized by four distinct seasons and there are substantial differences between the temperatures in the summer and in the winter, but the absolute values are not so extreme and the change is gradual.

In case of the oceanic type, winter is milder than that of the continental type and the temperature of the coldest month usually above 0 °C. The weather conditions are to a large extent influenced by the nearby ocean, which causes smaller temperature variation between the individual seasons. Typical is Western wind and so we often find this type of climate on Western coasts of continents, such as for example in Western Europe or Western coast of the U.S., in latitudes between 40 and 60 ° in America and 40 and 65 ° in Europe. These regions tend to be densely inhabited.

mild summer: warmest month with average temperature between 10 and 18 °C
cool winter: coldest month with average temperature between 0 and 10 °C

Summary

49 °F
42 / 56

30.2 in
217 days

77 %

4 h 17 min/day

Temperature

	Month												Average
	1	2	3	4	5	6	7	8	9	10	11	12	Average
Min Temperature(°F)	30.0	30.0	34.0	39.0	46.0	52.0	55.0	55.0	50.0	45.0	37.0	34.0	42.0
Avg Temperature(°F)	35.0	36.0	42.0	47.0	55.0	61.0	64.0	64.0	58.0	51.0	43.0	37.0	49.0
Max Temperature (°F)	39.0	41.0	50.0	55.0	64.0	70.0	72.0	72.0	66.0	57.0	48.0	41.0	56.0
Range	9.0	11.0	16.0	16.0	18.0	18.0	17.0	17.0	16.0	12.0	11.0	7.0	14.0

	Max month	Min month	Annual range
Min Temperature	Jul, Aug	Jan, Feb	25.0°F
Avg Temperature	Jul, Aug	Jan	29.0°F
Max Temperature	Jul, Aug	Jan	33.0°F
Temperature range	May, Jun	Dec	42.0°F

													Average
	1	2	3	4	5	6	7	8	9	10	11	12	Average
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	46.0	34.0	39.67	12.0	55.0	52.0	54.00	3.0	50.0	37.0	44.00	13.0	34.0	30.0	31.33	4.0
Avg Temperature	55.0	42.0	48.00	13.0	64.0	61.0	63.00	3.0	58.0	43.0	50.67	15.0	37.0	35.0	36.00	2.0
Max Temperature	64.0	50.0	56.33	14.0	72.0	70.0	71.33	2.0	66.0	48.0	57.00	18.0	41.0	39.0	40.33	2.0

Temperature

	Month												Average
	1	2	3	4	5	6	7	8	9	10	11	12	Average
Avg Temperature (°F)	35.0	36.0	42.0	47.0	55.0	61.0	64.0	64.0	58.0	51.0	43.0	37.0	49.0

	Max month	Min month	Annual range
Avg Temperature	Jul, Aug	Jan	29.0°F

	Month												Average
	1	2	3	4	5	6	7	8	9	10	11	12	Average
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	55.0	42.0	48.00	13.0	64.0	61.0	63.00	3.0	58.0	43.0	50.67	15.0	37.0	35.0	36.00	2.0

Humidity

	Month												Average
	1	2	3	4	5	6	7	8	9	10	11	12	Average
Avg Humidity (%)	86.0	83.0	76.0	70.0	67.0	67.0	72.0	74.0	77.0	81.0	87.0	88.0	49.0

	Max month	Min month	Annual range
Avg Humidity	Dec	May, Jun	21.0%

	Month												Average
	1	2	3	4	5	6	7	8	9	10	11	12	Average
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	76.0	67.0	71.00	9.0	74.0	67.0	71.00	7.0	87.0	77.0	81.67	10.0	88.0	83.0	85.67	5.0

Precipitation

	Month												Monthly average	Annual total
	1	2	3	4	5	6	7	8	9	10	11	12	Monthly average	Annual total
Average monthly precipitation (in)	2.7	2.1	1.7	1.9	2.1	2.3	3.0	3.4	2.8	2.8	2.8	2.5	2.5	30.2
Wetdays	22	19	16	16	14	14	17	18	19	20	21	21	18	217
Wetdays ratio (%)	71.0 22,9	67.9 19,9	51.6 16,15	53.3 16,14	45.2 14,17	46.7 14,16	54.8 17,14	58.1 18,13	63.3 19,11	64.5 20,11	70.0 21,9	67.7 21,10	59.5 59.4521,40.5479

	Max month	Min month	Max Season	Min Season	Annual range
Average monthly precipitation	Aug	Mar	Summer	Spring	1.7in
Wetdays	Jan	May, Jun	Autumn	Spring	8

	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)	2.1	1.7	0.3	5.7	3.4	2.3	1.2	8.7	2.8	2.8	0.1	8.4	2.7	2.1	0.6	7.3
Wetdays	16	14	2	46	18	14	4	49	51	19	32	113	22	19	3	62

Precipitation

	Month												Monthly average	Annual total
	1	2	3	4	5	6	7	8	9	10	11	12	Monthly average	Annual total
Average monthly precipitation (in)	2.7	2.1	1.7	1.9	2.1	2.3	3.0	3.4	2.8	2.8	2.8	2.5	2.5	30.2

	Max month	Min month	Max Season	Min Season	Annual range
Average monthly precipitation	Aug	Mar	Summer	Spring	1.7in

	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)	2.1	1.7	0.3	5.7	3.4	2.3	1.2	8.7	2.8	2.8	0.1	8.4	2.7	2.1	0.6	7.3

Sunlight / Day length

			Max day length	Min day length	Sunlight/Day length
Jan	108 min 1 h 48 min	499 min 8 h 19 min 499,941	541 min 9 h 1 min (31.1.) 541,899	468 min 7 h 48 min (1.1.) 468,972	21.6 % 108,391
Feb	146 min 2 h 26 min	596 min 9 h 56 min 596,844	650 min 10 h 50 min (29.2.) 650,790	544 min 9 h 4 min (1.2.) 544,896	24.5 % 146,450
Mar	245 min 4 h 5 min	715 min 11 h 55 min 715,725	776 min 12 h 56 min (31.3.) 776,664	654 min 10 h 54 min (1.3.) 654,786	34.3 % 245,470
Apr	326 min 5 h 26 min	837 min 13 h 57 min 837,603	892 min 14 h 52 min (30.4.) 892,548	780 min 12 h 60 min (1.4.) 780,660	39.0 % 326,511
May	408 min 6 h 48 min	943 min 15 h 43 min 943,497	983 min 16 h 23 min (31.5.) 983,457	896 min 14 h 56 min (1.5.) 896,544	43.3 % 408,535
Jun	444 min 7 h 24 min	999 min 16 h 39 min 999,441	1004 min 16 h 44 min (20.6.) 1004,436	985 min 16 h 25 min (1.6.) 985,455	44.5 % 444,555
Jul	383 min 6 h 23 min	969 min 16 h 9 min 969,471	998 min 16 h 38 min (1.7.) 998,442	930 min 15 h 30 min (31.7.) 930,510	39.5 % 383,586
Aug	358 min 5 h 58 min	874 min 14 h 34 min 874,566	927 min 15 h 27 min (1.8.) 927,513	818 min 13 h 38 min (31.8.) 818,622	41.0 % 358,516
Sep	290 min 4 h 50 min	756 min 12 h 36 min 756,684	814 min 13 h 34 min (1.9.) 814,626	698 min 11 h 38 min (30.9.) 698,742	38.3 % 290,466
Oct	195 min 3 h 15 min	635 min 10 h 35 min 635,805	694 min 11 h 34 min (1.10.) 694,746	578 min 9 h 38 min (31.10.) 578,862	30.7 % 195,440
Nov	100 min 1 h 40 min	526 min 8 h 46 min 526,914	574 min 9 h 34 min (1.11.) 574,866	486 min 8 h 6 min (30.11.) 486,954	19.0 % 100,426
Dec	79 min 1 h 19 min	468 min 7 h 48 min 468,972	484 min 8 h 4 min (1.12.) 484,956	462 min 7 h 42 min (21.12.) 462,978	16.9 % 79,389
Year	278 min 4 h 38 min	735 min 12 h 15 min 735,705	1004 min 16 h 44 min (19. 6.) 1004,436	462 min 7 h 42 min (20. 12.) 462,978	37.9 % 278,457

	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)	408	245	326	39.2% 326,505	444	358	395	41.7% 395,552	290	100	195	30.5% 195,444	146	79	111	21.4% 111,408
Day length	983	654	832	39.2% 326,505	1004	818	947	41.7% 395,552	814	486	639	30.5% 195,444	650	462	519	21.4% 111,408

Day length

		Max day length	Min day length
Jan	499 min 8 h 19 min 499,941	541 min 9 h 1 min (Array.1.) 541,899	468 min 7 h 48 min (1.1.) 468,972
Feb	596 min 9 h 56 min 596,844	650 min 10 h 50 min (Array.2.) 650,790	544 min 9 h 4 min (1.2.) 544,896
Mar	715 min 11 h 55 min 715,725	776 min 12 h 56 min (Array.3.) 776,664	654 min 10 h 54 min (1.3.) 654,786
Apr	837 min 13 h 57 min 837,603	892 min 14 h 52 min (Array.4.) 892,548	780 min 12 h 60 min (1.4.) 780,660
May	943 min 15 h 43 min 943,497	983 min 16 h 23 min (Array.5.) 983,457	896 min 14 h 56 min (1.5.) 896,544
Jun	999 min 16 h 39 min 999,441	1004 min 16 h 44 min (Array.6.) 1004,436	985 min 16 h 25 min (1.6.) 985,455
Jul	969 min 16 h 9 min 969,471	998 min 16 h 38 min (Array.7.) 998,442	930 min 15 h 30 min (31.7.) 930,510
Aug	874 min 14 h 34 min 874,566	927 min 15 h 27 min (Array.8.) 927,513	818 min 13 h 38 min (31.8.) 818,622
Sep	756 min 12 h 36 min 756,684	814 min 13 h 34 min (Array.9.) 814,626	698 min 11 h 38 min (30.9.) 698,742
Oct	635 min 10 h 35 min 635,805	694 min 11 h 34 min (Array.10.) 694,746	578 min 9 h 38 min (31.10.) 578,862
Nov	526 min 8 h 46 min 526,914	574 min 9 h 34 min (Array.11.) 574,866	486 min 8 h 6 min (30.11.) 486,954
Dec	468 min 7 h 48 min 468,972	484 min 8 h 4 min (Array.12.) 484,956	462 min 7 h 42 min (21.12.) 462,978
Year	735 min 12 h 15 min 735,705	1004 min 16 h 44 min (21. 6.) 1004,436	462 min 7 h 42 min (22. 12.) 462,978

	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	983	654	832	1004	818	947	814	486	639	650	462	519

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