Connecticut State The Connecticut Agricultural Experiment Station

For current Growing Degree Day information
Please call: (203)-974-8618
or Toll Free 1-(877)-855-2237 ask for extension 8618

or see the table below...

March 1st - October 31st 2019: Table showing the daily maximum and minimum temperatures, rain events, humidity, and growing degree days observed at our weather station, Lockwood Farm, Hamden at 8:00am.  Our Growing Degree Days are based on 50 degrees Fahrenheit.

Click on the name of the month to go to it directly.
[March] [April] [May] [June] [July] [August] [September] [October]

Day of the Month 24 hours ending observation:  MIN. temperature (F) 24 hours ending observation:  MAX. temperature (F) Rain Event (inches) Humidity Growing degree days
March 1 20 33 0.06 70 0
2
 28 34 0.22 70 0
3
 28 39 trace 38 0
4
 31 43 1 68 0
5
 13 40 0 37 0
6
 11 32 0 42 0
7
 9 26 0 39 0
8
 7 31 0 50 0
9
 16 37 0 48 0
10
 28 52 trace 75 0.25
11
 31 37 0.49 56 0.25
12
 31 51 0 43 0.34
13
 23 43 0 64 0.34
14
 35 43 trace 73 0.34
15
 45 54 0 75 1.53
16
 34 60 0.14 40 4.28
17
 25 54 0 47 4.92
18
 21 44 0 59 4.92
19
 23 45 0 63 4.92
20
 24 47 0 70 4.92
21
 33 50 0 69 4.92
22
 37 45 0.57 75 4.92
23
 30 43 0.08 44 4.92
24
 24 47 0 33 4.92
25
 44 55 0 37 6.43
26
 28 52 0 30 6.68
27
 26 48 0 36 6.68
28
 25 44 0 69 6.68
29
 41 49 0 67 6.68
30
 42 58 0 58 9.22
31
 37 65 0 65 14.19
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing degree days
32 58 0.38 41 16.14
2
 22 45 0 56 16.14
3
 36 47 0.1 69 16.14
4
 35 65 0 33 20.91
5
 31 56 0 34 22.19
6
 35    43    0.33 77 22.19
7
 36     66    0 70 27.48
8
 41 63 0.22 75 32
9
 39 55 0.02 74 33.23
10
 36 45 0.18 62 33.23
11
 32 56 0 39 34.54
12
 39 53 0 71 35.14
13
 52 58 1.38 74 40.14
14
 51 68 trace 50 49.64
15
 44 71 0.64 71 57.71
16
 38 63 0.16 36 61.94
17
 44 64 0       28      67.18
18
 42 62 0  50 71.39
19
 55 56 trace 70 76.89
20
 56 73 0.56 75 91.39
21
 47 65 0.91 74 97.17
22
 46 59 trace 74 100.52
23
 55 65 0.61 63 110.52
24
      47       71 0.01 46 118.52
25
 41 68 0 50 125.14
26
 47 63 0.12 76 130.15
27
 43 56 2.22 40 131.98
28
 36 53 0 47 132.52
29
 34 48 trace 41 132.52
30
 42 58 0.2 74 135.07
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing degree days
May 1
 43 57 trace 70 137.3
2
 46 52 0.04
    137.81     
3
 47 70 0 71 145.44
4
 45 54 0.37
146.63
5
 49 69 0.22
153.33
6
 47 56 0.93
155.53
7
 46 69 0
162.85
8
 47 66 0.05 57 169.01
9
 44 71 0
177.08
10
 49 59 0
180.45
11
 52       68       trace
190.45
12
 40 69 0.31
197.39
13
 40 58 58
199.77
14
 39 52 0.43
200.11
15
 43 51 0.05
200.26
16
 47 67 0.01
206.79
17
 46 72 0
215.24
18
 49 75 trace
223.82
19
 51 74 0
236.32
20
 61 72 0.23
252.82
21
 54 85 0.22
272.32
22
 49 71 0
279.64
23
 53 75 0.06
293.64
24
 57 67 trace 45 305.64
25
 49 75 0
314.22
26
 56 71 0.03
327.72
27
 59 87 0
350.72
28
 51 81 0
366.72
29
 46 65 1.1
372.49
30
 52 63 0.63
379.99
31
 56 62 0.62
388.99
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing degree days
56 80 0 41 406.99
2
 57 78 0
424.49
3
 49 75 0.1
433.06
4
 41 71 0
440.92
5
 59 70 0
455.42
6
 65 76 0 71 475.92
7
 58 84 0
496.92
8
 56 79 0
514.42
9
 50 80 0 40 529.42
10
 48 74 0
538.24
11
 61 74 1.11 73 555.74
12
 51 76 0.01
569.24
13
 54 74 trace 65 583.24
14
 52 57 0.39
587.74
15
 51 72 0
599.24
16
 62 78 trace
619.24
17
 64 75 0.17
638.74
18
 64 77 0.05
659.24
19
 63 68 1.9
20
 63 73 0.08
692.74
21
 64 70 0.12
709.74
22
 58 76 0.07
726.74
23
 58 79 0
745.24
24
 57 83 0
765.24
25
 64 86 0
790.24
26
 66 71 0.2
808.74
27
 62 87 0
28
 60 89 0
857.74
29
 66 90 0
885.74
30
 66 87 0
912.24
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing degree days
62 81 0.07 59 933.74
2
 60 86 0 54 956.74
3
 66 84 0       64       981.74
4
 63 89 0       52       1007.74
5
 64 89 0 64 1034.24
6
 73 84 0 65 1062.74
7
 67 86 0.34 67 1089.24
8
 63 84 0 69 1112.74
9
 60 80 0 66 1132.74
10
 59 88 0 56 1156.74
11
 68 88 0 64 1184.74
12
 71 84 0.35 73 1212.24
13
 64 88 0 47 1238.24
14
 66 85 0 50 1263.74
15
 61 90 0 50 1289.24
16
 59 87 0 55 1312.24
17
 70 89 0 67 1341.74
18
 67 92 1.2 74 1371.24
19
 66 77 1.09 74 1392.74
20
 73 88 0 53 1423.24
21
 74 94 0 54 1457.24
22
 67 96 0 50 1488.74
23
 63 86 1.52 74 1513.24
24
 62 72 0.05 73 1530.24
25
 60 83 0 59 1551.74
26
 61 83 0 58 1573.74
27
 64 86 0 60 1598.74
28
 65 81 0 66 1621.74
29
 68 90 0 55 1650.74
30
 69 91 0 65 1680.74
31
 68 91 0 68 1710.24
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing degree days
64 88 0.45 70 1736.24
2
 63 88 0 55 1761.74
3
 64 83 0 60 1785.24
4
 65 85 trace 45 1810.24
5
 63 88 0 49 1835.74
6
 61 82 0 76 1857.24
7
 66 76 0 74 1878.24
8
 67 84 0.57 72 1903.74
9
 62 86 0.02 58 1927.74
10
 62 84 0 74 1950.74
11
 55 80 0 71 1968.24
12
 55 81 0 61 1986.24
13
 67 85 0.04 74 2012.24
14
 67 75 0.18 72 2033.24
15
 63 82 0 72 2055.74
16
 62 86 0 66 2079.74
17
 68 85 0 74 2106.24
18
 67 86 0.41 75 2132.74
19
 67 89 trace 73 2160.74
20
 69 91 0.44 57 2190.74
21
 66 89 0 74 2218.24
22
 69 85 0.06 74 2245.24
23
 63 90 0.26 76 2271.74
24
 56 76 0.07 71 2287.74
25
 59 77 0 71 2305.74
26
 53 73 0 62 2318.74
27
 51 78 0 74 2333.24
28
 58 75 0 72 2349.74
29
 64 76 0.52 72 2369.74
30
 53 83 0 60 2387.74
31
 63 85 0 60 2411.74
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing degree days
56 79 0 60 2429.24
2
 56 78 0 74 2446.24
3
 61 74 1 73 2463.74
4
 58 84 0 73 2484.74
5
 56 81 0.65 71 2503.24
6
 56 72 0 72 2517.24
7
 54 65 0.22 55 2526.74
8
 56 74 0 56 2541.74
9
 57 77 0 72 2558.74
10
       57       78 0 74 2576.24
11
 65 76 0 74 2596.74
12
 67 85 trace 74 2622.74
13
 52 71 0.04 75 2634.24
14
 50 73 0 73 2645.74
15
 60 74 0.35 74 2662.74
16
 59 81 trace 74 2682.74
17
 48 74 trace 57 2691.55
18
 51 74 0 74 2704.05
19
 42 65 0 74 2709.52
20
 40 74 0 76 2718.53
21
 50 78 0 44 2732.53
22
 52 85 0 53 2751.03
23
 62 86 0 73 2775.03
24
 60 85 0.36 73 2797.53
25
 51 76 0 58 2811.03
26
 51 77 0 75 2825.03
27
 46 80 0.29 74 2836.41
28
 51 74 0 55 2848.91
29
 64 79 0 75 2870.41
30
 50 77 0 61 2883.91
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing degree days
60 70 0 74 2898.91
3
 66 79 0.2 74 2921.41
2
 50 88 0.07 69 2940.41
4
 50 53 0.35 76 2941.91
5
 36 61 0 50 2945.17
6
 37 62 0 74 2948.9
7
 49 69 0 70 2955.59
8
 55 76 0.17 74 2971.09
9
 50 61 trace 62 2976.59
10
 49 54 0.74 51 2978.13
11
 51 63 trace 51 2985.13
12
 53 62 0 68 2992.63
13
 50 65 0 48 3000.13
14
 47 68 0 70 3007.03
15
 38 70 0 58 3014.19
16
 37 64 0 74 3018.74
17
 49 63 2.85 49 3023
18
 49 57 0 55 3026.14
19
 31 59 0 74 3028.39
20
 37 61 0 74 3031.72
21
 47 57 0.2 72 3034.34
22
 44 68 0 68 3041.21
23
      49       58 0.58 71 3044.23
24
 36 66 0 72 3049.52
25
 39 67 0 71 3055.52
26
 48 65 0 54 3061.21
27
 47 62 0.06 70 3065.83
28
 46      57      1.89 70 3068.35
29
 49 63 trace 74 3073.1
30
 51 57 0.3 74 3077.1
31
       56       64 0.4 74 3087.1