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Plymouth County, Iowa, United States

When to plant True Melon in Plymouth County, Iowa, United States

True Melon can be planted after June 13, when air temperature is consistently in a range between 55°F and 100°F and soil temperature is above 45°F.

True Melon details page

Growing True Melon in Plymouth County

Plymouth County, IowaDays suitable for growing True MelonJanFebMarAprMayJunJulAugSepOctNovDec415059687786953223145-4-13-22January 01 - January 03 Average daily temperature range from 16°F to 31°F Highest temperature recorded in last 4 years 45°F Lowest temperature recorded in last 4 years 1°FJanuary 04 - January 10 Average daily temperature range from 19°F to 33°F Highest temperature recorded in last 4 years 47°F Lowest temperature recorded in last 4 years -1°FJanuary 11 - January 17 Average daily temperature range from 21°F to 35°F Highest temperature recorded in last 4 years 48°F Lowest temperature recorded in last 4 years 1°FJanuary 18 - January 24 Average daily temperature range from 15°F to 29°F Highest temperature recorded in last 4 years 52°F Lowest temperature recorded in last 4 years -10°FJanuary 25 - January 31 Average daily temperature range from 12°F to 27°F Highest temperature recorded in last 4 years 49°F Lowest temperature recorded in last 4 years -14°FFebruary 01 - February 07 Average daily temperature range from 15°F to 31°F Highest temperature recorded in last 4 years 48°F Lowest temperature recorded in last 4 years -9°FFebruary 08 - February 14 Average daily temperature range from 11°F to 28°F Highest temperature recorded in last 4 years 52°F Lowest temperature recorded in last 4 years -13°FFebruary 15 - February 21 Average daily temperature range from 13°F to 31°F Highest temperature recorded in last 4 years 56°F Lowest temperature recorded in last 4 years -23°FFebruary 22 - February 28 Average daily temperature range from 16°F to 35°F Highest temperature recorded in last 4 years 60°F Lowest temperature recorded in last 4 years -4°FMarch 01 - March 07 Average daily temperature range from 23°F to 42°F Highest temperature recorded in last 4 years 62°F Lowest temperature recorded in last 4 years -8°FMarch 08 - March 14 Average daily temperature range from 28°F to 44°F Highest temperature recorded in last 4 years 67°F Lowest temperature recorded in last 4 years 8°FMarch 15 - March 21 Average daily temperature range from 29°F to 48°F Highest temperature recorded in last 4 years 66°F Lowest temperature recorded in last 4 years 10°FMarch 22 - March 28 Average daily temperature range from 31°F to 49°F Highest temperature recorded in last 4 years 65°F Lowest temperature recorded in last 4 years 19°FMarch 29 - April 04 Average daily temperature range from 32°F to 54°F Highest temperature recorded in last 4 years 73°F Lowest temperature recorded in last 4 years 18°FApril 05 - April 11 Average daily temperature range from 39°F to 59°F Highest temperature recorded in last 4 years 75°F Lowest temperature recorded in last 4 years 20°FApril 12 - April 18 Average daily temperature range from 34°F to 53°F Highest temperature recorded in last 4 years 79°F Lowest temperature recorded in last 4 years 20°FApril 19 - April 25 Average daily temperature range from 39°F to 60°F Highest temperature recorded in last 4 years 77°F Lowest temperature recorded in last 4 years 25°FApril 26 - May 02 Average daily temperature range from 43°F to 62°F Highest temperature recorded in last 4 years 80°F Lowest temperature recorded in last 4 years 26°FMay 03 - May 09 Average daily temperature range from 45°F to 63°F Highest temperature recorded in last 4 years 79°F Lowest temperature recorded in last 4 years 35°FMay 10 - May 16 Average daily temperature range from 48°F to 67°F Highest temperature recorded in last 4 years 85°F Lowest temperature recorded in last 4 years 33°FMay 17 - May 23 Average daily temperature range from 52°F to 68°F Highest temperature recorded in last 4 years 83°F Lowest temperature recorded in last 4 years 36°FMay 24 - May 30 Average daily temperature range from 54°F to 70°F Highest temperature recorded in last 4 years 83°F Lowest temperature recorded in last 4 years 41°FMay 31 - June 06 Average daily temperature range from 58°F to 77°F Highest temperature recorded in last 4 years 85°F Lowest temperature recorded in last 4 years 46°FJune 07 - June 13 Average daily temperature range from 59°F to 78°F Highest temperature recorded in last 4 years 88°F Lowest temperature recorded in last 4 years 44°FJune 14 - June 20 Average daily temperature range from 62°F to 81°F Highest temperature recorded in last 4 years 91°F Lowest temperature recorded in last 4 years 52°FJune 21 - June 27 Average daily temperature range from 61°F to 78°F Highest temperature recorded in last 4 years 87°F Lowest temperature recorded in last 4 years 50°FJune 28 - July 04 Average daily temperature range from 65°F to 82°F Highest temperature recorded in last 4 years 88°F Lowest temperature recorded in last 4 years 57°FJuly 05 - July 11 Average daily temperature range from 63°F to 79°F Highest temperature recorded in last 4 years 88°F Lowest temperature recorded in last 4 years 47°FJuly 12 - July 18 Average daily temperature range from 63°F to 80°F Highest temperature recorded in last 4 years 88°F Lowest temperature recorded in last 4 years 56°FJuly 19 - July 25 Average daily temperature range from 64°F to 82°F Highest temperature recorded in last 4 years 91°F Lowest temperature recorded in last 4 years 53°FJuly 26 - August 01 Average daily temperature range from 65°F to 82°F Highest temperature recorded in last 4 years 92°F Lowest temperature recorded in last 4 years 53°FAugust 02 - August 08 Average daily temperature range from 63°F to 80°F Highest temperature recorded in last 4 years 94°F Lowest temperature recorded in last 4 years 51°FAugust 09 - August 15 Average daily temperature range from 63°F to 80°F Highest temperature recorded in last 4 years 87°F Lowest temperature recorded in last 4 years 50°FAugust 16 - August 22 Average daily temperature range from 61°F to 79°F Highest temperature recorded in last 4 years 95°F Lowest temperature recorded in last 4 years 53°FAugust 23 - August 29 Average daily temperature range from 65°F to 82°F Highest temperature recorded in last 4 years 95°F Lowest temperature recorded in last 4 years 52°FAugust 30 - September 05 Average daily temperature range from 60°F to 78°F Highest temperature recorded in last 4 years 92°F Lowest temperature recorded in last 4 years 51°FSeptember 06 - September 12 Average daily temperature range from 57°F to 74°F Highest temperature recorded in last 4 years 88°F Lowest temperature recorded in last 4 years 43°FSeptember 13 - September 19 Average daily temperature range from 58°F to 76°F Highest temperature recorded in last 4 years 84°F Lowest temperature recorded in last 4 years 46°FSeptember 20 - September 26 Average daily temperature range from 56°F to 73°F Highest temperature recorded in last 4 years 89°F Lowest temperature recorded in last 4 years 43°FSeptember 27 - October 03 Average daily temperature range from 55°F to 72°F Highest temperature recorded in last 4 years 85°F Lowest temperature recorded in last 4 years 38°FOctober 04 - October 10 Average daily temperature range from 48°F to 66°F Highest temperature recorded in last 4 years 82°F Lowest temperature recorded in last 4 years 33°FOctober 11 - October 17 Average daily temperature range from 43°F to 59°F Highest temperature recorded in last 4 years 79°F Lowest temperature recorded in last 4 years 29°FOctober 18 - October 24 Average daily temperature range from 42°F to 57°F Highest temperature recorded in last 4 years 81°F Lowest temperature recorded in last 4 years 23°FOctober 25 - October 31 Average daily temperature range from 33°F to 48°F Highest temperature recorded in last 4 years 65°F Lowest temperature recorded in last 4 years 19°FNovember 01 - November 07 Average daily temperature range from 36°F to 54°F Highest temperature recorded in last 4 years 71°F Lowest temperature recorded in last 4 years 15°FNovember 08 - November 14 Average daily temperature range from 31°F to 46°F Highest temperature recorded in last 4 years 68°F Lowest temperature recorded in last 4 years 9°FNovember 15 - November 21 Average daily temperature range from 32°F to 47°F Highest temperature recorded in last 4 years 65°F Lowest temperature recorded in last 4 years 15°FNovember 22 - November 28 Average daily temperature range from 27°F to 43°F Highest temperature recorded in last 4 years 57°F Lowest temperature recorded in last 4 years 16°FNovember 29 - December 05 Average daily temperature range from 27°F to 42°F Highest temperature recorded in last 4 years 59°F Lowest temperature recorded in last 4 years 12°FDecember 06 - December 12 Average daily temperature range from 25°F to 38°F Highest temperature recorded in last 4 years 53°F Lowest temperature recorded in last 4 years 8°FDecember 13 - December 19 Average daily temperature range from 22°F to 36°F Highest temperature recorded in last 4 years 61°F Lowest temperature recorded in last 4 years -3°FDecember 20 - December 26 Average daily temperature range from 19°F to 35°F Highest temperature recorded in last 4 years 52°F Lowest temperature recorded in last 4 years -14°FDecember 27 - December 31 Average daily temperature range from 21°F to 34°F Highest temperature recorded in last 4 years 40°F Lowest temperature recorded in last 4 years -1°FPlan and Plant in Plymouth County, IowaPossible peakAverage rangePossible dropAverage range below freezingLowest possible drop below freezing

Days suitable for growing True Melon in Plymouth County, Iowa

Plymouth County has on average 88 continious days, suitable for growing True Melon. True Melon needs on average between 80 and 100 days to mature and produce harvest.

Growing season for True Melon in Plymouth County is quite short, with only 88 continious days suitable for growing, so it is really important to time your planting activities, and choose varieties with shorter time to harvest requirements.

True Melon seeds can be planted between June 13 and June 20. Planting before June 13 without any additional protection is not advised because cold streaks can damage or kill off young plant. When planting after June 20, True Melon will not have enough time to mature and produce harvest.

Growing season extention

In order to maximize chances for a good harvest of True Melon in Plymouth County, some extra steps can be taken to extend growing season.

Start seeds indoors

When starting seeds indoors, it is possible to guarantee best possible conditions for young seedlings. Consistent temperature range, adequate watering and ample light (natural, supplemented with artifitial grow lights) will ensure you have strong and healthy seedlings just in time for transplanting into soil.

It takes 49 days on average for True Melon to sprout, and grow big enough to be ready for transplanting.

June 13 is on average first day in Plymouth County that has required temperatures for young True Melon seedlings to grow, without worrying about cold damage.

Seeds can be started indoors beween April 25 and May 31, this way they will be ready just in time for transplanting on June 13.

Seedlings started after May 31 might not have enough time to mature and produce harvest.

Use a cold frame

When using a cold frame in a beggining of growing season You can protect young plants from possible temperature drops, this way growing season can start up to 2 weeks earlier.

Use an additional shading

On days, when air temperatures are expected to raise above 100°F, which is in top of tolerable range for True Melon, consider using additional shading to prevent heat shock.

Total frost free days169
Last frost expected dateApril 28
First frost expected dateOctober 14
Dates with ideal conditions
Dates with suitable conditions
May 18
May 25
May 30
June 03 to June 11 (9 days)
June 13 to September 08 (88 days)
September 10
September 14 to September 21 (8 days)
September 24
September 29 to October 01 (3 days)
Total days ideal for growing True Melon in Plymouth County0
Total days suitable for growing True Melon in Plymouth County113
Days needed for True Melon to mature and produce harvest80 - 100
Seed can be planted directly into soil no
Seed has to be started indoors yes

Notable temperature facts for growing True Melon in Plymouth County, Iowa

Table with days suitable to grow vegetables in Plymouth County, Iowa

Tolerable temperature range for True Melon: 55°F to 100°F

WeekAverage temperaturePossible min and max temperatureSuitable for True Melon
1January 01 - January 0316°F to 31°F1°F to 45°F
2January 04 - January 1019°F to 33°F-1°F to 47°F
3January 11 - January 1721°F to 35°F1°F to 48°F
4January 18 - January 2415°F to 29°F-10°F to 52°F
5January 25 - January 3112°F to 27°F-14°F to 49°F
6February 01 - February 0715°F to 31°F-9°F to 48°F
7February 08 - February 1411°F to 28°F-13°F to 52°F
8February 15 - February 2113°F to 31°F-23°F to 56°F
9February 22 - February 2816°F to 35°F-4°F to 60°F
10March 01 - March 0723°F to 42°F-8°F to 62°F
11March 08 - March 1428°F to 44°F8°F to 67°F
12March 15 - March 2129°F to 48°F10°F to 66°F
13March 22 - March 2831°F to 49°F19°F to 65°F
14March 29 - April 0432°F to 54°F18°F to 73°F
15April 05 - April 1139°F to 59°F20°F to 75°F
16April 12 - April 1834°F to 53°F20°F to 79°F
17April 19 - April 2539°F to 60°F25°F to 77°F
18April 26 - May 0243°F to 62°F26°F to 80°F
19May 03 - May 0945°F to 63°F35°F to 79°F
20May 10 - May 1648°F to 67°F33°F to 85°F
21May 17 - May 2352°F to 68°F36°F to 83°F
22May 24 - May 3054°F to 70°F41°F to 83°F
23May 31 - June 0658°F to 77°F46°F to 85°FTRUE
24June 07 - June 1359°F to 78°F44°F to 88°FTRUE
25June 14 - June 2062°F to 81°F52°F to 91°FTRUE
26June 21 - June 2761°F to 78°F50°F to 87°FTRUE
27June 28 - July 0465°F to 82°F57°F to 88°FTRUE
28July 05 - July 1163°F to 79°F47°F to 88°FTRUE
29July 12 - July 1863°F to 80°F56°F to 88°FTRUE
30July 19 - July 2564°F to 82°F53°F to 91°FTRUE
31July 26 - August 0165°F to 82°F53°F to 92°FTRUE
32August 02 - August 0863°F to 80°F51°F to 94°FTRUE
33August 09 - August 1563°F to 80°F50°F to 87°FTRUE
34August 16 - August 2261°F to 79°F53°F to 95°FTRUE
35August 23 - August 2965°F to 82°F52°F to 95°FTRUE
36August 30 - September 0560°F to 78°F51°F to 92°FTRUE
37September 06 - September 1257°F to 74°F43°F to 88°FTRUE
38September 13 - September 1958°F to 76°F46°F to 84°FTRUE
39September 20 - September 2656°F to 73°F43°F to 89°FTRUE
40September 27 - October 0355°F to 72°F38°F to 85°FTRUE
41October 04 - October 1048°F to 66°F33°F to 82°F
42October 11 - October 1743°F to 59°F29°F to 79°F
43October 18 - October 2442°F to 57°F23°F to 81°F
44October 25 - October 3133°F to 48°F19°F to 65°F
45November 01 - November 0736°F to 54°F15°F to 71°F
46November 08 - November 1431°F to 46°F9°F to 68°F
47November 15 - November 2132°F to 47°F15°F to 65°F
48November 22 - November 2827°F to 43°F16°F to 57°F
49November 29 - December 0527°F to 42°F12°F to 59°F
50December 06 - December 1225°F to 38°F8°F to 53°F
51December 13 - December 1922°F to 36°F-3°F to 61°F
52December 20 - December 2619°F to 35°F-14°F to 52°F
53December 27 - December 3121°F to 34°F-1°F to 40°F

Days with suitable temperature for growing True Melon in Plymouth County, Iowa