Perry's Perennial Pages

Yearly Climate Summary

Milton, Vermont Perennial Trials, USDA zone 4b

Dr. Leonard Perry, Extension Professor, University of Vermont


Summer 2011 | Summer 2012 

 

Yearly Summary

 (begun Spring 2010)

2010

20114

Lowest temperature, F

na

-22

Lowest temperature date

na

1/24

Number of days =/<-10 F

na

5
Number of days =/<-20 F na 1

Last spring frost date

5/17

4/20

First killing frost date

10/12

tbd

Frost-free season, days

146

tbd

1,2Mean high, F

80

84

1,2Mean low, F

58

54

Highest temperature, F

103

100

Highest temperature date

7/7

7/22

2Number of days =/> 90 F

18 (20%)

24 (25%)

2Number of days =/<60 F

51 (55%)

79 (86%)

2Number of days  =/<50 F

14 (15%)

27 (29%)

3Annual rainfall, inches

41

tbd
Rainfall above/below average +7 tbd

3Annual snowfall, inches

na

128
Snowfall above/below average na +55

1High at 1400, Low at 0600 hours

2Jun, Jul, Aug; 92 days total

3 Burlington NWS,  rainfall Jan-Dec, snowfall Jul-Jun

4 Summer 2011 June July August

Mean high, F

80 89 83

Mean low, F

52 55 54

Lowest temperature, F

40 46 45

Highest temperature, F

96 100 95

Number of days =/> 90 F

4 16 4

Number of days =/ <60 F

28 24 27

Number of days =/<50 F

11 8 8
largest degree day range (date) 48 (6/7) 47 (7/16) 43 (8/5)
soil (2in. depth)--high 77 81 77
soil--low 56 60 58
soil--average 67 70 67

 

4 Summer 2012  June July August

Mean high, F

80 88 87

Mean low, F

51 53 53

Lowest temperature, F (date)

40 (14,15) 40(20) 38(19)

Highest temperature, F (date)

101 (21) 100(14) 99(4)

Number of days =/> 90 F

7 13 8

Number of days =/ <60 F

24 25 26

Number of days =/ <50 F

15 10 9
largest degree day range (date) 48 (24) 51(12) 47(22)
soil (2in. depth)--high 80 79 73
soil--low 55 59 58
soil--average 67 71 68

 



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