Omaha
Nebraska, United States Of America
41.30 ° N
95.90 ° W
981 ft
Cool temperate moist forest
Dfa Warm continental humid climate
+
DCao Temperate continental climate with hot summer with cold winter
Traditional Koppen classification: Dfa (Warm continental humid climate)

Official definition:
  • D – temperature of the warmest month is higher than or equal to 10 °C and temperature of the coldest month is less than or equal to -3 °C.
  • f - precipitation is relatively evenly distributed throughout the year.
  • a - temperature of the warmest month is higher than 22 °C

In general it can be said that the D climate type can only be found in the Northern Hemisphere, northwards from the C climate zones, closer to the North Pole. The average temperature during the warmest month is higher than or equal to 10 °C, but in the winter the coldest month has an average value of less than -3 °C. In the winter it often snows and it tends to be quite windy and cold due to the polar and Arctic air masses.

This warmest alternative of the D climate type has precipitation evenly distributed throughout the year. The highest temperatures in the summer quite often reach very high values between 30 and 40 °C, in the winter however, they can drop to values in the range of – 10 to -25 °C. Regions assigned to the Dfa climate type in Europe tend to be drier than those with the same climate type in North America. The warmest month is usually July, sometimes August. The coldest month, with temperature below -3 °C, is most often January.

The Dfa subtype can be found in some parts of Central and Central East USA (for example Chicago, Boston, New York City or Pittsburgh), in Southern Ukraine, some parts of Russia or China.


Modern Trewartha classification: DCao (Temperate continental climate with hot summer with cold 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.

The continental subtype is typical for regions located more inland and this also means the temperature variation is larger than that in case of the oceanic subtype. The coldest month has an average temperature of less than 0 °C. Summers are usually warmer, while winters colder with snow being quite common.

Continental D climate type can be found for example in parts of Northeast U.S., Central and Eastern Europe and usually these areas are quite densely inhabited.

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

Summary

51 °F
40 / 62

29.9 in
94 days

57 %

7 h 34 min/day


Temperature
+

Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Min Temperature(°F) 11.017.028.040.051.060.066.063.054.041.029.016.0 40.0
Avg Temperature(°F) 21.027.039.052.062.072.077.074.065.053.039.025.0 51.0
Max Temperature (°F) 31.037.049.064.074.084.088.085.076.066.049.035.0 62.0
Range 20.020.021.024.023.024.022.022.022.025.020.019.0 22.0


Max month Min month Annual range
Min Temperature Jul Jan 55.0°F
Avg Temperature Jul Jan 56.0°F
Max Temperature Jul Jan 57.0°F
Temperature range Oct Dec 77.0°F
Month 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 51.0 28.0 39.67 23.0 66.0 60.0 63.00 6.0 54.0 29.0 41.33 25.0 17.0 11.0 14.67 6.0
Avg Temperature 62.0 39.0 51.00 23.0 77.0 72.0 74.33 5.0 65.0 39.0 52.33 26.0 27.0 21.0 24.33 6.0
Max Temperature 74.0 49.0 62.33 25.0 88.0 84.0 85.67 4.0 76.0 49.0 63.67 27.0 37.0 31.0 34.33 6.0

Temperature
+

Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Avg Temperature (°F) 21.027.039.052.062.072.077.074.065.053.039.025.0 51.0


Max month Min month Annual range
Avg Temperature Jul Jan 56.0°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 62.0 39.0 51.00 23.0 77.0 72.0 74.33 5.0 65.0 39.0 52.33 26.0 27.0 21.0 24.33 6.0


Humidity
+

Month Average
1 2 3 4 5 6 7 8 9 10 11 12
Avg Humidity (%) 68.065.059.050.052.054.051.055.051.049.058.066.0 51.0


Max month Min month Annual range
Avg Humidity Jan Oct 19.0%
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 59.0 50.0 53.67 9.0 55.0 51.0 53.33 4.0 58.0 49.0 52.67 9.0 68.0 65.0 66.33 3.0


Precipitation
+

Month Monthly average Annual total
1 2 3 4 5 6 7 8 9 10 11 12
Average monthly precipitation (in) 0.80.82.12.74.53.93.53.23.72.31.51.0 2.5 29.9
Wetdays 678911118108655 8 94
Wetdays ratio (%) 19.4
6,25
25.0
7,21
25.8
8,23
30.0
9,21
35.5
11,20
36.7
11,19
25.8
8,23
32.3
10,21
26.7
8,22
19.4
6,25
16.7
5,25
16.1
5,26
25.8
25.7534,74.2466


Max month Min month Max Season Min Season Annual range
Average monthly precipitation May Jan Summer Winter 3.8in
Wetdays May, Jun Nov, Dec Autumn Winter 6
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 2.1 2.5 9.3 3.9 3.2 0.6 10.6 3.7 1.5 2.2 7.5 1.0 0.8 0.3 2.6
Wetdays 11 8 3 28 11 8 3 29 53 8 45 100 7 5 2 18

Precipitation
+

Month Monthly average Annual total
1 2 3 4 5 6 7 8 9 10 11 12
Average monthly precipitation (in) 0.80.82.12.74.53.93.53.23.72.31.51.0 2.5 29.9


Max month Min month Max Season Min Season Annual range
Average monthly precipitation May Jan Summer Winter 3.8in
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 2.1 2.5 9.3 3.9 3.2 0.6 10.6 3.7 1.5 2.2 7.5 1.0 0.8 0.3 2.6


Sunlight / Day length
+

Average daily sunlight Average day length Max day length Min day length Sunlight/Day length
Jan 284 min
4 h 44 min
575 min
9 h 35 min
575,865
603 min
10 h 3 min
(31.1.)
603,837
555 min
9 h 15 min
(1.1.)
555,885
49.4 %
284,291
Feb 363 min
6 h 3 min
640 min
10 h 40 min
640,800
677 min
11 h 17 min
(29.2.)
677,763
605 min
10 h 5 min
(1.2.)
605,835
56.7 %
363,277
Mar 367 min
6 h 7 min
721 min
12 h 1 min
721,719
762 min
12 h 42 min
(31.3.)
762,678
679 min
11 h 19 min
(1.3.)
679,761
50.9 %
367,354
Apr 482 min
8 h 2 min
803 min
13 h 23 min
803,637
840 min
13 h 60 min
(30.4.)
840,600
765 min
12 h 45 min
(1.4.)
765,675
60.0 %
482,321
May 510 min
8 h 30 min
872 min
14 h 32 min
872,568
897 min
14 h 57 min
(31.5.)
897,543
842 min
14 h 2 min
(1.5.)
842,598
58.5 %
510,362
Jun 616 min
10 h 16 min
906 min
15 h 6 min
906,534
909 min
15 h 9 min
(19.6.)
909,531
898 min
14 h 58 min
(1.6.)
898,542
68.0 %
616,290
Jul 640 min
10 h 40 min
886 min
14 h 46 min
886,554
905 min
15 h 5 min
(1.7.)
905,535
860 min
14 h 20 min
(31.7.)
860,580
72.3 %
640,246
Aug 565 min
9 h 25 min
823 min
13 h 43 min
823,617
858 min
14 h 18 min
(1.8.)
858,582
785 min
13 h 5 min
(31.8.)
785,655
68.7 %
565,258
Sep 532 min
8 h 52 min
743 min
12 h 23 min
743,697
783 min
13 h 3 min
(1.9.)
783,657
704 min
11 h 44 min
(30.9.)
704,736
71.6 %
532,211
Oct 454 min
7 h 34 min
661 min
11 h 1 min
661,779
701 min
11 h 41 min
(1.10.)
701,739
622 min
10 h 22 min
(31.10.)
622,818
68.7 %
454,207
Nov 344 min
5 h 44 min
589 min
9 h 49 min
589,851
620 min
10 h 20 min
(1.11.)
620,820
564 min
9 h 24 min
(30.11.)
564,876
58.4 %
344,245
Dec 294 min
4 h 54 min
554 min
9 h 14 min
554,886
563 min
9 h 23 min
(1.12.)
563,877
551 min
9 h 11 min
(20.12.)
551,889
53.1 %
294,260
Year 492 min
8 h 12 min
731 min
12 h 11 min
731,709
909 min
15 h 9 min
(19. 6.)
909,531
551 min
9 h 11 min
(20. 12.)
551,889
67.3 %
492,239



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
Average sunlight (min/day) 510 367 453 56.7%
453,346
640 565 607 69.7%
607,264
532 344 443 66.7%
443,221
363 284 314 53.3%
314,275
Day length 897 679 799 909 785 871 783 564 665 677 551 589

Day length
+

Average day length Max day length Min day length
Jan 575 min
9 h 35 min
575,865
603 min
10 h 3 min
(Array.1.)
603,837
555 min
9 h 15 min
(1.1.)
555,885
Feb 640 min
10 h 40 min
640,800
677 min
11 h 17 min
(Array.2.)
677,763
605 min
10 h 5 min
(1.2.)
605,835
Mar 721 min
12 h 1 min
721,719
762 min
12 h 42 min
(Array.3.)
762,678
679 min
11 h 19 min
(1.3.)
679,761
Apr 803 min
13 h 23 min
803,637
840 min
13 h 60 min
(Array.4.)
840,600
765 min
12 h 45 min
(1.4.)
765,675
May 872 min
14 h 32 min
872,568
897 min
14 h 57 min
(Array.5.)
897,543
842 min
14 h 2 min
(1.5.)
842,598
Jun 906 min
15 h 6 min
906,534
909 min
15 h 9 min
(Array.6.)
909,531
898 min
14 h 58 min
(1.6.)
898,542
Jul 886 min
14 h 46 min
886,554
905 min
15 h 5 min
(Array.7.)
905,535
860 min
14 h 20 min
(31.7.)
860,580
Aug 823 min
13 h 43 min
823,617
858 min
14 h 18 min
(Array.8.)
858,582
785 min
13 h 5 min
(31.8.)
785,655
Sep 743 min
12 h 23 min
743,697
783 min
13 h 3 min
(Array.9.)
783,657
704 min
11 h 44 min
(30.9.)
704,736
Oct 661 min
11 h 1 min
661,779
701 min
11 h 41 min
(Array.10.)
701,739
622 min
10 h 22 min
(31.10.)
622,818
Nov 589 min
9 h 49 min
589,851
620 min
10 h 20 min
(Array.11.)
620,820
564 min
9 h 24 min
(30.11.)
564,876
Dec 554 min
9 h 14 min
554,886
563 min
9 h 23 min
(Array.12.)
563,877
551 min
9 h 11 min
(20.12.)
551,889
Year 731 min
12 h 11 min
731,709
909 min
15 h 9 min
(20. 6.)
909,531
551 min
9 h 11 min
(21. 12.)
551,889



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 897 679 799 909 785 871 783 564 665 677 551 589

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