These are 3 of the Four legendary palms The only one female palm This picture is from www.wunderground.com One of the male palms with the man who planted all of them back in 1973 This is 13 years old plant (2 feet of trunk) in the author's garden from seed from the Four palms
Bulgarian  Last updated:  February 10th, 2003


Climate data 1991-2002 for Plovdiv, Bulgaria

By Kiril Donov, M.Sc. Tropical and Subtropical Agriculture

 

Extreme minimum temperatures

in Celsius degrees, for the period 1990-2002

ExtremeLow - extreme minimum temperature (in degrees Celsius and Fahrenheit);
AirHumid- average air humidity for the measuring time (in %);
Each color in the table matches the corresponding winter (1990-91, 1991-92 and so on).

Month

January

February

December

Year

ExtremeLow

AirHumid

ExtremeLow

AirHumid

ExtremeLow

AirHumid

 

Celsius

Fahrenheit %

Celsius

Fahrenheit %

Celsius

Fahrenheit %

1990

-16,0

3.2 68

-5,0

23,0 58

-4,5

23,9 79

1991

-9,5

14,9 75

-15,0

5,0 69

-9,0

15,8 na

1992

-10,0

14,0 76

-10,1

13,8 78

-13,0

8,6 78

1993

-27,5

-17,5 74

-16,5

2,3 54

-8,0

17,6 69

1994

-8,0

17,6 81

-10,0

14,0 65

-9,0

15,8 88

1995

-18,0

-0,4 83

-5,2

22,6 73

-6,0

21,2 88

1996

-7,0

19,4 95

-13,5

7,7 80

-11,0

12,2 92

1997

-10,5

13,1 97

-11,5

11,3 90

-19,0

-2,2 85

1998

-7,0

19,4 78

-11,0

12,2 92

-15,0

5,0 88

1999

-10,0

14,0 66

-10,0

14,0 88

-13,0

8,6 76

2000

-17,0

1,4 81

-6,0

21,2 66  -11,0 12,2 82

2001

-3,6

25,5 87

-6,1

21,0 75  -21,5 -6,7 78

2002

-15,1

4,8 91

-5,7

21,7 82  -14,0 6,8 93

2003

-10,0

14,0 95

 

         

Temperature converter: Enter number and click outside the box
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Average monthly and average low temperatures

AverMonthTemp - average monthly temperature;
AverLow - average low of the daily lows during the month;

Month

January

February

December

Jan

Feb

Dec

Year

AverMonthTemp

AverMonthTemp

AverMonthTemp

AverLow

AverLow

AverLow

 

Cels

Fahr

Cels

Fahr

Cels

Fahr

Cels

Fahr

Cels

Fahr

Cels

Fahr

1990

-0,1

31,8

6,9

44,4

4,1

39,4

-5,1

22,8

1,5

34,7

1,3

34,3

1991

1,4

34,5

1,6

34,9

0,8

33,4

-2,9

26,8

1,2

34,2

-2,5

27,5

1992

2,7

36,8

3,0

37,4

0,1

32,2

-1,4

29,5

-2,7

27,1

-4,1

24,6

1993

0,2

32,4

0,8

33,4

2,8

37,0

-5,7

21,7

-4,2

24,4

-1,8

28,7

1994

3,7

38,7

3,1

37,6

3,2

37,8

-0,4

31,3

-1,3

29,7

-0,6

30,9

1995

-0,6

30,9

7,4

45,3

2,7

36,8

-3,3

26,1

1,7

35,1

-0,2

31,6

1996

0,3

32,5

-0,2

31,6

3,6

38,5

-2,0

28,4

-3,8

25,2

0,9

33,6

1997

1,5

34,7

3,2

37,8

0,4

32,7

-1,7

28,9

-3,1

26,4

-3,0

26,6

1998

2,5

36,5

4,7

40.5

-0,3

31,4

-2,2

28,0

-2,2

28,0

-3,9

25,0

1999

1,7

35,1

2,1

35,8

2,6

36,6

-3,3

26,1

-3,1

26,4

-3,1

26,4

2000

-3,0

26,6

4,9

40,8

3,8

38.8

-8,4

16,9

0,4

32,7

-0,9

30,4

2001

3,4

38,1

5,0

41,0

-3,9

25,0

-0,3

31,5

-0,6

30,9

-9,0

15,8

2002

-0,2

31,6

8,8

47,8

1,4

34,5

-5,2

22,6

0,6

33,1

-1,4

29,5

2003

3,9

38,1

 

 

 

 

-0,1

31,8

 

 

 

 

Aver.

1,25

34,2

3,95

39,1

1,64

34,95

-3,0

26,6

-1,2

29,8

-2,2

28,0

As a general conclusion, I could say that for the last 14 years the average temperature in January and February has risen - in January from 0,2°C (32,4°F) to 1,25°C (34,2°F) and in February from 2,0°C (35,6°F) to 3,95°C (39,1°F). The statistically warmer December became much colder than February and the average temperature changed from 2,2°C (36°F) to 1,6°C (35°F). We can see now that the winter approaches earlier but leaves earlier too, and it's duration is getting shorter. After the mild February we now receive arctic air masses in March and April, which is very bad for our agriculture.
The climate has changed, but we can't say for sure that it has warmed up. The coldest December on record happened just a year ago and regardless of the increasing of the average temperatures the arctic air still reaches our territory each winter and causes severe extreme lows, even for just 2 or 3 weeks.

************************

After January 2001 all temperature data is from The Polar Palms Nursery. Data for 1990-2000 is from the Agricultural university in Plovdiv, provided with the kind cooperation of Mrs. Ivanova.
 

Please note, English is not my mother language, you may find mistakes in the above text.

© 1999-2003 Kiril Donov, The Polar Palm Nursery - All rights reserved